公开(公告)号：US20190237751A1

公开(公告)日：2019-08-01

申请号：US16320450

申请日：2017-07-25

申请人： PEKING UNIVERSITY

发明人： Maolin ZHAI ,  Pengfei CAO ,  Jing PENG ,  Jiuqiang LI

IPC分类号： H01M4/1397 ,  H01M4/58 ,  H01M4/583 ,  C01G39/06 ,  C01B32/15

CPC分类号： H01M4/1397 ,  C01B32/15 ,  C01G39/06 ,  C25B1/04 ,  H01M4/5815 ,  H01M4/583 ,  H01M4/86 ,  H01M4/8647 ,  H01M4/8825 ,  H01M4/90 ,  H01M4/9016 ,  H01M4/9083 ,  H01M8/0202 ,  H01M8/1004 ,  H01M2004/028 ,  H01M2220/30 ,  Y02E60/366

摘要： Provided are a MoSxOy/carbon nanocomposite material, a preparation method therefor and a use thereof. In the MoSxOy/carbon nanocomposite material, 2.5≤x≤3.1, 0.2≤y≤0.7, and the mass percent of MoSxOy is 5%-50% based on the total mass of the nanocomposite material. When the MoSxOy/carbon nanocomposite material is used as a catalyst for an electrocatalytic hydrogen evolution reaction, the current density is 150 mA/cm2 or more at an overpotential of 300 mV. The difference between this performance and the performance of a commercial 20% Pt/C catalyst is relatively small, or even equivalent; and this performance is far better than the catalytic performance of an existing MOS2 composite material. The MoSxOy/carbon nanocomposite material also has a good catalytic stability, and after 8,000 catalytic cycles, the current density thereof is only decreased by 3%, thus exhibiting a very good catalytic performance and cycle stability.

公开(公告)号：US20190267620A1

公开(公告)日：2019-08-29

申请号：US16320444

申请日：2017-07-25

申请人： PEKING UNIVERSITY

发明人： Maolin ZHAI ,  Pengfei CAO ,  Jing PENG ,  Jiuqiang LI

IPC分类号： H01M4/36 ,  H01M4/58 ,  H01M4/583 ,  H01M8/0606 ,  H01M8/22 ,  C25B11/04 ,  C25B1/04

摘要： A MoSx/carbon black nanocomposite material, and a manufacturing method and application thereof. In the MoSx/carbon black nanocomposite material, 2≤x≤2.3. The weight percentage of MoSx as part of the total weight of the nanocomposite material is 5-50%. The MoSx/carbon black nanocomposite material has 20% higher performance when compared to a commercial 20% Pt/C catalyst. The manufactured MoSx/carbon black nanocomposite material also has excellent catalytic stability. There is no significant decrease in catalytic performance of the material after 5,000 catalytic cycles.