Patent ID: 9694346
Date: 2017-07-04
CPC Classifications: B01J,H01M,Y02E

Claim:
1. A method for making catalysts of noble metal nanoparticles or alloy nanoparticles or both having shaped morphology, the method comprising the steps of: pretreating a support material; impregnating metal precursors onto said support material; and reducing the impregnated metal precursors into shaped metal nanoparticles or shaped alloy nanoparticles or both using a functional gas atmosphere wherein, after reduction, the functional gas atmosphere absorbs to either the (100) planes of the impregnated metal precursors to give the shaped metal nanoparticle or shaped alloy nanoparticles a cubic morphology or to the (111) planes of the impregnated metal precursors to give the shaped metal nanoparticle or shaped alloy nanoparticles either a tetrahedral or an octahedral morphology.