Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction

Ji Bong Joo; You Jung Kim; Wooyoung Kim; Nam Dong Kim; Pil Kim; Younghun Kim; Youn Woo Lee; Jongheop Yi

doi:10.1007/s11814-008-0073-7

Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction

Ji Bong Joo
, You Jung Kim
, Wooyoung Kim
, Nam Dong Kim
, Pil Kim
, Younghun Kim
, Youn Woo Lee
, Jongheop Yi^*

^*Corresponding author for this work

Division of Chemical Engineering

Seoul National University
Kwangwoon University

Research output: Contribution to journal › Journal article › peer-review

15 Scopus citations

Abstract

Mesoporous carbon (MC)-supported PtCo catalysts were prepared by a sodium borohydride (NaBH₄) reduction method. To increase the alloy degree of PtCo catalyst, the heat treatment was carried out at various temperatures (300-700°C). The heat-treated PtCo catalysts (PtCo/MC-x) had the higher degrees of Pt-Co alloy than that of as-synthesized PtCo catalyst (PtCo/MC). MC supported-PtCo catalyst (PtCo/MC-500) that was treated at 500°C, had the highest activity and lowest overpotential in oxygen electro-reduction (ORR) among the prepared PtCo catalysts. The high alloy degree and favorable chemical states of PtCo/MC-500 are believed to be responsible for the superior activity in oxygen electroreduction compared to the other PtCo catalysts.

Original language	English
Pages (from-to)	431-436
Number of pages	6
Journal	Korean Journal of Chemical Engineering
Volume	25
Issue number	3
DOIs	https://doi.org/10.1007/s11814-008-0073-7
State	Published - 2008.05

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Electrocatalyst
Fuel cell
Mesoporous carbon
Oxygen reduction
PtCo

Quacquarelli Symonds(QS) Subject Topics

Engineering - Chemical
Chemistry

Access to Document

10.1007/s11814-008-0073-7

Cite this

@article{e4e9dc446c504827a2ad7ff77ee27fef,

title = "Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction",

abstract = "Mesoporous carbon (MC)-supported PtCo catalysts were prepared by a sodium borohydride (NaBH4) reduction method. To increase the alloy degree of PtCo catalyst, the heat treatment was carried out at various temperatures (300-700°C). The heat-treated PtCo catalysts (PtCo/MC-x) had the higher degrees of Pt-Co alloy than that of as-synthesized PtCo catalyst (PtCo/MC). MC supported-PtCo catalyst (PtCo/MC-500) that was treated at 500°C, had the highest activity and lowest overpotential in oxygen electro-reduction (ORR) among the prepared PtCo catalysts. The high alloy degree and favorable chemical states of PtCo/MC-500 are believed to be responsible for the superior activity in oxygen electroreduction compared to the other PtCo catalysts.",

keywords = "Electrocatalyst, Fuel cell, Mesoporous carbon, Oxygen reduction, PtCo",

author = "Joo, \{Ji Bong\} and Kim, \{You Jung\} and Wooyoung Kim and Kim, \{Nam Dong\} and Pil Kim and Younghun Kim and Lee, \{Youn Woo\} and Jongheop Yi",

year = "2008",

month = may,

doi = "10.1007/s11814-008-0073-7",

language = "English",

volume = "25",

pages = "431--436",

journal = "Korean Journal of Chemical Engineering",

issn = "0256-1115",

number = "3",

}

TY - JOUR

T1 - Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction

AU - Joo, Ji Bong

AU - Kim, You Jung

AU - Kim, Wooyoung

AU - Kim, Nam Dong

AU - Kim, Pil

AU - Kim, Younghun

AU - Lee, Youn Woo

AU - Yi, Jongheop

PY - 2008/5

Y1 - 2008/5

N2 - Mesoporous carbon (MC)-supported PtCo catalysts were prepared by a sodium borohydride (NaBH4) reduction method. To increase the alloy degree of PtCo catalyst, the heat treatment was carried out at various temperatures (300-700°C). The heat-treated PtCo catalysts (PtCo/MC-x) had the higher degrees of Pt-Co alloy than that of as-synthesized PtCo catalyst (PtCo/MC). MC supported-PtCo catalyst (PtCo/MC-500) that was treated at 500°C, had the highest activity and lowest overpotential in oxygen electro-reduction (ORR) among the prepared PtCo catalysts. The high alloy degree and favorable chemical states of PtCo/MC-500 are believed to be responsible for the superior activity in oxygen electroreduction compared to the other PtCo catalysts.

AB - Mesoporous carbon (MC)-supported PtCo catalysts were prepared by a sodium borohydride (NaBH4) reduction method. To increase the alloy degree of PtCo catalyst, the heat treatment was carried out at various temperatures (300-700°C). The heat-treated PtCo catalysts (PtCo/MC-x) had the higher degrees of Pt-Co alloy than that of as-synthesized PtCo catalyst (PtCo/MC). MC supported-PtCo catalyst (PtCo/MC-500) that was treated at 500°C, had the highest activity and lowest overpotential in oxygen electro-reduction (ORR) among the prepared PtCo catalysts. The high alloy degree and favorable chemical states of PtCo/MC-500 are believed to be responsible for the superior activity in oxygen electroreduction compared to the other PtCo catalysts.

KW - Electrocatalyst

KW - Fuel cell

KW - Mesoporous carbon

KW - Oxygen reduction

KW - PtCo

UR - https://www.scopus.com/pages/publications/46749128919

U2 - 10.1007/s11814-008-0073-7

DO - 10.1007/s11814-008-0073-7

M3 - Journal article

AN - SCOPUS:46749128919

SN - 0256-1115

VL - 25

SP - 431

EP - 436

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

IS - 3

ER -

Preparation of Pt-Co catalysts on mesoporous carbon and effect of alloying on catalytic activity in oxygen electro-reduction

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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