Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons

Kwong Yu Chan, Jiawen Ren, Siu Wa Ting, Jie Ding, Huanting Wang

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

Abstract

A mesoporous carbon structure was template-synthesized from silica nanoparticles with internal M41S type mesopores. The silica template was synthesized according to Suzuki et al. using an ionic surfactant to create the internal mesopores 1.8-3.5 nm diameter and a non-ionic surfactant to limit the overall size of the particle. Larger mesopores in the silica are needed for carbonization to a better structure. This was achieved by the use of a swelling-agent, tri-methylbenzene (TMB). Characterization by transmission electron microscopy (TEM), X-ray diffraction pattern (XRD) and nitrogen sorption analysis showed a mesocellular foam like carbon structure composed of porous cells with internal hexagonally arranged channels. In addition to the 3 nm internal channels, there were larger mesopores connecting the cellular domains. These larger mesopores were formed in the interparticle voids created during carbonization. The dual porosity network structure had a high surface area (> 1000m2/Vg) and large pore volume (> 1.2 mL/g). When loaded with Pt-Ru nanoparticles, the PtRu/carbon became a good electrocatalyst and gave higher activity for methanol oxidation compared to a commercial catalyst.

Original languageEnglish
Title of host publication2007 AIChE Annual Meeting
Number of pages4
Publication statusPublished - 1 Dec 2007
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States of America
Duration: 4 Nov 20079 Nov 2007

Publication series

NameAIChE Annual Meeting, Conference Proceedings

Conference

Conference2007 AIChE Annual Meeting
CountryUnited States of America
CitySalt Lake City, UT
Period4/11/079/11/07

Keywords

  • A. Porous carbon
  • B. Mesophase
  • C. Catalyst support
  • D. Carbonization
  • E. Electrochemical properties

Cite this

Chan, K. Y., Ren, J., Ting, S. W., Ding, J., & Wang, H. (2007). Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons. In 2007 AIChE Annual Meeting (AIChE Annual Meeting, Conference Proceedings).
Chan, Kwong Yu ; Ren, Jiawen ; Ting, Siu Wa ; Ding, Jie ; Wang, Huanting. / Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons. 2007 AIChE Annual Meeting. 2007. (AIChE Annual Meeting, Conference Proceedings).
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abstract = "A mesoporous carbon structure was template-synthesized from silica nanoparticles with internal M41S type mesopores. The silica template was synthesized according to Suzuki et al. using an ionic surfactant to create the internal mesopores 1.8-3.5 nm diameter and a non-ionic surfactant to limit the overall size of the particle. Larger mesopores in the silica are needed for carbonization to a better structure. This was achieved by the use of a swelling-agent, tri-methylbenzene (TMB). Characterization by transmission electron microscopy (TEM), X-ray diffraction pattern (XRD) and nitrogen sorption analysis showed a mesocellular foam like carbon structure composed of porous cells with internal hexagonally arranged channels. In addition to the 3 nm internal channels, there were larger mesopores connecting the cellular domains. These larger mesopores were formed in the interparticle voids created during carbonization. The dual porosity network structure had a high surface area (> 1000m2/Vg) and large pore volume (> 1.2 mL/g). When loaded with Pt-Ru nanoparticles, the PtRu/carbon became a good electrocatalyst and gave higher activity for methanol oxidation compared to a commercial catalyst.",
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Chan, KY, Ren, J, Ting, SW, Ding, J & Wang, H 2007, Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons. in 2007 AIChE Annual Meeting. AIChE Annual Meeting, Conference Proceedings, 2007 AIChE Annual Meeting, Salt Lake City, UT, United States of America, 4/11/07.

Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons. / Chan, Kwong Yu; Ren, Jiawen; Ting, Siu Wa; Ding, Jie; Wang, Huanting.

2007 AIChE Annual Meeting. 2007. (AIChE Annual Meeting, Conference Proceedings).

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

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N2 - A mesoporous carbon structure was template-synthesized from silica nanoparticles with internal M41S type mesopores. The silica template was synthesized according to Suzuki et al. using an ionic surfactant to create the internal mesopores 1.8-3.5 nm diameter and a non-ionic surfactant to limit the overall size of the particle. Larger mesopores in the silica are needed for carbonization to a better structure. This was achieved by the use of a swelling-agent, tri-methylbenzene (TMB). Characterization by transmission electron microscopy (TEM), X-ray diffraction pattern (XRD) and nitrogen sorption analysis showed a mesocellular foam like carbon structure composed of porous cells with internal hexagonally arranged channels. In addition to the 3 nm internal channels, there were larger mesopores connecting the cellular domains. These larger mesopores were formed in the interparticle voids created during carbonization. The dual porosity network structure had a high surface area (> 1000m2/Vg) and large pore volume (> 1.2 mL/g). When loaded with Pt-Ru nanoparticles, the PtRu/carbon became a good electrocatalyst and gave higher activity for methanol oxidation compared to a commercial catalyst.

AB - A mesoporous carbon structure was template-synthesized from silica nanoparticles with internal M41S type mesopores. The silica template was synthesized according to Suzuki et al. using an ionic surfactant to create the internal mesopores 1.8-3.5 nm diameter and a non-ionic surfactant to limit the overall size of the particle. Larger mesopores in the silica are needed for carbonization to a better structure. This was achieved by the use of a swelling-agent, tri-methylbenzene (TMB). Characterization by transmission electron microscopy (TEM), X-ray diffraction pattern (XRD) and nitrogen sorption analysis showed a mesocellular foam like carbon structure composed of porous cells with internal hexagonally arranged channels. In addition to the 3 nm internal channels, there were larger mesopores connecting the cellular domains. These larger mesopores were formed in the interparticle voids created during carbonization. The dual porosity network structure had a high surface area (> 1000m2/Vg) and large pore volume (> 1.2 mL/g). When loaded with Pt-Ru nanoparticles, the PtRu/carbon became a good electrocatalyst and gave higher activity for methanol oxidation compared to a commercial catalyst.

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Chan KY, Ren J, Ting SW, Ding J, Wang H. Methanol oxidation on platinum-ruthenium nanoparticles supported on well defined mesoporous carbons. In 2007 AIChE Annual Meeting. 2007. (AIChE Annual Meeting, Conference Proceedings).