文献类型：期刊文献

英文题名：An ultrasonic atomization spray strategy for constructing hydrophobic and hydrophilic synergistic surfaces as gas diffusion layers for proton exchange membrane fuel cells

作者：Guo, Feng[1];Yang, Xiaoling[2];Jiang, Haibo[1];Zhu, Yihua[1];Li, Chunzhong[1,3]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Natl Demonstrat Ctr Expt Mat Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：451

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20200508100923);WOS:【SCI-EXPANDED(收录号:WOS:000518874300059)】；

基金：This work was supported by the National Natural Science Foundation of China (21676093, 21838003, 21776092, 21808061, 91834301), the Social Development Program of Shanghai (17DZ1200900), the Shanghai Scientific and Technological Innovation Project (18JC1410500), the Innovation Program of Shanghai Municipal Education Commission, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：water management; Gas diffusion layer; Hydrophobic and hydrophilic synergistic surfaces; Proton exchange membrane fuel cell

摘要：An effective strategy to construct a gas diffusion layer with hydrophobic and hydrophilic synergistic surfaces using a one-step ultrasonic atomizing spray low surface hydrophilic reagent (aerosol (R) ot-75 surfactant: polyacrylic acid: deionized water = 1:1:8) is reported. Higher peak power density is obtained with respect to conventionally prepared gas diffusion layers. The Energy Dispersive Spectrometer (EDS) mapping of the cross section and surface of the gas diffusion layer proves that the hydrophobic and hydrophilic synergistic surfaces is existed in the whole gas diffusion layer. By comparing the contact angle, water breakthrough pressure and pore size distribution of the two kind of gas diffusion layers, the main advantage of this gas diffusion layer with hydrophobic - hydrophilic synergistic surfaces is provide water transfer pathway so that improve the cell performance.