A standard electrolyzer test cell design for evaluating catalysts and cell components for anion exchange membrane water electrolysis
A standard electrolyzer test cell design for evaluating catalysts and cell components for anion exchange membrane water electrolysis
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DOI：
10.1016/j.electacta.2023.142030
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发表时间：
2023-02-16
影响因子：
6.6
通讯作者：
Symes, Mark D.
中科院分区：
文献类型：
--
作者：
Faqeeh, Abdulhai H.;Symes, Mark D.
阴离子交换膜水电解制氢技术是一种无二氧化碳排放的环境友好型制氢方法。该技术的发展受到氢气和氧气析出反应速率缓慢的阻碍，需要合理设计用于这些过程的电催化剂。尽管文献中报道了许多析氢和析氧电催化剂，但目前还没有标准的条件或电池设计，在这些条件或电池设计下可以对它们进行测试;因此，不同研究之间的测试条件和水电解器组件的差异阻碍了对用于阴离子交换膜水电解的新型电催化剂进行全面和连贯的比较。本文中，设计并优化了标准水电解器测试电池，使得该测试电池可以被采用作为用于评估用于阴离子交换膜水电解的新型电催化剂（以及实际上其他电池组件）的通用框架。使用商业Pt/C析氢反应电催化剂评价该水电解器的性能，发现优化的电池在2.0V的电池电压和60 ℃下分别使用Fumasep FAA-3-50和Sustainion（R）X37-50膜递送1.40 A cm-2和2.74 A cm-2的电流密度。提供了组装和操作水电解槽的指导，沿着电解槽及其部件的计算机辅助设计图，以允许其他人构建他们自己的相同的电池，用于对催化剂和用于阴离子交换膜水电解的其他电池部件进行基准测试。
Anion exchange membrane water electrolysis technology is an environmentally friendly method for hydrogen production without carbon dioxide emissions. The development of this technology is hindered by the sluggish rates of the hydrogen and oxygen evolution reactions, demanding the rational design of electrocatalysts for these processes. Although numerous hydrogen and oxygen evolution electrocatalysts are reported in the literature, there is currently no standard set of conditions or cell design under which they can be tested; variance in testing conditions and water electrolyzer components from one study to another therefore hampers a full and coherent comparison of novel electrocatalysts for anion exchange membrane water electrolysis. Herein, a standard water electrolyzer test cell was designed and optimized, such that this test cell can be adopted as a universal framework for evaluating novel electrocatalysts (and indeed other cell components) for anion exchange membrane water electrolysis. The performance of this water electrolyzer was evaluated using a commercial Pt/C hydrogen evolution reaction electrocatalyst, with an optimized cell found to deliver current densities of 1.40 A cm-2 and 2.74 A cm-2 at cell voltages of 2.0 V and at 60 degrees C using Fumasep FAA-3-50 and Sustainion (R) X37-50 membranes, respectively. Guidance for assembling and operating the water electrolyzer is provided, along with computeraided design drawings of the electrolyzer and its components to allow others to construct their own identical cells for benchmarking catalysts and other cell components for anion exchange membrane water electrolysis.