Direct Growth of Highly Strained Pt Islands on Branched Ni Nanoparticles for Improved Hydrogen Evolution Reaction Activity
Date
Authors
Alinezhad, Ali
Gloag, Lucy
Benedetti, Tania M.
Cheong, Soshan
Webster, Richard F.
Roelsgaard, Martin
Iversen, Bo B.
Schuhmann, Wolfgang
Gooding, J. Justin
Tilley, Richard D.
Journal Title
Journal ISSN
Volume Title
Publisher
Access Statement
Abstract
The direct growth of Pt islands on lattice mismatched Ni nanoparticles is a major synthetic challenge and a promising strategy to create highly strained Pt atoms for electrocatalysis. By using very mild reaction conditions, Pt islands with tunable strain were formed directly on Ni branched particles. The highly strained 1.9 nm Pt-island on branched Ni nanoparticles exhibited high specific activity and the highest mass activity for hydrogen evolution (HER) in a pH 13 electrolyte. These results show the ability to synthetically tune the size of the Pt islands to control the strain to give higher HER activity.
Description
Keywords
Citation
Collections
Source
Journal of the American Chemical Society
Type
Book Title
Entity type
Publication