Premium
Chemical‐Reaction‐Induced Hot Electron Flows on Platinum Colloid Nanoparticles under Hydrogen Oxidation: Impact of Nanoparticle Size
Author(s) -
Lee Hyosun,
Nedrygailov Ievgen I.,
Lee Changhwan,
Somorjai Gabor A.,
Park Jeong Young
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201410951
Subject(s) - platinum nanoparticles , nanoparticle , catalysis , platinum , electron transfer , materials science , electron , chemical engineering , hydrogen , yield (engineering) , chemistry , nanotechnology , photochemistry , organic chemistry , composite material , physics , quantum mechanics , engineering
Generation of hot electron flows and the catalytic activity of Pt nanoparticles (NPs) with different sizes were investigated using catalytic nanodiodes. We show that smaller Pt NPs lead to higher chemicurrent yield, which is associated with the shorter travel length for the hot electrons, compared with their inelastic mean free path. We also show the impact of capping on charge carrier transfer between Pt NPs and their support.