Cheng Wenjing, Sun Limei, He Xiaoyan, Tian Lin
University and College Key Lab of Natural Product Chemistry and Application in Xinjiang, School of Chemistry and Environmental Science, Yili Normal University, Yining 835000, China.
School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, PR China.
Dalton Trans. 2022 May 24;51(20):7763-7774. doi: 10.1039/d2dt00841f.
As the center of fuel cells, electrocatalysts play a crucial role in determining the conversion efficiency from chemical energy to electrical energy. Therefore, the development of advanced electrocatalysts with both high activity and stability is significant but challenging. Active site, mass transport, and charge transfer are three central factors influencing the catalytic performance of electrocatalysts. Endowed with rich available surface active sites, facilitated electron transfer and mass diffusion channels, and highly active components, porous noble metal nanomaterials are widely considered as promising electrocatalysts toward fuel cell-related reactions. The past decade has witnessed great achievements in the design and fabrication of advanced porous noble metal nanocatalysts in the field of electrocatalytic fuel oxidation reaction (FOR) and oxygen reduction reaction (ORR). Herein, the recent research advances regarding porous noble metal nanocatalysts for fuel cell-related reactions are reviewed. In the discussions, the inherent structural features of porous noble metal nanostructures for electrocatalytic reactions, advanced synthetic strategies for the fabrication of porous noble metal nanostructures, and the structure-performance relationships are also provided.
作为燃料电池的核心，电催化剂在决定从化学能到电能的转换效率方面起着至关重要的作用。因此，开发兼具高活性和稳定性的先进电催化剂意义重大但具有挑战性。活性位点、传质和电荷转移是影响电催化剂催化性能的三个核心因素。多孔贵金属纳米材料具有丰富的可用表面活性位点、便利的电子转移和质量扩散通道以及高活性组分，被广泛认为是用于燃料电池相关反应的有前景的电催化剂。在过去十年中，在电催化燃料氧化反应（FOR）和氧还原反应（ORR）领域，先进多孔贵金属纳米催化剂的设计与制备取得了巨大成就。在此，综述了关于用于燃料电池相关反应的多孔贵金属纳米催化剂的最新研究进展。在讨论中，还介绍了用于电催化反应的多孔贵金属纳米结构的固有结构特征、多孔贵金属纳米结构制备的先进合成策略以及结构 - 性能关系。
