操作条件对低温PEM电解水单池CV测试的影响及机理分析
Influence of operating conditions on CV test of low temperature PEM water electrolysis single cells and mechanism analysis
阚宏伟 1吴孝彬 1何良 1张新建 1邢官飞1
作者信息
- 1. 科威尔技术股份有限公司,安徽 合肥 688551
- 折叠
摘要
质子交换膜电解水制氢(PEMWE)作为一种高效的绿氢制备技术,因可加速绿色能源结构的转型而备受关注,但当前PEMWE大规模应用仍然受限于成本和寿命.基于基础原理的研究,是解决上述问题的唯一途径.循环伏安(CV)测试是PEMWE中最常用的原位表征技术,基于CV测试结果,研究者可以探究膜电极的基础电化学参数,如电化学活性面积、催化剂活性等.CV测试过程中一般要求对供应气体进行加湿,但PEMWE测试设备一般不具备加湿功能,研究者测试过程中经常受限于实验条件.基于此,本工作系统性探索了PEMWE在CV测试过程中的操作条件,为后续研究开辟了更为简单的测试方案.
Abstract
Proton exchange membrane water electrolysis(PEMWE),recognized as an efficient and eco-friendly hydrogen production technology,has garnered significant attention for its potential to expedite the transition toward a sustainable energy framework.Nonetheless,the widespread adoption of PEMWE is hindered by factors such as cost and longevity.Addressing these challenges necessitates foundational research,particularly in the realm of in situ electrochemical characterization.Cyclic voltammetry(CV)testing emerges as a pivotal technique in this context,offering insights into critical electrochemical parameters including the electrochemical active surface area(ECSA)and catalyst efficiency,among others.The requirement for humidified gas during CV testing presents a notable obstacle for PEMWE applications.This study systematically investigates the conditions requisite for effective PEMWE CV testing,aiming to establish a more feasible methodology for conducting these assessments.
关键词
电解水/低温电解池/循环伏安测试/原位分析/通气条件Key words
water electrolysis/low-temperature water electrolysis single cell/cyclic voltammetry/in-situ electroanalytical/aeration conditions引用本文复制引用
基金项目
国家重点研发计划(2022YFB4002300)
出版年
2024
国家科技期刊平台
NSTL
万方数据