Continuous electroconversion of CO2 into formate using 2 nm tin oxide nanoparticles
| Autor: | Vincent Vivier, Olivier Durupthy, Ivan Merino-Garcia, Angel Irabien, Lionel Tinat, Carlos M. Sánchez-Sánchez, Jonathan Albo, Manuel Alvarez-Guerra |
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| Přispěvatelé: | Universidad de Cantabria, Laboratorio Associado para a Quimica Verde (LAQV), Requimte, Departamento de Química (DQ), Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade do Porto-Departamento de Química (DQ), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade do Porto, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Chemical and Biomolecular Engineering, Universidad de Cantabria [Santander], Laboratoire Interfaces et Systèmes Electrochimiques (LISE), MATISSE |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
SnO 2 nanoparticles Inorganic chemistry CO2 electroreduction Nanoparticle 02 engineering and technology 010402 general chemistry Electrocatalyst 01 natural sciences CO 2 electroreduction Catalysis law.invention chemistry.chemical_compound law formate [CHIM]Chemical Sciences Continuous reactor Formate General Environmental Science Electrolysis Process Chemistry and Technology SnO2 nanoparticles 021001 nanoscience & nanotechnology Tin oxide 0104 chemical sciences chemistry Cyclic voltammetry Gas diffusion electrodes 0210 nano-technology Faraday efficiency |
| Zdroj: | Applied Catalysis B: Environmental, 2021, 297, 120447 UCrea Repositorio Abierto de la Universidad de Cantabria instname Applied Catalysis B: Environmental Applied Catalysis B: Environmental, Elsevier, 2021, 297, pp.120447. ⟨10.1016/j.apcatb.2021.120447⟩ |
| ISSN: | 0926-3373 |
| DOI: | 10.1016/j.apcatb.2021.120447⟩ |
| Popis: | Tin oxide nanoparticles (SnO2 NPs) as electrocatalyst for the production of formate from CO2 reduction reaction (CO2RR). We synthesize, characterize and evaluate high surface area SnO2 NPs (2.4 nm and 299 m2 g-1 in diameter size and surface area, respectively), for the continuous production of formate at high current density within a flow electrolyzer. SnO2 NPs under Ar and CO2 reduction conditions were studied by cyclic voltammetry. SnO2-based gas diffusion electrodes (SnO2-GDEs) were manufactured to perform continuous CO2RR. 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 SnO2 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. The authors gratefully acknowledge the financial sources from the Spanish Ministry of Economy and Competitiveness (MINECO), through the project CTQ2016-76231-C2-1-R (AEI/FEDER, UE). Moreover, I.M.- G. and C.M. S.-S would like to thank the MINECO for the postdoctoral period in Paris of the predoctoral research contract (BES-2014-070081) and J. A. for the Ramón y Cajal programme (RYC-2015-17080), respectively. L.T. and O.D. acknowledge the support of French governmental funds managed by the ANR within the Investissements d’Avenir programme under reference ANR-11-IDEX-0004-02, and more specifically within the framework of the Cluster of Excellence MATISSE led by Sorbonne Universit´e. Dr. G. Gouget is strongly acknowledge for HR-TEM images. |
| Databáze: | OpenAIRE |
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