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Trimetallic PtCoFe Alloy Monolayer Superlattices as Bifunctional Oxygen‐Reduction and Ethanol‐Oxidation Electrocatalysts
Author(s) -
Sial Muhammad Aurang Zeb Gul,
Lin Haifeng,
Zulfiqar Muhammad,
Ullah Shaheed,
Ni Bing,
Wang Xun
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201700250
Subject(s) - monolayer , materials science , bifunctional , nanoparticle , alloy , formamide , superlattice , ammonium bromide , catalysis , chemical engineering , solvent , inorganic chemistry , bromide , nanotechnology , chemistry , organic chemistry , metallurgy , pulmonary surfactant , optoelectronics , engineering
A synthesis strategy for the preparation of trimetallic PtCoFe alloy nanoparticle superlattices is reported. Trimetallic PtCoFe alloy monolayer array of nanoparticle superlattices with a large density of high index facets and platinum‐rich surface are successfully prepared by coreduction of metal precursors in formamide solvent. The concentration of cetyl trimethyl ammonium bromide plays a vital role for the formation of a monolayer array of nanoparticle superlattices, while the size of nanoparticles is determined by NaI. The prepared monolayer array of nanoparticle superlattices is the superior catalyst for oxygen reduction reaction as well as for ethanol oxidation owing to their specific structural and compositional characteristics.