Affiliation:
1. Department of Energy Storage Science and Engineering School of Metallurgical and Ecological Engineering University of Science and Technology Beijing 30th Xueyuan Road, Haidian District 100083 Beijing China
2. State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences 1 North 2nd Street, Zhongguancun, Haidian District 100190 Beijing China
Abstract
AbstractPhotocatalytic CO2 reduction holds great promise to solve energy shortage and global warming. Nb2O5 has demonstrated superiority in CO2 activation and selectivity regulation, but suffers from poor light absorption ability and fast carrier recombination. To tackle these problems, we designed and synthesized ultrathin Nb2O5 nanosheets which were decorated with tiny NiP nanoparticles as cocatalyst. In this way, light absorption range broadened, carrier migration distance reduced, charge transfer resistance decreased, and surface reaction kinetics promoted. Consequently, the as‐prepared NiP/Nb2O5 showed notably enhanced activity (148.7 μmol ⋅ g−1) and selectivity (82.1 %) towards CO, as well as remarkable stability. This work paves the way for cheap and earth abundant alternatives as cocatalysts and deepens the understanding of their functions in CO2 photoreduction.
Funder
Natural Science Foundation of Beijing Municipality
National Natural Science Foundation of China
Subject
Materials Chemistry,Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Biomaterials