Optimistic performance of carbon-free hydrazine fuel cells based on controlled electrode structure and water management

作     者：Hongsun Hwang Sujik Hong Do-Hyeong Kim Moon-Sung Kang Jin-Soo Park Sunghyun Uhm Jaeyoung Lee Hongsun Hwang;Sujik Hong;Do-Hyeong Kim;Moon-Sung Kang;Jin-Soo Park;Sunghyun Uhm;Jaeyoung Lee

作者机构：Electrochemical Reaction and Technology Laboratory(ERTL)School of Earth Sciences and Environmental EngineeringGwangju Institute of Science and Technology(GIST)Cwangju 61005Republic of Korea Ertl Center for Electrochemistry and CatalysisGwangju Institute of Science and Technology(GIST)Gwangju 61005Republic of Korea Department of Green Chemical EngineeringSangmyung UniversityCheonanChungnam 31066Republic of Korea Plant Engineering CenterInstitute for Advanced EngineeringYongin 17180Republic of Korea 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第12期

页      面：175-181页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：supported by Technology Development Program to Solve Climate Changes through the National Research Foundation of Korea (NRF) funded by the Ministry of Science  ICT (2018M1A2A2063861)。 

主　　题：Fuel cell Hydrazine Alkaline media Membrane-electrode assembly 

摘      要：In this study, we first attempted to discover the optimal configuration of membrane-electrode assemblies(MEAs) used to achieve a high performance of direct hydrazine fuel cells(DHFCs). We have investigated the effect of water management and the electrode thickness on the performance of DHFCs, depending on the hydrophobicity of the gas diffusion layers in the cathode and the catalyst loading in the anode with the carbon-supported Ni, synthesized by a polyol process. With the optimal water management and electrode thickness, the MEA constructed using the as-prepared Ni/C anode catalyst containing the metallic and low oxidative state and ultra-low Pt loading cathode reduced the ohmic resistance and mass transfer limitation in the current-voltage curves observed for the alkaline DHFC, achieving an impressive power performance over 500 mW cm^(–2).