尿素/过硫酸钠纸基微流体燃料电池产电特性  

Electricity Generation Characteristics of Urea/Sodium Persulfate Paper-based Microfluidic Fuel Cells

作　　者：陈曦[1,2] 叶丁丁[1,2] 朱恂[1,2] 杨扬[1,2] 兰巧 陈蓉[1,2] 廖强[1,2] CHEN Xi;YE Dingding;ZHU Xun;YANG Yang;LAN Qiao;CHEN Rong;LIAO Qiang(Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Ministry of Education,Chongqing University,Chongqing 400030,China;Institute of Engineering Thermophysics,School of Energy and Powering Engineering,Chongqing University,Chongqing 400030,China)

机构地区：[1]重庆大学低品位能源利用技术及系统教育部重点实验室,重庆400030 [2]重庆大学能源与动力工程学院工程热物理研究所,重庆400030

出　　处：《工程热物理学报》2024年第2期525-534,共10页Journal of Engineering Thermophysics

基　　金：国家自然科学基金创新研究群体项目(No.52021004);重庆市自然科学基金面上项目(No.cstc2020jcyj-msxmX0827);重庆英才计划(No.CQYC201905012,No.cstc2021ycjh-bgzxm0034);中央高校基本科研业务经费项目(No.2020CDJ-LHZZ-046)。

摘　　要：本文提出一种尿素/过硫酸钠完全被动式纸基微流体燃料电池,通过方波电流法将非贵金属镍催化剂电沉积到碳纸上制备阳极,阴极无需催化剂负载,电池成本大大降低。在不同结构及燃料、氧化剂、电解液浓度下测试了电池性能,结果表明,双层纸结构能大幅提高反应物流速,强化反应物传质,提高性能;电池在电极间距为6 mm、燃料浓度为0.3 mol·L^(-1)、氧化剂和电解液浓度均为1.0 mol·L^(-1)时,峰值功率密度和极限电流密度分别为5.9 m W·cm^(-2)和23.5 m A·cm^(-2),且运行稳定性较好。In this paper,a completely passive paper-based microfluidic fuel cell using urea/sodium persulfate is proposed.Non-noble metal nickel catalysts are electrodeposited on carbon paper by square-wave current method to prepare the anode.The cathode requires no catalyst and the fuel cell cost is greatly reduced.The cell performance is tested under different structures and concen-trations of fuel,oxidant and electrolyte.The results show that the double-layer paper structure can greatly improve the flow rate of reactants,strengthen the mass transfer of reactants,and improve the performance.When the electrode spacing is 6 mm,the fuel concentration is 0.3 mol·L^(−1),and the oxidant and electrolyte concentrations are 1.0 mol·L^(−1),the peak power density and limit current density of the fuel cell are 5.9 mW·cm^(−2) and 23.5 mA·cm^(−2),respectively.Moreover,good operation stability is also achieved.

关 键 词：尿素/过硫酸钠 纸基微流体燃料电池 性能 稳定性 

分 类 号：TM911.4[电气工程—电力电子与电力传动]