Electrocatalytic Properties of Rh/C and Pt-Rh/C Catalysts Fabricated by the Method of Electrochemical Dispersion
- 作者: Faddeev N.1, Kuriganova A.1, Leont′ev I.2, Smirnova N.1
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隶属关系:
- Platov South-Russian State Polytechnic University (NPI)
- Southern Federal University
- 期: 卷 55, 编号 4 (2019)
- 页面: 346-350
- 栏目: Short Communications
- URL: https://journals.rcsi.science/1023-1935/article/view/192088
- DOI: https://doi.org/10.1134/S1023193519030066
- ID: 192088
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详细
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.
作者简介
N. Faddeev
Platov South-Russian State Polytechnic University (NPI)
Email: smirnova_nv@mail.ru
俄罗斯联邦, Novocherkassk, Rostov oblast, 346428
A. Kuriganova
Platov South-Russian State Polytechnic University (NPI)
编辑信件的主要联系方式.
Email: kuriganova_@mail.ru
俄罗斯联邦, Novocherkassk, Rostov oblast, 346428
I. Leont′ev
Southern Federal University
Email: smirnova_nv@mail.ru
俄罗斯联邦, Rostov-on-Don, 344090
N. Smirnova
Platov South-Russian State Polytechnic University (NPI)
编辑信件的主要联系方式.
Email: smirnova_nv@mail.ru
俄罗斯联邦, Novocherkassk, Rostov oblast, 346428