Sun Seo Jeon, Wonjae Lee, Hyeseong Jeon, Hyunjoo Lee
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引用次数: 0
摘要
目前正在进行广泛的研究,以便通过以可再生能源为动力的水电解法生产绿色氢气,从而实现碳中和。质子交换膜水电解槽(PEMWE)和阴离子交换膜水电解槽(AEMWE)等聚合物膜水电解槽处于这项研究的前沿。开发高活性和耐用的电极催化剂对于这些电解槽的商业化非常重要。然而,大多数研究都是在半电池设置中进行的,这可能无法完全体现催化剂在膜电极组装(MEA)装置中的有效性。本综述探讨了为高性能 PEMWE 和 AEMWE MEA 系统开发的催化剂。本综述仅讨论了报告 MEA 性能的催化剂。在 PEMWE 中,通过最大限度地提高活性、采用基于金属氧化物的支撑物、将次要元素整合到 IrOx 晶格中或探索非 Ir 材料等策略,旨在最大限度地减少氧进化反应(OER)中 Ir 的使用。对于 AEMWE,重点是通过改善导电性和质量传输来提高镍铁合金基和钴基催化剂的性能。此外,还研究了用于 AEMWE 中氢气进化反应 (HER) 的铂基和镍基催化剂。此外,本综述还讨论了在 AEMWE 系统中纯水运行催化剂的独特考虑因素。
Developing Catalysts for Membrane Electrode Assemblies in High Performance Polymer Electrolyte Membrane Water Electrolyzers.
Extensive research is underway to achieve carbon neutrality through the production of green hydrogen via water electrolysis, powered by renewable energy. Polymer membrane water electrolyzers, such as proton exchange membrane water electrolyzer (PEMWE) and anion exchange membrane water electrolyzer (AEMWE), are at the forefront of this research. Developing highly active and durable electrode catalysts is crucial for commercializing these electrolyzers. However, most research is conducted in half-cell setups, which may not fully represent the catalysts' effectiveness in membrane-electrode-assembly (MEA) devices. This review explores the catalysts developed for high-performance PEMWE and AEMWE MEA systems. Only the catalysts reporting on the MEA performance were discussed in this review. In PEMWE, strategies aim to minimize Ir use for the oxygen evolution reaction (OER) by maximizing activity, employing metal oxide-based supports, integrating secondary elements into IrOx lattices, or exploring non-Ir materials. For AEMWE, the emphasis is on enhancing the performance of NiFe-based and Co-based catalysts by improving electrical conductivity and mass transport. Pt-based and Ni-based catalysts for the hydrogen evolution reaction (HER) in AEMWE are also examined. Additionally, this review discusses the unique considerations for catalysts operating in pure water within AEMWE systems.
期刊介绍:
ChemSusChem
Impact Factor (2016): 7.226
Scope:
Interdisciplinary journal
Focuses on research at the interface of chemistry and sustainability
Features the best research on sustainability and energy
Areas Covered:
Chemistry
Materials Science
Chemical Engineering
Biotechnology