Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation

Mathew M Maye, Jin Luo, Wai Ben Chan, Li Han, Nancy Kariuki, H. Richard Naslund, Mark H. Engelhard, Yuehe Lin, Randoll Sze, Chuan Jian Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper describes the results of an investigation of the structure and composition of core-shell gold and alloy nanoparticles as catalytically active nanomaterials for potential fuel cell catalysis. Centered on the electrocatalytic methanol oxidation, we show three sets of results based on electrochemical, surface, and composition characterizations. First, electrochemical studies have revealed that the nanostructured catalysts are active towards the electrooxidation of methanol and carbon monoxide. Second, X-ray photoelectron spectroscopy (XPS) data have shown that the organic encapsulating shells can be effectively removed electrochemically or thermally, which involves the formation of oxides on the nanocrystals. Thirdly, direct current plasma - atomic emission spectrometry (DCP-AES) has revealed insights for the correlation of the composition of alloy nanoparticles with the catalytic activities. Implications of these results to the design of nanostructured catalysts will also be discussed.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsP. Knauth, J.M. Tarascon, E. Traversa, H. Tuller
Pages391-396
Number of pages6
Volume756
StatePublished - 2003
Externally publishedYes
EventSolid State Ionics 2002 - Boston MA, United States
Duration: Dec 2 2002Dec 5 2002

Other

OtherSolid State Ionics 2002
CountryUnited States
CityBoston MA
Period12/2/0212/5/02

Fingerprint

Electrooxidation
Methanol
Nanoparticles
Catalysts
Chemical analysis
Shells (structures)
Gold Alloys
Gold alloys
Carbon Monoxide
Nanostructured materials
Carbon monoxide
Nanocrystals
Oxides
Spectrometry
Catalysis
Fuel cells
Catalyst activity
X ray photoelectron spectroscopy
Gold
Plasmas

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Maye, M. M., Luo, J., Chan, W. B., Han, L., Kariuki, N., Naslund, H. R., ... Zhong, C. J. (2003). Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation. In P. Knauth, J. M. Tarascon, E. Traversa, & H. Tuller (Eds.), Materials Research Society Symposium - Proceedings (Vol. 756, pp. 391-396)

Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation. / Maye, Mathew M; Luo, Jin; Chan, Wai Ben; Han, Li; Kariuki, Nancy; Naslund, H. Richard; Engelhard, Mark H.; Lin, Yuehe; Sze, Randoll; Zhong, Chuan Jian.

Materials Research Society Symposium - Proceedings. ed. / P. Knauth; J.M. Tarascon; E. Traversa; H. Tuller. Vol. 756 2003. p. 391-396.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maye, MM, Luo, J, Chan, WB, Han, L, Kariuki, N, Naslund, HR, Engelhard, MH, Lin, Y, Sze, R & Zhong, CJ 2003, Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation. in P Knauth, JM Tarascon, E Traversa & H Tuller (eds), Materials Research Society Symposium - Proceedings. vol. 756, pp. 391-396, Solid State Ionics 2002, Boston MA, United States, 12/2/02.
Maye MM, Luo J, Chan WB, Han L, Kariuki N, Naslund HR et al. Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation. In Knauth P, Tarascon JM, Traversa E, Tuller H, editors, Materials Research Society Symposium - Proceedings. Vol. 756. 2003. p. 391-396
Maye, Mathew M ; Luo, Jin ; Chan, Wai Ben ; Han, Li ; Kariuki, Nancy ; Naslund, H. Richard ; Engelhard, Mark H. ; Lin, Yuehe ; Sze, Randoll ; Zhong, Chuan Jian. / Characterizations of core-shell nanoparticle catalysts for methanol electrooxidation. Materials Research Society Symposium - Proceedings. editor / P. Knauth ; J.M. Tarascon ; E. Traversa ; H. Tuller. Vol. 756 2003. pp. 391-396
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