• 专利标题:   Iron-molybdenum-sulfur-reduced graphene oxide hybrid catalyst comprises graphene oxide, ferric nitrate nonahydrate, ammonium molybdate, sodium sulgide, N,N-dimethyl formamide and distilled water.
  • 专利号:   CN107699919-A, CN107699919-B
  • 发明人:   ZHU L, SUN Y, CHEN H, QIAN W, JIANG J, LIN H, HAN S
  • 专利权人:   SHANGHAI INST TECHNOLOGY, SHANGHAI INST TECHNOLOGY
  • 国际专利分类:   C25B001/04, C25B011/06
  • 专利详细信息:   CN107699919-A 16 Feb 2018 C25B-011/06 201820 Pages: 10 Chinese
  • 申请详细信息:   CN107699919-A CN10962480 17 Oct 2017
  • 优先权号:   CN10962480

▎ 摘  要

NOVELTY - Iron-molybdenum-sulfur-reduced graphene oxide (Fe(2-1.5x)MoxS2-RGO) hybrid catalyst comprises 3-7 mg graphene oxide, 60-80 mg ferric nitrate nonahydrate, 1.48-14.8 mg ammonium molybdate, 150-170 mg sodium sulfide, 12-16 ml N,N-dimethyl formamide and distilled water (balance amount). USE - The hybrid catalyst is useful in electrocatalytic hydrogen evolution (claimed). ADVANTAGE - The catalyst has excellent stability, simple preparation process, enhances the performance of the electro-catalysis hydrogen evolution, and facing industrial development. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparation of hybrid catalyst comprising preparing graphene oxide by Hummer method, then dissolving graphene oxide in dimethylformamide, adding ferric nitrate nonahydrate, aqueous ammonium molybdate solution and sodium sulfide, stirring at 90 degrees C for 24 hours, then cooling, centrifuging, washing with distilled water for 3 times, then adding dimethylformamide solution in the hydrothermal reactor, carrying out hydrothermal reaction for 5-10 hours, centrifuging, and washing with distilled water for 3 times and freeze-drying at -70 degrees C to obtain final product; and (2) use of hybrid catalyst comprising (i) grinding the prepared hybrid catalyst, polishing the surface of the glassy carbon electrode with 0.05 mu m alumina, removing residual sample, rinsing with ethanol and water, and drying, (ii) talking 0.2-0.5 wt.% anhydrous methanol as nafion solution, dissolving 1 mg above-mentioned hybrid catalyst in 100 mu l configured nafion solution, dispersing evenly under ultrasound for 2 hours, then absorbing 6-24 mu l this solution on a glassy carbon electrode and drying naturally, (iii) configuring 1 M potassium hydroxide aqueous solution as the electrocatalytic electrolyte, passing argon into the air, washing the surface of the electrode of the glassy carbon electrode with 1 M potassium hydroxide solution, followed by a glassy carbon electrode, the silver/silver chloride electrode and connecting the platinum electrode to the electrochemical workstation, and measuring the performance of the hybrid catalyst for electrocatalytic hydrogen evolution in alkaline solution.