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Progress in Natural Science:Materials International 2023年第5期33卷 668-673页

作者： Jinmei Li Lining Zhao Peng Liu State Key Laboratory of Applied Organic Chemistry Lanzhou University College of Chemistry and Chemical Engineering

The electrochemical performance of the carbon cloth(CC)-based flexible electrodes is determined by the kind,micro-structure, and morphology of the deposited pseudocapacitive materials. In the present work, the coral-/urchin-like polyaniline(PANI) was designed to boost the electrochemical property of CC, by integrating the microstructure advantages of coral-like and nanowire arrays, via the facile electrochemical polymerization of aniline on the functionalized carbon cloth(FCC) in salty media. The corresponding electrode delivered a high specific capacitance of 3376 m F cm-2at 1 m A cm-2and 151 F g-1at 1 A g-1, with an ultrahigh boosting in specific capacitance of 246 % and superior cycling stability of 149.8 % after 10,000 cycles, in comparison with the reported PANI/CC ones via electrodeposition. This work provided a new idea for the construction of conductive polymers with unique nano-architectures on CC for high-performance electrodes for flexible supercapacitors.

关键词： carbon cloth Coral-/urchin-like polyaniline Electrodeposition Flexible solid-state supercapacitors Salty media

Controlled Growth of NiMoO_(4) Nano-rods on carbon cloth:A Novel Electrode for the Hydrogen Evolution Reaction in Alkaline Media and Simulated Sea Water

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China Petroleum Processing & Petrochemical Technology 2022年第2期24卷 91-100页

作者： Jiang Bolong Shi Shunjie Cui Yanyan Jiang Nan Innovation Institute for Sustainable Maritime Architecture Research and Technology Qingdao University of TechnologyQingdao Shandong 266000 Institute of Environmental and Municipal Engineering Qingdao University of TechnologyQingdaoShandong 266000

A series of NiMoO_(4)-nano rod/carbon cloth composite electrodes with different loadings(x)of NiMoO_(4)-NRs was synthesized with a view to implementing an efficient hydrogen evolution reaction(HER).The NiMoO_(4) nano-rods(NRs)were prepared by growing them directly on carbon cloth(CC)via a simple hydrothermal reaction coupled with an annealing treatment.The resulting NiMoO_(4)-NR/CC-x composites served directly as electrodes for electrolysis of an alkaline medium and a simulated sea water.The results indicated that among the NiMoO_(4)-NR/CC-x composites,the NiMoO_(4)-NR/CC-10 composite possessed the highest HER activity with an overpotential of 244.8 mV at 10 mA/cm^(2),a Tafel slope of 95 mV/dec,the fastest charge transfer rate(R_(ct)<1Ω)and good stability in alkaline media.Even in simulated seawater,the NiMoO_(4)-NR/CC-10 composite showed good stability.The outstanding HER activity and stability may originate from the strong interaction between Ni and Mo in the NiMoO_(4) NRs as well as the efficient charge transfer process and the rate of the HER due to the synergistic effect involving the CC and NiMoO_(4) NRs.

关键词： Hydrogen evolution reaction catalyst NiMoO_(4)nano-rods carbon cloth alkaline electrolyte simulated seawater

Oxygen functionalization-assisted anionic exchange toward unique construction of flower-like transition metal chalcogenide embedded carbon fabric for ultra-long life flexible energy storage and conversion

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carbon Energy 2024年第1期6卷 72-93页

作者： Roshan M.Bhattarai Kisan Chhetri Nghia Le Debendra Acharya Shirjana Saud Mai Cao Hoang Phuong Lan Nguyen Sang Jae Kim Young Sun Mok Department of Chemical Engineering Jeju National UniversityJejuRepublic of Korea Department of Nano Convergence Engineering Jeonbuk National UniversityJeonjuRepublic of Korea Regional Leading Research Center(RLRC)for Nanocarbon-based Energy Materials and Application Technology Jeonbuk National UniversityJeonjuRepublic of Korea Department of Chemistry Mississippi State UniversityStarkvilleMississippiUSA Nanomaterials and System Laboratory Department of Mechatronics EngineeringJeju National UniversityJejuRepublic of Korea

The metal-organic framework(MOF)derived Ni–Co–C–N composite alloys(NiCCZ)were“embedded”inside the carbon cloth(CC)strands as opposed to the popular idea of growing them upward to realize ultrastable energy storage and conversion application.The NiCCZ was then oxygen functionalized,facilitating the next step of stoichiometric sulfur anion diffusion during hydrothermal sulfurization,generating a flower-like metal hydroxysulfide structure(NiCCZOS)with strong partial implantation inside CC.Thus obtained NiCCZOS shows an excellent capacity when tested as a supercapacitor electrode in a three-electrode configuration.Moreover,when paired with the biomass-derived nitrogen-rich activated carbon,the asymmetric supercapacitor device shows almost 100%capacity retention even after 45,000 charge–discharge cycles with remarkable energy density(59.4 Wh kg^(-1)/263.8μWh cm^(–2))owing to a uniquely designed cathode.Furthermore,the same electrode performed as an excellent bifunctional water-splitting electrocatalyst with an overpotential of 271 mV for oxygen evolution reaction(OER)and 168.4 mV for hydrogen evolution reaction(HER)at 10 mA cm−2 current density along with 30 h of unhinged chronopotentiometric stability performance for both HER and OER.Hence,a unique metal chalcogenide composite electrode/substrate configuration has been proposed as a highly stable electrode material for flexible energy storage and conversion applications.

关键词： carbon cloth energy conversion energy storage flexible metal embedding ultra-stable

Fabrication of highly effective electrodes for iron chromium redox flow battery

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Nano Research 2024年第5期17卷 3988-3996页

作者： Yingchun Niu Chao Guo Yinping Liu Guangfu Wu Tianhang Zhou Fangang Qu Ziji Yang Ali Heydari Chunming Xu Quan Xu State Key Laboratory of Heavy Oil Processing China University of Petroleum(Beijing)Beijing 102249China

Iron-chromium redox flow batteries(ICRFBs)have emerged as promising energy storage devices due to their safety,environmental protection,and reliable performance.The carbon cloth(CC),often used in ICRFBs as the electrode,provides a suitable platform for electrochemical processes owing to its high surface area and interconnected porous structure.However,the CC electrodes have issues,such as,insufficient electron transfer performance,which limits their industrial application.Here,we employed silicic acid etching to carve dense nano-porous structures on the surface of CC electrodes based on the favorable design of ICRFBs and the fundamental principles of electrode polarization losses.As a result,we developed a multifunctional carbon cloth electrode with abundant vacancies,notably enhancing the performance of the battery.The fabricated electrode showcased a wealth of defect sites and superior electronic transport properties,offering an extensive and effective reaction area for rapidly flowing electrolytes.With an electrode compression ratio of 40%and the highest current density in ICRFBs so far(140 mA·cm^(-2)),the battery achieved the average energy efficiency of 81.3%,11.24%enhancement over the previously published work.Furthermore,throughout 100 charge-discharge cycles,the average energy efficiency degradation was negligible(~0.04%),which has the potential to become the most promising candidate for large-scale and long-term electrochemical energy storage applications.

关键词： iron chromium redox flow battery electron carbon cloth defect site density functional theory(DFT)calculation

Nanostructured porous polyaniline(PANI)coated carbon cloth(CC)as electrodes for flexible supercapacitor device

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Journal of Materials Science & Technology 2021年第29期88卷 168-182页

作者： Dinesh J.Ahirrao Ajay Kumar Pal Vikalp Singh Neetu Jha Department of Physics Institute of Chemical TechnologyMatunga(E)Mumbai400019India Department of Physics Ramniranjan Jhunjhunwala CollegeGhatkopar(W)Mumbai 400086India

Nanostructured porous polyaniline(PANI)has been synthesized and coated simultaneously on a highly flexible and conductive carbon cloth(CC)substrate using a simple in-situ chemical oxidative polymerization technique.PANI coated CC(PANI-CC)based flexible electrodes were further used for the fabrication of flexible supercapacitor devices.For the comparison purpose,pure PANI has also been synthesized and tested for its electrochemical performance.The energy storage capacity of PANI and PANI–CC composite was investigated using electrochemical techniques like CV,GCD,and EIS in a potential range from 0 to 0.8 V in 1 M H_(2)SO_(4)electrolyte.PANI-CC flexible electrodes exhibited the highest specific capacitance of 691 F/g;whereas,pure PANI could only achieve 575 F/g of specific capacitance at 1 A/g.Composite also exhibited outstanding cyclic stability by recollecting 94%of its initial capacitance after 2000 GCD cycles.For actual implementation,a flexible supercapacitor device has been fabricated using stainless steel sheets and PANI-CC flexile electrodes.The energy storage performance of the PANI-CC flexible supercapacitor device was tested at several bending angles,which resulted in 72%of capacitance retention at a maximum bending angle of 140°compared to the capacitance obtained at an angle 0°(flat state).PANI-CC exhibited improved electrochemical performance than pure PANI due to the synergistic effect between PANI and CC.Here,CC helped in enhancing the conductivity and stability;whereas,PANI boosted the capacitance owing to its excellent porosity and fast pseudocapacitive charge storage response.

关键词： Polyaniline carbon cloth Flexible supercapacitor Flexible electrode Composite

A facile strategy of in-situ anchoring of Co_(3)O_(4) on N doped carbon cloth for an ultrahigh electrochemical performance

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Nano Research 2021年第7期14卷 2410-2417页

作者： Junlin Lu Jien Li Jing Wan Xiangyu Han Peiyuan Ji Shuang Luo Mingxin Gu Dapeng Wei Chenguo Hu Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials Department of Applied PhysicsChongqing UniversityChongqing 400044China Key Laboratory of Multi-Scale Manufacturing Technology Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714China

Enhancement of supercapacitors(SCs)with high-energy density and high-power density is still a great challenge.In this paper,a facile strategy for in situ anchoring of Co_(3)O_(4) particles on N doped carbon cloth(pCoNCC)is reported.Due to the interaction of the doped N and Co_(3)O_(4),the electrochemical performance improves significantly,reaching 1,940.13 mF·cm^(−2) at 1 mA·cm^(−2) and energy density of 172.46μWh·cm^(−2) at the power density of 400μW·cm^(−2),much larger than that without N doping electrode of 28.5 mF·cm^(−2).An aqueous symmetric supercapacitor(ASSC)assembled by two pCoNCC electrodes achieves a maximum energy density of 447.42μWh·cm^(−2) and a highest power density of 8,000μW·cm^(−2).Utilizing such a high-energy storage ASSC,a digital watch and a temperature-humidity detector are powered for nearly 1 and 2 h,respectively.Moreover,the ASSC displays a superb electrochemical stability of 87.7%retention after 10,000 cycles at 40 mA·cm^(−2).This work would provide a new sight to enhance active materials performance and be beneficial for the future energy storage and supply systems.

关键词： Co_(3)O_(4) N doping carbon cloth supercapacitor

Z-scheme CdS/WO_(3)on a carbon cloth enabling effective hydrogen evolution

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Frontiers in Energy 2021年第3期15卷 678-686页

作者： Zehong XU Qiaohong ZHU Xinguo XI Mingyang XING Jinlong ZHANG Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China School of Chemistry and Chemical Engineering Yancheng Institute of TechnologyYancheng 224051China

Photocatalytic water splitting for hydrogen(H2)generation is a potential strategy to solve the problem of energy crisis and environmental deterioration.However,powder-like photocatalysts are difficult to recycle,and the agglomeration of particles would affect the photocatalytic activity.Herein,a direct Z-scheme CdS/WO_(3)composite photocatalyst was fabricated based on carbon cloth through a two-step process.With the support of carbon cloth,photocatalysts tend to grow uniformly for further applications.The experimental results showed that the H2 yield of adding one piece of CdS/WO_(3)composite material was 17.28μmol/h,which was 5.5 times as compared to that of pure CdS-loaded carbon cloth material.A cycle experiment was conducted to verify the stability of the asprepared material and the result demonstrated that the H2 generation performance of CdS/WO_(3)decreased slightly after 3 cycles.This work provides new ideas for the development of recyclable photocatalysts and has a positive significance for practical applications.

关键词： photocatalysis CdS/WO_(3) carbon cloth Z-scheme hydrogen evolution

Enhanced electrocatalytic activity of carbon cloth by synergetic effect of plasma and acid treatment

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Plasma Science and Technology 2021年第2期23卷 57-63页

作者：梅婷婷高明刘丹妮王裕黄逸凡 Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen 518055People's Republic of China University of Chinese Academy of Sciences Beijing 100049People's Republic of China

Commercial carbon cloth(CC)is an ideal electrocatalysis material to produce oxygen evolution reaction(OER)due to its high conductive and 3D flexible structure,but the lacked active sites limit its application.For improving its OER performance,the present study proposed an effective method combining plasma and acid treatment to introduce oxygen-containing functional groups and produce more active sites on its surface.Compared to the pristine CC,the plasma and acid treated carbon cloth(PN-CC)delivers a reduced overpotential by 34.6%to achieve current density of 10 mA cm^(−2).The Tafel slope declines from 97.5 mV dec^(–1)(pristine CC)to 55.9 mV dec–1(PN-CC),showing an increased OER kinetic.Additionally,PN-CC electrocatalyst shows outstanding stability after 5000 cycles or 25000 s.The combination of plasma and acid treatment shows a significant potential in surface modification for electrocatalysts.

关键词： carbon cloth electrocatalytic activity plasma treatment acid oxidation

Modified carbon cloth as positive electrode with high electrochemical performance for vanadium redox flow batteries

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Journal of Energy Chemistry 2016年第4期25卷 720-725页

作者： Zhangxing He Zhongsheng Chen Wei Meng Yingqiao Jiang Gang Cheng Lei Dai Ling Wang Jiangxi Engineering Research Center of Process and Equipment for New Energy East China Institute of Technology School of Chemical Engineering North China University of Science and Technology

carbon cloth modified by hydrothermal treatment in ammonia water is developed as the positive electrode with high electrochemical performance for vanadium redox flow batteries. The SEM shows that the treatment has no obvious influence on the morphology of carbon cloth. XPS measurements indicate that the nitrogenous functional groups can be introduced on the surface of carbon cloth successfully. The electrochemical performance of V(IV)/V(V) redox couple on the prepared electrode is evaluated with cyclic voltammetry and linear sweep voltammetry measurements. The N-doped carbon cloth exhibits outstanding electrochemical activity and reversibility toward V(IV)/V(V) redox couple. The rate constant of V(IV)/V(V) redox reaction on carbon cloth can increase to 2.27 x 10(-4) cm/s from 1.47 x 10(-4) cm/s after nitrogen doping. The cell using N-doped carbon cloth as positive electrode has larger discharge capacity and higher energy efficiency compared with the cell using pristine carbon cloth. The average energy efficiency of the cell using N-doped carbon cloth for 50 cycles at 30 mA/cm(2) is 87.8%, 4.3% larger than that of the cell using pristine carbon cloth. It indicates that the N-doped carbon cloth has a promise application prospect in vanadium redox flow batteries. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.

关键词： Vanadium redox flow batteries carbon cloth Electrode Kinetics Electrochemical performance

Construction of nickel cobalt sulfide nanosheet arrays on carbon cloth for performance-enhanced supercapacitor

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Journal of Materials Science & Technology 2020年第12期47卷 113-121页

作者： Tao Liu Jiahao Liu Liuyang Zhang Bei Cheng Jiaguo Yu State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyLuoshi Road 122Wuhan430070China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450001China

Materials featured with self-supported three-dimensional network,hierarchical pores and rich electrochemical active sites are considered as promising electrodes for pseudocapacitors.Herein,a novel strategy for the growth of nickel-cobalt bisulfide(Ni Co S)nanosheets arrays on carbon cloth(CC)as supercapacitor electrodes is reported,involving deposition of two-dimensional metal-organic framework(MOF)precursors on the CC skeletons,conversion of MOF into nickel-cobalt layered double-hydroxide by ion exchange process and formation of Ni Co S by a sulfidation treatment.The Ni Co S nanosheets with rough surface and porous structures are uniformly anchored on the CC skeletons.The unique architecture endows the composite(Ni Co S/CC)with abundant accessible active sites.Besides,robust electrical/mechanical joint between the nanosheets and the substrates is attained,leading to the improved electrochemical performance.Moreover,an asymmetric supercapacitor device is constructed by using Ni Co S/CC and activated carbon as a positive electrode and a negative electrode,respectively.The optimized device exhibits a high specific capacitance,large energy density and long cycle life.The Ni Co S/CC electrode with intriguing electrochemical properties and mechanical flexibility holds great prospect for next-generation wearable devices.

关键词： Metal-organic framework Nickel sulfide Cobalt sulfide carbon cloth Supercapacitor