Efficient cathode for the hydrogen evolution reaction in alkaline membrane water electrolysis based on NiCoP embedded in carbon fibres

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43926836" target="_blank" >RIV/60461373:22310/23:43926836 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0378775322014835" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0378775322014835</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jpowsour.2022.232506" target="_blank" >10.1016/j.jpowsour.2022.232506</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient cathode for the hydrogen evolution reaction in alkaline membrane water electrolysis based on NiCoP embedded in carbon fibres

Popis výsledku v původním jazyce

Porous carbon nano/microfibres (PCFs) modified by NiCoP nanoparticles (NiCoP/CF) were tested as gas diffusion cathodes in a zero-gap alkaline water electrolyser. Two types of precursors were used for the preparation of carbon fibres by needle-less spinning: polyacrylonitrile (PAN) and a combination of PAN and polyvinylpyrrolidone (PVP). The influence of the selected precursors on the morphology, porosity, and surface area of the carbon fibres was examined. Both samples NiCoP/CF_PAN and NiCoP/CF_PAN-PVP were characterised by means of (i) structural and phase composition, (ii) catalytic activity for the hydrogen evolution reaction (HER), and (iii) performance and stability under membrane alkaline water electrolysis (MAWE) conditions. The more porous, yet stable fibres of the NiCoP/CF_PAN outperformed the NiCoP/CF_PAN-PVP cathode. Nevertheless, both cathodes achieved high activity comparable to the Ni electrode modified by Pt/C catalyst, as well as exceptional stability for long-term intermittent electrolysis under MAWE conditions. © 2022 The Authors

Název v anglickém jazyce

Efficient cathode for the hydrogen evolution reaction in alkaline membrane water electrolysis based on NiCoP embedded in carbon fibres

Popis výsledku anglicky

Porous carbon nano/microfibres (PCFs) modified by NiCoP nanoparticles (NiCoP/CF) were tested as gas diffusion cathodes in a zero-gap alkaline water electrolyser. Two types of precursors were used for the preparation of carbon fibres by needle-less spinning: polyacrylonitrile (PAN) and a combination of PAN and polyvinylpyrrolidone (PVP). The influence of the selected precursors on the morphology, porosity, and surface area of the carbon fibres was examined. Both samples NiCoP/CF_PAN and NiCoP/CF_PAN-PVP were characterised by means of (i) structural and phase composition, (ii) catalytic activity for the hydrogen evolution reaction (HER), and (iii) performance and stability under membrane alkaline water electrolysis (MAWE) conditions. The more porous, yet stable fibres of the NiCoP/CF_PAN outperformed the NiCoP/CF_PAN-PVP cathode. Nevertheless, both cathodes achieved high activity comparable to the Ni electrode modified by Pt/C catalyst, as well as exceptional stability for long-term intermittent electrolysis under MAWE conditions. © 2022 The Authors

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/EF16_025%2F0007414" target="_blank" >EF16_025/0007414: Palivové články s nízkým obsahem platinových kovů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>O - Projekt operacniho programu

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Power Sources

ISSN

0378-7753

e-ISSN

—

Svazek periodika

556

Číslo periodika v rámci svazku

556

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85144027039