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| 1 | In vitro derivation of functional insulin-producing cells from human embryonic stem cells显示文摘为人的胚胎的茎(ES ) 的自强和区别的能力细胞为对待类型 Idiabetes mellitus 为胰腺的贝它细胞的产生使他们成为潜在的来源。这里,我们报导一最新发展了并且有效方法,在aserum免费的系统执行了,区分进生产胰岛素的 cells.Activin A 的导致的人的 ES 房间它在起始的阶段被使用从人的 EScells 导致权威的内胚叶区别,是由权威的内胚叶标记 Sox17 和 Brachyury.Further 的表示检测了, all-trans retinoic 酸( RA )被用来支持胰腺的区别,由早胰腺的抄写因素 pdx1 和 hlxb9 的表示显示了。在成熟 inDMEM/F12 以后有 bFGF 和菸碱的没有浆液的媒介,区分的房间表示了小岛特定的标记象 C 肽,胰岛素,胰高血糖素和 glut2 那样。百分比 ofC-peptide-positive 房间超过了 15% 。由这些房间的胰岛素和 C 肽的分泌物在葡萄糖层次对应于变化。当移植了进肾的囊时, ofStreptozotocin (STZ ) 对待裸体老鼠,这些区分的人的 ES 房间熬过并且维持贝它房间标记基因的表示包括 C 肽, pdx1, glucokinase, nkx6.1, IAPP, pax6and Tcf1。百分之三十只移植裸体老鼠展出了 stableeuglycemia 的明显的恢复;并且改正的显型被支撑超过六个星期。我们的新方法为学习人的胰开发的机制提供一个有希望的试管内区别模特儿并且说明为类型 Idiabetes mellitus 的处理使用人的 ES 房间的潜力。 | Wei Jiang Yan Shi Dongxin Zhao Song Chen Jun Yong Jing Zhang Tingting Qing Xiaoning Sun Peng Zhang Mingxiao Ding Dongsheng Li Hongkui Deng | 2007 | Cell Research2007，17，4： | 38 |
| 2 | AXL is a candidate receptor for SARS-CoV-2 that promotes infection of pulmonary and bronchial epithelial cells显示文摘The current coronavirus disease 2019(COVID-19)pandemic presents a global public health challenge.The viral pathogen responsible,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),binds to the host receptor ACE2 through its spike(S)glycoprotein,which mediates membrane fusion and viral entry.Although the role of ACE2 as a receptor for SARS-CoV-2 is clear,studies have shown that ACE2 expression is extremely low in various human tissues,especially in the respiratory tract.Thus,other host receptors and/or co-receptors that promote the entry of SARS-CoV-2 into cells of the respiratory system may exist.In this study,we found that the tyrosine-protein kinase receptor UFO(AXL)specifically interacts with the N-terminal domain of SARS-CoV-2 S.Using both a SARS-CoV-2 virus pseudotype and authentic SARS-CoV-2,we found that overexpression of AXL in HEK293T cells promotes SARS-CoV-2 entry as efficiently as overexpression of ACE2,while knocking out AXL significantly reduces SARS-CoV-2 infection in HI 299 pulmonary cells and in human primary lung epithelial cells.Soluble human recombinant AXL blocks SARS-CoV-2 infection in cells expressing high levels of AXL.The AXL expression level is well correlated with SARS-CoV-2 S level in bronchoalveolar lavage fluid cells from COVID-19 patients.Taken together,our findings suggest that AXL is a novel candidate receptor for SARS-CoV-2 which may play an important role in promoting viral infection of the human respiratory system and indicate that it is a potential target for future clinical intervention strategies. | Shuai Wang Zongyang Qiu Yingnan Hou Xiya Deng Wei Xu Tingting Zheng Peihan Wu Shaofang Xie Weixiang Bian Chong Zhang Zewei Sun Kunpeng Liu Chao Shan Aifu Lin Shibo Jiang Youhua Xie Qiang Zhou Lu Lu Jing Huang Xu Li | 2021 | Cell Research2021，31，2： | 39 |
| 3 | Ten cities cross-sectional questionnaire survey of children asthma and other allergies in China显示文摘Asthma,rhinitis and eczema(allergic or non-allergic)have increased throughout the world during the last decades,especially among children.Changes in the indoor environment are suspected to be important causes.China has experienced a dramatic change in indoor environmental exposures during the past two decades.However,such changes and their associations with children’s asthma and other health aspects have not been thoroughly studied.China,Children,Homes,Health(CCHH),Phase I,was a cross-sectional questionnaire survey of 48219 children 1–8 years old in 10 Chinese cities during 2010–2012.The questionnaire includes the International Study of Asthma and Allergies in Childhood(ISAAC)core health questions and additional questions regarding housing,life habits and outdoor environment.In health analyses,children aged 3–6 years old were included.The prevalences of doctor diagnosed asthma varied from 1.7%to 9.8%(mean 6.8%),a large increase from 0.91%in 1999 and 1.50%in2000.The prevalence of wheeze,rhinitis and atopic eczema(last 12 months)varied from 13.9%to 23.7%,24.0%to 50.8%and4.8%to 15.8%,respectively.Taiyuan had the lowest prevalences of all illnesses and Shanghai the highest,except for wheezewhere the highest value was for Urumqi.We found(1)no obvious association between disease prevalences and ambient PM10concentrations and(2)higher prevalences of disease in humid climates with hot summers and cold winters,but with no centrally heated buildings.Associations between the diseases and economic status as indexed by Gross Domestic Product(GDP)requires further study. | ZHANG YinPing LI BaiZhan HUANG Chen YANG Xu QIAN Hua DENG QiHong ZHAO ZhuoHui LI AnGui ZHAO JiaNing ZHANG Xin QU Fang HU Yu YANG Qin WANG Juan ZHANG Ming WANG Fang ZHENG XiaoHong LU Chan LIU ZhiJian SUN YueXia MO JinHan ZHAO YiLi LIU Wei WANG TingTing NORBCK Dan BORNEHAG Carl-Gustaf SUNDELL Jan | 2013 | Chinese Science Bulletin2013，58，34： | 22 |
| 4 | The growth mechanism of the basic magnesium chloride whisker显示文摘Based on the theoretical model of anion coordination polyhedron growth units, the growth mechanism of the basic magnesium chloride whisker was discussed in this paper.It was found that the basic magnesium chloride whisker habits were related to the different environments in which anion coordination polyhedra grew. The growth units of basic magnesium chloride whiskers are [Mg - (OH) 4]2 -and [Mg - Cl 4]2 -. The growth process is the incorporation process of growth units. Growth units will have different incorporations and orientations caused by different system characters or heating. Furthermore, the formation mechanism of basic magnesium chloride whiskers was also interpreted using anion coordination polyhedron growth units. | WU JianSong XIAO YingKai SU JingYun DENG TingTing FENG JieRong MO YuYing ZENG Mei | 2011 | Science China(Technological Sciences)2011，54，3： | 18 |
| 5 | A Transcriptional Network Promotes Anthocyanin Biosynthesis in Tomato Flesh显示文摘Dietary anthocyanins are important health-promoting antioxidants that make a major contribution to the quality of fruits. It is intriguing that most tomato cultivars do not produce anthocyanins in fruit. However, the purple tomato variety Indigo Rose, which has the dominant Aft locus combined with the recessive atv locus from wild tomato species, exhibits light-dependent anthocyanin accumulation in the fruit skin. Here, we report that Aft encodes a functional anthocyanin activator named SlAN2-like, while atv encodes a nonfunctional version of the anthocyanin repressor SlMYBATV. The expression of SlAN2-like is responsive to light, and the functional SlAN2-like can activate the expression of both anthocyanin biosynthetic genes and their regulatory genes, suggesting that SlAN2-like acts as a master regulator in the activation of anthocyanin biosynthesis. We further showed that cultivated tomatoes contain nonfunctional alleles of SlAN2-like and therefore fail to produce anthocyanins. Consistently, expression of a functional SlAN2-like gene driven by the fruit-specific promoter in a tomato cultivar led to the activation of the entire anthocyanin biosynthesis pathway and high-level accumulation of anthocyanins in both the peel and flesh. Taken together, our study exemplifies that efficient engineering of complex metabolic pathways could be achieved through tissue-specific expression of master transcriptional regulators. | Chuanlong Sun Lei Deng Minmin Du Jiuhai Zhao Qian Chen Tingting Huang Hongling Jiang Chang-Bao Li Chuanyou Li | 2020 | Molecular Plant2020，13，1： | 17 |
| 6 | Preparation and Characterization of KNO3/Diatomite Shape-Stabilized Composite Phase Change Material for High Temperature Thermal Energy Storage显示文摘A new potassium nitrate(KNO_3)/diatomite shape-stabilized composite phase change material(SSCPCM) was prepared by the mixing and sintering method. KNO_3 served as the phase change material(PCM) for thermal energy storage, while diatomite acted as the carrier matrix to provide the structural strength and prevent the leakage of PCM. It was found that KNO_3 could be retained 65 wt% into pores and on surfaces of diatomite without the leakage of melted KNO_3 from the SS-CPCM. The calculated filling rate of molten KNO_3 that could enter into the disc-like shape pore of diatomite verified the scanning electronic microscopy images of SS-CPCM. X-ray diffraction and Fourier transform infrared spectroscopy results showed that no reaction occurred between KNO_3 and diatomite, performing good compatibility. According to the differential scanning calorimetry results, after 50 thermal cycles, the phase change temperatures for melting and freezing of SS-CPCM with 65 wt% KNO_3 were changed from 330.23 °C and 332.90 °C to330.11 °C and 332.84 °C and corresponding latent heats varied from 60.52 J/g and 47.30 J/g to 54.64 J/g and 41.25 J/g, respectively. The KNO_3/diatomite SS-CPCM may be considered as a potential storage media in solar power plants for thermal energy storage. | Yong Deng Jinhong Li Tingting Qian Weimin Guan Xiang Wang | 2017 | Journal of Materials Science & Technology2017，33，2： | 15 |
| 7 | A method for the production and expedient screening of CRISPR/Cas9-mediated non-transgenic mutant plants显示文摘Developing CRISPR/Cas9-mediated non-transgenic mutants in asexually propagated perennial crop plants is challenging but highly desirable.Here,we report a highly useful method using an Agrobacterium-mediated transient CRISPR/Cas9 gene expression system to create non-transgenic mutant plants without the need for sexual segregation.We have also developed a rapid,cost-effective,and high-throughput mutant screening protocol based on Illumina sequencing followed by high-resolution melting(HRM)analysis.Using tetraploid tobacco as a model species and the phytoene desaturase(PDS)gene as a target,we successfully created and expediently identified mutant plants,which were verified as tetra-allelic mutants.We produced pds mutant shoots at a rate of 47.5%from tobacco leaf explants,without the use of antibiotic selection.Among these pds plants,17.2%were confirmed to be non-transgenic,for an overall non-transgenic mutation rate of 8.2%.Our method is reliable and effective in creating non-transgenic mutant plants without the need to segregate out transgenes through sexual reproduction.This method should be applicable to many economically important,heterozygous,perennial crop species that are more difficult to regenerate. | Longzheng Chen Wei Li Lorenzo Katin-Grazzini Jing Ding Xianbin Gu Yanjun Li Tingting Gu Ren Wang Xinchun Lin Ziniu Deng Richard J.McAvoy Frederick G.Gmitter Jr. Zhanao Deng Yunde Zhao Yi Li | 2018 | Horticulture Research2018，5，1： | 12 |
| 8 | Configurable Floating-Point FFT Accelerator on FPGA Based Multiple-Rotation CORDIC显示文摘Fast Fourier transform(FFT) accelerator and Coordinate rotation digital computer(CORDIC) algorithm play important roles in signal processing. We propose a configurable floating-point FFT accelerator based on CORDIC rotation, in which twiddle direction prediction is presented to reduce hardware cost and twiddle angles are generated in real time to save memory. To finish CORDIC rotation efficiently, a novel approach in which segmentedparallel iteration and compress iteration based on CSA are presented and redundant CORDIC is used to reduce the latency of each iteration. To prove the efficiency of our FFT accelerator, four FFT accelerators are prototyped into a FPGA chip to perform a batch-FFT. Experimental results show that our structure, which is composed of four butterfly units and finishes FFT with the size ranging from 64 to8192 points, occupies 33230(3%) REGs and 143006(30%)LUTs. The clock frequency can reach 122 MHz. The resources of double-precision FFT is only about 2.5 times of single-precision while the theoretical value is 4. What's more, only 13331 cycles are required to implement 8192-points double-precision FFT with four butterfly units in parallel. | CHEN Jiyang LEI Yuanwu PENG Yuanxi HE Tingting DENG Ziye | 2016 | Chinese Journal of Electronics2016，25，6： | 10 |
| 9 | Realization of non-equilibrium process for high thermoelectric performance Sb-doped Ge Te显示文摘Pristine GeTe shows inferior thermoelectric performance around unit due to the large carrier concentration induced by the presence of intrinsic high concentration of Ge vacancy. In this study, we report a thermoelectric figure of merit ZT of 1.56 at 700 K, realized in Sb-doped GeTe based thermoelectric(TE)materials via combined effect of suppression of intrinsic Ge vacancy and Sb doping. The nonequilibrium nature during melt spinning process plays very important role. For one thing, it promotes the homogeneity in Ge_(1-x)Sb_xTe samples and refines the grain size of the product. Moreover the persistent Ge precipitated as impurity phase in the traditional synthesis process is found to be dissolved back into the GeTe sublattice, accompanying with a drastic suppression of Ge vacancies concentration which in combination with Sb electron doping significantly reduced the inherent carrier concentration in GeTe.Low carrier concentration, approaching the optimum carrier concentration ~3.74 × 10^(-20) cm^(-3) and a high power factor of 4.01 × 10^(-3) W m^(-1)K^(-2) at 750 K are achieved for Ge_(0.98)Sb_(0.02) Te sample. In addition,the enhanced grain boundary phonon scattering by refining the grain size through melt spinning(MS)process, coupled with the intensified alloying phonon scattering via Sb doping leads to low thermal conductivity of 1.53 W m^(-1) K^(-1) at 700 K for Ge_(0.94) Sb_(0.06) Te sample. All those contribute to a high ZT value,representing over 50% improvement in the ZT value compared to the Sb free samples, which provides an alternative way for ultrafast synthesis of high performance GeTe based thermoelectric material. | Evariste Nshimyimana Xianli Su Hongyao Xie Wei Liu Rigui Deng Tingting Luo Yonggao Yan Xinfeng Tang | 2018 | Science Bulletin2018，63，11： | 6 |
| 10 | Natural Climate Solutions for China:The Last Mile to Carbon Neutrality显示文摘“I call on all leaders worldwide to declare a State of Climate Emergency in their own countries until carbon neutrality is reached.”–António GUTERRES(United Nations Secretary General),12 December,2020 There is no shortcut to a carbon neutral society;solutions are urgently required from both energy&industrial sectors and global ecosystems.While the former is often held accountable and emphasized in terms of its emissions reduction capability,the latter(recently termed natural climate solutions)should also be assessed for potential and limitations by the scientific community,the public,and policy makers. | Zhangcai QIN Xi DENG Bronson GRISCOM Yao HUANG Tingting LI Pete SMITH Wenping YUAN Wen ZHANG | 2021 | Advances in Atmospheric Sciences2021，38，6： | 5 |
| 11 | Determination and vertical distribution of nitrogen species in sediments of Funan Rivers, Chengdu City, China显示文摘 | Yi WU Tingting WANG Qing XU Mengxia LIAO Tianong DENG | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 4 |
| 12 | OsbZIP76 interacts with OsNF-YBs and regulates endosperm cellularization in rice (Oryza sativa)显示文摘Following double fertilization,plant endosperm nuclei undergo syncytial divisions,followed by synchro-nous cellularization.Cellularization is a key event during endosperm development,but our understanding of its regulation is limited to Arabidopsis.In this study we show that OsbZIP76 regulates cellularization in rice(Oryza sativa).Activation of OsbZIP76 coincided with the initiation of cellularization,and its knockdown or knockout mutants exhibited precocious cellularization.Genes involved in en-dosperm development or starch biosynthesis were pre-maturely activated in the osbzip76 caryopsis.As a putative transcription factor,OsbZIP76 alone lacked transcriptional activation activity;however,it interacted with the nuclear factor Y(NF-Y)family transcription factors OsNF-YB9 and OsNF-YB1 in yeast and in planta.OsbZIP76 and OsNF-YB9 were predominantly expressed in the endosperm and the proteins colocalized.Seeds of osnf-yb1 and osbzip76 mu-tants showed reduced size and reduced apparent amylose content.The parent-of-origin-dependent expression of OsbZIP76 is variable in different rice accessions.In sum-mary,OsbZIP76 is an endosperm-expressed imprinted gene that regulates endosperm development in rice. | Baixiao Niu Hui Deng Tingting Li Sandeep Sharma Qianbin Yun Qianru Li Zhiguo E Chen Chen | 2020 | Journal of Integrative Plant Biology2020，62，12： | 4 |
| 13 | Indole methylation protects diketopiperazine configuration in the maremycin biosynthetic pathway显示文摘The maremycin biosynthetic gene cluster has been identified in Streptomyces sp. B9173. Comparative metabolic profiling with knockout mutant strains led to the identification of new products correlated to the maremycin biosynthesis, in particular the'demethyl'-maremycins with an unexpected D-tryptophan unit. A biosynthetic pathway for the maremycins is proposed and plausible reasoning for tryptophan epimerization in the demethylmaremycin biosynthesis is also provided. | Yingxia Lan Yi Zou Tingting Huang Xiaozheng Wang Nelson L. Brock Zixin Deng Shuangjun Lin | 2016 | Science China Chemistry2016，59，9： | 3 |
| 14 | Characterization of the imprinting and expression patterns of ZAG2 in maize endosperm and embryo显示文摘ZAG2 has been identified as a maternally expressed imprinted gene in maize endosperm.Our study revealed that paternally inherited ZAG2 alleles were imprinted in maize endosperm and embryo at 14 days after pollination(DAP), and consistently imprinted in endosperm at 10, 12, 16, 18, 20, 22, 24, 26, and 28 DAP in reciprocal crosses between B73 and Mo17. ZAG2 alleles were also imprinted in reciprocal crosses between Zheng 58 and Chang7-2 and between Huang C and 178. ZAG2 alleles exhibited differential imprinting in hybrids of 178 × Huang C and B73 × Mo17, while in other hybrids ZAG2 alleles exhibited binary imprinting. The tissue-specific expression pattern of ZAG2 showed that ZAG2 was expressed at a high level in immature ears, suggesting that ZAG2 plays important roles in not only kernel but ear development. | Chaoxian Liu Jiuguang Wang Xiupeng Mei Xiaojing Deng Tingting Yu Xiaoli Liu Guoqiang Wang Zhizhai Liu Yilin Cai | 2015 | The Crop Journal2015，3，1： | 3 |
| 15 | Effects of Huangban Bianxing One decoction combined with ranibizumab on treating exudative age-related macular degeneration显示文摘OBJECTIVE:To evaluate the clinical efficacy and safety of Chinese medicine formula Huangban Bianxing One decoction(HBOD)combined with ranibizumab for treating exudative age-related macular degeneration(AMD)patients.METHODS:Totally 75 cases with exudative AMD(75 eyes)were enrolled in this study and randomly divided into two groups to receive either HBOD with ranibizumab or only ranibizumab.Early treatment diabetic retinopathy study(ETDRS)letters for the best corrected visual acuity,center macular thickness(CMT),height of the lesion,fundus hemorrhage area,fundus fluorescein leakage area as the main outcomes and safety indexes were estimated and compared before and after treatment for 3 or 6 months.RESULTS:Comparing with the before treatment,ETDRS letter scores of both groups after treatment at month 3 obtained a greater improvement(P<0.05),but the significant improvement only existed in the HBOD+ranibizumab group at month 6(P<0.01),and better than the ranibizumab group(P<0.05).At month 3,the CMT and lesion height of both groups were significantly lower than those before treatment(P<0.01 or P<0.05)and the HBOD+ranibizumab group had a similar result at month6(P<0.01).The hemorrhage area and fluorescein leakage area of the HBOD+ranibizumab group were also significantly reduced and also smaller than those of the ranibizumab group at month 6(P<0.01 or P<0.05).During treatment,no significant adverse events relating to HBOD or ranibizumab treatment were elucidated.CONCLUSION:HBOD combined with ranibizumab can improve visual acuity and reduce hemorrhage and fluorescein leakage of patients with exudative AMD.These results also indicated that HBOD may function as an effective and safe adjuvant drug for exudative AMD. | Luo Dan Deng Tingting Yuan Wei Deng Hui Meng Huan Jin Ming | 2019 | Journal of Traditional Chinese Medicine2019，39，6： | 3 |
| 16 | Ultrasound-guided percutaneous microwave ablationfor small liver cancers adjacent to large vessels:long-term outcomes and strategies显示文摘Objective The aim of the study was to evaluate the long-term efficacy and safety of percutaneous microwave ablation(MWA) for small hepatic cancers adjacent to large vessels and to investigate the treatment strategies.Methods From March 2009 to July 2015,a total of 86 patients with 94 tumors underwent ultrasound(US)-guided percutaneous MWA,with pathologically proven or clinically diagnosed liver cancers measuring ≤ 3 cm in diameter and located ≤ 10 mm from a major vessel(n = 94).Regular follow-up after MWA was performed to assess treatment efficacy and perioperative complications.Results The complete ablation rate at 1 month after MWA was 93.3%(84/90).The 6-,9-,12-,24-,36-,48-,60-,72-,and 84-month local recurrence rates were 2.4%,2.4%,3.7%,6.6%,8.4%,8.4%,8.4%,8.4%,and 8.4%,respectively.There were no major complications.The perioperative special complication rate was 5.32%(5/94),including 3 cases of moderate liver function damage and 2 cases of limited sub-capsular hematoma.Conclusion Percutaneous MWA for small hepatic cancers adjacent to large vessels is feasible,effective,and safe with an acceptable rate of complications.The key point is to strictly follow operative indications and adopt proper treatment strategies. | Ruobing Liu Kaiyan Li Hongchang Luo Wei Zhang Tingting Zhang Meng Gao Wenhui Zha Xinwu Cui Youbin Deng | 2017 | Oncology and Translational Medicine2017，3，2： | 3 |
| 17 | Architecture of Co-layered double hydroxide nanocages/graphene composite electrode with high electrochemical performance for supercapacitor显示文摘A facile hydrolysis method was applied to fabricate high-performance Co-layered double hydroxide(LDH)nanocages/graphene composites for supercapacitors. The materials exhibit enhanced rate capability than the counterpart electrode free of graphene while maintaining a high specific capacitance. In addition,such Co-LDH nanocages/graphene composites display an excellent cycling stability; the capacitance retention of Co-LDH nanocages/graphene composite electrode remains 90.4% after 10000 cycles at a current density of 2 A g(-1). The integration of high capacity of double hydroxide and outstanding conductivity of graphene makes the delicately-designed composites promising candidates for electrode materials for supercapacitors. | Xianyu Chu Ting Deng Wei Zhang Dong Wang Xiaofei Liu Cai Zhang Tingting Qin Liyun Zhang Bingsen Zhang Chengmeng Chen Weitao Zheng | 2018 | Journal of Energy Chemistry2018，27，2： | 2 |
| 18 | Dynamic modeling and simulation of deploying process for space solar power satellite receiver显示文摘To reveal some dynamic properties of the deploying process for the solar power satellite via an arbitrarily large phased array(SPS-ALPHA) solar receiver, the symplectic Runge-Kutta method is used to simulate the simplified model with the consideration of the Rayleigh damping effect. The system containing the Rayleigh damping can be separated and transformed into the equivalent nondamping system formally to insure the application condition of the symplectic Runge-Kutta method First, the Lagrange equation with the Rayleigh damping governing the motion of the system is derived via the variational principle. Then, with some reasonable assumptions on the relations among the damping,mass, and stiffness matrices, the Rayleigh damping system is equivalently converted into the nondamping system formally, so that the symplectic Runge-Kutta method can be used to simulate the deploying process for the solar receiver. Finally, some numerical results of the symplectic Runge-Kutta method for the dynamic properties of the solar receiver are reported. The numerical results show that the proposed simplified model is valid for the deploying process for the SPS-ALPHA solar receiver, and the symplectic Runge-Kutta method can preserve the displacement constraints of the system well with excellent long-time numerical stability. | Tingting YIN Zichen DENG Weipeng HU Xindong WANG | 2018 | Applied Mathematics and Mechanics(English Edition)2018，39，2： | 2 |
| 19 | Investigation of suitable precursors for manganese oxide catalysts in ethyl acetate oxidation显示文摘The control of ethyl acetate emissions from fermentation and extraction processes in the pharmaceutical industry is of great importance to the environment.We have developed three Mn_(2)O_(3)catalysts by using different Mn precursors(MnCl_(2),Mn(CH_(3)COO)_(2),MnSO_(4)),named as Mn_(2)O_(3)-Cl,-Ac,-SO_(4).The tested catalytic activity results showed a sequence with Mn precursors as:Mn_(2)O_(3)-Cl>Mn_(2)O_(3)-Ac>Mn_(2)O_(3)-SO_(4).The Mn_(2)O_(3)-Cl catalyst reached a complete ethyl acetate conversion at 212℃(75℃lower than that of Mn_(2)O_(3)-SO_(4)),and this high activity 100%could be maintained high at 212℃for at least 100 hr.The characterization data about the physical properties of catalysts did not show an obvious correlation between the structure and morphology of Mn_(2)O_(3)catalysts and catalytic performance,neither was the surface area the determining factor for catalytic activity in the ethyl acetate oxidation.Here we firstly found there is a close linear relationship between the catalytic activity and the amount of lattice oxygen species in the ethyl acetate oxidation,indicating that lattice oxygen species were essential for excellent catalytic activity.Through H_(2)temperature-programmed reduction(H_(2)-TPR)results,we found that the lowest initial reduction temperature over the Mn_(2)O_(3)-Cl had stronger oxygen mobility,thus more oxygen species participated in the oxidation reaction,resulting in the highest catalytic performance.With convenient preparation,high efficiency,and stability,Mn_(2)O_(3)prepared with MnCl_(2)will be a promising catalyst for removing ethyl acetate in practical application. | Yan Zhang Meng Wang Shunyu Kang Tingting Pan Hua Deng Wenpo Shan Hong He | 2021 | Journal of Environmental Sciences2021，33，6： | 2 |
| 20 | Recent advance in synthesis and application of heteroatom zeolites显示文摘Incorporation of heteroatoms into the framewo rk of zeolites has become a significant strategy to improve their performance in catalysis and adsorption,because the obtained heteroatom zeolites exhibit quite different properties from the conventional aluminosilicate zeolites in aspects of surface acidity,pore structures,particle size and so on.In this review,the progress on the heteroatom zeolites including their synthesis and application is highlighted.First,the recent advance on the design and synthesis of different heteroatom zeolites is summarized.Special emphasis is placed on the introduction and comparison of three typical methods,including the direct synthesis,post synthesis and improved direct synthesis,for the traditional heteroatom zeolites(such as TS-1,Sn-MFI,Sn-β) and newly-reported heteroatom zeolites(such as W-MFI,Mo-MFI).According to their intrinsic characteristics,the application of heteroatom zeolites in diverse fields,such as production of fine chemicals,air pollution control and biomass conversion is then discussed.Finally,the challenges and perspective on the future development of heteroatom zeolites in low-cost preparation and practical application are proposed. | Tingting Pang Xuanyu Yang Chenyi Yuan Ahmed A.Elzatahry Abdulaziz Alghamdi Xing He Xiaowei Cheng Yonghui Deng | 2021 | Chinese Chemical Letters2021，32，1： | 2 |
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