Počet záznamů: 1
Hydrogen evolution reaction enhanced by water-soluble metallopyridinoporphyrazine complex adsorbed on highly oriented pyrolytic graphite
- 1.
SYSNO ASEP 0508542 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrogen evolution reaction enhanced by water-soluble metallopyridinoporphyrazine complex adsorbed on highly oriented pyrolytic graphite Tvůrce(i) Klusáčková, Monika (UFCH-W) RID, ORCID
Janda, Pavel (UFCH-W) RID, ORCID
Tarábková, Hana (UFCH-W) RID, ORCIDZdroj.dok. International Journal of Hydrogen Energy. - : Elsevier - ISSN 0360-3199
Roč. 44, č. 23 (2019), s. 11431-11440Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Metallopyridinoporphyrazine ; Modified electrode ; Electrocatalysis 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 000468710100007 EID SCOPUS 85063957285 DOI 10.1016/j.ijhydene.2019.03.177 Anotace The ultrathin (∼2 nm) film of N,N',N'′,N′″-tetramethyltetra-3,4-pyridino-porphyrazinato-cobalt(II) complex adsorbed on the basal plane of highly oriented pyrolytic graphite (HOPG/Co(I)Tmtppa) was used as a mediator for electrocatalytic hydrogen evolution reaction (HER) in a wide range of pH. The Co(I)Tmtppa film was characterized by in-situ backscattering spectroscopy, atomic force microscopy and cyclic voltammetry. Electrocatalytic measurements of HOPG/Co(I)Tmtppa electrode using voltammetric techniques showed up to 60-fold increase of current density and overpotential decreased by 300 mV, compared to the bare HOPG electrode at pH 11 and confirmed very good stability with only 8% deviation over 1000 cycles. The Tafel analysis indicated the Volmer-Heyrovsky mechanism of hydrogen evolution reaction with hydrogen adsorption rate-determining step at all pH values. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2020 Elektronická adresa http://hdl.handle.net/11104/0299414
Počet záznamů: 1