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| 1 | Nanostructured N-doped carbon materials derived from expandable biomass with superior electrocatalytic performance towards V^(2+)/V^(3+) redox reaction for vanadium redox flow battery显示文摘Vanadium redox flow battery(VRFB)is one of the most promising large-scale energy storage systems,which ranges from kilowatt to megawatt.Nevertheless,poor electrochemical activity of electrode for two redox couples still restricts the extensive applications of VRFB.Compared with V^(2+)/V^(3+)redox reaction,V^(2+)/V^(3+)reaction plays a more significant role in voltage loss of VRFB owing to slow heterogeneous electron transfer rate.Herein,N-doped carbon materials derived from scaphium scaphigerum have been developed as negative electrocatalyst by hydrothermal carbonization and high-temperature nitridation treatments.The undoped carbon material hardly has electrocatalytic ability for V^(2+)/V^(3+)reaction.Based on this,N-doped carbon materials with urea as nitrogen source exhibit excellent electrocatalytic properties.And the material nitrided at 850°C(SSC/N-850)exhibits the best performance among those from700 to 1000℃.SSC/N-850 can accelerate the electrode process including V^(2+)/V^(3+)reaction and mass transfer of active ions due to the large reaction place,more active sites,and good hydrophilicity.The effect of catalyst on comprehensive performance of cell was evaluated.SSC/N-850 can improve the charge-discharge performance greatly.Utilization of SSC/N-850 can lessen the electrochemical polarization of cell,further resulting in increased discharge capacity and energy efficiency.Discharge capacity and energy efficiency increase by 81.5%and 9.8%by using SSC/N-850 as negative catalyst at 150 m A cm^(-2),respectively.Our study reveals that the developed biomass-derived carbon materials are the low-cost and efficient negative electrocatalyst for VRFB system. | Yingqiao Jiang Mengchen Du Gang Cheng Peng Gao Tingting Dong Jing Zhou Xiaojian Feng Zhangxing He Yuehua Li Lei Dai Wei Meng Ling Wang | 2021 | Journal of Energy Chemistry2021,30,8: | 3 |
| 2 | Inhibition by nitric oxide of ethylene biosynthesis and lipoxygenase activity in peach fruit during storage显示文摘 | Shuhua Zhu Mengchen Liu Jie Zhou | 2006 | Postharvest Biology and Technology2006,42,: | 1 |
| 3 | 人源大麻素受体CB1晶体结构显示文摘人源大麻素受体(human Cannabinoid Receptor1,CB1)是G蛋白偶联受体(Gproteincoupledreceptor,GPCR)ClassA家族的一员.其主要分布在中怄神经系统,尤其是大脑皮层、基底核、海马和小脑区域,是人类大脑中表达量最高的GPCR之一. | Tian Hua Kiran Vemuri Mengchen Pu Lu Qu Gye Won Han Yiran Wu Suwen Zhao Wenqing Shui Shanshan Li Anisha Korde Robert B.Laprairie Edward L.Stahl Jo-Hao Ho Nikolai Zvonok Han Zhou Irina Kufareva Beili Wu Qiang Zhao Michael A.Hanson Laura M.Bohn Alexandros Makriyannis Raymond C.Stevens 刘志杰 | 2017 | 科学新闻2017,19,4: | 0 |
| 4 | Cobalt phthalocyanine-based conjugated polymer as efficient and exclusive electrocatalyst for CO_(2) reduction to ethanol显示文摘Electrocatalytic conversion of carbon dioxide to high value-added chemicals is a promising method for solving the energy crisis and global warming.Electrochemical active metal-containing conjugated polymers have been widely studied for heterogeneous carbon dioxide reduction.In the present contribution,we designed and synthesized a stable cobalt phthalocyanine-based conjugated polymer,named CoPPc-TFPPy-CP,and also explored its electro-catalytic application in carbon dioxide reduction to liquid products in an aqueous solution.In the catalyst,cobalt phthalocyanine acts as building blocks connected with 1,3,6,8-tetrakis(4-formyl phenyl)pyrenes via imine-linkages,leading to mesoporous formation polymers with the pore size centered at 4.1nm.And the central co-balt atoms shifted to a higher oxidation state after condensation.With these chemical and structural natures,the catalyst displayed a remarkable electrocatalytic CO_(2) reduction performance with an ethanol Faradaic efficiency of 43.25%at-1.0V vs RHE.While at the same time,the electrochemical reduction process catalyzed by cobalt phthalocyanine produced only carbon monoxide and hydrogen.To the best of our knowledge,CoPPc-TFPPy-CP is the first example among organic polymers and metal-organic frameworks that produces ethanol from CO_(2) with a remarkable selectivity. | Dong Jiang Ran Bu Wei Xia Yichen Hu Mengchen Zhou Enqing Gao Toru Asahi Yusuke Yamauchi Jing Tang | 2023 | Materials Reports(Energy)2023,3,1: | 0 |
| 5 | Fabrication of patterned transparent conductive glass via laser metal transfer for efficient electrical heating and antibacteria显示文摘Vapor deposition and three-dimensional(3D)printing technology are considered to be conventional methods to achieve patterned metal film preparation through the assistance of masks and high temperature.Therefore,there are still some challenges in fabricating metal films in template-free and normal temperature environment.In this work,we report a flexible and rapid laser metal transfer(LMT)technique for fabricating the various metal films(Cu,Ni,Sn,Al,Fe,and Ag)with different patterns without templates on arbitrary substrates(glass,polyimide(PI)films,and aluminum nitride(AlN)ceramic).Especially,the obtained transparent conductive glass displays high transmittance(more than 90%)and adjustable resistances(≈5Ω).According to the Joule effect,the interface resistance between Cu particles and copper oxide coating produces the high temperature approximately 280℃ at 2 V in a short time(≈60 s)and remains stable at 120℃ over 12 h.At last,the multifunctional glass with Cu patterns also shows excellent bactericidal activity(≈95%).This work demonstrates that laser metal transfer is an exceeding effective means of fabricating the micro/nano structures with potential applications in functional devices. | Xiaoyan Liu Ting Zhang Mengchen Xu Yang Li Haiqing Wang Yuke Chen Xuzihan Zhang Zenan Wang Xiaoyan Li Weijia Zhou Hong Liu | 2024 | Nano Research2024,17,3: | 0 |
| 6 | KCNMA1 promotes obesity-related hypertension:Integrated analysis based on genome-wide association studies显示文摘Obesity is caused by an excessive accumulation of fat,which poses a risk to human health.In China,the prevalence rates of overweight and obesity in adults were estimated to be 30.1%and 11.9%,respectively,ranking the first in the world.Obesity is a major risk factor for hypertension. | Yingchao Zhou Yuanyuan Zhao Lingfeng Zha Mengchen Zhou Mengru Wang Xiang Cheng Zhengrong Huang Min Liu Tie Ke Xin Tu | 2023 | Genes & Diseases2023,10,1: | 0 |