| Autor: |
Niu, K, Xu, Y, Wang, H, Ye, R, Xin, HL, Lin, F, Tian, C, Lum, Y, Bustillo, KC, Doeff, MM, Koper, MTM, Ager, J, Xu, R, Zheng, H |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Zdroj: |
Niu, K; Xu, Y; Wang, H; Ye, R; Xin, HL; Lin, F; et al.(2017). A spongy nickel-organic CO2reduction photocatalyst for nearly 100% selective CO production. Science Advances, 3(7). doi: 10.1126/sciadv.1700921. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/84194890 |
| DOI: |
10.1126/sciadv.1700921. |
| Popis: |
Copyright © 2017 The Authors, some rights reserved. Solar-driven photocatalytic conversion of CO2into fuels has attracted a lot of interest; however, developing active catalysts that can selectively convert CO2to fuels with desirable reaction products remains a grand challenge. For instance, complete suppression of the competing H2evolution during photocatalytic CO2-to-CO conversion has not been achieved before. We design and synthesize a spongy nickel-organic heterogeneous photocatalyst via a photochemical route. The catalyst has a crystalline network architecture with a high concentration of defects. It is highly active in converting CO2to CO, with a production rate of ~1.6 × 104mmol hour−1g−1. No measurable H2is generated during the reaction, leading to nearly 100% selective CO production over H2evolution. When the spongy Ni-organic catalyst is enriched with Rh or Ag nanocrystals, the controlled photocatalytic CO2reduction reactions generate formic acid and acetic acid. Achieving such a spongy nickel-organic photocatalyst is a critical step toward practical production of high-value multicarbon fuels using solar energy. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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