Enhancement of electrochemical stability and catalytic activity of Pt nanoparticles via strong metal-support interaction with sulfur-containing ordered mesoporous carbon

Kyungjung Kwon; Seon Ah Jin; Chanho Pak; Hyuk Chang; Sang Hoon Joo; Hyung Ik Lee; Jin Hoe Kim; Ji Man Kim

doi:10.1016/j.cattod.2010.10.030

Enhancement of electrochemical stability and catalytic activity of Pt nanoparticles via strong metal-support interaction with sulfur-containing ordered mesoporous carbon

Kyungjung Kwon, Seon Ah Jin, Chanho Pak, Hyuk Chang, Sang Hoon Joo, Hyung Ik Lee, Jin Hoe Kim, Ji Man Kim

Department of Chemistry

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

42 Scopus citations

Abstract

Pt nanoparticles on sulfur-containing ordered mesoporous carbon (Pt/S-OMC) are obtained with 3 nm in size and 60 wt.% loading. XPS analysis shows that there is a strong metal-support interaction between Pt nanoparticles and S atoms embedded on the OMC support. This strong metal-support interaction fastens Pt nanoparticles upon the support and alters the electronic state of Pt from Pt⁰ of bulk Pt to a slightly charged state of Pt^δ+. These features result in an improvement both in electrochemical stability and oxygen reduction reaction kinetics compared to Pt/OMC where the OMC does not have sulfur atoms. The approach of tuning the electronic state and the interaction of Pt on carbon supports by embedding heterogeneous atoms into the OMC can effectively improve the stability and catalytic activity of Pt nanoparticles.

Original language	English
Pages (from-to)	186-189
Number of pages	4
Journal	Catalysis Today
Volume	164
Issue number	1
DOIs	https://doi.org/10.1016/j.cattod.2010.10.030
State	Published - 30 Apr 2011

Keywords

Ordered mesoporous carbon
Oxygen reduction
Pt nanoparticle
Stability
Strong metal-support interaction
Sulfur

UN SDGs

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

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10.1016/j.cattod.2010.10.030

Cite this

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title = "Enhancement of electrochemical stability and catalytic activity of Pt nanoparticles via strong metal-support interaction with sulfur-containing ordered mesoporous carbon",

abstract = "Pt nanoparticles on sulfur-containing ordered mesoporous carbon (Pt/S-OMC) are obtained with 3 nm in size and 60 wt.\% loading. XPS analysis shows that there is a strong metal-support interaction between Pt nanoparticles and S atoms embedded on the OMC support. This strong metal-support interaction fastens Pt nanoparticles upon the support and alters the electronic state of Pt from Pt0 of bulk Pt to a slightly charged state of Ptδ+. These features result in an improvement both in electrochemical stability and oxygen reduction reaction kinetics compared to Pt/OMC where the OMC does not have sulfur atoms. The approach of tuning the electronic state and the interaction of Pt on carbon supports by embedding heterogeneous atoms into the OMC can effectively improve the stability and catalytic activity of Pt nanoparticles.",

keywords = "Ordered mesoporous carbon, Oxygen reduction, Pt nanoparticle, Stability, Strong metal-support interaction, Sulfur",

author = "Kyungjung Kwon and Jin, \{Seon Ah\} and Chanho Pak and Hyuk Chang and Joo, \{Sang Hoon\} and Lee, \{Hyung Ik\} and Kim, \{Jin Hoe\} and Kim, \{Ji Man\}",

year = "2011",

month = apr,

day = "30",

doi = "10.1016/j.cattod.2010.10.030",

language = "English",

volume = "164",

pages = "186--189",

journal = "Catalysis Today",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Enhancement of electrochemical stability and catalytic activity of Pt nanoparticles via strong metal-support interaction with sulfur-containing ordered mesoporous carbon

AU - Kwon, Kyungjung

AU - Jin, Seon Ah

AU - Pak, Chanho

AU - Chang, Hyuk

AU - Joo, Sang Hoon

AU - Lee, Hyung Ik

AU - Kim, Jin Hoe

AU - Kim, Ji Man

PY - 2011/4/30

Y1 - 2011/4/30

N2 - Pt nanoparticles on sulfur-containing ordered mesoporous carbon (Pt/S-OMC) are obtained with 3 nm in size and 60 wt.% loading. XPS analysis shows that there is a strong metal-support interaction between Pt nanoparticles and S atoms embedded on the OMC support. This strong metal-support interaction fastens Pt nanoparticles upon the support and alters the electronic state of Pt from Pt0 of bulk Pt to a slightly charged state of Ptδ+. These features result in an improvement both in electrochemical stability and oxygen reduction reaction kinetics compared to Pt/OMC where the OMC does not have sulfur atoms. The approach of tuning the electronic state and the interaction of Pt on carbon supports by embedding heterogeneous atoms into the OMC can effectively improve the stability and catalytic activity of Pt nanoparticles.

AB - Pt nanoparticles on sulfur-containing ordered mesoporous carbon (Pt/S-OMC) are obtained with 3 nm in size and 60 wt.% loading. XPS analysis shows that there is a strong metal-support interaction between Pt nanoparticles and S atoms embedded on the OMC support. This strong metal-support interaction fastens Pt nanoparticles upon the support and alters the electronic state of Pt from Pt0 of bulk Pt to a slightly charged state of Ptδ+. These features result in an improvement both in electrochemical stability and oxygen reduction reaction kinetics compared to Pt/OMC where the OMC does not have sulfur atoms. The approach of tuning the electronic state and the interaction of Pt on carbon supports by embedding heterogeneous atoms into the OMC can effectively improve the stability and catalytic activity of Pt nanoparticles.

KW - Ordered mesoporous carbon

KW - Oxygen reduction

KW - Pt nanoparticle

KW - Stability

KW - Strong metal-support interaction

KW - Sulfur

UR - https://www.scopus.com/pages/publications/79955063832

U2 - 10.1016/j.cattod.2010.10.030

DO - 10.1016/j.cattod.2010.10.030

M3 - Article

AN - SCOPUS:79955063832

SN - 0920-5861

VL - 164

SP - 186

EP - 189

JO - Catalysis Today

JF - Catalysis Today

IS - 1

ER -

Enhancement of electrochemical stability and catalytic activity of Pt nanoparticles via strong metal-support interaction with sulfur-containing ordered mesoporous carbon

Abstract

Keywords

UN SDGs

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