期刊
ACS APPLIED ENERGY MATERIALS
卷 2, 期 11, 页码 8045-8051出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b01552
关键词
artificial photosynthesis; water splitting; hydrogen peroxide; hydrogen; aluminum porphyrine; molecular catalyst; TiO2
资金
- JSPS KAKENHI [17H06439]
Artificial photosynthesis, which splits water into H-2/O-2 or reduces CO2 and N-2 by visible light, catalyzed by molecular catalysts (MCs) with/without being coupled with a solar cell should serve as one of the most promising renewable energy systems. There still, however, exist bottleneck subjects to be resolved in the MCs' approach, despite the recent progress. The key subject is the photon-flux-density problem of the rarefied sunlight radiation, which leads to a difficulty for the stepwise four-photon excitation of MCs to induce oxygen evolution from water. On the basis of our recent challenges on the two-electron oxidation of water by one-photon visible light excitation of an MC, where the MC does not need to wait for the next photon's arrival, here we report an artificial photosynthesis system that produces H-2 and H2O2 simultaneously on highly earth-abundant element-based aluminum-porphyrins by only one-photon excitation of visible light as the first exemplum to overcome the bottleneck.
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