Cobalt pyridinoporphyrazine film as a platinum group metal-free mediator in hydrogen electrochemistry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00508539" target="_blank" >RIV/61388955:_____/19:00508539 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/19:10399166

Výsledek na webu

<a href="http://hdl.handle.net/11104/0299411" target="_blank" >http://hdl.handle.net/11104/0299411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00706-019-02452-0" target="_blank" >10.1007/s00706-019-02452-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cobalt pyridinoporphyrazine film as a platinum group metal-free mediator in hydrogen electrochemistry

Popis výsledku v původním jazyce

The cobalt pyridinoporphyrazine film deposited on basal plane highly oriented pyrolytic graphite (HOPG) and Au(111) electrodes exhibited electrocatalytic activity to hydrogen oxidation reaction compared to the bare electrode surfaces. The deposition performed by spontaneous adsorption of the cobalt pyridinoporphyrazine complex from its aqueous solution led on basal plane HOPG to the formation of a uniform homogeneous film with simultaneous reduction of cobalt centre, while at Au(111) electrode preferential aggregation of pyridinoporphyrazine complex took place without any change of reduction state of cobalt. Accordingly, both substrates affected the pathway of electrocatalytic hydrogen oxidation. Potentiometric detection of hydrogen based on equilibrium potential of pyridinoporphyrazine Co(II)/Co(I) electrode upon alternation presence of hydrogen and argon in solution was examined.

Název v anglickém jazyce

Cobalt pyridinoporphyrazine film as a platinum group metal-free mediator in hydrogen electrochemistry

Popis výsledku anglicky

The cobalt pyridinoporphyrazine film deposited on basal plane highly oriented pyrolytic graphite (HOPG) and Au(111) electrodes exhibited electrocatalytic activity to hydrogen oxidation reaction compared to the bare electrode surfaces. The deposition performed by spontaneous adsorption of the cobalt pyridinoporphyrazine complex from its aqueous solution led on basal plane HOPG to the formation of a uniform homogeneous film with simultaneous reduction of cobalt centre, while at Au(111) electrode preferential aggregation of pyridinoporphyrazine complex took place without any change of reduction state of cobalt. Accordingly, both substrates affected the pathway of electrocatalytic hydrogen oxidation. Potentiometric detection of hydrogen based on equilibrium potential of pyridinoporphyrazine Co(II)/Co(I) electrode upon alternation presence of hydrogen and argon in solution was examined.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monatshefte fur Chemie

ISSN

0026-9247

e-ISSN

—

Svazek periodika

150

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

8

Strana od-do

1643-1650

Kód UT WoS článku

000482907600013

EID výsledku v databázi Scopus

2-s2.0-85070187530