Li Weimo, Wang Ce, Lu Xiaofeng
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Nano Lett. 2024 Sep 25;24(38):11779-11792. doi: 10.1021/acs.nanolett.4c03643. Epub 2024 Sep 13.
Electrochemical acidic oxygen evolution reaction (OER) is an important part for water electrolysis utilizing a proton exchange membrane (PEM) apparatus for industrial H production. RuO has garnered considerable attention as a potential acidic OER electrocatalyst. However, the overoxidation of Ru active sites under high potential conditions is usually harmful for activity and stability, thereby posing a challenge for large-scale commercialization, which needs effective strategies to circumvent the leaching of Ru and further activate Ru sites. Herein, a Mini-Review is presented to summarize the recent developments regarding the activation and stabilization of the Ru active sites and lattice oxygen through the modulation of the d-band center, coordination environment, bridged heteroatoms, and vacancy engineering, as well as structural protection strategies and reaction pathway optimization to promote the acidic OER activity and stability of RuO-based electrocatalysts. This Mini-Review offers a profound understanding of the design of RuO-based electrocatalysts with greatly enhanced acidic OER performances.
电化学酸性析氧反应（OER）是利用质子交换膜（PEM）装置进行工业制氢的水电解的重要组成部分。RuO作为一种潜在的酸性OER电催化剂已引起了广泛关注。然而，在高电位条件下Ru活性位点的过度氧化通常对活性和稳定性有害，从而给大规模商业化带来挑战，这需要有效的策略来避免Ru的浸出并进一步活化Ru位点。在此，本文进行了一篇小型综述，总结了通过调节d带中心、配位环境、桥连杂原子和空位工程以及结构保护策略和反应途径优化来活化和稳定Ru活性位点及晶格氧，以提高基于RuO的电催化剂的酸性OER活性和稳定性的最新进展。这篇小型综述有助于深入理解具有大大增强的酸性OER性能的基于RuO的电催化剂的设计。
