LOW ENTHALPY ALLOY CATALYSTS AND METHODS
卷宗概要
发明人
Jian Xie; Hannah Zhang; Guangqi Zhu
IPC 分类
CPC 分类
Low enthalpy alloy catalysts and methods. The low enthalpy catalyst includes a low enthalpy alloy core and a Pt-rich shell covering the low enthalpy alloy core. The low enthalpy alloy core may include a platinum group metal, a rare earth metal, and/or a transition metal. The low enthalpy catalyst may be in particulate form, preferably having average particulate sizes in the range of a few nanometers. Methods of making the low enthalpy alloy catalysts include embedding metal ions in a carbon-nitrogen network on a carbon support, annealing the carbon support with the embedded ions, and acid leaching the annealed carbon support with the embedded ions to form a low enthalpy alloy catalyst having a low enthalpy alloy core encapsulated within a Pt-rich shell. The metal ions may all be embedded at the same time, or some metal precursors could be added and embedded during the annealing.
原文（中文）
Low enthalpy alloy catalysts and methods. The low enthalpy catalyst includes a low enthalpy alloy core and a Pt-rich shell covering the low enthalpy alloy core. The low enthalpy alloy core may include a platinum group metal, a rare earth metal, and/or a transition metal. The low enthalpy catalyst may be in particulate form, preferably having average particulate sizes in the range of a few nanometers. Methods of making the low enthalpy alloy catalysts include embedding metal ions in a carbon-nitrogen network on a carbon support, annealing the carbon support with the embedded ions, and acid leaching the annealed carbon support with the embedded ions to form a low enthalpy alloy catalyst having a low enthalpy alloy core encapsulated within a Pt-rich shell. The metal ions may all be embedded at the same time, or some metal precursors could be added and embedded during the annealing.