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| 1 | Rocky Desertification Risk Zone Delineation in Karst Plateau Area:A Case Study in Puding County,Guizhou Province显示文摘Karst rocky desertification is a geo-ecological problem in Southwest China.The rocky desertification risk zone delineation could be used as a guide for the regional and hierarchical rocky desertification management and prevention.We chose the middle and lower reaches of the Houzhai underground basin on the karst plateau in Puding County, Guizhou Province, China as the study area and selected land use type, elevation, slope, aspect, lithology and settlement buffer as the main driving factors of the rocky desertification.The potential risk of rocky desertification was quantified with the factor-weights union method and statistical analysis method.Five grades of rocky desertification risk were delineated based on Geographic Information System.The extremely low, low, moderate, high and extremely high rocky desertification risk zones accounted for 5.01%, 44.17%, 33.92%, 15.59% and 1.30%, respectively.As a whole, the rocky desertification risk level was moderate because the area of low and moderate rocky desertification risk zones occupied 78.09% of the study area.However, more than half of the area(about 50.81%) was predicted to have moderate rocky desertification risk and above, indicating that the study area was subject to rocky desertification.Rocky desertification risk was higher in the southeast and lower in the northwest of the study area.Distinct differences in the distribution of rocky desertification risk zones corresponding to different factors have been found. | ZHANG Panpan HU Yuanman XIAO Duning LI Xiuzhen YIN Jie HE Hong S | 2010 | Chinese Geographical Science2010,20,1: | 15 |
| 2 | Effects of inherent alkali and alkaline earth metals on nitrogen transformation during steam gasification of Shengli lignite显示文摘This work evaluated the effects of inherent alkali and alkaline earth metals on nitrogen transformation during steam gasification of Shengli lignite at the temperature of 873-1173 K in a fluidized-bed/fixed-bed quartz reactor. The results indicated that the alkali metal Na and alkaline earth metals Ca, Mg in coal have different effects on inherent nitrogen transformation to NH3, HCN and char-N during the lignite steam gasification. Specifically during the steam gasification of Shengli lignite, Na and Ca, Mg not only catalyze the inherent nitrogen conversions to NH3, but also promote the secondary reactions of the nascent char-N as well as the generation of NH3 from the generated HCN, meanwhile they also inhibited the inherent nitrogen conversion to HCN and char-N. The presence of Na, Ca and Mg hindered the formation of oxidized nitrogen (N-X) functional groups, but enhanced pyridinic nitrogen (N-6) and quaternary nitrogen's (N-Q) formation in char. | Panpan Zheng Yonggang Wang Chen Liu Weijie Guo Lei Bai Xiao Hu Xiongchao Lin | 2019 | International Journal of Coal Science & Technology2019,6,2: | 2 |
| 3 | Effectiveness and safety of Pingxiao capsule(平消胶囊)as adjuvant therapy in treatment of breast cancer:a systematic review and Meta-analysis显示文摘OBJECTIVE:To systematically review the effectiveness and safety of Pingxiao capsule(平消胶囊)adjuvant chemotherapy in the treatment of breast cancer.METHODS:A total of 8 databases including the Cochrane Library,PubMed,EMBASE,Engineering Index,Chinese Biomedical Literature Database,Wanfang database,China National Knowledge Infrastructure Database,and China Science and Technology Journal Database were searched for the Randomized Controlled Trials(RCTs)of Pingxiao capsule combined with chemotherapy in the treatment of breast cancer published before June 2022.Two researchers independently screened the literature,extracted data,and evaluated the risk of bias.R language was used for estimating risks of bias of included studies,data analysis,and plotting.RESULTS:A total of 15 RCTs involving 1272 patients were included in this study.Meta-analysis results indicated that compared with chemotherapy alone,Pingxiao capsule combined with chemotherapy could significantly improve breast cancer patients'objective response rate of breast cancer patients[rate ratio(RR)=1.35,95%confidence interval(CI)(1.12,1.63),P=0.0017],the disease control rate[RR=1.16,95%CI(1.08,1.25),P<0.0001],the quality of life[RR=1.42,95%CI(1.16,1.74),P=0.007],and the level of the immune cells[CD3+:standardized mean difference(SMD)=1.42,95%CI(0.76,2.09),P<0.001;CD4+:SMD=1.18,95%CI(0.70,1.66),P<0.001].In addition,Pingxiao capsule combined with chemotherapy can also significantly reduce CD8+level(P<0.0001)and reduce the symptoms of decreased white blood cell count[SMD=0.62,95%CI(0.39,0.85),P<0.0001],and the occurrence of adverse reactions such as gastrointestinal adverse reactions and limb pain(P<0.05).CONCLUSIONS:Pingxiao capsule can significantly improve the efficacy of chemotherapy,the quality of life and immune function of patients,and reduce the clinical side effects caused by chemotherapy.However,highquality randomized clinical trials with large samples are required for further verification of these results. | YANG Yuqing CHEN Yuhuan LI Chunxiao LING Xiao WANG Panpan GUO Jing ZHANG Yingying | 2023 | Journal of Traditional Chinese Medicine2023,43,5: | 1 |
| 4 | Bijective soft set decision system based parameters reduction under fuzzy environments显示文摘 | Gong Ke Wang Panpan Xiao Zhi | 2013 | Applied Mathematical Modelling2013,37,6: | 1 |
| 5 | Ameliorative effect of scutellarin on acute alcohol brain injury in mice显示文摘Drinking culture has high significance in both China and the world,whether in the entertainment sector or in social occasions;according to the World Health Organization's 2018 Global Alcohol and Health Report,about 3 million people died from excessive drinking in 2016,accounting for 5.3%of the total global deaths that year.Oxidative stress and inflammation are the most common pathological phenomena caused by alcohol abuse(Snyder et al.,2017). | Tianmeng ZHANG Kun WANG Hui FAN Qiankun YANG Xiao ZHANG Feixue LIU Xin FENG Yi CHEN Daoyang TENG Panpan ZHAO Jingquan DONG | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022,23,3: | 1 |
| 6 | Robust architecture of 2D nano Mg-based borohydride on graphene with superior reversible hydrogen storage performance显示文摘Efficient technical strategies to synthesize hydrides with high capacity and favorable reversibility are significant for the development of novel energy materials.Herein,nano Mg-based borohydride,Mg(BH_(4))_(2),with robust architecture was designed and prepared by confining on graphene through a solution selfconfinement method.The Mg(BH_(4))_(2) confined on graphene displays a wrinkled 2D nano layer morphology within 8.8 nm thickness.Such 2D nano Mg(BH_(4))_(2) can start dehydrogenation at 67.9℃ with a high capacity of 12.0 wt.%,which is 190.5℃ lower than pristine Mg(BH_(4))_(2).The isothermal dehydrogenation tests and kinetics fitting results indicate the 2D nano Mg(BH_(4))_(2) possesses much-enhanced dehydrogenation kinetics of 31.3 kJ/mol activation energy,which is only half of pristine Mg(BH_(4))_(2).The thermodynamics of the 2D nano Mg(BH_(4))_(2) is also verified by PCT tests,of which Gibbs free energy value for the confined 2D nano Mg(BH_(4))_(2) is estimated to be-18.01 kJ/mol H_(2),lower than-16.36 kJ/mol H_(2) of pristine Mg(BH_(4))_(2).Importantly,the reversibility of the confined 2D nano Mg(BH_(4))_(2) is significantly enhanced to over 90%capacity retention with relatively kinetics stability during 10 cycles.The mechanism analyses manifest that Mg(BH_(4))_(2) exhibits stable 2D nano morphology during 10 cyclic tests,resulting in the greatly reduced H diffusion path and the improved de/rehydrogenation kinetics of the 2D nano Mg(BH_(4))_(2).Based on theoretical calculations of Mg(BH_(4))_(2) and the intermediate MgB12H12 confined on graphene,the charge transfer status of both samples is modified to facilitate de/rehydrogenation,thus leading to the significant thermodynamic improvements of the reversible hydrogen storage performances for 2D nano Mg(BH_(4))_(2).Such investigation of the Mg-based borohydride will illuminate prospective technical research of energy storage materials. | Xuancheng Wang Yuxiao Jia Xuezhang Xiao Panpan Zhou Jiapeng Bi Jiacheng Qi Ling Lv Fen Xu Lixian Sun Lixin Chen | 2023 | Journal of Materials Science & Technology2023,,15: | 0 |
| 7 | A fast on-demand preparation of injectable self-healing nanocomposite hydrogels for efficient osteoinduction显示文摘Injectable hydrogels have been considered as promising materials for bone regeneration,but their osteoinduction and mechanical performance are yet to be improved.In this study,a novel biocompatible injectable and self-healing nano hybrid hydrogel was on-demand prepared via a fast(within 30 s)and easy gelation approach by reversible Schiff base formed between-CH=O of oxidized sodium alginate(OSA)and-NH2 of glycol chitosan(GCS)mixed with calcium phosphate nanoparticles(CaP NPs).Its raw materials can be ready in large quantities by a simple synthesis process.The mechanical strength,degradation and swelling behavior of the hydrogel can be readily controlled by simply controlling the molar ratio of-CH=O and-NH2.This hydrogel exhibits pH responsiveness,good degradability and biocompatibility.The hydrogel used as the matrix for mesenchymal stem cells can significantly induce the proliferation,differentiation and osteoinduction in vitro.These results showed this novel hydrogel is an ideal candidate for applications in bone tissue regeneration and drug delivery. | Panpan Pan Xiao Chen Huaran Xing Yonghui Deng Jingdi Chen Fahad AAlharthi Abdulaziz AAlghamdi Jiacan Su | 2021 | Chinese Chemical Letters2021,32,7: | 0 |
| 8 | New Zircon U-Pb Ages of the Granodiorites in the Southern Great Xing’an Range and their Tectonic Implications显示文摘The Southern Great Xing'an Range,Northeast China,is located in the eastern part of the Central Asian Orogenic Belt.It is considered to be one of the most important metallogenic belts,commonly hosting a series of skarn.porphyry and magmatic hydrothermal Pb-Zn-Ag-Cu Mo-Sn polymetallic deposits(Fig.1).Complex tectonic events have occurred in this region,including the closure of the Palco-Asian Ocean in the Late Palaeozoic,the opening and closure of the Mongol Okhotsk Ocean and the subduction of the Paleo-Pacific Ocean in the Mesozoic. | ZHAO Qing XIAO Rongge LIU Jingdang ZHANG Yanfei LIANG Shuai LI Panpan | 2020 | Acta Geologica Sinica(English Edition)2020,94,2: | 0 |
| 9 | Modulating the tumor microenvironment via oncolytic virus and PI3K inhibition synergistically restores immune checkpoint therapy response in PTEN-deficient glioblastoma显示文摘Dear Editor,Glioblastoma(GBM)is a lethal primary brain cancer,with a median survival of less than 2 years.1 Immune checkpoint blockades(ICBs)have revolutionized cancer therapy in the last decade,but they have little clinical benefit in GBM.1 Genomic and transcriptomic analysis revealed a significant enrichment of PTEN mutations in GBM patients resistant to ICBs.2 PTEN deficiency activates the phosphatidylinositol 3-kinase(PI3K)-AKT pathway to shape an immunosuppressive microenvironment. | Fan Xing Jingshu Xiao Junyu Wu Jiaming Liang Xiaoyu Lu Liping Guo Ping Li Panpan Hou Chunmei Li Deyin Guo | 2021 | Signal Transduction and Targeted Therapy2021,6,8: | 0 |
| 10 | Scutellarin prevents acute alcohol-induced liver injury via inhibiting oxidative stress by regulating the Nrf2/HO-1 pathway and inhibiting inflammation by regulating the AKT,p38 MAPK/NF-κB pathways显示文摘Alcoholic liver disease(ALD)is the most frequent liver disease worldwide,resulting in severe harm to personal health and posing a serious burden to public health.Based on the reported antioxidant and anti-inflammatory capacities of scutellarin(SCU),this study investigated its protective role in male BALB/c mice with acute alcoholic liver injury after oral administration(10,25,and 50 mg/kg).The results indicated that SCU could lessen serum alanine aminotransferase(ALT)and aspartate aminotransferase(AST)levels and improve the histopathological changes in acute alcoholic liver;it reduced alcohol-induced malondialdehyde(MDA)content and increased glutathione peroxidase(GSH-Px),catalase(CAT),and superoxide dismutase(SOD)activity.Furthermore,SCU decreased tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),and IL-1βmessenger RNA(mRNA)expression levels,weakened inducible nitric oxide synthase(iNOS)activity,and inhibited nucleotide-binding oligomerization domain(NOD)-like receptor protein 3(NLRP3)inflammasome activation.Mechanistically,SCU suppressed cytochrome P450 family 2 subfamily E member 1(CYP2E1)upregulation triggered by alcohol,increased the expression of oxidative stress-related nuclear factor erythroid 2-related factor 2(Nrf2)and heme oxygenase-1(HO-1)pathways,and suppressed the inflammation-related degradation of inhibitor of nuclear factor-κB(NF-κB)-α(IκBα)as well as activation of NF-κB by mediating the protein kinase B(AKT)and p38 mitogen-activated protein kinase(MAPK)pathways.These findings demonstrate that SCU protects against acute alcoholic liver injury via inhibiting oxidative stress by regulating the Nrf2/HO-1 pathway and suppressing inflammation by regulating the AKT,p38 MAPK/NF-κB pathways. | Xiao ZHANG Zhicheng DONG Hui FAN Qiankun YANG Guili YU Enzhuang PAN Nana HE Xueqing LI Panpan ZHAO Mian FU Jingquan DONG | 2023 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023,24,7: | 0 |
| 11 | Macrophage-camouflaged epigenetic nanoinducers enhance chemoimmunotherapy in triple negative breast cancer显示文摘Chemoimmunotherapy has been approved as standard treatment for triple-negative breast cancer(TNBC),but the clinical outcomes remain unsatisfied.Abnormal epigenetic regulation is associated with acquired drug resistance and T cell exhaustion,which is a critical factor for the poor response to chemoimmunotherapy in TNBC.Herein,macrophage-camouflaged nanoinducers co-loaded with paclitaxel(PTX)and decitabine(DAC)(P/D-mMSNs)were prepared in combination with PD-1 blockade therapy,hoping to improve the efficacy of chemoimmunotherapy through the demethylation of tumor tissue.Camouflage of macrophage vesicle confers P/D-mMSNs with tumor-homing properties.First,DAC can achieve demethylation of tumor tissue and enhance the sensitivity of tumor cells to PTX.Subsequently,PTX induces immunogenic death of tumor cells,promotes phagocytosis of dead cells by dendritic cells,and recruits cytotoxic T cells to infiltrate tumors.Finally,DAC reverses T cell depletion and facilitates immune checkpoint blockade therapy.P/D-mMSNs may be a promising candidate for future drug delivery design and cancer combination therapy in TNBC. | Tong Gao Xiao Sang Xinyan Huang Panpan Gu Jie Liu Yongjun Liu Na Zhang | 2023 | Acta Pharmaceutica Sinica B2023,13,10: | 0 |
| 12 | Composite B-cell and T-cell lymphomas:clinical,pathological,and molecular features of three cases and literature review显示文摘Composite lymphoma(CL)involving B-cell lymphoma and T-cell lymphoma is extremely rare.Herein,we report three such cases using immunohistochemistry,flow cytometry,and the next-generation sequencing(NGS)to identify the pathological and molecular characteristics of CL.In the first case,the patient was admitted to hospital for generalized pruritic maculopapular rash over the whole body.An excisional biopsy of the skin lesions showed T-cell lymphoma.At the same time,the staging bone marrow(BM)biopsy revealed a diffuse large B-cell lymphoma(DLBCL).After R-CHOP(rituximab,cyclophosphamide,doxorubicin,vincristine,and prednisone)therapies,the patient produced a good response with substantial dissipation of the rashes and relief of skin.The other two patients were admitted to hospital due to lymphadenopathy and were diagnosed with DLBCL and follicular lymphoma(FL)after core needle biopsy of lymph nodes,BM biopsy,BM aspiration,and flow cytometry.Following R-CHOP and R-COP(rituximab,cyclophosphamide,vincristine,and prednisone)therapies,they achieved complete remission unconfirmed(CRu)and complete remission(CR).However,one or two years later,they suffered a relapse of lymphadenopathy.The shocking fact was that re-biopsy of lymphadenopathy revealed peripheral T-cell lymphoma(PTCL)and angioimmunoblastic T-cell lymphoma(AITL).NGS findings identified DNA methyltransferase 3a(DNMT3a),isocitrate dehydrogenase 2(IDH2),Ras homolog gene family,member A(RHOA),splicing factor 3B subunit 1(SF3B1),and tumor protein p53(TP53)mutations.After immunochemotherapy,these patients achieved CRu and CR again.Nevertheless,they suffered a second relapse of T-cell lymphoma.Finally,they died due to progression of disease.We found that the occurrence of CL is associated with Epstein-Barr virus infection and DNMT3a,IDH2,and TP53 mutations,and the prognosis of the disease is closely related to the T-cell lymphoma components. | Xueli JIN Hui LIU Jing LI Xibin XIAO Xianggui YUAN Panpan CHEN Boxiao CHEN Yun LIANG Fengbo HUANG | 2023 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023,24,8: | 0 |
| 13 | Integrating thermal energy storage and microwave absorption in phase change material-encapsulated core-sheath MoS_(2)@CNTs显示文摘Developing advanced nanocomposite integrating solar-driven thermal energy storage and thermal management functional microwave absorption can facilitate the cutting-edge application of phase change materials(PCMs).To conquer this goal,herein,two-dimensional MoS_(2) nanosheets are grown in situ on the surface of one-dimensional CNTs to prepare core-sheath MoS_(2)@CNTs for the encapsulation of paraffin wax(PW).Benefiting from the synergistic enhancement photothermal effect of MoS_(2) and CNTs,MoS_(2)@CNTs is capable of efficiently trapping photons and quickly transporting phonons,thus yielding a high solar-thermal energy conversion and storage efficiency of 94.97%.Meanwhile,PW/MoS_(2)@CNTs composite PCMs exhibit a high phase change enthalpy of 101.60 J/g and excellent lo ng-term thermal storage durability after undergoing multiple heating-cooling cycles.More attractively,PW/MoS_(2)@CNTs composite PCMs realize thermal management functional microwave absorption in heat-related electronic application scenarios,which is superior to the single microwave absorption of traditional materials.The minimum reflection loss(RL) for PW/MoS_(2)@CNTs is-28 dB at 12.91 GHz with a 2.0 mm thickness.This functional integration design provides some insightful references on developing advanced microwave absorbing composite PCMs,holding great potential towards high-efficiency solar energy utilization and thermally managed microwave absorption fields. | Panpan Liu Yang Li Zhaodi Tang Junjun Lv Piao Cheng Xuemei Diao Yu Jiang Xiao Chen Ge Wang | 2023 | Journal of Energy Chemistry2023,,9: | 0 |
| 14 | Successive digestion of tilapia collagen by serine proteinase and proline specific endopeptidase to produce novel angiotensin l-converting enzyme inhibitory peptides显示文摘Serine proteinase,purified from the hepatopancreas of Pacific white shrimp(Litopenaeus vannamei), was used to hydrolyze acid solubilized collagen(ASC)isolated from Nile tilapia(Oreochromis sp.)skin to produce angiotensin I-converting enzyme(ACE)inhibitory peptides(ACEIPs).A series of column chromatography assays were used to separate the ACEIPs.A peptide,NPARTCR,was isolated as it exhibited high ACE inhibition potential.Further digestion of this peptide by a proline specific endopeptidase(PSEP),produced a pentapeptide ARTCR with ACE inhibitory activity(IC_(50))of 77.0 pmol/L.Both NPARTCR and ARTCR inhibited ACE in a non-competitive manner.An in vivo study in rats demonstrated that ARTCR has ACE inhibitory activity via lowering systolic blood pressure in spontaneously hypertensive rats(SHRs).These results suggest that processing by-products from shrimp and tilapia are ideal raw materials for the production of serine proteinase and collagen,respectively.Serine proteinase and collagen are both ideal raw materials that can be used to derive ACE inhibitory active peptides against hypertension. | Xin Hua Lechang Sun Chan Zhong Qiang Wu Panpan Xiao Asami Yoshida Guangming Liu Minjie Cao | 2020 | Marine Life Science & Technology2020,2,3: | 0 |
| 15 | A review of classical hydrogen isotopes storage materials显示文摘Hydrogen storage alloys(HSAs)are attracting widespread interest in the nuclear industry because of the generation of stable metal hydrides after tritium absorption,thus effectively preventing the leakage of radioactive tritium.Commonly used HSAs in the hydrogen isotopes field are Zr2M(M=Co,Ni,Fe)alloys,metallic Pd,depleted U,and ZrCo alloy.Specifically,Zr2M(M=Co,Ni,Fe)alloys are considered promising tritium-getter materials,and metallic Pd is utilized to separate and purify hydrogen isotopes.Furthermore,depleted U and ZrCo alloy are well suited for storing and delivering hydrogen isotopes.Notably,all the aforementioned HSAs need to modulate their hydrogen storage properties for complex operating conditions.In this review,we present a comprehensive overview of the reported modification methods applied to the above alloys.Alloying is an effective amelioration method that mainly modulates the properties of HSAs by altering their local geometrical/electronic structures.Besides,microstructural modifications such as nano-sizing and nanopores have been used to increase the specific surface area and active sites of metallic Pd and ZrCo alloys for enhancing de-/hydrogenation kinetics.The combination of metallic Pd with support materials can significantly reduce the cost and enhance the pulverization resistance.Moreover,the poisoning resistance of ZrCo alloy is improved by constructing active surfaces with selective permeability.Overall,the review is constructive for better understanding the properties and mechanisms of hydrogen isotope storage alloys and provides effective guidance for future modification research. | Yang Liu Zhiyi Yang Panpan Zhou Xuezhang Xiao Jiacheng Qi Jiapeng Bi Xu Huang Huaqin Kou Lixin Chen | 2024 | Materials Reports(Energy)2024,4,1: | 0 |
| 16 | Structure basis for allosteric regulation of lymphocytic choriomeningitis virus polymerase function by Z matrix protein显示文摘DearEditor,The Arenaviridae family(recently assigned to the Bunyavirales order)is a group of emerging viruses that include causative agents of severe hemorrhagic fevers with high mortality in humans(de la Torre,2009).Lymphocytic choriomeningitis virus(LCMV)is the prototypic member of the Arenaviridae family and belongs to the Old World(OW)arenavirus together with Lassa virus(LASV),which are distinct from the New World(NW)arenavirus[e.g.Machupo virus(MACV)and Junin virus(JUNV)].LCMV infection in the fetus and newborm results in severe impairment of brain development associated with sensory loss and mental retardation and is also known to be associated with severe systemic infection with high mortality in transplantation patients(Palacios et al.,2008). | Lu Liu Panpan Wang Aijun Liu Leike Zhang Liming Yan Yu Guo Gengfu Xiao Zihe Rao Zhiyong Lou | 2023 | Protein & Cell2023,14,9: | 0 |
| 17 | Drying-rewetting cycles reduce bacterial diversity and carbon loss in soil on the Loess Plateau of China显示文摘With global climate change, soil drying-rewetting(DRW) events have intensified and occurred frequently on the Loess Plateau of China. However, the extent to which the DRW cycles with different wetting intensities and cycle numbers alter microbial community and respiration is barely understood. Here,indoor DRW one and four cycles treatments were implemented on soil samples obtained from the Loess Plateau, involving increase of soil moisture from10% water-holding capacity(WHC) to 60% and 90% WHC(i.e., 10%–60% and 10%–90% WHC, respectively). Constant soil moistures of 10%, 60%,and 90% WHC were used as the controls. The results showed that bacterial diversity and richness decreased and those of fungi remained unchanged under DRW treatments compared to the controls. Under all moisture levels, Actinobacteriota and Ascomycota were the most dominant bacterial and fungal phyla,respectively. The bacterial network was more complex than that of fungi, indicating that bacteria had a greater potential for interaction and niche sharing under DRW treatments. The pulse of respiration rate declined as the DRW cycle increased under 10%–60% WHC, but remained similar for different cycles under 10%–90% WHC. Moreover, the DRW treatments reduced the overall carbon loss, and the direct carbon release under 10%–60% WHC was larger than that under 10%–90% WHC. The cumulative CO_(2) emissions after four DRW cycles were significantly positively correlated with microbial biomass carbon and negatively correlated with fungal richness(Chao 1). | Panpan JIAO Haibing XIAO Zhongwu LI Lei YANG Peng ZHENG | 2023 | Pedosphere2023,33,6: | 0 |
| 18 | Polypyrrole-boosted photothermal energy storage in MOF-based phase change materials显示文摘Infiltrating phase change materials(PCMs)into nanoporous metal–organicframeworks(MOFs)is accepted as a cutting-edge thermal energy storageconcept.However,weak photon capture capability of pristine MOF-basedcomposite PCMs is a stumbling block in solar energy utilization.Towards thisgoal,we prepared advanced high-performance pristine MOF-based photothermalcomposite PCMs by simultaneously integrating photon absorber guest(polypyrrole[PPy])and thermal storage guest(1-octadecanol[ODA])intoan MOF host(Cr-MIL-101-NH2).The coated PPy layer on the surface ofODA@MOF not only serves as a photon harvester,but also serves as a phononenhancer.Resultantly,ODA@MOF/PPy composite PCMs exhibit intense andbroadband light absorption characteristic in the ultraviolet–visible–nearinfraredregion,and higher heat transfer ability than ODA@MOF.Importantly,the photothermal conversion and storage efficiency of ODA@MOF/PPy-6%is up to 88.3%.Additionally,our developed MOF-based photothermalcomposite PCMs also exhibit long-standing antileakage stability,energystorage stability,and photothermal conversion stability.The proposed coatingstrategy and in-depth understanding mechanism are expected to facilitate thedevelopment of high-efficiency MOF-based photothermal composite PCMs insolar energy utilization. | Panpan Liu Mengke Huang Xiao Chen Yan Gao Yang Li Cheng Dong Ge Wang | 2023 | Interdisciplinary Materials2023,2,3: | 0 |
| 19 | Influence of composition and size on the thermodynamic stability and structural evolution of CuAlNi nanoclusters显示文摘The heating process for CuAlNi nanoclusters with cuboctahedral structure was studied by molecular dynamics simulation with the embedded atom method.A diffusionless martensitic transformation from the cuboctahedral(CO)to the icosahedral(ICO)structure before the melting point was found in some CuAlNi nanoclusters.The effects of element composition and cluster size on the thermodynamic stability and structural transformation of trimetallic nanoclusters were investigated.The results show that the CO-ICO transformation temperature was size-dependent and occurred only for small clusters.It was also observed that the CO-ICO transformation temperature firstly dropped and then raised as A1 concentration increased,which may be strongly related to the release of excess energy.Furthermore,the surface segregation phenomenon was also observed that the lower surface energy components,such as A1 and Cu atoms,segregated to the surface of CuAlNi nanoclusters.The changes in the melting points of CuAlNi nanoclusters with different alloy compositions and cluster sizes were also studied.And furthermore,the physical basis of structural transition of CuAlNi nanoclusters was discussed. | Qing Liu Ye Su Keke Song Xiaoxu Wang Panpan Gao Chutian Wang Yuqin Xiao Xiaodong Jian Ping Qian | 2020 | Progress in Natural Science:Materials International2020,30,4: | 0 |
| 20 | Tightened1D/3Dcarbonheterostructure infiltratingphase change materials for solar-thermoelectric energy harvesting:Faster and better显示文摘Extensive use of thermal energy in daily life is ideal for reducing carbon emissions to achieve carbon neutrality;however,the effective collection of thermal energy is a major hurdle.Thermoelectric(TE)conversion technology based on the Seebeck effect and thermal energy storage technology based on phase change materials(PCMs)represent smart,feasible,and research-worthy approaches to overcome this hurdle.However,the integration of multiple thermal energy sources freely existing in the environment for storage and output of thermal and electrical energy simultaneously still remains a huge challenge.Herein,three-dimensional(3D)nanostructured metal-organic frameworks(MOFs)are in situ nucleated and grown onto carbon nanotubes(CNTs)via coordination bonding.After calcination,the prepared core-shell structural CNTs@MOFs are transformed into tightened 1D/3D carbon heterostructure loading Co nanoparticles for efficient solar-thermoelectric energy harvesting.Surprisingly,the corresponding composite PCMs show a record-breaking solar-thermal conversion efficiency of 98.1%due to the tightened carbon heterostructure and the local surface plasmon resonance effect of Co nanoparticles.Moreover,our designed all-in-one composite PCMs are also capable of creating an electrical potential of 0.5 mV based on the Seebeck effect without a TE generator.This promising approach can store thermal and electrical energy simultaneously,providing a new direction in the design of advanced all-in-one multifunctional PCMs for thermal energy storage and utilization. | Zhaodi Tang Piao Cheng Panpan Liu Yan Gao Xiao Chen Ge Wang | 2023 | Carbon Energy2023,5,6: | 0 |