High Performance Hydrogen Evolution Reaction Catalyst Based on Single-Walled Carbon Nanotubes Decorated by RuOx Nanoparticles
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2020-06-17
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Language
en
Pages
9
2651-2659
2651-2659
Series
CHEMELECTROCHEM, Volume 7, issue 12
Abstract
We report a cathode material based on plasma-treated single-walled carbon nanotubes decorated by RuOx nanoparticles using atomic layer deposition. We have examined cathode performance towards hydrogen evolution reaction by tailoring material wettability, conductivity yielded by plasma treatment, and the catalyst loading. We discuss that nucleation of particles is facilitated by the appearance of carboxylic and hydroxyl groups triggered by oxygen plasma action. The best performance is associated with samples containing RuOx particles of 4–5 nm, which show hydrogen evolution onset potential to be about −5 mV (vs. RHE) in 0.5 M H2SO4 measured at a current density of −1 mA cm−2 and Tafel slope of 47.5 mV/dec. The material possesses stable performance at −10 mA cm−2 with a potential of about −160 mV.Description
| openaire: EC/H2020/722614/EU//ELCOREL
Keywords
atomic layer deposition, carbon nanotubes, hydrogen evolution reaction, ruthenium oxide, wettability
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Citation
Fedorov, F S, Settipani, D, Melandsø Buan, M E, Sainio, J, Ali, F S M, Ilatovskii, D, Kallio, T & Nasibulin, A G 2020, ' High Performance Hydrogen Evolution Reaction Catalyst Based on Single-Walled Carbon Nanotubes Decorated by RuO x Nanoparticles ', ChemElectroChem, vol. 7, no. 12, pp. 2651-2659 . https://doi.org/10.1002/celc.202000528
