Electrochemistry-accelerated water-gas shift reaction on IrN4-RhN4 dual sites catalysts for efficient hydrogen production
學年 114
學期 1
出版（發表）日期 2025-10-27
作品名稱 Electrochemistry-accelerated water-gas shift reaction on IrN4-RhN4 dual sites catalysts for efficient hydrogen production
作品名稱（其他語言）
著者 Qie Liu; Liyuan Gong; Jingjing Wang; Luyao Ma; Yandong Wu; Yu-Cheng Huang; Ta Thi Thuy Nga; Yabin Xu; Zuyao Jiang; Shiqian Du; Hongjing Zhong; Yanjing Wang; Miaoyu Li; Chung-Li Dong; Guobin Wen; Li Tao; Shuangyin Wang
單位
出版者
著錄名稱、卷期、頁數 Angewandte Chemie International Edition 64(44), e202517292
摘要 The water–gas shift reaction (WGSR) is crucial to the hydrogen economy, which is hampered by the harsh conditions and complicated purification process. In this work, the spatially separated efficient CO conversion and high-purity H2 production are realized by electrochemistry-accelerated water–gas shift reaction (WGSR) with IrN4–RhN4 dual sites single atom catalysts (IrRh–NC) in high-temperature polymer–electrolyte–membrane electrolyzer. In this reaction, the Ir single atoms in the catalysts can rapidly dissociate H2O at an extremely low potential to supply abundant *OH, which ensures the *OH groups bind to the spontaneously adsorbed *CO on neighboring Rh sites to further accelerate CO conversion. What's more, the elevated temperatures (120–300 °C) maintain water in the gaseous state during the reaction, thus greatly facilitating mass transfer of the reactants CO and H2O within the reactor. Employing IrRh–NC as the anodic catalyst, the electrolyzer achieves superior CO catalytic performance (424 mA cm−2 at 0.4 V) and high purity (99.9%) H2 production (3.2 ml min−1), surpassing the performance of particle catalysts. This work illuminates the tantalizing possibility for sustainable hydrogen economic development.
關鍵字 Electrocatalysis; Hydrogen production; Water–gas shift reaction (WGSR)
語言 en
ISSN 1433-7851; 1521-3773
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
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