Solar‐Driven Water–Gas Shift Reaction over CuO x /Al2O3 with 1.1 % of Light‐to‐Energy Storage

作者：Likuan Zhao; Yuhang Qi; Lizhu Song; Shangbo Ning; Prof. Dr. Shuxin Ouyang; Dr. Hua Xu; Prof. Jinhua Ye

来源：Angewandte Chemie, 2019, 131(23): 7790-7794.

DOI：10.1002/ange.201902324

• Photokatalyse
• Photothermische Katalyse
• Sauerstoff-Leerstellen
• Wassergas-Shift-Reaktion

Hydrogen production from coal gasification provides a cleaning approach to convert coal resource into chemical energy, but the key procedures of coal gasification and thermal catalytic water–gas shift (WGS) reaction in this energy technology still suffer from high energy cost. We herein propose adopting a solar–driven WGS process instead of traditional thermal catalysis, with the aim of greatly decreasing the energy consumption. Under light irradiation, the CuO\u003csub\u003e x \u003c/sub\u003e/Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e delivers excellent catalytic activity (122 μmol g\u003csub\u003ecat\u003c/sub\u003e?1 s?1 of H\u003csub\u003e2\u003c/sub\u003e evolution and \u003e95 % of CO conversion) which is even more efficient than noble‐metal‐based catalysts (Au/Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e and Pt/Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e). Importantly, this solar‐driven WGS process costs no electric/thermal power but attains 1.1 % of light‐to‐energy storage. The attractive performance of the solar‐driven WGS reaction over CuO\u003csub\u003e x \u003c/sub\u003e/Al\u003csub\u003e2\u003c/sub\u003eO\u003csub\u003e3\u003c/sub\u003e can be attributed to the combined photothermocatalysis and photocatalysis.

• 出版日期2019
• 单位华中师范大学; 天津大学