School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia.
Nanoscale. 2019 Nov 7;11(41):18995-19011. doi: 10.1039/c9nr05802h. Epub 2019 Aug 12.
Driven by the quest for future energy solution, faceted metal nanoparticles are being pursued as the next generation electrocatalysts for renewable energy applications. Thanks to recent advancement in solution phase synthesis, different low- and high-index facets on metal nanocrystals become accessible and are tested for specific electrocatalytic reactions. This minireview summarises the key approaches to prepare nanocrystals containing the most catalytically active platinum group metals (Pt, Pd, Ru, Ir and Rh) exposed with low- and high-index facets using solution phase synthesis. Electrocatalytic studies related to the different facets are highlighted to emphasise the importance of exposing facets for catalysing these reactions, namely oxygen reduction reaction (ORR), hydrogen oxidation reaction (HOR), alcohol oxidation including methanol (MOR) and ethanol oxidation reactions (EOR), formic acid oxidation reaction (FAOR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The future outlook discusses the challenges and opportunities for making electrocatalysts that are even more active and stable.
受未来能源解决方案的推动，多面金属纳米粒子作为下一代可再生能源应用的电催化剂备受关注。由于在溶液相合成方面的最新进展，金属纳米晶体上的不同低指数和高指数晶面变得易于获得，并针对特定的电催化反应进行了测试。本综述总结了使用溶液相合成制备具有最具催化活性的铂族金属（Pt、Pd、Ru、Ir 和 Rh）暴露于低指数和高指数晶面的纳米晶体的关键方法。强调了与不同晶面相关的电催化研究，以强调暴露晶面对催化这些反应的重要性，即氧还原反应（ORR）、析氢反应（HER）、醇氧化反应（包括甲醇 MOR 和乙醇氧化反应 EOR）、甲酸氧化反应（FAOR）、析氧反应（OER）。未来展望讨论了使电催化剂更具活性和稳定性所面临的挑战和机遇。
