ORR Reactivity of Surface Ni Along with Pt Surface in Pt-Ni Surface

EasyChair Preprint 4760

Abstract

 Nanoporous Pt-Ni more specific are synthesized via selective dissolution of Ni attains a more catalytic activity towards oxygen reduction reaction (ORR). With the help of kinetic Monte Carlo simulation, we observed that change in the nanoporous Pt-Ni is separate from the very known Pt high in the first layer of Platinum-Nickel catalytic surface. In the Platinum-Nickel, first layer and second layer both are high in Pt. A less quantity of Ni is stays on the first layer. With help of density functional theory, ORR speeds up several orders because of surface Ni atoms. We considered various Platinum-Nickel configurations in this paper. production of OH is the rate-determining step based on our reports in the ORR. At lower amount of Ni, nanoporous Pt-Ni shows 8 times more ORR than pure Pt catalyst.

Keyphrases: Nanoporous, ORR, density functional theory

@booklet{EasyChair:4760,
  author    = {Venkataramana Imandi and Prafulla Puri and Abhijit Chatterjee},
  title     = {ORR Reactivity of Surface Ni Along with Pt Surface in Pt-Ni Surface},
  howpublished = {EasyChair Preprint 4760},
  year      = {EasyChair, 2020}}