The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction

The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction

The competitive adsorption of organic molecules (2,7-naphthalenedisulfonic acid) and adsorbed H is of interest in relation to its influence on H absorption into a Pd-Ni electrodeposited alloy. The experimental results, in acid solution, show an enhancement of the coverage of the electrode surface wi...

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Main Author: LJILJANA VRACAR
Format: Article
Language:English
Published: Serbian Chemical Society 2001-12-01
Series:Journal of the Serbian Chemical Society
Subjects:
hydrogen adsorption
absorption
hydrogen evolution
lateral interactions
Online Access:http://www.shd.org.yu/HtDocs/SHD/Vol66/No11-12/V66-No-11-12-06.pdf
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spelling doaj-925e5b0253e74e1a8eeac3c85b457fd22020-11-24T22:56:10ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51392001-12-016611-12799809The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reactionLJILJANA VRACARThe competitive adsorption of organic molecules (2,7-naphthalenedisulfonic acid) and adsorbed H is of interest in relation to its influence on H absorption into a Pd-Ni electrodeposited alloy. The experimental results, in acid solution, show an enhancement of the coverage of the electrode surface with adosrbed H due to the competitive adsorption of organic molecules that interfere with H atoms, through lateral attractive interactions between the adsorbed species and communal electronic effects, leading supposedly to a decreased probability of H entry into the alloy. Chemisorbed H is, on the other hand, an intermediate in the HER, so the enhancement of the electrode coverage in the presence of co-adsorbed organic molecules promotes the hydrogen evolution reaction.http://www.shd.org.yu/HtDocs/SHD/Vol66/No11-12/V66-No-11-12-06.pdfhydrogen adsorptionabsorptionhydrogen evolutionlateral interactions
collection DOAJ
language English
format Article
sources DOAJ
author LJILJANA VRACAR
spellingShingle LJILJANA VRACAR
The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
Journal of the Serbian Chemical Society
hydrogen adsorption
absorption
hydrogen evolution
lateral interactions
author_facet LJILJANA VRACAR
author_sort LJILJANA VRACAR
title The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
title_short The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
title_full The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
title_fullStr The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
title_full_unstemmed The effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
title_sort effect of organic molecules adsorption on hydrogen absorption in relation to the hydrogen evolution reaction
publisher Serbian Chemical Society
series Journal of the Serbian Chemical Society
issn 0352-5139
publishDate 2001-12-01
description The competitive adsorption of organic molecules (2,7-naphthalenedisulfonic acid) and adsorbed H is of interest in relation to its influence on H absorption into a Pd-Ni electrodeposited alloy. The experimental results, in acid solution, show an enhancement of the coverage of the electrode surface with adosrbed H due to the competitive adsorption of organic molecules that interfere with H atoms, through lateral attractive interactions between the adsorbed species and communal electronic effects, leading supposedly to a decreased probability of H entry into the alloy. Chemisorbed H is, on the other hand, an intermediate in the HER, so the enhancement of the electrode coverage in the presence of co-adsorbed organic molecules promotes the hydrogen evolution reaction.
topic hydrogen adsorption
absorption
hydrogen evolution
lateral interactions
url http://www.shd.org.yu/HtDocs/SHD/Vol66/No11-12/V66-No-11-12-06.pdf
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