Electrochemical CO2 to CO reduction at high current densities using a nanoporous gold catalyst

Autor:	Zhen Qi, Monika M. Biener, Ajay R. Kashi, Sara Hunegnaw, Alvin Leung, Sichao Ma, Ziyang Huo, Kendra P. Kuhl, Juergen Biener
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	electrochemical co2 reduction nanoporous gold dealloying electrocatalyst gas diffusion electrode Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 9, Iss 2, Pp 99-104 (2021)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2020.1842534
Popis:	We report on integrating ultrathin monolithic nanoporous gold (npAu) catalyst coatings for CO2 reduction in a large electrode area (25 cm2) electrochemical membrane reactor with gas diffusion electrodes at 100 mA/cm2. The CO Faraday efficiency increases with increasing thickness, from 65% to 75% and 80% for 1, 5, and 10 layers of npAu leaves where each npAu leaf layer is 100 nm thick. For the one npAu leaf layer configuration, this corresponds to an extremely high CO current density of 955 A/g gold thus demonstrating the potential for commercial applications.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/0859ff098abc47cc8f836bab6c27da58 Zobrazit plný text záznamu View record in DOAJ