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Sayed Reza Hosseini-zavvarmahalleh

Sayed Reza Hosseini-zavvarmahalleh

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Faculty of Chemistry
Address: Nanochemistry Research Laboratory, Faculty of Chemistry, University of Mazandaran, Postal Code: 47416-95447, Babolsar, Iran
Phone: 01135302361

Research

Title
Bimetallic Cu-Pt/nanoporous carbon composite as an efficient catalyst for methanol oxidation
Type
JournalPaper
Keywords
Electrocatalysis; MOF-derived nanoporous carbons; MOF-199; Galvanic replacement reaction; Methanol electrooxidation
Year
2018
Journal Journal of the Iranian Chemical Society
DOI
Researchers Sakineh Mandegarzad ، Jahan Bakhsh Raoof ، Sayed Reza Hosseini-zavvarmahalleh ، Reza Ojani

Abstract

A novel bimetallic Cu-Pt nanoparticles supported onto Cu/indirectly carbonized nanoporous carbon composite (Cu-Pt/ICNPCC) was prepared through a two-step process: first, carbonization of furfuryl alcohol-infiltrated MOF-199 (metal-organic framework Cu3(BTC)2 [BTC = 1,3,5-benzene tricarboxylate]), without removing the Cu metal with HF aqueous solution. Second, the partial galvanic replacement reaction (GRR) of Cu nanoparticles by PtIV upon immersion in a platinum(IV) chloride solution. The synthesized materials characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy (EDS) and electrochemical methods. The EDS result revealed that part of Cu nanoparticles have been substituted by Pt nanoparticles after GRR. The methanol oxidation at the surface of Cu-Pt/ICNPCC was investigated by cyclic voltammetry method in 0.5 M H2SO4 and indicated good electro-catalytic activity towards methanol oxidation (Ep = 0.85 V vs. NHE and jf= 1.00 mA/cm2). It is suggested that this improvement is attributed to the effect of proper Cu/ICNPCC for fine dispersion, efficient adhesion and prevention of Pt coalescing.