Cu Nanowire Networks with Well-Defined Geometrical Parameters for Catalytic Electrochemical CO2 Reduction

Ulrich N, Schäfer M, Römer M, Straub SD, Zhang S, Brötz J, Trautmann C, Scheu C, Etzold BJ, Toimil-Molares ME (2023)

Publication Type: Journal article

Publication year: 2023

Journal

ACS Applied Nano Materials American Chemical Society

Book Volume: 6

Pages Range: 4190-4200

Journal Issue: 6

DOI: 10.1021/acsanm.2c05232

Abstract

Three-dimensional, highly interconnected copper nanowire networks are designed and fabricated by electrodeposition in etched ion track polymer templates with interconnected nanochannels and subsequently applied as a catalyst for the electrochemical CO2 reduction toward hydrocarbons and alcohols in an aqueous electrolyte. The specific surface area expressed by the nanowire networks can be adjusted by tailoring the wire length, wire diameter, and nanowire number density to values between 70 cm2 and 300 cm2 per cm2 geometrical sample area. The conversion efficiency and selectivity of CO2 reduction toward liquid- and gas-phase products are studied as a function of the applied potential. Before and after the CO2 reduction reaction, the nanowire networks are characterized by scanning and transmission electron microscopy and by X-ray diffraction, evidencing their stability during CO2 reduction in a potential region between −0.5 V and −0.93 V versus RHE.

Authors with CRIS profile

Bastian Etzold

Involved external institutions

GSI Helmholtzzentrum für Schwerionenforschung GmbH DE Germany (DE) Technische Universität Darmstadt DE Germany (DE) Max-Planck-Institut für Eisenforschung GmbH (MPIE) / Max Planck Institute for Iron Research DE Germany (DE)

How to cite

APA:

Ulrich, N., Schäfer, M., Römer, M., Straub, S.D., Zhang, S., Brötz, J.,... Toimil-Molares, M.E. (2023). Cu Nanowire Networks with Well-Defined Geometrical Parameters for Catalytic Electrochemical CO2 Reduction. ACS Applied Nano Materials, 6(6), 4190-4200. https://doi.org/10.1021/acsanm.2c05232

MLA:

Ulrich, Nils, et al. "Cu Nanowire Networks with Well-Defined Geometrical Parameters for Catalytic Electrochemical CO2 Reduction." ACS Applied Nano Materials 6.6 (2023): 4190-4200.

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