Colloids and Surfaces A 538 (2018) 429–442 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Research paper Preparation of bimetallic alloyed palladium-nickel electro-catalysts supported on carbon with superior catalytic performance towards oxygen reduction reaction a a,b, Fereshteh Dehghani Sanij , Hussein Gharibi Department of Chemistry, Faculty of Science, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran Department of Material Science & Engineering, 122 S Campus Drive, University of Utah, Salt Lake City, UT 84112, United States GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Bimetallic alloyed palladium-nickel electro-catalysts supported on carbon (Vulcan XC-72) with various Pd to Ni Electro-catalyst atomic ratios have been successfully synthesized by an impregnation technique for the oxygen reduction reaction Pd-Ni alloys (ORR). The electro-catalysts are structurally characterized by XRD, FESEM-EDX, ICP-OES, TEM, and XPS. The Nanoparticle EDX and mapping images conﬁrm that Pd and Ni elements have been uniformly dispersed in the Pd Ni /C. TEM 8 2 Oxygen reduction reaction images illustrate that the metallic nanoparticles have been considerably distributed on the substrate with low Koutecky-Levich analysis agglomeration. Cyclic voltammetry (CV), rotating disk electrode (RDE), and chronoamperometry (CA) are ap- Passive direct methanol fuel cell plied to specify
Colloids and Surfaces A: Physicochemical and Engineering Aspects – Elsevier
Published: Feb 5, 2018
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