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NbPt 3 Intermetallic Nanoparticles: Highly Stable and CO‐Tolerant Electrocatalyst for Fuel Oxidation
Author(s) -
Ramesh Gubbala V.,
Kodiyath Rajesh,
Tanabe Toyokazu,
Manikandan Maidhily,
Fujita Takeshi,
Matsumoto Futoshi,
Ishihara Shinsuke,
Ueda Shigenori,
Yamashita Yoshiyuki,
Ariga Katsuhiko,
Abe Hideki
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201300240
Subject(s) - catalysis , electrocatalyst , nanoparticle , chemistry , electrochemistry , niobium , intermetallic , platinum , inorganic chemistry , anhydrous , formic acid , adsorption , nuclear chemistry , materials science , alloy , electrode , nanotechnology , organic chemistry
NbPt 3 intermetallic nanoparticles (NbPt 3 NPs) are synthesized for the first time, and their electrocatalytic performance towards fuel oxidation is tested. Chemical reduction of dichloro(1,5‐cyclooctadiene)platinum(II) and niobium(V) pentachloride in dry diglyme with a superhydride, followed by annealing, yields the desired NbPt 3 NPs. These NbPt 3 NPs exhibit higher stability than pure Pt NPs during repeated electrochemical cycles in H 2 SO 4 . The NbPt 3 NPs are less susceptible to CO adsorption compared with Pt NPs and exhibit improved catalytic activity towards the electrooxidation of ethanol and/or formic acid. These NbPt 3 NPs are promising candidates as electrode catalysts in fuel cells.