文献类型：期刊文献

英文题名：Advanced gas-emission anode design for microfluidic fuel cell eliminating bubble accumulation

作者：Zhang, Hao[1];Xuan, Jin[2];Leung, Dennis Y. C.[3];Wang, Huizhi[2];Xu, Hong[4];Zhang, Li[4]

机构：[1]Jiangxi Univ Sci & Technol, Sch Mech & Elect Engn, Ganzhou, Peoples R China;[2]Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh, Midlothian, Scotland;[3]Univ Hong Kong, Dept Mech Engn, Pok Fo Lam, Hong Kong, Peoples R China;[4]East China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Chem Engn, Shanghai, Peoples R China

年份：2017

卷号：27

期号：10

外文期刊名：JOURNAL OF MICROMECHANICS AND MICROENGINEERING

收录：;EI(收录号：20173904217407);WOS:【SCI-EXPANDED(收录号:WOS:000411441800004)】；

基金：This work is supported by the Research Project of Jiangxi Department of Education, China (GJJ150639), the National Natural Science Foundation of China (51406057), the Research Fund for the Doctoral Program of Higher Education of China (20130074120019) and Hong Kong-Scotland Collaborative Research Partnership (H15009).

语种：英文

外文关键词：gas-emission anode; microfluidic fuel cell; bubble accumulation; counter-flow

摘要：A microfluidic fuel cell is a low cost, easily fabricated energy device and is considered a promising energy supplier for portable electronics. However, the currently developed microfluidic fuel cells that are fed with hydrocarbon fuels are confronted with a bubble problem especially when operating at high current density conditions. In this work, a gasemission anode is presented to eliminate the gas accumulation at the anode. This gas-emission anode is verified as a valid design for discharging gaseous products, which is especially beneficial for stable operation of microfluidic fuel cells. The electrochemical performance of a counter-flow microfluidic fuel cell equipped with a gas-emission anode was measured. The results indicate that the specific design of the gas-emission anode is essential for reducing the oxygen reduction reaction parasitic effect at the anode. Fuel utilization of 76.4% was achieved at a flow rate of 0.35 mu l min(-1). Current-voltage curves of single electrodes were measured and the parasitic effect at the anode was identified as the main performance limiting factor in the presented anode design.