Effect of surface modification of mesoporous carbon supports on the electrochemical activity of fuel cells

Soo Jin Park; Byung Ju Kim; Seul Yi Lee

doi:10.1016/j.jcis.2013.04.009

Effect of surface modification of mesoporous carbon supports on the electrochemical activity of fuel cells

Soo Jin Park
, Byung Ju Kim
, Seul Yi Lee

Korea Institute of Energy Research
Inha University

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Mesoporous carbon (MC) was prepared from mesoporous silica (SBA-15) via a conventional templating method for use as a Pt-Ru catalyst support in fuel cells. The effect of surface modifications of the carbon support at different pH on the electrochemical activities of the Pt-Ru/MC catalysts was investigated. The Pt-Ru nanoparticle size and loading were dependent on the surface characteristics of the MC. Base-modified MC-supported Pt-Ru showed the smallest average nanoparticle size (3.3. nm) and the highest loading (77%) among the chemically modified MC-supported Pt-Ru catalysts. The electrochemical activity of the catalysts was enhanced when the MC supports were treated with basic or neutral agents rather than by acid modification.

langue originale	Anglais
Pages (de - à)	150-156
Nombre de pages	7
journal	Journal of Colloid and Interface Science
Volume	405
Les DOIs	https://doi.org/10.1016/j.jcis.2013.04.009
état	Publié - 1 sept. 2013
Modification externe	Oui

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10.1016/j.jcis.2013.04.009

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title = "Effect of surface modification of mesoporous carbon supports on the electrochemical activity of fuel cells",

abstract = "Mesoporous carbon (MC) was prepared from mesoporous silica (SBA-15) via a conventional templating method for use as a Pt-Ru catalyst support in fuel cells. The effect of surface modifications of the carbon support at different pH on the electrochemical activities of the Pt-Ru/MC catalysts was investigated. The Pt-Ru nanoparticle size and loading were dependent on the surface characteristics of the MC. Base-modified MC-supported Pt-Ru showed the smallest average nanoparticle size (3.3. nm) and the highest loading (77\%) among the chemically modified MC-supported Pt-Ru catalysts. The electrochemical activity of the catalysts was enhanced when the MC supports were treated with basic or neutral agents rather than by acid modification.",

keywords = "Electrochemical activity, Mesoporous carbon, Pt-Ru catalyst, Surface modification",

author = "Park, \{Soo Jin\} and Kim, \{Byung Ju\} and Lee, \{Seul Yi\}",

year = "2013",

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doi = "10.1016/j.jcis.2013.04.009",

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T1 - Effect of surface modification of mesoporous carbon supports on the electrochemical activity of fuel cells

AU - Park, Soo Jin

AU - Kim, Byung Ju

AU - Lee, Seul Yi

PY - 2013/9/1

Y1 - 2013/9/1

N2 - Mesoporous carbon (MC) was prepared from mesoporous silica (SBA-15) via a conventional templating method for use as a Pt-Ru catalyst support in fuel cells. The effect of surface modifications of the carbon support at different pH on the electrochemical activities of the Pt-Ru/MC catalysts was investigated. The Pt-Ru nanoparticle size and loading were dependent on the surface characteristics of the MC. Base-modified MC-supported Pt-Ru showed the smallest average nanoparticle size (3.3. nm) and the highest loading (77%) among the chemically modified MC-supported Pt-Ru catalysts. The electrochemical activity of the catalysts was enhanced when the MC supports were treated with basic or neutral agents rather than by acid modification.

AB - Mesoporous carbon (MC) was prepared from mesoporous silica (SBA-15) via a conventional templating method for use as a Pt-Ru catalyst support in fuel cells. The effect of surface modifications of the carbon support at different pH on the electrochemical activities of the Pt-Ru/MC catalysts was investigated. The Pt-Ru nanoparticle size and loading were dependent on the surface characteristics of the MC. Base-modified MC-supported Pt-Ru showed the smallest average nanoparticle size (3.3. nm) and the highest loading (77%) among the chemically modified MC-supported Pt-Ru catalysts. The electrochemical activity of the catalysts was enhanced when the MC supports were treated with basic or neutral agents rather than by acid modification.

KW - Electrochemical activity

KW - Mesoporous carbon

KW - Pt-Ru catalyst

KW - Surface modification

UR - https://www.scopus.com/pages/publications/84879550192

U2 - 10.1016/j.jcis.2013.04.009

DO - 10.1016/j.jcis.2013.04.009

M3 - Article

AN - SCOPUS:84879550192

SN - 0021-9797

VL - 405

SP - 150

EP - 156

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

ER -

Effect of surface modification of mesoporous carbon supports on the electrochemical activity of fuel cells

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