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
陈曦 1叶丁丁 1朱恂 1杨扬 1兰巧 1陈蓉 1廖强1
作者信息
- 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;重庆大学能源与动力工程学院工程热物理研究所,重庆 400030
- 折叠
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0.3mol·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 mW·cm-2和23.5 mA·cm-2,且运行稳定性较好.
Abstract
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Key words
urea/sodium persulfate/paper-based microfluidic fuel cells/performance/stability引用本文复制引用
基金项目
国家自然科学基金创新研究群体项目(52021004)
重庆市自然科学基金面上项目(cstc2020jcyjmsxmX0827)
重庆英才计划(CQYC201905012)
重庆英才计划(cstc2021ycjhbgzxm0034)
中央高校基本科研业务经费项目(2020CDJ-LHZZ-046)
出版年
2024
NETL
NSTL
万方数据