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ANISOTROPIC NANOSTRUCTURE, PRODUCTION METHOD THEREFOR, AND CATALYST

外国特許コード F200010129
整理番号 6027,S2018-0120-C0
掲載日 2020年5月18日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP047807
国際公開番号 WO 2019131744
国際出願日 平成30年12月26日(2018.12.26)
国際公開日 令和元年7月4日(2019.7.4)
優先権データ
  • 特願2017-249511 (2017.12.26) JP
発明の名称 (英語) ANISOTROPIC NANOSTRUCTURE, PRODUCTION METHOD THEREFOR, AND CATALYST
発明の概要(英語) The present invention provides an anisotropic nanostructure that is expressed by formula RuxM1-x (in the formula, 0.6 ≤ x ≤ 0.999, and M represents at least one kind selected from the group consisting of Ir, Rh, Pt, Pd, and Au), the Ru and M being dissolved at the atomic level, and that has an anisotropic hexagonal close-packed (hcp) structure.
従来技術、競合技術の概要(英語) BACKGROUND ART
Ir (OER) catalyst is high catalyst activity of the oxygen generation reaction have been known (Non-Patent Document 1-5), over 250mV or more is required.
Is a highly active catalyst RuOx in the OER, in an acidic solution and rapidly decreases its activity. Non-Patent Document 6 is, as the OER catalyst Ru base Y2Ru2O7-δ are reported, time of activity in the 8 1 mA cm-2 is not held only.
Non-Patent Document 7 is, in an acidic solution and a hydrogen generation reaction (HER) both of the OER reaction as a catalyst having activity, reported RuO2-CNx is, overvoltage in the OER 250mV, the commercially available Pt/C inferior HER activity.
Non-Patent Document 8 is, the sheet-shaped Ru nanoparticles by the solvothermal method, it is oxidized in the air to the sheet-shaped nano discloses RuO2, HER are active, all active OER was low.
Non-Patent Document 9 is, in an acidic solution (OER) catalyst IrOx/SrIrO 3 of the oxygen generation reaction is disclosed, the overvoltage to reach the 10mA/cm2oxide 270mV is necessary.
Patent Document 1 is, the alloy nano-particles and PdRu solid solution is disclosed, the anisotropic crystal structure is not disclosed.
Patent Document 2 is a view, the material of the electrode alloy PdRu is shown, in one embodiment the reaction temperature is made 200°C, is inferior in durability in Fig. 6 are shown.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • KITAGAWA, Hiroshi
  • WU, Dongshuang
  • KUSADA, Kohei
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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