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Zn-enriched PtZn nanoparticle electrocatalysts synthesized by solution combustion for ethanol oxidation reaction in an alkaline medium

Published online by Cambridge University Press:  17 April 2018

Md. Abdul Matin ,
Anand Kumar Open the ORCID record for Anand Kumar [Opens in a new window] ,
Mohammed Ali H. Saleh Saad ,
Mohammed J. Al-Marri  and
Sergey Suslov
Md. Abdul Matin
Affiliation:
Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar
Anand Kumar*
Affiliation:
Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar
Mohammed Ali H. Saleh Saad
Affiliation:
Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar
Mohammed J. Al-Marri
Affiliation:
Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar
Sergey Suslov
Affiliation:
Qatar Environmental and Energy Research Institute (QEERI), HBKU, Qatar Foundation, Doha, Qatar
*
Address all correspondence to Anand Kumar at [email protected]
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Abstract

This work focuses on the syntheses of Zn-enriched PtZn nanoparticle electrocatalysts by solution combustion for ethanol oxidation reaction (EOR). Analytical techniques of x-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy, TEM/scanning TEM-energy dispersive x-ray spectroscopy, and x-ray photoelectron spectroscopy are used for the characterization of electrocatalysts. Cyclic voltammetry and chronoamperometry are applied for the electrocatalysis of C2H5OH and stability test in an alkaline medium, respectively. Electrochemical data show that PtZn/C has improved electrocatalytic activity by ~2.3 times compared with commercial Pt/C, in addition to having earlier onset potential and better stability for EOR. The variation of fuel amount in the synthesis has affected crystallite sizes, electronic, and electrochemical properties in electrocatalysts.

Type
Research Letters
Information
MRS Communications , Volume 8 , Issue 2 , June 2018 , pp. 411 - 419
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Copyright
Copyright © Materials Research Society 2018 

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