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10篇 您的检索式:作者名="Zifeng Feng"
    题名 作者 年代 出处 被引量
1Hierarchically porous carbon/red phosphorus composite for high-capacity sodium-ion battery anode显示文摘Red phosphorus has received remarkable attention as a promising anode material for sodium ion batteries(NIBs) due to its high theoretical capacity. However, its practical application has been impeded by its intrinsic low electronic conductivity and large volume variations during sodiation/desodiation process. Here, we design a composite to confine nanosized red phosphorus into the hierarchically porous carbon(HPC) walls by a vaporization-condensation strategy. The mass loading of P in the HPC/P composite is optimized to deliver a reversible specific capacity of 2,202 m Ah/gpbased on the mass of red P(836 m Ah/gcompositebased on the total composite mass), a high capacity retention over 77% after100 cycles, and excellent rate performance of 929 m Ah/gpat 2 C. The hierarchical porous carbon serves as the conductive networks, downsize the red phosphorus to nanoscale, and provide free space to accommodate the large volume expansions. The suppressed mechanical failure of the red phosphorus also enhances the stability of solid-electrolyte interface(SEI) layer, which is confirmed by the microscopy and impedance spectroscopy after the cycling tests. Our studies provide a feasible approach for potentially viable high-capacity NIB anode.Meng Li Na Feng Mengmeng Liu Zifeng Cong Jiangman Sun Chunhua Du Quanbin Liu Xiong Pu Weiguo Hu 2018Science Bulletin2018,63,15:5
2Ag@Au core/shell triangular nanoplates with dual enzyme-like properties for the colorimetric sensing of glucose显示文摘Due to the serious harm of diabetes to human health,development of sensitive assays for glucose level is of high significance for early prevention and treatment of diabetes.Currently,most conventional enzyme-based glucose sensors suffer from high cost and low stability due to the inherent defects of natural enzymes.Herein,we develop a pure nanozyme-based glucose detection method using Ag@Au core/shell triangular nanoplates(TNPs),which combines glucose oxidase(GOD)-and horseradish peroxidase(HRP)-like activities of the Au shell and inherent plasmonic properties of Ag TNPs.The sensing mechanism is based on the fact that the Au shell possessed GOD-like activity,enabling the oxidation of glucose to produce H2O2,which can further etch the silver core,leading to the decrease of absorbance at 800 nm and the color change from blue to colorless.Compared with the previous nanozymes-based glucose sensors,our method avoids the use of enzymes and organic chromogenic agent.Moreover,the stability of the Ag@Au core/shell TNPs is much better than that of Ag TNPs due to the protection by the coating of the Au shell.This method was successfully applied to the detection of urine samples from patients with diabetes,indicating its practical applicability for real sample analysis.Ao Liu Mengmeng Li Jingxiang Wang Fan Feng Yu Zhang Zhiwei Qiu Yuzhu Chen Benjamin Edem Meteku Congying Wen Zifeng Yan Jingbin Zeng 2020Chinese Chemical Letters2020,31,5:3
3Extremely Stable Sulfuric Acid Covalent Organic Framework for Highly Effective Ammonia Capture显示文摘Ammonia(NH_(3))is one of the most important industrial feedstocks in the fields of fertilizers,drugs,explosives,ordnance,commercial cleanings,and so on.However,the features of ammonia such as high toxicity and corrosivity,and difficulty in handling would inevitably increase the risk of environmental damage and the deterioration of natural/public lands.Although sorts of solid adsorbents such as metal oxides,zeolites,organic polymers,activated carbons,and metal organic frameworks have been applied in NH_(3) capture,they still show low uptake capacity,low affinities,and instability.Herein,we developed the first case of a highly stable sulfuric acid covalent organic framework(COF),namely TpBD-(SO_(3)H)_(2),as NH_(3) capturer,in which sulfonic acid sites can strongly interact with NH_(3) molecules,and enhance the performance of NH_(3) sorption.As a result,TpBD-(SO_(3)H)_(2) shows high chemical stability under strong acid and water conditions,an important merit for the potential application in harsh environment.And it also exhibits high ammonia capacity of 11.5 mmol·g^(−1) at 298 K and 1.0 bar,making it one of the best in all chemically stable NH_(3) adsorbents up to date.This work thus develops sulfuric acid COF materials as a new platform for ammonia capture and storage.Jinli Li Yun Xiao Feng Shui Mao Yi Zhiyuan Zhang Xiongli Liu Laiyu Zhang Zifeng You Rufeng Yang Shiqi Yang Baiyan Li Xian-He Bu 2022Chinese Journal of Chemistry2022,40,20:1
4Superhigh intrinsic proton conductivity in densely carboxylic covalent organic framework显示文摘Herein,we developed for the first time two carboxylic acid based intrinsic proton conductors(COOHCOF-1 and COOH-COF-2)via pre-assembly approach.The obtained COOH-COF-1 and COOH-COF-2 not only show outstanding chemical and thermal stabilities,but also exhibit superhigh intrinsic proton conductive behaviors.Especially,the intrinsic proton conductivity of COOH-COF-2 is up to 2.6×10^(−3) S/cm at 353 K and 98%RH,which is the highest value among all the reported acid functionalized COFs.This work lights up the way for the rational design of functional COFs with remarkably intrinsic proton conducting performance and related practical applications.Jinli Li Junhua Wang Feng Shui Mao Yi Zhiyuan Zhang Xiongli Liu Laiyu Zhang Zifeng You Rufeng Yang Shiqi Yang Baiyan Li Xian-He Bu 2023Chinese Chemical Letters2023,34,8:0
5Empowering beginners in bioinformatics with ChatGPT显示文摘The impressive conversational and programming abilities of ChatGPT make it an attractive tool for facilitating the education of bioinformatics data analysis for beginners.In this study,we proposed an iterative model to fine-tune instructions for guiding a chatbot in generating code for bioinformatics data analysis tasks.We demonstrated the feasibility of the model by applying it to various bioinformatics topics.Additionally,we discussed practical considerations and limitations regarding the use of the model in chatbot-aided bioinformatics education.Evelyn Shue Li Liu Bingxin Li Zifeng Feng Xin Li Gangqing Hu 2023Quantitative Biology2023,11,2:0
6Efficacy and safety of the combination of Liushen capsules and Arbidol in the treatment of COVID-19:protocol for a randomized,multi-center pilot study显示文摘Background:From early experience,some Traditional Chinese Medicine and Arbidol had effects of against COVID-19,infer that the combination of Liushen capsules and Arbidol may further increase the therapeutic.Methods/Design:We conducted a randomized,blank parallel-controlled,open-label,multi-center,basal therapy-loaded design clinical trial.A total of 40 patients are going to be recruited after satisfying the criteria.Participants will be allocated randomly into the treatment group with the combination of Arbidol and Liushen capsules and the control group with the basic therapy.Each group will receive treatment at least 7-days or until the virus becomes negative,and visits after drug administration at day 3(visit 1),the day when the virus becomes negative(visit 2),day 7(visit 3),the day before discharge(visit 4)and day 28(visit 5),to collect their survival status and disease prognosis so that the efficacy and safety of a combination of Arbidol and Liushen capsule will be evaluated.Discussion:We described the protocol of the first clinical trial for treatment COVID-19 by using a combination of Arbidol and Liushen capsules.The results of this study will provide a basis for the design and sample size estimate of subsequent large-scale clinical trials.Trial registration:This study has been registered at Chinese clinical trial Registry(chictr.org.cn):ChiCTR2000029993.Yangqing Zhan Zhengtu Li Jiayang He Shaoqiang Li Ye Lin Jingyi Liang Jie Zhou Yanmei Wu Xuandan Su Feng Ye Zifeng Yang 2020TMR Modern Herbal Medicine2020,3,4:0
7Amorphous Se species anchored into enclosed carbon skeleton bridged by chemical bonding toward advanced K-Se batteries显示文摘Potassium-selenium(K-Se)batteries have attracted significant attention as one of the most promising alternatives of lithium-ion storage systems owing to high energy density and low cost.In the design of Se-based cathode materials,however,the low utilization rate of active Se and the rapid dissolution of polyselenides seriously weaken the capacity and cycle stability.Therefore,how to make full use of Se species without loss during the charge and discharge process is the key to design high-performance Se-based cathode.In this paper,a 3 D'water cube'-like Se/C hybrid(denoted as Se-O-PCS)is constructed with the assistance of Na_(2)CO_(3) templates.Thanks to the abundant carbonate groups(CO_(3)^(2-))originated from the Na_(2)CO_(3) templates,the molten Se species are firmly anchored into the pore of carbon skeleton by strong C-O-Se bonding.Thus,this unique Se-O-PCS model not only improves the utilization of active Se species,but also can reduce the contact with the electrolyte to inhibit the shuttle effect of polyselenides.Moreover,flexible carbon skeleton gives Se-O-PCS hybrid a good electrical conductivity and excellent structural robustness.Consequently,the resultant Se-O-PCS hybrid is endowed with an obviously enhanced K-ions storage property.Li Zhou Yongpeng Cui Dongqing Kong Wenting Feng Xiuli Gao Youguo Yan Hao Ren Han Hu Qingzhong Xue Zifeng Yan Wei Xing 2021Journal of Energy Chemistry2021,30,10:0
8Cancer cell employs a microenvironmental neural signal transactivating nucleus-mitochondria coordination to acquire stemness显示文摘Cancer cell receives extracellular signal inputs to obtain a stem-like status,yet how tumor microenvironmental(TME)neural signals steer cancer stemness to establish the hierarchical tumor architectures remains elusive.Here,a pan-cancer transcriptomic screening for 10852 samples of 33 TCGA cancer types reveals that cAMP-responsive element(CRE)transcription factors are convergent activators for cancer stemness.Deconvolution of transcriptomic profiles,specification of neural markers and illustration of norepinephrine dynamics uncover a bond between TME neural signals and cancer-cell CRE activity.Specifically,neural signal norepinephrine potentiates the stemness of proximal cancer cells by activating cAMP-CRE axis,where ATF1 serves as a conserved hub.Upon activation by norepinephrine,ATF1 potentiates cancer stemness by coordinated trans-activation of both nuclear pluripotency factors MYC/NANOG and mitochondrial biogenesis regulators NRF1/TFAM,thereby orchestrating nuclear reprograming and mitochondrial rejuvenating.Accordingly,single-cell transcriptomes confirm the coordinated activation of nuclear pluripotency with mitochondrial biogenesis in cancer stem-like cells.These findings elucidate that cancer cell acquires stemness via a norepinephrine-ATF1 driven nucleus-mitochondria collaborated program,suggesting a spatialized stemness acquisition by hijacking microenvironmental neural signals.Bin He Rui Gao Shasha Lv Ailin Chen Junxiu Huang Luoxuan Wang Yunxiu Feng Jiesi Feng Bing Liu Jie Lei Bing Deng Bin He Bai Cui Fei Peng Min Yan Zifeng Wang Eric W-F Lam Bilian Jin Zhiming Shao Yulong Li Jianwei Jiao Xi Wang Quentin Liu 2023Signal Transduction and Targeted Therapy2023,8,8:0
9Construction of Frame-Structured Flexible MXene Film Electrode to Achieve High Areal Capacitance Micro-Supercapacitor显示文摘Two-dimensional MXene-based film materials as flexible electrodes have been widely studied in wearable microsupercapacitors(MSCs).However,the existence of strong van derWaals interactions leads to serious self-stacking ofMXene layers,resulting in poor ionic dynamics and loss of active sites,which causes MXene film electrodes to exhibit low capacitance and poor rate performance in practical studies.To solve this,a frame-structured hybrid film(labeled as CN-MX hybrid film)is constructed by introducing intercalating agents(nanometer g-C_(3)N_(4))into MXene layers.In this unique hybrid film,the g-C_(3)N_(4)nanoparticles rationally occupy the interspace between MXene layers so as to alleviate layer stacking,thus effectively expanding the electrochemically active surface and promoting proton transfer.Synergistic pseudocapacitance inducted by g-C_(3)N_(4)surface groups,consequently,the CN-MX hybrid film electrode achieves an enhanced capacitive capability.In the three-electrode system,this frame-structured film electrode exhibits an ultra-high areal capacitance of 1932.8 mF cm^(−2).The assembled symmetry flexible MSC device based on CN-MX hybrid film can achieve an energy density of 2.28μWh cm^(−2)at 0.075 mW cm^(−2),as well as a superior cyclic stability with 90.4%retention after 700 cycles in alternating 90o bending and releasing states,revealing its potential in practical applications.Yesheng Wang Yongpeng Cui Dongqing Kong Xiaoning Wang Wenting Feng Pengyun Liu Tonghui Cai Xuejin Li Lianming Zhao Debin Kong Linjie Zhi Qingzhong Xue Zifeng Yan Wei Xing 2023Renewables2023,1,2:0
10Ru-based catalysts for efficient CO_(2) methanation:Synergistic catalysis between oxygen vacancies and basic sites显示文摘The fundamental insights of the reaction mechanism,especially the synergistic effect between oxygen vacancies and basic sites,are highly promising yet challenging for Ru-based catalysts during carbon dioxide(CO_(2))methanation.Herein,a series of Rubased catalysts were employed to study the mechanism of CO_(2) methanation.It is found that Ru/CeO_(2) catalyst exhibits a much higher CO_(2) conversion(86%)and CH4 selectivity(100%),as well as excellent stability of 30 h due to the existence of abundant oxygen vacancies and weak basic sites.Additionally,the in-situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and density functional theory(DFT)calculations reveal that the formate formation step dominated the hydrogenation route on Ru/CeO_(2) catalyst,and the b-HCOO^(*)could be the key intermediate due to b-HCOO^(*)is more easily hydrogenated to methane than m-HCOO^(*).The systematic study marks the significance of precise tailoring of the synergistic relationship between oxygen vacancies and basic sites for achieving the desired performance in CO_(2) methanation.Chunfen Wang Yonglian Lu Yu Zhang Hui Fu Shuzhuang Sun Feng Li Zhiyao Duan Zhen Liu Chunfei Wu Youhe Wang Hongman Sun Zifeng Yan 2023Nano Research2023,16,10:0
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