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REDUCTION MATERIAL, COMPOSITE BODY AND REDUCTION METHOD UPDATE_EN meetings

Foreign code F200010219
File No. 18T177P,(S2019-0217-N0)
Posted date Sep 15, 2020
Country WIPO
International application number 2020JP008878
International publication number WO 2020179779
Date of international filing Mar 3, 2020
Date of international publication Sep 10, 2020
Priority data
  • P2019-042011 (Mar 7, 2019) JP
Title REDUCTION MATERIAL, COMPOSITE BODY AND REDUCTION METHOD UPDATE_EN meetings
Abstract A reduction material which is composed of a two-dimensional borohydride-containing sheet that has a two-dimensional network composed of (BH)n (n ≥ 4). A composite body which comprises metal nanoparticles and a two-dimensional borohydride-containing sheet that has a two-dimensional network composed of (BH)n (n ≥ 4). A reduction method which comprises: a step for preparing a dispersion liquid containing the reduction material by dissolving a reduction material that is set forth in one of claims 1-5 in an organic solvent; and a step for reducing metal ions having a redox potential that has a standard electrode potential of - 0.26 V/SHE or more by mixing the dispersion liquid with the metal ions.
Outline of related art and contending technology BACKGROUND ART
Conventionally, reducing agents such as hydrazine have been used in the production of chemical products and in the synthesis of pharmaceuticals. However, conventional reducing agents such as hydrazine cannot selectively reduce metal ions in accordance with the standard electrode potential of the target metal ions.
It is also known that a sheet-like substance produced by mixing water with magnesium diboride (MgB2) can be used as a reducing agent (, for example, see Non-Patent Document 1). It is expected that the sheet-like substance described in Non-Patent Document 1 can selectively reduce metal ions.
Scope of claims (In Japanese)[請求項1]
 (BH) n(n≧4)からなる二次元ネットワークを有する二次元ホウ化水素含有シートからなる還元材料。

[請求項2]
 標準電極電位が-0.27V/SHE以上-0.26V/SHE以下である請求項1に記載の還元材料。

[請求項3]
 前記二次元ネットワークは、ホウ素原子が六角形の環状に配列し、前記ホウ素原子によって形成される六角形が連接してなる網目状をなし、前記ホウ素原子のうち隣接する2つが同一の水素原子と結合する部位を有する請求項1または2に記載の還元材料。

[請求項4]
 前記二次元ホウ化水素含有シートの一部が酸化物で終端されている請求項1~3のいずれか1項に記載の還元材料。

[請求項5]
 前記二次元ホウ化水素含有シートの少なくとも一方向の長さが100nm以上である請求項1~4のいずれか1項に記載の還元材料。

[請求項6]
 (BH) n(n≧4)からなる二次元ネットワークを有する二次元ホウ化水素含有シートと、金属ナノ粒子と、を含む複合体。

[請求項7]
 請求項1~5のいずれか1項に記載の還元材料を有機溶媒に分散させて、前記還元材料を含む分散液を調製する工程と、
 前記分散液と金属イオンを混合することにより、標準電極電位が-0.26V/SHE以上の酸化還元電位を持つ金属イオンを還元する工程と、を有する還元方法。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • UNIVERSITY OF TSUKUBA
  • TOKYO INSTITUTE OF TECHNOLOGY
  • Inventor
  • KONDO Takahiro
  • FUJINO Asahi
  • ISHIBIKI Ryota
  • GOTO Taiga
  • MIYAUCHI Masahiro
  • KAWAMURA Reiya
  • HIRABAYASHI Toru
  • ITO Shin-ichi
IPC(International Patent Classification)
Specified countries 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 ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS 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
Reference ( R and D project ) (In Japanese)平成30年度、文部科学省、科学技術試験研究委託事業、東工大元素戦略拠点(TIES)
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