1.
Chem Sci
; 12(6): 2108-2113, 2020 Dec 23.
Artigo
em Inglês
| MEDLINE
| ID: mdl-34163974
RESUMO
Efficient activation of CO2 at low temperature was achieved by reverse water-gas shift via chemical looping (RWGS-CL) by virtue of fast oxygen ion migration in a Cu-In structured oxide, even at lower temperatures. Results show that a novel Cu-In2O3 structured oxide can show a remarkably higher CO2 splitting rate than ever reported. Various analyses revealed that RWGS-CL on Cu-In2O3 is derived from redox between Cu-In2O3 and Cu-In alloy. Key factors for high CO2 splitting rate were fast migration of oxide ions in the alloy and the preferential oxidation of the interface of alloy-In2O3 in the bulk of the particles. The findings reported herein can open up new avenues to achieve effective CO2 conversion at lower temperatures.