A novel CNT@SnO2 core-sheath nanocomposite as a stabilizing support for catalysts of proton exchange membrane fuel cells

Chunyu Du; Meng Chen; Xianyi Cao; Geping Yin; Pengfei Shi

doi:10.1016/j.elecom.2008.12.034

A novel CNT@SnO₂ core-sheath nanocomposite as a stabilizing support for catalysts of proton exchange membrane fuel cells

Chunyu Du^*
, Meng Chen
, Xianyi Cao
, Geping Yin
, Pengfei Shi

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Harbin Engineering University

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Mesoporous SnO₂ coated carbon nanotube (CNT) core-sheath nanocomposite, CNT@SnO₂, was prepared by a hydrothermal method and proposed as a catalyst support for proton exchange membrane fuel cells (PEMFCs). The CNT@SnO₂ and its supported Pt catalyst, Pt/(CNT@SnO₂), were characterized by TEM, XRD, cyclic voltammetry, and polarization curves. The CNT@SnO₂ composite showed a much lower anodic current than the CNT, especially at high potentials, indicating the CNT@SnO₂ was more corrosion resistant. The Pt/(CNT@SnO₂) catalyst was electrochemically active and exhibited comparable activity for the oxygen reduction reaction to the CNT supported catalyst (Pt/CNT). More importantly, the long-term stability of the Pt/(CNT@SnO₂) catalyst was significantly higher than that of the Pt/CNT catalyst, which might be mainly due to the fact that the CNT@SnO₂ was more corrosion resistant and mesoporous SnO₂ was beneficial to restrict the Pt migration and aggregation. Consequently, the CNT@SnO₂ would be a promising durable catalyst support for PEMFCs.

Original language	English
Pages (from-to)	496-498
Number of pages	3
Journal	Electrochemistry Communications
Volume	11
Issue number	2
DOIs	https://doi.org/10.1016/j.elecom.2008.12.034
State	Published - Feb 2009
Externally published	Yes

Keywords

Carbon nanotube
Catalyst support
Core-sheath composite
PEMFC
Tin dioxide

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10.1016/j.elecom.2008.12.034

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@article{b200158213ed40a88c62f4270678e509,

title = "A novel CNT@SnO2 core-sheath nanocomposite as a stabilizing support for catalysts of proton exchange membrane fuel cells",

abstract = "Mesoporous SnO2 coated carbon nanotube (CNT) core-sheath nanocomposite, CNT@SnO2, was prepared by a hydrothermal method and proposed as a catalyst support for proton exchange membrane fuel cells (PEMFCs). The CNT@SnO2 and its supported Pt catalyst, Pt/(CNT@SnO2), were characterized by TEM, XRD, cyclic voltammetry, and polarization curves. The CNT@SnO2 composite showed a much lower anodic current than the CNT, especially at high potentials, indicating the CNT@SnO2 was more corrosion resistant. The Pt/(CNT@SnO2) catalyst was electrochemically active and exhibited comparable activity for the oxygen reduction reaction to the CNT supported catalyst (Pt/CNT). More importantly, the long-term stability of the Pt/(CNT@SnO2) catalyst was significantly higher than that of the Pt/CNT catalyst, which might be mainly due to the fact that the CNT@SnO2 was more corrosion resistant and mesoporous SnO2 was beneficial to restrict the Pt migration and aggregation. Consequently, the CNT@SnO2 would be a promising durable catalyst support for PEMFCs.",

keywords = "Carbon nanotube, Catalyst support, Core-sheath composite, PEMFC, Tin dioxide",

author = "Chunyu Du and Meng Chen and Xianyi Cao and Geping Yin and Pengfei Shi",

year = "2009",

month = feb,

doi = "10.1016/j.elecom.2008.12.034",

language = "英语",

volume = "11",

pages = "496--498",

journal = "Electrochemistry Communications",

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TY - JOUR

T1 - A novel CNT@SnO2 core-sheath nanocomposite as a stabilizing support for catalysts of proton exchange membrane fuel cells

AU - Du, Chunyu

AU - Chen, Meng

AU - Cao, Xianyi

AU - Yin, Geping

AU - Shi, Pengfei

PY - 2009/2

Y1 - 2009/2

N2 - Mesoporous SnO2 coated carbon nanotube (CNT) core-sheath nanocomposite, CNT@SnO2, was prepared by a hydrothermal method and proposed as a catalyst support for proton exchange membrane fuel cells (PEMFCs). The CNT@SnO2 and its supported Pt catalyst, Pt/(CNT@SnO2), were characterized by TEM, XRD, cyclic voltammetry, and polarization curves. The CNT@SnO2 composite showed a much lower anodic current than the CNT, especially at high potentials, indicating the CNT@SnO2 was more corrosion resistant. The Pt/(CNT@SnO2) catalyst was electrochemically active and exhibited comparable activity for the oxygen reduction reaction to the CNT supported catalyst (Pt/CNT). More importantly, the long-term stability of the Pt/(CNT@SnO2) catalyst was significantly higher than that of the Pt/CNT catalyst, which might be mainly due to the fact that the CNT@SnO2 was more corrosion resistant and mesoporous SnO2 was beneficial to restrict the Pt migration and aggregation. Consequently, the CNT@SnO2 would be a promising durable catalyst support for PEMFCs.

AB - Mesoporous SnO2 coated carbon nanotube (CNT) core-sheath nanocomposite, CNT@SnO2, was prepared by a hydrothermal method and proposed as a catalyst support for proton exchange membrane fuel cells (PEMFCs). The CNT@SnO2 and its supported Pt catalyst, Pt/(CNT@SnO2), were characterized by TEM, XRD, cyclic voltammetry, and polarization curves. The CNT@SnO2 composite showed a much lower anodic current than the CNT, especially at high potentials, indicating the CNT@SnO2 was more corrosion resistant. The Pt/(CNT@SnO2) catalyst was electrochemically active and exhibited comparable activity for the oxygen reduction reaction to the CNT supported catalyst (Pt/CNT). More importantly, the long-term stability of the Pt/(CNT@SnO2) catalyst was significantly higher than that of the Pt/CNT catalyst, which might be mainly due to the fact that the CNT@SnO2 was more corrosion resistant and mesoporous SnO2 was beneficial to restrict the Pt migration and aggregation. Consequently, the CNT@SnO2 would be a promising durable catalyst support for PEMFCs.

KW - Carbon nanotube

KW - Catalyst support

KW - Core-sheath composite

KW - PEMFC

KW - Tin dioxide

UR - https://www.scopus.com/pages/publications/58549090092

U2 - 10.1016/j.elecom.2008.12.034

DO - 10.1016/j.elecom.2008.12.034

M3 - 文章

AN - SCOPUS:58549090092

SN - 1388-2481

VL - 11

SP - 496

EP - 498

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 2

ER -

A novel CNT@SnO₂ core-sheath nanocomposite as a stabilizing support for catalysts of proton exchange membrane fuel cells

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Keywords

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