Probing CO2 Reduction Pathways for Copper Catalysis Using an Ionic Liquid as a Chemical Trapping Agent

Angewandte Chemie
Gui-Rong ZhangBastian J M Etzold

Abstract

The key to fully leveraging the potential of the electrochemical CO2 reduction reaction (CO2RR) to achieve a sustainable solar-power-based economy is the development of high-performance electrocatalysts. The development process relies heavily on trial and error methods due to poor mechanistic understanding of the reaction. Demonstrated here is that ionic liquids (ILs) can be employed as a chemical trapping agent to probe CO2RR mechanistic pathways. This method is implemented by introducing a small amount of an IL ([BMIm][NTf2 ]) to a copper foam catalyst, on which a wide range of CO2RR products, including formate, CO, alcohols, and hydrocarbons, can be produced. The IL can selectively suppress the formation of ethylene, ethanol and n-propanol while having little impact on others. Thus, reaction networks leading to various products can be disentangled. The results shed new light on the mechanistic understanding of the CO2RR, and provide guidelines for modulating the CO2RR properties. Chemical trapping using an IL adds to the toolbox to deduce the mechanistic understanding of electrocatalysis and could be applied to other reactions as well.

References

Jun 26, 2009·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Elliot Ennis, Scott T Handy
Oct 19, 2010·Nature Materials·J SnyderJ Erlebacher
Nov 11, 2011·Physical Chemistry Chemical Physics : PCCP·Wei TangIb Chorkendorff
Jun 8, 2012·Journal of the American Chemical Society·Klaas Jan P SchoutenMarc T M Koper
Dec 13, 2012·Chemical Society Reviews·Cyrille CostentinJean-Michel Savéant
Nov 8, 2013·Chemical Reviews·Zhigang LeiBiaohua Chen
Feb 21, 2014·Chemical Society Reviews·Suojiang ZhangJianji Wang
May 24, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Liyuan SunJoan F Brennecke
Jan 27, 2015·ACS Applied Materials & Interfaces·Gui-Rong ZhangBastian J M Etzold
Aug 13, 2015·The Journal of Physical Chemistry Letters·Joseph H MontoyaJens K Nørskov
Jan 2, 2016·The Journal of Physical Chemistry Letters·Ruud KortleverMarc T M Koper
Apr 10, 2016·Angewandte Chemie·Anna LoiudiceRaffaella Buonsanti
Jan 11, 2017·The Journal of Physical Chemistry Letters·Ki Dong YangKi Tae Nam
Jun 14, 2017·Proceedings of the National Academy of Sciences of the United States of America·Hai XiaoYuanyue Liu
Sep 20, 2017·Proceedings of the National Academy of Sciences of the United States of America·Dohyung KimPeidong Yang
Jan 23, 2018·Chemical Society Reviews·Peter StrasserTim Moeller
Feb 14, 2018·ACS Applied Materials & Interfaces·Lily MandalT Venkatesan
Sep 19, 2018·Proceedings of the National Academy of Sciences of the United States of America·Irina V ChernyshovaSathish Ponnurangam
Feb 3, 2019·The Journal of Chemical Physics·Shan JiangHolger Dau
May 24, 2019·Chemical Reviews·Stephanie NitopiIb Chorkendorff
Aug 24, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Recep KasAngel Cuesta

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Citations

Apr 16, 2021·Journal of the American Chemical Society·Weiwei GuoBuxing Han
Jun 16, 2021·Journal of the American Chemical Society·Ipek HarmanliMartin Oschatz

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Methods Mentioned

BETA
scanning electron microscopy

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