• 专利标题:   Preparation method of X element-doped graphene hydrogen storage material modified by palladium-X alloy, involves dispersing metal source, non-metal source and graphene in solvent to obtain mixed dispersion, freezing dry dispersion liquid to obtain powder, and carrying out heat treatment.
  • 专利号:   CN114604824-A, CN114604824-B
  • 发明人:   CHEN Y, YAN Y, XIA G, WANG Y, JIN C, WU C
  • 专利权人:   UNIV SICHUAN
  • 国际专利分类:   C01B003/00
  • 专利详细信息:   CN114604824-A 10 Jun 2022 C01B-003/00 202272 Chinese
  • 申请详细信息:   CN114604824-A CN10431963 22 Apr 2022
  • 优先权号:   CN10431963

▎ 摘  要

NOVELTY - Preparation method of the X element-doped graphene hydrogen storage material modified by Pd-X alloy, involves (1) dispersing a metal source, a nonmetal source and graphene in a solvent to obtain a mixed dispersion liquid, (2)freeze-drying the mixed dispersion to obtain a powder; in a reducing atmosphere, carrying out heat treatment on the powder, and then carrying out heat preservation treatment to obtain a hydrogen storage material before impurity removal treatment; the hydrogen storage material comprises X element doped graphene, and Pd-X alloy is modified on the graphene; x includes at least one of P, N and B. USE - Preparation method of Pd-X alloy modified X element graphene hydrogen storage material used in hydrogen storage technologies such as high pressure gaseous hydrogen storage, organic liquid hydrogen storage and solid hydrogen storage. ADVANTAGE - The Pd-X alloy has excellent promoting effect for enhancing the hydrogen storage material of chemical adsorption hydrogen compared with pure graphene and hydrogen storage materials doped with alkaline earth element, and has excellent hydrogen overflow effect of the transition metal to realize fast H diffusion, and by doping non-metal to change the carbon material internal structure, reducing the interaction between ions, further increasing hydrogen storage amount, and the stable structure is kept in the process of absorbing and desorbing hydrogen. The solution solves the technical problem that transition metal doped carbon-based hydrogen storage is not capable of satisfying the application requirement in the aspects of hydrogen storage and has wide application prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for Pd-X X element doped with the graphene hydrogen storage material, has graphene comprises X element doped graphene, wherein Pd-X alloy is modified on the graphene; x comprises at least one of P, N and B, and the mass concentration of X element doping is 1-7%; the Pd-X alloy comprises PdaPb,PdaBb and PdaNbA ranges from 0.4-16, b ranges from 1- 3. DESCRIPTION OF DRAWING(S) - The drawing shows the experiment example 1 of nano-palladium modified modified reduction oxidation graphite the shape map.