Open AccessCarbon Supported Platinum-Molybdenum Alloy Nanoparticles for Oxygen Reduction Reaction
Author(s) -
Natarajan Manivannan,
Vijai Shankar Balachandran,
Vairathevar Sivasamy Vasantha
Publication year - 2021
Publication title -
asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23165
Subject(s) - electrocatalyst , cyclic voltammetry , catalysis , chemistry , rotating disk electrode , molybdenum , platinum , oxygen reduction reaction , alloy , x ray photoelectron spectroscopy , electrochemistry , carbon fibers , chemical engineering , thermal decomposition , nanoparticle , inorganic chemistry , electrode , materials science , organic chemistry , composite material , composite number , engineering
Fuel cells are gaining importance in the emerging area of power generation. However, sluggishness ofthe cathodic oxygen reduction reaction (ORR) and usage of expensive electrocatalysts are hinderingits widespread application. Hence, an effort has been made in the present study to synthesize efficientelectrocatalysts based on Pt-Mo alloys with varying atomic ratios (0-100 at. %) by thermaldecomposition method. The synthesized samples were characterized using XRD, SEM, TEM andXPS techniques. The electrocatalytic activity for ORR was measured using cyclic voltammetry androtating disk electrode for all the samples and Pt-Mo (1:1) electrocatalyst performed better among thesynthesized electrocatalysts with ORR current density of 63 mA/cm2 at an applied potential of 0.6 Vvs. Hg/HgSO4. The present study suggests that Pt-Mo studied are proven to be a superior catalyst thana costly Pt catalyst with high ORR activity.