Catalytic reduction of low-concentration CO2 with water by Pt/Co@NC |
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| Authors: | Qianqian Wang Wenzhong Wang Ling Zhang Yang Su Kefu Wang Huixia Wu |
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| Affiliation: | 1. The Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of the Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors, Shanghai Normal University, Shanghai 200234, China;2. State Key Laboratory of High Performance Ceramics and Super fine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
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| Abstract: | The reduction of low-concentration carbon dioxide with water to organic fuels is still a huge challenge. In this study, we successfully designed the partially oxidized cobalt nanoparticles coated by the nitrogen-doped carbon layer (Co@NC) of 2–8?nm via a facile method and then interspersed with different amount of Pt nanoparticles. The Co@NC decorated with 1?wt% Pt exhibits the best ability for CO2 reduction to CH4 and a CH4 production rate of 14.4?μmol·g?1·h?1 is achieved. It is worth noting that the system is carried out under low-concentration CO2 (400?ppm) circumstance without any sacrificial agent, which could be meaningful to the design of catalysts for atmospheric CO2 reduction. |
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| Keywords: | Carbon dioxide catalytic reduction Pt/Co@NC No sacrificial agent |
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