Preparation of a carbon-supported pt-ni bimetallic catalyst with a Pt-rich shell using a dopamine as protective coating

Youngick Cho; Woong Hee Lee; Hansung Kim

doi:10.1149/2.0511702jes

Preparation of a carbon-supported pt-ni bimetallic catalyst with a Pt-rich shell using a dopamine as protective coating

Youngick Cho, Woong Hee Lee, Hansung Kim

Department of Chemical and Biomolecular Engineering

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

9 Citations (Scopus)

Abstract

A carbon-supported Pt₂Ni₁ catalyst with a Pt rich shell was prepared using a high temperature treatment. In this process, polydopamine (PDA) encapsulates whole Pt/C and acts as a protective coating layer to suppress sintering effects of particles during the high temperature treatment. Dopamine, a mussel-inspired substrate, is an effective surface coating material because the polymerization of dopamine takes place easily at room temperature and exhibits a strong adhesive function with almost any surface. With increasing thickness of the PDA coating layer, the particle size became smaller following heat-treatment. However, when excess PDA was used, residue remained on the surface of catalyst. As a result, the active surface area of catalyst was reduced, thereby resulting in lowered catalytic performance. The Pt₂Ni₁/C catalyst prepared with an optimized amount of PDA layer exhibited improved mass activity of 0.43 A mg_Pt⁻¹ at 0.9 V, which is almost two times higher than that of Pt/C.

Original language	English
Pages (from-to)	F65-F70
Journal	Journal of the Electrochemical Society
Volume	164
Issue number	2
DOIs	https://doi.org/10.1149/2.0511702jes
Publication status	Published - 2017

Bibliographical note

Funding Information:
This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and modelling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005).

Funding Information:
This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and mod-elling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005).

Publisher Copyright:
© 2016 The Electrochemical Society. All rights reserved.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

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

Access to Document

10.1149/2.0511702jes

Cite this

@article{04725b79b9cf406a8347091f28344fd2,

title = "Preparation of a carbon-supported pt-ni bimetallic catalyst with a Pt-rich shell using a dopamine as protective coating",

abstract = "A carbon-supported Pt2Ni1 catalyst with a Pt rich shell was prepared using a high temperature treatment. In this process, polydopamine (PDA) encapsulates whole Pt/C and acts as a protective coating layer to suppress sintering effects of particles during the high temperature treatment. Dopamine, a mussel-inspired substrate, is an effective surface coating material because the polymerization of dopamine takes place easily at room temperature and exhibits a strong adhesive function with almost any surface. With increasing thickness of the PDA coating layer, the particle size became smaller following heat-treatment. However, when excess PDA was used, residue remained on the surface of catalyst. As a result, the active surface area of catalyst was reduced, thereby resulting in lowered catalytic performance. The Pt2Ni1/C catalyst prepared with an optimized amount of PDA layer exhibited improved mass activity of 0.43 A mgPt−1 at 0.9 V, which is almost two times higher than that of Pt/C.",

author = "Youngick Cho and Lee, {Woong Hee} and Hansung Kim",

note = "Funding Information: This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and modelling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005). Funding Information: This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and mod-elling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005). Publisher Copyright: {\textcopyright} 2016 The Electrochemical Society. All rights reserved.",

year = "2017",

doi = "10.1149/2.0511702jes",

language = "English",

volume = "164",

pages = "F65--F70",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Electrochemical Society, Inc.",

number = "2",

}

TY - JOUR

T1 - Preparation of a carbon-supported pt-ni bimetallic catalyst with a Pt-rich shell using a dopamine as protective coating

AU - Cho, Youngick

AU - Lee, Woong Hee

AU - Kim, Hansung

N1 - Funding Information: This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and modelling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005). Funding Information: This material is based upon work supported by the Ministry of Trade, Industry and Energy (MOTIE, Korea) under the Industrial Technology Innovation Program. No.10062511, “Design and mod-elling of Gas Diffusion layer and Bipolar plate integrated Porous electrode structure for high power in hydrogen fuel cell vehicle”, and the Priority Research Centers Program through the National Research Foundation of Korea (2009-0093823), and the Yonsei University Research Fund(Post Doc. Researcher Supporting Program) of 2016 (Project No.: 2016-12-0005). Publisher Copyright: © 2016 The Electrochemical Society. All rights reserved.

PY - 2017

Y1 - 2017

N2 - A carbon-supported Pt2Ni1 catalyst with a Pt rich shell was prepared using a high temperature treatment. In this process, polydopamine (PDA) encapsulates whole Pt/C and acts as a protective coating layer to suppress sintering effects of particles during the high temperature treatment. Dopamine, a mussel-inspired substrate, is an effective surface coating material because the polymerization of dopamine takes place easily at room temperature and exhibits a strong adhesive function with almost any surface. With increasing thickness of the PDA coating layer, the particle size became smaller following heat-treatment. However, when excess PDA was used, residue remained on the surface of catalyst. As a result, the active surface area of catalyst was reduced, thereby resulting in lowered catalytic performance. The Pt2Ni1/C catalyst prepared with an optimized amount of PDA layer exhibited improved mass activity of 0.43 A mgPt−1 at 0.9 V, which is almost two times higher than that of Pt/C.

AB - A carbon-supported Pt2Ni1 catalyst with a Pt rich shell was prepared using a high temperature treatment. In this process, polydopamine (PDA) encapsulates whole Pt/C and acts as a protective coating layer to suppress sintering effects of particles during the high temperature treatment. Dopamine, a mussel-inspired substrate, is an effective surface coating material because the polymerization of dopamine takes place easily at room temperature and exhibits a strong adhesive function with almost any surface. With increasing thickness of the PDA coating layer, the particle size became smaller following heat-treatment. However, when excess PDA was used, residue remained on the surface of catalyst. As a result, the active surface area of catalyst was reduced, thereby resulting in lowered catalytic performance. The Pt2Ni1/C catalyst prepared with an optimized amount of PDA layer exhibited improved mass activity of 0.43 A mgPt−1 at 0.9 V, which is almost two times higher than that of Pt/C.

UR - http://www.scopus.com/inward/record.url?scp=85038005579&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038005579&partnerID=8YFLogxK

U2 - 10.1149/2.0511702jes

DO - 10.1149/2.0511702jes

M3 - Article

AN - SCOPUS:85038005579

VL - 164

SP - F65-F70

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 2

ER -

Preparation of a carbon-supported pt-ni bimetallic catalyst with a Pt-rich shell using a dopamine as protective coating

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this