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Ink‐Assisted Synthetic Strategy for Stable and Advanced Composite Electrocatalysts with Single Fe Sites
Small ( IF 13.3 ) Pub Date : 2020-11-30 , DOI: 10.1002/smll.202006113
Zhengyuan Zhang 1 , Jinhui Hao 1 , Yahui Lu 1 , Yuqi Xu 1 , Longhua Li 1 , Weidong Shi 1
Affiliation  

The oxygen evolution reaction is critical to the efficiency of many energy technologies that store renewable electricity in chemical form. However, the rational design of high‐performance and stable catalysts to drive this reaction remains a formidable challenge. Here, a facile ink‐assisted strategy to construct a series of stable and advanced composite electrocatalysts with single Fe sites for permitting seriously improved performance characteristics is reported. As revealed by a suit of characterization techniques and theoretical methods, the improved electrocatalytic performance and stability can be attributed to the unique coordination states of Fe in the form of distorted FeO4C and the interfacial effect in the composite system that optimize and stabilize single Fe sites in changing to better configurations for intermediates adsorption. The findings provide a novel strategy to in‐depth understanding of practical guidelines for the electrocatalyst design for energy conversion devices.

中文翻译:

具有单个Fe位点的稳定和高级复合电催化剂的油墨辅助合成策略

放氧反应对于许多以化学形式存储可再生电力的能源技术的效率至关重要。但是,合理设计高性能和稳定的催化剂来驱动该反应仍然是一个巨大的挑战。在此报道了一种简便的墨水辅助策略,该策略可构建一系列具有单个Fe位点的稳定和先进的复合电催化剂,以允许大幅改善性能特征。所揭示的表征技术和理论方法西装,改进的电性能和稳定性可以归因于Fe的独特协调各国的扭曲铁形式 Ò 4 C和复合系统中的界面效应可优化并稳定单个Fe位点,从而改变为更好的中间体吸附构型。这些发现提供了一种新颖的策略,可用于深入了解能量转换装置电催化剂设计的实用指南。
更新日期:2020-12-28
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