Electrocatalytic Properties of Rh/C and Pt-Rh/C Catalysts Fabricated by the Method of Electrochemical Dispersion
- Authors: Faddeev N.A.1, Kuriganova A.B.1, Leont′ev I.N.2, Smirnova N.V.1
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Affiliations:
- Platov South-Russian State Polytechnic University (NPI)
- Southern Federal University
- Issue: Vol 55, No 4 (2019)
- Pages: 346-350
- Section: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/192088
- DOI: https://doi.org/10.1134/S1023193519030066
- ID: 192088
Cite item
Abstract
The Pt/C, Rh/C, and Pt-Rh/C catalytic systems with uniform distribution of metal phase over the surface of carbon support and an average size of Pt and Rh nanoparticles of 7.3 and 6.5 nm, respectively, are fabricated by the method of electrochemical dispersion of metals in the aqueous electrolytes containing Na+. It is shown that the double-layer potential E = 300 mV (RHE) is the optimal potential of CO adsorption for determining the electrochemically active surface area of Pt/C, Rh/C, and Pt-Rh/C catalysts by the method of oxidative desorption of CO. The introduction of Rh into the Pt/C catalyst enables us to increase the specific activity and reduce the potential of the onset of methanol oxidation.
Keywords
About the authors
N. A. Faddeev
Platov South-Russian State Polytechnic University (NPI)
Email: smirnova_nv@mail.ru
Russian Federation, Novocherkassk, Rostov oblast, 346428
A. B. Kuriganova
Platov South-Russian State Polytechnic University (NPI)
Author for correspondence.
Email: kuriganova_@mail.ru
Russian Federation, Novocherkassk, Rostov oblast, 346428
I. N. Leont′ev
Southern Federal University
Email: smirnova_nv@mail.ru
Russian Federation, Rostov-on-Don, 344090
N. V. Smirnova
Platov South-Russian State Polytechnic University (NPI)
Author for correspondence.
Email: smirnova_nv@mail.ru
Russian Federation, Novocherkassk, Rostov oblast, 346428