@inproceedings{bddfcb8e5fbe43629686494b2bc4bb08,
title = "Speciation of raney copper oxide during high-temperature desulfurization",
abstract = "Speciation of copper in the Raney copper oxides (R-CuO) during high-temperature desulfurization has been studied by X-ray absorption spectroscopy. The preedge XANES spectra (8975-8979 eV) of R-CuO exhibit a very weak 1s-to-3d transition forbidden by the selection rule in the case of the perfect octahedral symmetry. A shoulder at 8985-8988 eV and an intense band at 8994-9002 eV can be attributed to the 1s-to-4p transition that indicates the existence of the Cu(II) species. The preedge band at 8981-8984 eV can be attributed to the dipole-allowed 1s-to-4p transition of Cu(I), suggesting an existence of Cu2S during sulfurization. An enhanced absorbance at 9003 eV shows that Cu(0) species may be formed in the sulfurized R-CuO. The main copper species in regenerated R-CuO are CuO (96%) and Cu2S (4%).",
author = "Wang, {T. C.} and Wang, {H. Paul} and Chen, {C. Y.} and Huang, {Hsin Liang} and Wei, {Yu Ling}",
year = "2007",
doi = "10.1063/1.2644639",
language = "English",
isbn = "0735403848",
series = "AIP Conference Proceedings",
pages = "705--707",
booktitle = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13",
note = "X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference ; Conference date: 09-07-2006 Through 14-07-2006",
}