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Selective Reduction Sites on Commercial Graphite Foil for Building Multimetallic Nano‐Assemblies for Energy Conversion
Author(s) -
Pandey Rakesh K.,
Teraji Satoshi,
Soh Siowling,
Nakanishi Hideyuki
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003185
Subject(s) - alloy , materials science , graphite , bimetallic strip , galvanic cell , nanostructure , foil method , ternary operation , catalysis , chemical engineering , reducing agent , ternary alloy , nanotechnology , environmentally friendly , metallurgy , composite material , chemistry , organic chemistry , ecology , engineering , computer science , metal , biology , programming language
Selective reduction sites are important for systematically building alloy nanostructure assemblies on various substrates. Utilizing a galvanic exchange protocol, in the present study, multimetallic alloy‐type nanostructures were developed on selective reduction sites, which were found to exist on the edges of a commercial graphite foil. Notably, the evaluated method is environmentally friendly and involves sustainable techniques. It was determined that a ternary alloy nanostructure on graphite, consisting of Au, Pd, and Ni, exhibits superior catalytic activity toward ethanol electro‐oxidation reaction in an alkaline medium in comparison to the corresponding unimetallic or bimetallic alloy nanostructures. Correspondingly, a bimetallic Fe and Ni‐based alloy material on graphite was shown to display improved oxygen evolution reaction response.