| abstract |
The invention provides a catalyst with low Pt loading, a preparation method and application thereof. The method comprises the following steps: supporting PtCeO 2 on a non-precious metal catalyst to prepare PtCeO 2 @M-N-C, wherein M is a non-precious metal catalyst. Precious metals, C is carbon, N is nitrogen. The present invention is suitable for various forms of non-precious metal catalysts. In addition, the reaction conditions of Pt salt and Ce salt are mild, and the subsequent high temperature pyrolysis process is not required, so that Pt and CeO 2 are in a highly dispersed state, and the improvement of Pt dispersion can improve the utilization of Pt rate, thereby reducing costs. |