Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells

Jong Gil Oh; Chang Ha Lee; Hansung Kim

doi:10.1016/j.elecom.2007.08.019

Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells

Jong Gil Oh, Chang Ha Lee, Hansung Kim

Department of Chemical and Biomolecular Engineering

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

18 Citations (Scopus)

Abstract

A new procedure has been successfully developed by which PtN_x/C is synthesized to enhance methanol tolerance while maintaining a high catalytic activity for the oxygen-reduction reaction (ORR). The nitrogen-modified Pt surface, which is prepared using a chelating agent followed by heat treatment, exhibits considerable selectivity toward the ORR in the presence of methanol. The high methanol tolerance could be attributed to the suppression of methanol adsorption resulting from the modification of the Pt surface with nitrogen. A direct methanol fuel-cell (DMFC) test showed that a power density of up to 120 m W cm^-2 was generated when PtN_x/C was used as the cathode catalyst (1 mg cm^-2) in 6 M methanol and oxygen at 70 °C.

Original language	English
Pages (from-to)	2629-2632
Number of pages	4
Journal	Electrochemistry Communications
Volume	9
Issue number	10
DOIs	https://doi.org/10.1016/j.elecom.2007.08.019
Publication status	Published - 2007 Oct

Bibliographical note

Funding Information:
This work was supported by Seoul R&BD Program (No. 10659).

All Science Journal Classification (ASJC) codes

Electrochemistry

Access to Document

10.1016/j.elecom.2007.08.019

Fingerprint Dive into the research topics of 'Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells'. Together they form a unique fingerprint.

Cite this

@article{fbff1383a2ef47629c3f2b91a649239f,

title = "Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells",

abstract = "A new procedure has been successfully developed by which PtNx/C is synthesized to enhance methanol tolerance while maintaining a high catalytic activity for the oxygen-reduction reaction (ORR). The nitrogen-modified Pt surface, which is prepared using a chelating agent followed by heat treatment, exhibits considerable selectivity toward the ORR in the presence of methanol. The high methanol tolerance could be attributed to the suppression of methanol adsorption resulting from the modification of the Pt surface with nitrogen. A direct methanol fuel-cell (DMFC) test showed that a power density of up to 120 m W cm-2 was generated when PtNx/C was used as the cathode catalyst (1 mg cm-2) in 6 M methanol and oxygen at 70 °C.",

author = "Oh, {Jong Gil} and Lee, {Chang Ha} and Hansung Kim",

note = "Funding Information: This work was supported by Seoul R&BD Program (No. 10659).",

year = "2007",

month = oct,

doi = "10.1016/j.elecom.2007.08.019",

language = "English",

volume = "9",

pages = "2629--2632",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

number = "10",

}

TY - JOUR

T1 - Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells

AU - Oh, Jong Gil

AU - Lee, Chang Ha

AU - Kim, Hansung

N1 - Funding Information: This work was supported by Seoul R&BD Program (No. 10659).

PY - 2007/10

Y1 - 2007/10

N2 - A new procedure has been successfully developed by which PtNx/C is synthesized to enhance methanol tolerance while maintaining a high catalytic activity for the oxygen-reduction reaction (ORR). The nitrogen-modified Pt surface, which is prepared using a chelating agent followed by heat treatment, exhibits considerable selectivity toward the ORR in the presence of methanol. The high methanol tolerance could be attributed to the suppression of methanol adsorption resulting from the modification of the Pt surface with nitrogen. A direct methanol fuel-cell (DMFC) test showed that a power density of up to 120 m W cm-2 was generated when PtNx/C was used as the cathode catalyst (1 mg cm-2) in 6 M methanol and oxygen at 70 °C.

AB - A new procedure has been successfully developed by which PtNx/C is synthesized to enhance methanol tolerance while maintaining a high catalytic activity for the oxygen-reduction reaction (ORR). The nitrogen-modified Pt surface, which is prepared using a chelating agent followed by heat treatment, exhibits considerable selectivity toward the ORR in the presence of methanol. The high methanol tolerance could be attributed to the suppression of methanol adsorption resulting from the modification of the Pt surface with nitrogen. A direct methanol fuel-cell (DMFC) test showed that a power density of up to 120 m W cm-2 was generated when PtNx/C was used as the cathode catalyst (1 mg cm-2) in 6 M methanol and oxygen at 70 °C.

UR - http://www.scopus.com/inward/record.url?scp=34548640813&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548640813&partnerID=8YFLogxK

U2 - 10.1016/j.elecom.2007.08.019

DO - 10.1016/j.elecom.2007.08.019

M3 - Article

AN - SCOPUS:34548640813

VL - 9

SP - 2629

EP - 2632

JO - Electrochemistry Communications

JF - Electrochemistry Communications

SN - 1388-2481

IS - 10

ER -

Surface modified Pt/C as a methanol tolerant oxygen reduction catalyst for direct methanol fuel cells

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this