Determining the importance of the electrode support and fabrication method during the initial screening process of an active catalyst for the oxygen evolution reaction
Determining the importance of the electrode support and fabrication method during the initial screening process of an active catalyst for the oxygen evolution reaction
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DOI：
10.1039/c8ta02908c
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发表时间：
2018-08-07
影响因子：
11.9
通讯作者：
Mills, Andrew
中科院分区：
文献类型：
--
作者：
Browne, Michelle P.;Mills, Andrew
这项工作旨在说明在筛选新的OER催化剂时选择最佳衬底和“粉末到电极”制造技术的重要性。RuO2粉末是一种成熟的水氧化催化剂，用于制备文献中常用的不同类型的电极，包括：滴铸电极、医生刀片电极和压电极。基于铂、钛、镍和玻碳等材料的各种支撑基板被使用。此外，还研究了各种衬底几何形状，包括：圆盘，箔和泡沫。结果表明，RuO2粉末的OER活性随电极制造和衬底组合的不同而显著变化。这些发现表明，在用新的粉末材料研究OER时，筛选不同的衬底和制造方法的重要性。
This work aims to illustrate the importance of selecting the best substrate and 'powder to electrodes' fabrication technique when screening new OER catalysts. A well-established water oxidation catalyst, RuO2 powder is used to fabricate different types of commonly used electrodes found in literature including: dropcast electrodes, doctor-blade electrodes and pressed electrodes. A variety of support substrates are used based on materials such as platinum, titanium, nickel and glassy carbon. Additionally, a variety of substrate geometries are also investigated, including: discs, foils and foams. The results show that the OER activity of the RuO2 powder is significantly varied depending on the electrode fabrication and substrate combination utilised. These findings show the importance of screening different substrates and fabrication methods when investigating the OER with new powder materials.