X-ray diffraction and high-resolution TEM observations of biopolymer nanoskin-covered metallic copper fine particles: preparative conditions and surface oxidation states


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/60502

Title:	X-ray diffraction and high-resolution TEM observations of biopolymer nanoskin-covered metallic copper fine particles: preparative conditions and surface oxidation states
Authors:	Yonezawa, Tetsu Browse this author →KAKEN DB
	Uchida, Yoshiki Browse this author
	Tsukamoto, Hiroki Browse this author
Issue Date:	2015
Publisher:	Royal Society of Chemistry
Journal Title:	Physical chemistry chemical physics
Volume:	17
Issue:	48
Start Page:	32511
End Page:	32516
Publisher DOI:	10.1039/c5cp06107e
PMID:	26593236
Abstract:	Metallic copper fine particles used for electro conductive pastes were prepared by the chemical reduction of cupric oxide microparticles in the presence of gelatin. After reduction, the fine particles were collected by decantation with pH control and washing, followed by drying at a moderate temperature. The surface oxidation state of the obtained copper fine particles could be considerably varied by altering the pH of the particle dispersion, as shown by X-ray diffraction and high-resolution transmission electron microscopy. Our results strongly indicate that decantation under a nitrogen atmosphere can prevent the oxidation of copper fine particles but a slight oxidation was found.
Rights:	http://creativecommons.org/licenses/by/3.0/
Type:	article
URI:	http://hdl.handle.net/2115/60502
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 米澤徹

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