Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO2

Martijn J. W. Blom; Wim P. M. van Swaaij; Guido Mul; Sascha R. A. Kersten

doi:10.1039/D0SE00731E

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Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO₂†

Martijn J. W. Blom,

^ab Wim P. M. van Swaaij,^a Guido Mul

^b and Sascha R. A. Kersten

*^a

Author affiliations

* Corresponding authors

^a A Sustainable Process Technology Group, Faculty of Science and Technology, University of Twente, P. O. Box 217, 7500 AE Enschede, The Netherlands
E-mail: s.r.a.kersten@utwente.nl

^b PhotoCatalytic Synthesis Group, MESA+ Institute for Nanotechnology, University of Twente, P. O. Box 217, 7500 AE Enschede, The Netherlands

Abstract

Electrochemical reduction of CO₂ on a Pd/C cathode produces formate and hydrogen at low overpotentials. We report on an innovative, effective approach to prevent hydrogen formation. By applying 4 bar partial hydrogen pressure, hydrogen evolution can be fully avoided at −0.05 V vs. RHE and 1 bar partial CO₂ pressure.

This article is part of the themed collection: Recent Open Access Articles

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Article information

DOI: https://doi.org/10.1039/D0SE00731E
Article type: Communication
Submitted: 12 Mei 2020
Accepted: 29 Jun 2020
First published: 30 Jun 2020
This article is Open Access

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Sustainable Energy Fuels, 2020,4, 4459-4463

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Increased hydrogen partial pressure suppresses and reverses hydrogen evolution during Pd catalysed electrolysis of CO₂

M. J. W. Blom, W. P. M. van Swaaij, G. Mul and S. R. A. Kersten, Sustainable Energy Fuels, 2020, 4, 4459 DOI: 10.1039/D0SE00731E

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