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Random Alloyed versus Intermetallic Nanoparticles: A Comparison of Electrocatalytic Performance
Author(s) -
Gamler Jocelyn T. L.,
Ashberry Hannah M.,
Skrabalak Sara E.,
Koczkur Kallum M.
Publication year - 2018
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201801563
Subject(s) - intermetallic , bimetallic strip , nanomaterial based catalyst , electrocatalyst , materials science , nanoparticle , alloy , catalysis , mischmetal , formic acid , methanol , chemical engineering , metal , nanotechnology , electrochemistry , metallurgy , electrode , chemistry , hydrogen storage , organic chemistry , engineering
As synthetic methods advance for metal nanoparticles, more rigorous studies of structure–function relationships can be made. Many electrocatalytic processes depend on the size, shape, and composition of the nanocatalysts. Here, the properties and electrocatalytic behavior of random alloyed and intermetallic nanoparticles are compared. Beginning with an introduction of metallic nanoparticles for catalysis and the unique features of bimetallic compositions, the discussion transitions to case studies of nanoscale electrocatalysts where direct comparisons of alloy and intermetallic compositions are undertaken for methanol electrooxidation, formic acid electrooxidation, the oxygen reduction reaction, and the electroreduction of carbon dioxide (CO 2 ). Design and synthesis strategies for random alloyed and intermetallic nanoparticles are discussed, with an emphasis on Pt–M and Cu–M compositions as model systems. The differences in catalytic performance between alloys and intermetallic nanoparticles are highlighted in order to provide an outlook for future electrocatalyst design.