Efficient Electrocatalytic Reduction of CO2 by Nitrogen-Doped Nanoporous Carbon/Carbon Nanotube Membranes: A Step Towards the Electrochemical CO2 Refinery

Hong Wang, Jia Jia, Pengfei Song, Qiang Wang, Debao Li, Shixiong Min, Chenxi Qian, Lu Wang, Young Feng Li, Chun Ma, Tom Wu, Jiayin Yuan, Markus Antonietti, Geoffrey A Ozin
Angewandte Chemie 2017 June 26, 56 (27): 7847-7852
Herein we introduce a straightforward, low cost, scalable, and technologically relevant method to manufacture an all-carbon, electroactive, nitrogen-doped nanoporous-carbon/carbon-nanotube composite membrane, dubbed "HNCM/CNT". The membrane is demonstrated to function as a binder-free, high-performance gas diffusion electrode for the electrocatalytic reduction of CO2 to formate. The Faradaic efficiency (FE) for the production of formate is 81 %. Furthermore, the robust structural and electrochemical properties of the membrane endow it with excellent long-term stability.

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