Development of a double-side ordered membrane electrode assembly based on titanium nitride nanoarrays  

作　　者：Lingfeng Xuan Deqing Mei Caiying Zhou Wenze Mao Yancheng Wang 

机构地区：[1]State Key Lab of Fluid Power and Mechatronic Systems,School of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China [2]Zhejiang Province Key Laboratory of Advanced Manufacturing Technology,School of Mechanical Engineering,Zhejiang University,Hangzhou 310027,China

出　　处：《Industrial Chemistry & Materials》2024年第4期622-633,共12页工业化学与材料（英文）

基　　金：The authors acknowledge the financial support from the National Natural Science Foundation of China(U1809220);Key Research and Development Program of Zhejiang Province(2022C01113);Key Research and Fundamental Research Funds for the Central Universities(2022FZZX01-06).

摘　　要：The membrane electrode assembly(MEA)plays a crucial role in the functionality of proton exchange membrane fuel cells(PEMFCs).The channels present within the catalyst layer of MEAs exhibit a disordered configuration,which consequently give rise to low efficiency in mass transportation.In order to enhance the mass transfer performance and the corrosion resistance of the catalyst layer,this paper developed a double-side ordered MEA based on TiN nanorod arrays.We synthesized TiN nanorod arrays on the ITO surface by a seed-assisted hydrothermal reaction and nitriding treatment,and coated the catalyst uniformly on the TiN support by ultrasonic spraying.Then the double-side ordered MEA was fabricated by transfer printing,and achieved a peak power of 678.30 mW cm^(-2) with a cathode platinum loading of 0.2 mg cm^(-2) at 80℃ and anode saturated humidity.After 200 hours of accelerated stress test(AST)at 90℃ and 30/30%relative humidity,the peak performance only dropped by 4.8%.These results provide substantial evidence for the effectiveness of our developed double-side ordered MEA which can mitigate catalyst polarization corrosion.Thus,this study reveals the immense potential of the TiN nanorod array-based double-side ordered MEA in advancing the development of efficient and stable MEAs.

关 键 词：PEMFC Preparation of MEA Ordered MEA TiN nanorod array Catalyst carrier 

分 类 号：TG1[金属学及工艺—金属学]