Title:
WRUTZITE-TYPE MANGANESE OXIDE PARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/095682
Kind Code:
A1
Abstract:
Provided are novel wrutzite-type manganese oxide particles. A compound containing manganese is thermally decomposed to produce manganese oxide particles. In this procedure, a polyol-based material and a reducing agent comprising at least one ethylene glycol stearate-based material are added as additives to the reaction system, the resultant product is heated at a first temperature (200℃ or lower) under a pressure-reduced atmosphere, then the temperature is increased, and the product is heated at a temperature higher than the first temperature under an inert gas atmosphere. In this manner, single-phase wrutzite-type manganese oxide particles each having a particle diameter of 100 nm or less can be produced.
Inventors:
KAZAMA TAKUYA (JP)
TAMURA WATARU (JP)
MIYAKE YASUYUKI (JP)
MORIYAMA KENJI (JP)
MURAMATSU ATSUSHI (JP)
KANIE KIYOSHI (JP)
TAMURA WATARU (JP)
MIYAKE YASUYUKI (JP)
MORIYAMA KENJI (JP)
MURAMATSU ATSUSHI (JP)
KANIE KIYOSHI (JP)
Application Number:
PCT/JP2020/041704
Publication Date:
May 20, 2021
Filing Date:
November 09, 2020
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD (JP)
International Classes:
C01G45/00; H01M4/36; H01M4/50
Foreign References:
| JP2002529352A | 2002-09-10 | |||
| KR20120021632A | 2012-03-09 | |||
| JP2011207674A | 2011-10-20 | |||
| CN107441512A | 2017-12-08 | |||
| JP2015010033A | 2015-01-19 |
Other References:
NAM, K. M. ET AL.: "New Crystal Structure: Synthesis and Characterization of Hexagonal Wurtzite MnO", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 134, no. 20, 23 May 2012 (2012-05-23), pages 8392 - 8395, XP055823911, DOI: 10.1021/ja302440y
NAM, K. M. ET AL.: "Chemical Approach to a New Crystal Structure: Phase Control of Manganese Oxide on a Carbon Sphere Template", CHEMISTRY AN ASIAN JOURNAL, vol. 9, no. 12, 9 October 2014 (2014-10-09), pages 3525 - 3532, XP055823914, DOI: 10.1002/asia. 201403021
NAM, K. M. ET AL.: "Non-native transition metal monoxide nanostructures: unique physicochemical properties and phase transformations of CoO, MnO and ZnO", NPG ASIA MATERIALS, vol. 9, no. 3, 24 March 2017 (2017-03-24), pages e364, XP055823917, DOI: 10.1038/am.2017.38
KI MIN NAM ET AL., J. AM. CHEM. SOC., vol. 134, 2012, pages 8392 - 8395
See also references of EP 4059893A4
NAM, K. M. ET AL.: "Chemical Approach to a New Crystal Structure: Phase Control of Manganese Oxide on a Carbon Sphere Template", CHEMISTRY AN ASIAN JOURNAL, vol. 9, no. 12, 9 October 2014 (2014-10-09), pages 3525 - 3532, XP055823914, DOI: 10.1002/asia. 201403021
NAM, K. M. ET AL.: "Non-native transition metal monoxide nanostructures: unique physicochemical properties and phase transformations of CoO, MnO and ZnO", NPG ASIA MATERIALS, vol. 9, no. 3, 24 March 2017 (2017-03-24), pages e364, XP055823917, DOI: 10.1038/am.2017.38
KI MIN NAM ET AL., J. AM. CHEM. SOC., vol. 134, 2012, pages 8392 - 8395
See also references of EP 4059893A4
Attorney, Agent or Firm:
Sannozaka Patent Law Firm (JP)
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