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 

机构地区：[1]Electrochemical Reaction and Technology Laboratory(ERTL),School of Earth Sciences and Environmental Engineering,Gwangju Institute of Science and Technology(GIST),Cwangju 61005,Republic of Korea [2]Ertl Center for Electrochemistry and Catalysis,Gwangju Institute of Science and Technology(GIST),Gwangju 61005,Republic of Korea [3]Department of Green Chemical Engineering,Sangmyung University,Cheonan,Chungnam 31066,Republic of Korea [4]Plant Engineering Center,Institute for Advanced Engineering,Yongin 17180,Republic of Korea

出　　处：《Journal of Energy Chemistry》2020年第12期175-181,共7页能源化学（英文版）

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)。

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).

关 键 词：Fuel cell HYDRAZINE Alkaline media Membrane-electrode assembly 

分 类 号：TM911.4[电气工程—电力电子与电力传动]