Copper 3D-Printed Electrodes for Ammonia Electrosynthesis via Nitrate Reduction
Loading...
Date
2023-05-08
Authors
Perales Rondon, Juan Victor
Rojas Tizón, José Daniel
Gao, Wanli
Pumera, Martin
0000-0002-4404-4668Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
Altmetrics
Abstract
Ammonia is critical to the world economy. However, nowadays the production of ammonia is exclusively carried out by the well-known Haber-Bosch process, which is an energy-intensive process that leads to a large amount of CO2 emissions. The search for alternative ammonia production routes is mandatory for a sustainable and zero emissions future economy. Electrochemical nitrate-to-ammonia conversion emerges as a suitable alternative to achieve decentralized ammonia production at a small scale with zero emissions perspective. Here, we fabricate copper electrodes by a three-dimensional (3D) printing technique, which allows for the point-of-use customizable fabrication of electrochemical systems, and use them for nitrate-to-ammonia conversion. By using the fused fabrication filament printing technique, Cu-based electrodes were prepared in an easy, fast, and scalable way from a Cu-containing filament. The electrode was used for nitrate-to-ammonia conversion, obtaining an outstanding faradaic efficiency (FE) of 96.5% and a high ammonia selectivity of 95%. The fabrication of a copper-based electrochemical system for nitrate-to-ammonia conversion paves the way for an on-demand, point-of-use scalable electrochemical system for ammonia production.
Description
Citation
ACS Sustainable Chemistry and Engineering. 2023, vol. 11, issue 18, p. 6923-6931.
https://pubs.acs.org/doi/10.1021/acssuschemeng.2c06851
https://pubs.acs.org/doi/10.1021/acssuschemeng.2c06851
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en