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arXiv · 1905.01466

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
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Abstract

The search for earth abundant, efficient and stable electrocatalysts that can enable the chemical reduction of CO2 to value-added chemicals and fuels at an industrially relevant scale, is a high priority for the development of a global network of renewable energy conversion and storage systems that can meaningfully impact greenhouse gas induced climate change. Here 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 electrode for the electrocatalytic reduction of CO2 to formate. The Faradaic efficiency 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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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. 2019-05-04. Efficient Electrocatalytic Reduction of CO2 by Nitrogen-Doped Nanoporous Carbon-Carbon Nanotube Membranes - A Step Towards the Electrochemical CO2 Refinery. https://arxiv.org/abs/1905.01466

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