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Cuprous hydroxide in a solid form: does it exist?
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry.ORCID iD: 0000-0003-0663-0751
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2013 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 42, no 26, 9585-9594 p.Article in journal (Refereed) Published
Abstract [en]

Experimental studies have been performed to obtain the unknown cuprous hydroxide compound, which has recently been predicted theoretically (P. A. Korzhavyi et. al., Proc. Natl. Acad. Sci. U. S. A., 2012, 109, 686-689) to be metastable in a solid form. The reduction of Cu2+ with ferrous ethylenediamine tetraacetate (EDTA) results in the formation of a yellow powder precipitate whose composition corresponds to CuOH x H2O as probed by Fourier Transform Infrared Spectroscopy (FTIR) and cryogenic X-ray Photoelectron Spectroscopy (XPS). A similar compound has been found on the surface of Cu-CuH powder stored in water, as detected by XPS. The reduction of Cu2+ to Cu+ with free radicals in aqueous solutions results in a Cu2O precipitate as the final product, while the formation of the yellow cuprous hydroxide colloids may be an intermediate step. Our studies reveal that cuprous hydroxide does exist in a solid form and most likely has a hydrated form, CuOH x H2O.

Place, publisher, year, edition, pages
RSC Publishing, 2013. Vol. 42, no 26, 9585-9594 p.
Keyword [en]
Functional Perturbation-Theory, Near-Ambient Conditions, Copper Hydride, Thermal-Decomposition, Fundamental-Aspects, Crystal-Structure, Water, Hydrogen, Reduction, Surfaces
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Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-124734DOI: 10.1039/c3dt50351hISI: 000320246200023Scopus ID: 2-s2.0-84881034187OAI: oai:DiVA.org:kth-124734DiVA: diva2:638223
Note

QC 20130729

Available from: 2013-07-29 Created: 2013-07-29 Last updated: 2017-12-06Bibliographically approved

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Jonsson, MatsKorzhavyi, Pavel A.

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