• 专利标题:   Ruthenium graphene composite two-dimensional material used as hydrogen evolution electro-catalyst, comprises graphene and metal ruthenium adsorbed on graphene where metal ruthenium is dispersed in single atom.
  • 专利号:   CN114210326-A, CN114210326-B
  • 发明人:   LI Y, WU Z
  • 专利权人:   CAS DALIAN CHEM PHYSICAL INST
  • 国际专利分类:   B01J023/46, C25B001/04, C25B011/093, B01J035/10, C25B011/091
  • 专利详细信息:   CN114210326-A 22 Mar 2022 B01J-023/46 202238 Chinese
  • 申请详细信息:   CN114210326-A CN10922600 04 Sep 2020
  • 优先权号:   CN10922600

▎ 摘  要

NOVELTY - Ruthenium graphene composite two-dimensional material comprises graphene and metal ruthenium adsorbed on the graphene where the metal ruthenium is dispersed in a single atom, the loading amount of ruthenium in the ruthenium graphene composite two-dimensional material is more than 10 wt.%. USE - Ruthenium graphene composite two-dimensional material used as hydrogen evolution electro-catalyst (claimed). ADVANTAGE - The ruthenium graphene composite two-dimensional material effectively solves the problem of low load of ruthenium single atom. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing ruthenium graphene composite two-dimensional material which involves: i. preparing a dispersion containing a ruthenium precursor a metal A precursor and a graphene oxide; ii. drying the dispersion liquid, annealing to obtain the ruthenium+/graphene two-dimensional material where the ruthenium + A/ graphene two-dimensional material comprises graphene and metal ruthenium and metal A adsorbed on the graphene, the atom diameter of the metal A is greater than the atomic diameter of the metal ruthenium; iii. corroding the metal A in the ruthenium + A/graphene two-dimensional material by corrosive liquid obtain the ruthenium graphene composite two-dimensional material.