Zhao Likuan, Qi Yuhang, Song Lizhu, Ning Shangbo, Ouyang Shuxin, Xu Hua, Ye Jinhua
TJU-NIMS International Collaboration Laboratory, School of Materials Science and Engineering, Tianjin University, No. 92, Weijin Road, Tianjin, 300072, P. R. China.
College of Chemistry Central China Normal University, No.152, Luoyu Road, Wuhan, 430079, P. R. China.
Angew Chem Int Ed Engl. 2019 Jun 3;58(23):7708-7712. doi: 10.1002/anie.201902324. Epub 2019 Apr 29.
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 /Al O delivers excellent catalytic activity (122 μmol g s of H evolution and >95 % of CO conversion) which is even more efficient than noble-metal-based catalysts (Au/Al O and Pt/Al O ). 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 /Al O can be attributed to the combined photothermocatalysis and photocatalysis.
煤气化制氢为将煤炭资源转化为化学能提供了一种清洁途径，但该能源技术中煤气化及热催化水煤气变换（WGS）反应的关键步骤仍面临高能源成本问题。我们在此提议采用太阳能驱动的WGS工艺而非传统热催化，旨在大幅降低能源消耗。在光照下，CuO/Al₂O₃展现出优异的催化活性（析氢量为122 μmol g⁻¹ s⁻¹且CO转化率>95%），甚至比基于贵金属的催化剂（Au/Al₂O₃和Pt/Al₂O₃）更高效。重要的是，这种太阳能驱动的WGS工艺无需电力/热能，却能实现1.1%的光到能量存储。CuO/Al₂O₃上太阳能驱动的WGS反应的诱人性能可归因于光热催化和光催化的结合。
