Web-like 3D Architecture of Pt Nanowires and Sulfur-Doped Carbon Nanotube with Superior Electrocatalytic Performance

Md Ariful Hoque; Fathy M. Hassan; Altamash M. Jauhar; Gaopeng Jiang; Mark Pritzker; Ja Yeon Choi; Shanna Knights; Siyu Ye; Zhongwei Chen

doi:10.1021/acssuschemeng.7b03580

Web-like 3D Architecture of Pt Nanowires and Sulfur-Doped Carbon Nanotube with Superior Electrocatalytic Performance

Md Ariful Hoque, Fathy M. Hassan, Altamash M. Jauhar, Gaopeng Jiang, Mark Pritzker, Ja Yeon Choi, Shanna Knights, Siyu Ye, Zhongwei Chen

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

52 Citations (Scopus)

Abstract

Development of highly durable electrocatalysts for oxygen reduction reaction (ORR) is critical for proton exchange membrane fuel cells. Herein, we report the synthesis, characterization, and electrochemical performance of 1D sulfur-doped carbon nanotubes (S-CNT) supported 1D Pt nanowires (PtNW/S-CNT). PtNW/S-CNT synthesized by a modified solvothermal method possesses a unique web-like 3D architecture that is beneficial for oxygen reduction. We demonstrate that PtNW/S-CNT exhibits impressive activity retention under potential cycling between 0.05 and 1.5 V vs RHE over 3000 cycles. The reductions in electrochemically active surface area (ECSA, 7% loss) and mass activity (19% loss) of PtNW/S-CNT after accelerated durability testing (ADT) are found to be much lower than the dramatic losses observed with commercial Pt/C (>99% loss in ECSA and mass activity) under identical conditions. The PtNW/S-CNT catalyst also shows very high specific activity (1.61 mA cm^-2) in comparison to Pt/C (0.24 mA cm^-2).

Original language	English
Pages (from-to)	93-98
Number of pages	6
Journal	ACS Sustainable Chemistry and Engineering
Volume	6
Issue number	1
DOIs	https://doi.org/10.1021/acssuschemeng.7b03580
Publication status	Published - Jan 2 2018
Externally published	Yes

Keywords

Carbon nanotubes
Electrocatalyst
Fuel cells
Oxygen reduction reaction
Pt nanowires

ASJC Scopus subject areas

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acssuschemeng.7b03580

Cite this

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title = "Web-like 3D Architecture of Pt Nanowires and Sulfur-Doped Carbon Nanotube with Superior Electrocatalytic Performance",

abstract = "Development of highly durable electrocatalysts for oxygen reduction reaction (ORR) is critical for proton exchange membrane fuel cells. Herein, we report the synthesis, characterization, and electrochemical performance of 1D sulfur-doped carbon nanotubes (S-CNT) supported 1D Pt nanowires (PtNW/S-CNT). PtNW/S-CNT synthesized by a modified solvothermal method possesses a unique web-like 3D architecture that is beneficial for oxygen reduction. We demonstrate that PtNW/S-CNT exhibits impressive activity retention under potential cycling between 0.05 and 1.5 V vs RHE over 3000 cycles. The reductions in electrochemically active surface area (ECSA, 7% loss) and mass activity (19% loss) of PtNW/S-CNT after accelerated durability testing (ADT) are found to be much lower than the dramatic losses observed with commercial Pt/C (>99% loss in ECSA and mass activity) under identical conditions. The PtNW/S-CNT catalyst also shows very high specific activity (1.61 mA cm-2) in comparison to Pt/C (0.24 mA cm-2).",

keywords = "Carbon nanotubes, Electrocatalyst, Fuel cells, Oxygen reduction reaction, Pt nanowires",

author = "Hoque, {Md Ariful} and Hassan, {Fathy M.} and Jauhar, {Altamash M.} and Gaopeng Jiang and Mark Pritzker and Choi, {Ja Yeon} and Shanna Knights and Siyu Ye and Zhongwei Chen",

note = "Funding Information: This research was funded by the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors thank Dr. Andrei Carmen, for TEM and EELS characterizations at the Canadian Center for Electron Microscopy (CCEM) at McMaster University. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2018",

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doi = "10.1021/acssuschemeng.7b03580",

language = "English",

volume = "6",

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journal = "ACS Sustainable Chemistry and Engineering",

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TY - JOUR

T1 - Web-like 3D Architecture of Pt Nanowires and Sulfur-Doped Carbon Nanotube with Superior Electrocatalytic Performance

AU - Hoque, Md Ariful

AU - Hassan, Fathy M.

AU - Jauhar, Altamash M.

AU - Jiang, Gaopeng

AU - Pritzker, Mark

AU - Choi, Ja Yeon

AU - Knights, Shanna

AU - Ye, Siyu

AU - Chen, Zhongwei

N1 - Funding Information: This research was funded by the Natural Sciences and Engineering Research Council of Canada (NSERC). The authors thank Dr. Andrei Carmen, for TEM and EELS characterizations at the Canadian Center for Electron Microscopy (CCEM) at McMaster University. Publisher Copyright: © 2017 American Chemical Society.

PY - 2018/1/2

Y1 - 2018/1/2

N2 - Development of highly durable electrocatalysts for oxygen reduction reaction (ORR) is critical for proton exchange membrane fuel cells. Herein, we report the synthesis, characterization, and electrochemical performance of 1D sulfur-doped carbon nanotubes (S-CNT) supported 1D Pt nanowires (PtNW/S-CNT). PtNW/S-CNT synthesized by a modified solvothermal method possesses a unique web-like 3D architecture that is beneficial for oxygen reduction. We demonstrate that PtNW/S-CNT exhibits impressive activity retention under potential cycling between 0.05 and 1.5 V vs RHE over 3000 cycles. The reductions in electrochemically active surface area (ECSA, 7% loss) and mass activity (19% loss) of PtNW/S-CNT after accelerated durability testing (ADT) are found to be much lower than the dramatic losses observed with commercial Pt/C (>99% loss in ECSA and mass activity) under identical conditions. The PtNW/S-CNT catalyst also shows very high specific activity (1.61 mA cm-2) in comparison to Pt/C (0.24 mA cm-2).

AB - Development of highly durable electrocatalysts for oxygen reduction reaction (ORR) is critical for proton exchange membrane fuel cells. Herein, we report the synthesis, characterization, and electrochemical performance of 1D sulfur-doped carbon nanotubes (S-CNT) supported 1D Pt nanowires (PtNW/S-CNT). PtNW/S-CNT synthesized by a modified solvothermal method possesses a unique web-like 3D architecture that is beneficial for oxygen reduction. We demonstrate that PtNW/S-CNT exhibits impressive activity retention under potential cycling between 0.05 and 1.5 V vs RHE over 3000 cycles. The reductions in electrochemically active surface area (ECSA, 7% loss) and mass activity (19% loss) of PtNW/S-CNT after accelerated durability testing (ADT) are found to be much lower than the dramatic losses observed with commercial Pt/C (>99% loss in ECSA and mass activity) under identical conditions. The PtNW/S-CNT catalyst also shows very high specific activity (1.61 mA cm-2) in comparison to Pt/C (0.24 mA cm-2).

KW - Carbon nanotubes

KW - Electrocatalyst

KW - Fuel cells

KW - Oxygen reduction reaction

KW - Pt nanowires

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Web-like 3D Architecture of Pt Nanowires and Sulfur-Doped Carbon Nanotube with Superior Electrocatalytic Performance

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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