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Component-controlled synthesis of PdxSny nanocrystals on carbon nanotubes as advanced electrocatalysts for oxygen reduction reaction.
Guo, Weibin; Yang, Rui; Fan, Jiayao; Xiang, Xing; Du, Xuehui; Shi, Naien; Bao, Jianchun; Han, Min.
Afiliação
  • Guo W; Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University Fuzhou 350117 P. R. China ifeneshi@fjnu.edu.cn.
  • Yang R; Jiangsu Key Laboratory of New Power Batteries, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 P. R. China 07203@njnu.edu.cn.
  • Fan J; Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts & Telecommunications Nanjing 210023 P. R. China.
  • Xiang X; Jiangsu Key Laboratory of New Power Batteries, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 P. R. China 07203@njnu.edu.cn.
  • Du X; Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University Fuzhou 350117 P. R. China ifeneshi@fjnu.edu.cn.
  • Shi N; Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University Fuzhou 350117 P. R. China ifeneshi@fjnu.edu.cn.
  • Bao J; Fujian Cross Strait Institute of Flexible Electronics (Future Technologies), Fujian Normal University Fuzhou 350117 P. R. China ifeneshi@fjnu.edu.cn.
  • Han M; Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts & Telecommunications Nanjing 210023 P. R. China.
RSC Adv ; 14(2): 771-778, 2024 Jan 02.
Article em En | MEDLINE | ID: mdl-38174283
ABSTRACT
Pd-based bimetallic or multimetallic nanocrystals are considered to be potential electrocatalysts for cathodic oxygen reduction reaction (ORR) in fuel cells. Although much advance has been made, the synthesis of component-controlled Pd-Sn alloy nanocrystals or corresponding nanohybrids is still challenging, and the electrocatalytic ORR properties are not fully explored. Herein, component-controlled synthesis of PdxSny nanocrystals (including Pd3Sn, Pd2Sn, Pd3Sn2, and PdSn) has been realized, which are in situ grown or deposited on pre-treated multi-walled carbon nanotubes (CNTs) to form well-coupled nanohybrids (NHs) by a facile one-pot non-hydrolytic system thermolysis method. In alkaline media, all the resultant PdxSny/CNTs NHs are effective at catalyzing ORR. Among them, the Pd3Sn/CNTs NHs exhibit the best catalytic activity with the half-wave potential of 0.85 V (vs. RHE), good cyclic stability, and excellent methanol-tolerant capability due to the suited Pd-Sn alloy component and its strong interaction or efficient electronic coupling with CNTs. This work is conducive to the advancement of Pd-based nanoalloy catalysts by combining component engineering and a hybridization strategy and promoting their application in clean energy devices.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: RSC Adv Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: RSC Adv Ano de publicação: 2024 Tipo de documento: Article
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