Počet záznamů: 1
Surface Sensitivity of Hydrogen Evolution and Formaldehyde Reduction on Differently Oriented TiO2 Anatase Nanocrystals
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SYSNO ASEP 0536993 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Surface Sensitivity of Hydrogen Evolution and Formaldehyde Reduction on Differently Oriented TiO2 Anatase Nanocrystals Tvůrce(i) Buravets, Vladislav (UFCH-W) SAI
Minhová Macounová, Kateřina (UFCH-W) RID, ORCID
Nebel, Roman (UFCH-W) RID, ORCID
Zukalová, Markéta (UFCH-W) RID, SAI, ORCID
Kavan, Ladislav (UFCH-W) RID, ORCID
Krtil, Petr (UFCH-W) RID, ORCIDZdroj.dok. Electrocatalysis . - : Springer - ISSN 1868-2529
Roč. 12, č. 1 (2021), s. 15-25Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova electrochemical co2 reduction ; titanium-oxide ; carbon-dioxide ; dependence ; oxygen ; acid ; Formaldehyde reduction ; Titanium dioxide ; Selectivity ; dems Vědní obor RIV CG - Elektrochemie Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Způsob publikování Omezený přístup Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000521014100001 EID SCOPUS 85082834906 DOI 10.1007/s12678-020-00595-x Anotace Selectivity of nanocrystalline anatase electrodes with different preferential surface orientation in formaldehyde reduction was assessed as a model of oxide-based catalyst for electrochemical CO2 valuation. Cathodic behavior of TiO2 (anatase)-based electrodes observed in formaldehyde reaction integrates, in fact, several processes including hydrogen evolution, formaldehyde reduction, and proton insertion into anatase structure. The electrochemical activity of the anatase-based cathodes is, regardless of the surface orientation, dominated by proton insertion. The proton insertion is more pronounced on {001}-oriented anatase than on {101}-oriented nanocrystals due to anisotropy of the proton transport in the anatase which is more facile in the (001) direction. Aside from the proton insertion, both anatase orientations also differ in selectivity in the formaldehyde reduction. While {101} surface orientation produces primarily hydrogen and methanol, the same process on {001}-oriented surfaces shows the ability to produce aside of methanol also hydrocarbons most likely methane. The overall activity towards the reduction of organics is, however, lower than that of metals. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2022 Elektronická adresa http://hdl.handle.net/11104/0314756
Počet záznamů: 1