无机材料学报2023，Vol.38Issue(11)：1316-1322,中插7-中插10,11.DOI:10.15541/jim20230127
高导电性生物质碳布的制备及其燃料电池气体扩散层性能
Biomass-derived High-conductivity Carbon Cloth:Preparation and Application as Gas Diffusion Layers in Fuel Cells
摘要
Abstract
The gas diffusion layer(GDL)is a critical component of proton exchange membrane fuel cells(PEMFCs)and accounts for 40%-50%of the fuel cell membrane's cost.Developing a low-cost and high-performance GDL is imperative to advance the commercialization of PEMFCs.In this study,we generated a flexible carbon cloth with high electrical conductivity and porosity from cellulose cloth at a low temperature(1500℃).The carbon cloth is composed of micron-sized carbon fibers with a porosity of up to 76.93%.Through catalytic graphitization of iron-based compounds,massive carbon nanotube clusters were formed in situ on the surface of carbon fibers,which effectively enhanced the electrical conductivity of the carbon cloth.The in-plane resistance was as low as 34 mΩ·cm while the through-plane resistance was 2.8 mΩ·cm under a pressure of 2 MPa,meeting the performance standard of commercial carbon cloth.Furthermore,the PEMFC with the prepared carbon cloth as GDLs exhibits a power density of 0.4 W·cm-2 at current density of 0.7 A·cm-2,exceeding the device with commercial carbon cloth(0.34 W·cm-2 at 0.7 A·cm-2).This study demonstrates that the prepared biomass-derived carbon cloth with low-cost and high-performance holds great potential for advanced GDLs for PEMFCs.关键词
生物质/碳布/碳纳米管/气体扩散层/燃料电池Key words
biomass/carbon cloth/carbon nanotube/gas diffusion layer/fuel cell分类
化学化工引用本文复制引用
田煜彬,田超凡,李森,赵永鑫,邢涛,李智,陈萧如,向帅蓉,代鹏程..高导电性生物质碳布的制备及其燃料电池气体扩散层性能[J].无机材料学报,2023,38(11):1316-1322,中插7-中插10,11.基金项目
国家自然科学基金(51702365) （51702365）
山东省自然科学基金(ZR2022MB133)National Natural Science Foundation of China(51702365) （ZR2022MB133）
Natural Science Foundation of Shandong Province(ZR2022MB133) （ZR2022MB133）
