TY - GEN
T1 - Understanding CO adsorption and oxidation on silica-supported Au, Pt, and alloyed nanoparticle catalysts
AU - Mott, Derrick Michael
AU - Jacobs, David
AU - Galkowski, Jeffrey
AU - Luo, Jin
AU - Zhong, Chuan Jian
PY - 2007/12/31
Y1 - 2007/12/31
N2 - The understanding of the surface properties versus bulk properties of supported metal and alloy nanoparticle catalysts is essential for exploiting their unique properties for applications in hydrogen storage, fuel cells and sensors. This poster shows the recent findings of an investigation of CO adsorption and oxidation on SiO2-supported Au, Pt and AuPt nanoparticles with controlled sizes (2-5 nm) and alloy compositions, which were prepared by molecular encapsulation and thermal treatment. CO adsorption was characterized using an FTIR technique, whereas CO oxidation was monitored using a fixed bed setup with gas chromatographic detection. The surface and bulk properties of the nanoparticles were also studied using XRD, TEM, and electrochemical techniques. The results revealed some initial insights into the understanding of the relationship between the catalytic activity and the surface characteristics of the metal and alloy nanoparticles. Implications of the findings to the design of nanostructured catalysts are also discussed.
AB - The understanding of the surface properties versus bulk properties of supported metal and alloy nanoparticle catalysts is essential for exploiting their unique properties for applications in hydrogen storage, fuel cells and sensors. This poster shows the recent findings of an investigation of CO adsorption and oxidation on SiO2-supported Au, Pt and AuPt nanoparticles with controlled sizes (2-5 nm) and alloy compositions, which were prepared by molecular encapsulation and thermal treatment. CO adsorption was characterized using an FTIR technique, whereas CO oxidation was monitored using a fixed bed setup with gas chromatographic detection. The surface and bulk properties of the nanoparticles were also studied using XRD, TEM, and electrochemical techniques. The results revealed some initial insights into the understanding of the relationship between the catalytic activity and the surface characteristics of the metal and alloy nanoparticles. Implications of the findings to the design of nanostructured catalysts are also discussed.
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M3 - Conference contribution
AN - SCOPUS:37349003769
SN - 0841269556
SN - 9780841269552
T3 - ACS National Meeting Book of Abstracts
BT - 234th ACS National Meeting, Abstracts of Scientific Papers
T2 - 234th ACS National Meeting
Y2 - 19 August 2007 through 23 August 2007
ER -