A Pt nanocrystalline supported 3D graphene and a preparation method thereof

The invention discloses a Pt nanocrystalline supported 3D graphene, which is characterized in that the Pt nanocrystalline supported 3D graphene is composed of the following components in parts by weight: 100 to 1000 parts of graphene oxide, 1 to 5 parts of K2PtCl4, 100 parts of reducing agent, and 1 to 10 parts of ethylenediamine tetramethylene phosphonic acid as the complexing agent, wherein thereducing agent is NH3. H2O. The aerosol of the invention has high performance due to the following reasons: a. Pt nanocrystal is very small, has high atom utilization rate, and the catalytic active site is fully exposed. b. Pt supported on GC can inhibit the aggregation of GC in the electrocatalysis process, so it has good stability. c. Three-dimensional aerosol structure, small molecules of the reaction raw material (e.g. Methanol) can be fully permeated and transported with high efficiency. 本发明公开了种Pt纳米晶负载的3D石墨烯，其特征在于：由下述重量份组成：络合剂：100～1000份氧化石墨烯：1～5份KPtCl：100份还原剂：1～10份所述络合剂为乙二胺四亚甲基膦酸；所述还原剂为NH.HO。本发明气溶胶具有高性能的原因在于a.Pt纳