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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| Format: | Article |
| Language: | English |
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Serbian Chemical Society
2001-12-01
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| Series: | Journal of the Serbian Chemical Society |
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| Online Access: | http://www.shd.org.yu/HtDocs/SHD/Vol66/No11-12/V66-No-11-12-06.pdf |
| _version_ | 1818231240500707328 |
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| author | LJILJANA VRACAR |
| author_facet | LJILJANA VRACAR |
| author_sort | LJILJANA VRACAR |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-12T10:47:15Z |
| format | Article |
| id | doaj.art-925e5b0253e74e1a8eeac3c85b457fd2 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 |
| language | English |
| last_indexed | 2024-12-12T10:47:15Z |
| publishDate | 2001-12-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-925e5b0253e74e1a8eeac3c85b457fd22022-12-22T00:26:51ZengSerbian Chemical SocietyJournal 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 |
| 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 |
| title | 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_short | 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 |
| 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 |
| work_keys_str_mv | AT ljiljanavracar theeffectoforganicmoleculesadsorptiononhydrogenabsorptioninrelationtothehydrogenevolutionreaction AT ljiljanavracar effectoforganicmoleculesadsorptiononhydrogenabsorptioninrelationtothehydrogenevolutionreaction |