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:
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).