NiPt-MnOx supported on N-doped porous carbon derived from metal-organic frameworks for highly efficient hydrogen generation from hydrazine

作者：Xia, Bingquan; Liu, Teng; Luo, Wei^*; Cheng, Gongzhen

来源：Journal of Materials Chemistry A, 2016, 4(15): 5616-5622.

DOI：10.1039/c6ta00766j

• OXYGEN REDUCTION REACTION
• ROOM-TEMPERATURE
• PTNI NANOPARTICLES
• GRAPHENE
• STORAGE
• CATALYST
• ALKALINE
• DEHYDROGENATION
• DECOMPOSITION
• PERFORMANCE

Safe and efficient storage of hydrogen is the key issue for the hydrogen economy. Hydrazine monohydrate is regarded as a potential hydrogen carrier. Herein, we report a facile synthesis of NiPt-MnOx supported on nitrogen-doped porous carbon (NPC) derived from annealing metal-organic frameworks (MOFs) at different temperatures in Ar. Interestingly, the obtained (Ni3Pt7)(0.5)-(MnOx)(0.5)/NPC-900 exhibits superior catalytic activity toward dehydrogenation of an alkaline solution of hydrazine, with initial turnover frequency values of 706 and 120 h(-1) at 323 K and room temperature, respectively. This excellent catalytic performance may have resulted from the synergistic electronic effect of NiPt and MnOx, the small size and high dispersion of NiPt-MnOx nanocatalysts, NPC as an excellent support with large pore volume, high surface area, high nitrogen content, electrical conductance, and also the high density of the metal-N active sites between NiPt-MnOx and NPC.

• 出版日期2016
• 单位武汉大学; 南开大学