电解
电解质
堆栈(抽象数据类型)
阳极
耐久性
离子交换
膜
电解槽
氧化物
化学工程
聚合物电解质膜电解
化学
无机化学
材料科学
离子
电极
计算机科学
工程类
冶金
复合材料
有机化学
生物化学
物理化学
程序设计语言
作者
Myeong Je Jang,Seok Hwan Yang,Moon Gyu Park,Jaehoon Jeong,Min Suc,Sang-Hun Shin,Kyu Hwan Lee,Zhengyu Bai,Zhongwei Chen,Jang Yong Lee,Sung Mook Choi
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2022-07-13
卷期号:7 (8): 2576-2583
被引量:62
标识
DOI:10.1021/acsenergylett.2c01049
摘要
A low-cost anion exchange membrane water electrolysis (AEMWE) stack with good performance and durability is demonstrated in this study. The configuration of an AEMWE single cell, composed of an etched copper–cobalt oxide anode (eCCO) by a simple chemical etching and a polycarbazole-based anion exchange membrane (QPC-TMA) was optimized through various single-cell studies. The large-sized three-cell AEMWE stack (total active area of 190.9 cm2) with eCCO and QPC-TMA demonstrated durability with a degradation rate of 8.5 mV kh–1 as well as an energy conversion efficiency of 75% for 2000 h in 0.1 M KOH at 45 °C. Moreover, the production rate of H2 is reported 40.4 L h–1, thereby being equivalent to electricity produced by H2 of 44 kWh kg–1. To the best of our knowledge, this AEMWE stack has the highest performance and durability among the reported AEMWE stacks using non-platinum-group metal anodes and noncommercial membranes.
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