Preparation of ordered mesoporous carbons containing well-dispersed and highly alloying Pt-Co bimetallic nanoparticles toward methanol-resistant oxygen reduction reaction

Shou Heng Liu; Feng Sheng Zheng; Jyun Ren Wu

doi:10.1016/j.apcatb.2011.08.011

Preparation of ordered mesoporous carbons containing well-dispersed and highly alloying Pt-Co bimetallic nanoparticles toward methanol-resistant oxygen reduction reaction

Shou Heng Liu, Feng Sheng Zheng, Jyun Ren Wu

Department of Environmental Engineering

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

55 Citations (Scopus)

Abstract

A simple route is described for the synthesis of well-dispersed and highly alloying PtCo bifunctional nanoparticles supported on ordered mesoporous carbons (Pt_100-xCo_x/OMC) by the simultaneous pyrolysis of carbon and metal precursors in a mesoporous silica as the hard template. A variety of different spectroscopic and analytical techniques was used to thoroughly characterize the Pt_100-xCo_x/OMC samples. By X-ray diffraction, N₂ adsorption/desorption isotherms and transmission electron microscopy, it was found that Pt_100-xCo_x/OMC possessed well-dispersed Pt/PtCo nanoparticles (2-3nm) supported on high surface area (~1000m²g^-1) and regular pore channels (~2.8nm). Among Pt_100-xCo_x/OMC catalysts, the Pt₅₀Co₅₀/OMC was found to have superior electrocatalytic activity and the tolerance to methanol crossover during oxygen reduction reaction as compared to typical commercial electrocatalysts. This may be attributed to the dispersion and unique nanostructure of highly alloyed PtCo nanoparticles supported on Pt₅₀Co₅₀/OMC evidenced by X-ray absorption spectroscopy.

Original language	English
Pages (from-to)	81-89
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	108-109
DOIs	https://doi.org/10.1016/j.apcatb.2011.08.011
Publication status	Published - 2011 Oct 11

All Science Journal Classification (ASJC) codes

Catalysis
General Environmental Science
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2011.08.011

Cite this

@article{539a6bd1bdea4b4fbf9a1eaf35e09b0c,

title = "Preparation of ordered mesoporous carbons containing well-dispersed and highly alloying Pt-Co bimetallic nanoparticles toward methanol-resistant oxygen reduction reaction",

abstract = "A simple route is described for the synthesis of well-dispersed and highly alloying PtCo bifunctional nanoparticles supported on ordered mesoporous carbons (Pt100-xCox/OMC) by the simultaneous pyrolysis of carbon and metal precursors in a mesoporous silica as the hard template. A variety of different spectroscopic and analytical techniques was used to thoroughly characterize the Pt100-xCox/OMC samples. By X-ray diffraction, N2 adsorption/desorption isotherms and transmission electron microscopy, it was found that Pt100-xCox/OMC possessed well-dispersed Pt/PtCo nanoparticles (2-3nm) supported on high surface area (~1000m2g-1) and regular pore channels (~2.8nm). Among Pt100-xCox/OMC catalysts, the Pt50Co50/OMC was found to have superior electrocatalytic activity and the tolerance to methanol crossover during oxygen reduction reaction as compared to typical commercial electrocatalysts. This may be attributed to the dispersion and unique nanostructure of highly alloyed PtCo nanoparticles supported on Pt50Co50/OMC evidenced by X-ray absorption spectroscopy.",

author = "Liu, {Shou Heng} and Zheng, {Feng Sheng} and Wu, {Jyun Ren}",

note = "Funding Information: The support of this work by the National Science Council, Taiwan ( NSC 99-2221-E-151-044-MY2 and 99-2221-E-151-023-MY2 ) is gratefully acknowledged. The authors wish to thank Mr. Ding-Goa Liu and Dr. Jyh-Fu Lee (National Synchrotron Radiation Research Center, Taiwan) for their assistance and helpful discussions on the X-ray absorption measurements. ",

year = "2011",

month = oct,

day = "11",

doi = "10.1016/j.apcatb.2011.08.011",

language = "English",

volume = "108-109",

pages = "81--89",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Preparation of ordered mesoporous carbons containing well-dispersed and highly alloying Pt-Co bimetallic nanoparticles toward methanol-resistant oxygen reduction reaction

AU - Liu, Shou Heng

AU - Zheng, Feng Sheng

AU - Wu, Jyun Ren

N1 - Funding Information: The support of this work by the National Science Council, Taiwan ( NSC 99-2221-E-151-044-MY2 and 99-2221-E-151-023-MY2 ) is gratefully acknowledged. The authors wish to thank Mr. Ding-Goa Liu and Dr. Jyh-Fu Lee (National Synchrotron Radiation Research Center, Taiwan) for their assistance and helpful discussions on the X-ray absorption measurements.

PY - 2011/10/11

Y1 - 2011/10/11

N2 - A simple route is described for the synthesis of well-dispersed and highly alloying PtCo bifunctional nanoparticles supported on ordered mesoporous carbons (Pt100-xCox/OMC) by the simultaneous pyrolysis of carbon and metal precursors in a mesoporous silica as the hard template. A variety of different spectroscopic and analytical techniques was used to thoroughly characterize the Pt100-xCox/OMC samples. By X-ray diffraction, N2 adsorption/desorption isotherms and transmission electron microscopy, it was found that Pt100-xCox/OMC possessed well-dispersed Pt/PtCo nanoparticles (2-3nm) supported on high surface area (~1000m2g-1) and regular pore channels (~2.8nm). Among Pt100-xCox/OMC catalysts, the Pt50Co50/OMC was found to have superior electrocatalytic activity and the tolerance to methanol crossover during oxygen reduction reaction as compared to typical commercial electrocatalysts. This may be attributed to the dispersion and unique nanostructure of highly alloyed PtCo nanoparticles supported on Pt50Co50/OMC evidenced by X-ray absorption spectroscopy.

AB - A simple route is described for the synthesis of well-dispersed and highly alloying PtCo bifunctional nanoparticles supported on ordered mesoporous carbons (Pt100-xCox/OMC) by the simultaneous pyrolysis of carbon and metal precursors in a mesoporous silica as the hard template. A variety of different spectroscopic and analytical techniques was used to thoroughly characterize the Pt100-xCox/OMC samples. By X-ray diffraction, N2 adsorption/desorption isotherms and transmission electron microscopy, it was found that Pt100-xCox/OMC possessed well-dispersed Pt/PtCo nanoparticles (2-3nm) supported on high surface area (~1000m2g-1) and regular pore channels (~2.8nm). Among Pt100-xCox/OMC catalysts, the Pt50Co50/OMC was found to have superior electrocatalytic activity and the tolerance to methanol crossover during oxygen reduction reaction as compared to typical commercial electrocatalysts. This may be attributed to the dispersion and unique nanostructure of highly alloyed PtCo nanoparticles supported on Pt50Co50/OMC evidenced by X-ray absorption spectroscopy.

UR - http://www.scopus.com/inward/record.url?scp=80053104747&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053104747&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2011.08.011

DO - 10.1016/j.apcatb.2011.08.011

M3 - Article

AN - SCOPUS:80053104747

SN - 0926-3373

VL - 108-109

SP - 81

EP - 89

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Preparation of ordered mesoporous carbons containing well-dispersed and highly alloying Pt-Co bimetallic nanoparticles toward methanol-resistant oxygen reduction reaction

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this