| Hybrid materials and Nano-materials |  |
Journal articles
Continuous electroconversion of CO2 into formate using 2 nm tin oxide nanoparticles
Abstract : Tin oxide nanoparticles (SnO 2 NPs) as electrocatalyst for the production of formate from CO 2 reduction reaction (CO 2 RR). We synthesize, characterize and evaluate high surface area SnO 2 NPs (2.4 nm and 299 m 2 g-1 in diameter size and surface area, respectively), for the continuous production of formate at high current density within a flow electrolyzer. SnO 2 NPs under Ar and CO 2 reduction conditions were studied by cyclic voltammetry. SnO 2based gas diffusion electrodes (SnO 2-GDEs) were manufactured to perform continuous CO 2 RR. A maximum formate concentration value of 27 g L-1 was achieved with a Faradaic efficiency (FE) of 44.9% at 300 mA cm-2 , which was significantly stable and reproducible when operated up to 10 h. Nevertheless, ohmic drop contribution due to the semiconducting properties of SnO 2 was not negligible. The low total FE (< 60%) of products pointed out a leakage of formate by crossover migration through the membrane from the catholyte towards the anolyte.
https://hal.sorbonne-universite.fr/hal-03267685
Contributor : Véronique Martin Connect in order to contact the contributor
Submitted on : Tuesday, June 22, 2021 - 3:53:39 PM
Last modification on : Saturday, April 23, 2022 - 3:37:18 AM
Long-term archiving on: : Thursday, September 23, 2021 - 6:52:59 PM
Contributor : Véronique Martin Connect in order to contact the contributor
Submitted on : Tuesday, June 22, 2021 - 3:53:39 PM
Last modification on : Saturday, April 23, 2022 - 3:37:18 AM
Long-term archiving on: : Thursday, September 23, 2021 - 6:52:59 PM
File
ApplCatalB-CarlosSANCHEZ-2021B...
Files produced by the author(s)