Bimetallic Pt–Ru covalently bonded on carbon nanotubes for efficient methanol oxidation

Ting Zhang; Wanzong Wang; Zheng Ma; Lei Bai; Yue Yao; Dongqing Xu

doi:10.1007/s12613-023-2699-1

Volume 30 Issue 9

Sep. 2023

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2023 > 30(9): 1816-1823

Ting Zhang, Wanzong Wang, Zheng Ma, Lei Bai, Yue Yao, and Dongqing Xu, Bimetallic Pt–Ru covalently bonded on carbon nanotubes for efficient methanol oxidation, Int. J. Miner. Metall. Mater., 30(2023), No. 9, pp. 1816-1823. https://doi.org/10.1007/s12613-023-2699-1

Cite this article as:

Ting Zhang, Wanzong Wang, Zheng Ma, Lei Bai, Yue Yao, and Dongqing Xu, Bimetallic Pt–Ru covalently bonded on carbon nanotubes for efficient methanol oxidation, Int. J. Miner. Metall. Mater., 30(2023), No. 9, pp. 1816-1823. https://doi.org/10.1007/s12613-023-2699-1

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Research Article

Bimetallic Pt–Ru covalently bonded on carbon nanotubes for efficient methanol oxidation

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Corresponding author:
Dongqing Xu E-mail: xudongq@163.com
Received: 15 March 2023; Revised: 27 June 2023; Accepted: 28 June 2023; Available online: 30 June 2023

Abstract

Abstract

Platinum-based nanocomposites have been considered as one of the most promising catalysts for methanol oxidation reactions (MORs), which yet still suffer from low electrochemical activity and electron-transfer properties. Apart from van-der-Waals heterostructures, herein, we report a novel nanocomposite with the structure of Pt–Ru bimetallic nanoparticles covalently-bonded onto multi-walled carbon nanotubes (MWCNTs) (Pt–Ru@MWCNT), which have been successfully fabricated via a facile and green synthesis method. It is demonstrated that the Pt–Ru@MWCNT nanocomposite possesses much enhanced electrocatalytic activity with the electrochemical active surface area (ECSA) of 110.4 m²·g⁻¹ for Pt towards MOR, which is 2.67 and 4.0 times higher than those of 20wt% commercial Pt@C and Pt-based nanocomposite prepared by other method, due to the improved electron-transfer properties originated from M–O–C covalent bonds. This work provides us a new strategy for the structural design of highly-efficient electrocatalysts in boosting MOR performance.
- bimetallic Pt–Ru nanocomposite;
- high loaded;
- functionalized multi-walled carbon nanotubes;
- methanol oxidation;
- green hydrothermal synthesis

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