Fast Ortho-Para Conversion ofH2Adsorbed at Copper Surface Step Atoms
Abstract
Ortho-para conversion of H2 adsorbed at the step atoms of a Cu(510) surface proceeds with a short conversion time constant around 1 s as observed in electron-energy-loss measurements of rotational populations. We suggest that this rapid conversion is related to the special character of the adsorption state, which involves a short H2-Cu bond length of 1.8 A. On the flat Cu(100) surface, conversion is found to occur at active sites, most likely step atoms.
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Some materials, such as silver, copper, charcoal, graphite, and supported chromium and ferric oxides, have been found effective for ortho-to para-hydrogen conversion.
“Some materials, such as silver [81][82][83], copper [84,85], charcoal [56], graphite [86], and supported chromium [87,88] and ferric [89,90] oxides, have been found to be effective for this conversion.”
From 5917. https://doi.org/10.3390/en14185917. - (2021) · cites this paper as [85]
Silver, copper, charcoal, graphite, supported chromium oxides, and supported ferric oxides have been found effective for ortho-to-para hydrogen conversion.
“Some materials, such as silver[81][82][83], copper[84,85], charcoal[56], graphite[86], and supported chromium[87,88] and ferric[89,90] oxides, have been found to be effective for this conversion.”
From 5917. https://doi.org/10.3390/en14185917. - (2021) · cites this paper as [85]
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(2021) · doi:10.3390/en14185917 · Cited by 708 · see citing works
Strategies to recover and minimize boil-off losses during liquid hydrogen storage
Morales-Ospino, R., Celzard, A., & Fierro, V. (2023) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2023.113360 · Cited by 216 · see citing works
- Authors
- Svensson, K., & Andersson, S.
- Affiliations
- Chalmers University of Technology (SE)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-02-28
- Volume
- 98
- Issue
- 9
- Pages
- 096105-096105
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1978023862
- Cited by
- 28
- References
- 0
- Citations by year
- 2025: 3 · 2023: 5 · 2021: 2 · 2020: 2 · 2018: 2 · 2017: 2 · 2016: 1 · 2013: 4 · 2012: 2
- FWCI
- 0.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Surface Chemistry and Catalysis
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Surface and Thin Film Phenomena
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
- Keywords
- ortho-para conversion, hydrogen adsorption, Cu(100) surface, electron energy loss spectroscopy, adsorption dynamics, active site
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