Zobrazeno 1 - 10 of 13 pro vyhledávání: '"J. C. Vickerman"'
2
Performance characteristics of a chemical imaging time-of-flight mass spectrometer
Autor: R M, Braun, P, Blenkinsopp, S J, Mullock, C, Corlett, K F, Willey, J C, Vickerman, N, Winograd
Publikováno v: Rapid communications in mass spectrometry : RCM. 12(18)
A chemical imaging time-of-flight secondary ion mass spectrometer is described. It consists of a liquid metal ion gun, medium energy resolution reflectron mass analyzer, liquid nitrogen cooled sample stage, preparation chamber and dual stage entry po
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7d790d50e79dffbab2fcfd52f1b368a6
https://pubmed.ncbi.nlm.nih.gov/9772767
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3
Hydrogen-deuterium exchange catalysed by chromia-alumina solid solutions
Autor: F. S. Stone, J. C. Vickerman
Publikováno v: Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences. 354:331-347
$\alpha $-Alumina, $\alpha $-chromia and ten corundum-phase chromia-alumina solid solutions $\alpha $-Cr$\_{x}$Al$\_{2-x}$O$_{3}$ with $x$ ranging from 0.002 to 1.4 have been studied as catalysts for hydrogen-deuterium exchange over the temperature r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11f11dd2d2e5a1d1213b53a4a9ea8b9f
https://doi.org/10.1098/rspa.1977.0070
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6
Magnetic properties of chromium ions in oxide matrices. Part 1.—Cr2O3-Al2O3solid solutions
Autor: F. S. Stone, J. C. Vickerman
Publikováno v: Trans. Faraday Soc.. 67:316-328
Magnetic susceptibilities (77 to 700 K) and e.p.r. spectra (100 to 573 K ) have been measured for a series of spinel solid solutions MgCrxAl2–xO4 with x varying from 0.002 to 2. The Racah parameter B has been obtained from optical reflectance spect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24913fc1a1bd385c832aa3b6f5847971
https://doi.org/10.1039/tf9716700316
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7
Structural characterization of MgO—Cr2O3—(Li2O) polycrystalline solids by e.s.r. methods
Autor: A. Cimino, D. Cordischi, J. C. Vickerman
Publikováno v: Trans. Faraday Soc.. 66:1312-1321
The polycrystalline solids MgO—Cr2O3 and MgO—Cr2O3—Li2O have been studied using e.s.r. methods. Three separate signals were obtained from the MgO—Cr2O3 specimens. These have been assigned to Cr3+ ions, first, in solid solution in sites of cub
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35d787abcf620a55e634a1f140e19a2a
https://doi.org/10.1039/tf9706601312
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10
SSIMS — A Powerful Tool for the Characterisation of the Adsorbate State of CO on Metallic and Bimetallic Surfaces
Autor: J. C. Vickerman, A. Brown
Publikováno v: Springer Series in Chemical Physics ISBN: 9783642827266
In order to fully characterise the adsorbate state we need to know the chemical structure, the surface coverage of the various states and the bond energy. The work described in this paper will demonstrate that static SIMS can provide most of this inf
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12bd03df343b4180bf8d90b1eb056182
https://doi.org/10.1007/978-3-642-82724-2_58
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