@article{10902/20132,
year = {2020},
month = {12},
url = {http://hdl.handle.net/10902/20132},
abstract = {A highly efficient copper-catalyst (noble-metal free) was developed for the electrochemical reduction of CO2 (ERCO2) to methanol. Due to the nanowire structure of the catalyst, a remarkable ERCO2 selectivity was achieved, while the competing H2 evolution reaction (HER) was significantly suppressed for the overall range of potential tested. The developed copper-catalyst (CuO NWs) outperforms the single metal Cu-catalysts in aqueous environment. Under atmospheric conditions, methanol was produced at an overpotential of 410 mV with a faradaic efficiency (FE) of 66%, and 1.27  ×  10−4 mol m−2 s−1 of production yield; which represents a 6.7% improvement over the previously reported value of 1.19  ×  10−4 mol m−2 s−1. Interestingly, when the developed CuO NWs was used as a gas diffusion electrode (GDE) in a filter-press cell (more real industrial configuration), methanol remained as the major ERCO2 product with the same FE (66%).},
organization = {Azenha, C., is grateful to the Portuguese Foundation for Science and Technology (FCT) for the doctoral grant (refer- ence SFRH/BD/128768/2017 ). This work was performed under the project “SunStorage - Harvesting and storage of solar energy”, with reference POCI-01-0145-FEDER-016387, funded by European Regional Development Fund (ERDF), through COMPETE 2020 - Operational Programme for Competitiveness and internationalisation (OPCI), and by national funds, through FCT - Fundação para a Ciência e a Tecnologia I.P. The authors are thankful to POCI-01- 0145-FEDER-006939 (Laboratory for Process Engineering, Environ- ment, Biotechnology and Energy – UID/EQU/00511/2013) funded by the European Regional Development Fund (ERDF), through COM- PETE2020 - Programa Operacional Competitividade e Internacional- ização (POCI) and by national funds, through FCT - Fundação para a Ciência e a Tecnologia and NORTE-01-0145-FEDER-0 0 0 0 05 –LEPABE-2-ECO-INNOVATION, supported by North Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Develop- ment Fund (ERDF).},
publisher = {Elsevier},
publisher = {Electrochimica Acta, 2020, 363, 137207},
title = {Enhancement of the electrochemical reduction of CO2 to methanol and suppression of H2 evolution over CuO nanowires},
author = {Azenha, Cátia and Mateos Pedrero, Cecilia and Álvarez Guerra, Manuel and Irabien Gulías, Ángel and Mendes, Adélio},
}