• 专利标题:   Producing two-dimensional nano-materials, useful in sensors, comprises adding sol precursor compound to mixture of graphene oxide particles or graphene particles and surfactant, reacting mixture in sol-gel process, and optionally heating.
  • 专利号:   WO2011131722-A1, EP2560918-A1, CN102906016-A, JP2013530908-W, KR2013097640-A, JP5777701-B2, CN102906016-B
  • 发明人:   IVANOVICI S, YANG S, FENG X, MUELLEN K, BIN Y S, KLAUS M
  • 专利权人:   BASF SE, MAX PLANCK GES FOERDERUNG WISSENSCHAFTEN, BASF SE, MAX PLANCK GES FOERDERUNG WISSENSCHAFTEN, BASF SE, MAX PLANCK GES FOERDERUNG WISSENSCHAFTEN, MAX PLANCK GES FOERDERUNG WISSENSCHAFTEN
  • 国际专利分类:   C01B031/04, B82Y030/00, B82Y040/00, C01B031/02, H01G011/22, H01M004/36, H01M004/587, H01M004/90, B82B001/00, B82B003/00
  • 专利详细信息:   WO2011131722-A1 27 Oct 2011 C01B-031/04 201173 Pages: 30 German
  • 申请详细信息:   WO2011131722-A1 WOEP056330 20 Apr 2011
  • 优先权号:   EP160702, KR730493

▎ 摘  要

NOVELTY - Producing two-dimensional nano-materials, comprises (a) providing a mixture (a1) containing e.g. graphene oxide particles, and at least a cationic and/or non-ionic surfactant or a mixture (a2) containing e.g. graphene particles, and at least a cationic and/or non-ionic surfactant, (b) adding at least a sol precursor compound to the mixture of step (a), (c) allowing the mixture of step (b) to react in a sol-gel process for forming a gel, (d) removing the surfactant and (e) optionally heating the graphene oxide particles coated with gel to reduce the graphene oxide to graphene. USE - The method is useful for producing two-dimensional nano-materials (claimed), which are useful in catalysts, sensors, capacitors, and primary and secondary electrochemical cells and fuel cells. ADVANTAGE - The method provides nano-materials with high yield. DETAILED DESCRIPTION - Producing two-dimensional nano-materials, comprises (a) providing a mixture (a1) containing graphene oxide particles, water and at least a cationic surfactant and/or non-ionic surfactant or a mixture (a2) containing graphene particles, at least a solvent for chemically splitting graphite, and at least a cationic surfactant and/or non-ionic surfactant, (b) adding at least a sol precursor compound to the mixture of step (a), (c) allowing the mixture of step (b) to react in a sol-gel process for forming a gel from the sol precursor compound on the graphene oxide particles or the graphene particles, (d) removing the surfactant and (e) optionally heating the graphene oxide particles coated with gel for at least 1 minute at at least 500 degrees C in an inert gas atmosphere in order to reduce the graphene oxide to graphene.