1. Cu/TiO2 nanoparticles modified nitrogen-doped graphene as a highly efficient catalyst for the selective electroreduction of CO2 to different alcohols.
- Author
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Yuan, Jing, Yang, Man-Ping, Hu, Qiao-Li, Li, Shi-Ming, Wang, Huan, and Lu, Jia-Xing
- Subjects
TITANIUM dioxide nanoparticles ,CARBON dioxide reduction ,COPPER electrodes ,ELECTROCATALYSIS ,ELECTROLYTIC reduction ,ALCOHOLS (Chemical class) ,GRAPHENE ,NITROGEN - Abstract
The construction of an efficient and robust catalyst for the electrochemical reduction of carbon dioxide into energy-rich products has recently received considerable attention. Herein, a Cu/TiO 2 nanoparticles modified nitrogen-doped graphene (Cu/TiO 2 /NG) carbon material is fabricated for the selective reduction of CO 2 into different alcohols. We found the Cu/TiO 2 /NG nanocomposite across a range of potentials for the electroreduction of CO 2 exhibits dual catalytic ability, possessing an outstanding ability to produce methanol (reaching a maximum faradaic efficiency of 19.5% at a potential of −0.20 V vs. the reversible hydrogen electrode (RHE)) and a capability to produce ethanol (with a high faradaic efficiency up to 43.6% at −0.75 V vs. RHE). In addition, the Cu/TiO 2 /NG composite shows remarkable stability and reusability at both reductive potentials in the electrochemical process. The designed Cu/TiO 2 /NG composite may offer a new simple method based on earth-abundant metals to construct robust electrocatalysts for CO 2 reduction. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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