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A Direct Liquid Fuel Cell with High Power Density Using Reduced Phosphotungstic Acid as Redox Fuel

A Direct Liquid Fuel Cell with High Power Density Using Reduced Phosphotungstic Acid as Redox Fuel

作     者:Yiyang Liu Ting Feng Shanfu Lu Haining Wang Yan Xiang Yiyang Liu;Ting Feng;Shanfu Lu;Haining Wang;Yan Xiang

作者机构:Beijing Key Laboratory of Bio-inspired Energy Materials and DevicesSchool of Space and EnvironmentBeihang UniversityBeijing 100191China School of Energy and Power EngineeringBeihang UniversityBeijing 100191China 

出 版 物:《Energy & Environmental Materials》 (能源与环境材料(英文))

年 卷 期:2022年第5卷第1期

页      面:278-284页

核心收录:

学科分类:0808[工学-电气工程] 08[工学] 

基  金:financialy supported by the National Key R&D Program of China(No.2018YFB1502303) the National Natural Science Foundation of China(No.21722601,U19A2017) China Postdoctoral Science Foundation(No.2019M660389) 

主  题:direct liquid fuel cell heteropoly acid phosphotungstic acid power density renewable fuel 

摘      要:Direct liquid fuel cells(DLFCs)are proposed to address the problems of high cost and complex storage and transportation of hydrogen in traditional hydrogen-oxygen proton exchange membrane fuel ***,present fuels of organic small molecules used in DLFCs are restricted to problems of sluggish electrochemical kinetics and easily poisoning of precious metal ***,we demonstrate reduced phosphotungstic acid as a liquid fuel for DLFCs based on its advantages of high chemical and electrochemical stability,high electrochemical activity on common carbon material electrodes,and low permeability through proton exchange *** application of phosphotungstic acid fuel effectively solves the problems of high cost of anode catalysts and serious fuel permeation loss in traditional DLFCs.A phosphotungstic acid fuel cell achieves a peak power density of466 mW cm^(-2)at a cell voltage of 0.42 V and good stability at current densities in the range from 20 to 200 mA cm^(-2).

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