Use of metal clusters in catalysis and for the growth of SWNT

PRES 68

Arne Rosén, arne.rosen@fy.chalmers.se1, Mats Andersson, mats.andersson@fy.chalmers.se1, Kim Bolton, kim@fy.chalmers.se2, and Feng Ding3. (1) Department of Physics, Göteborg University, SE 412 96 Göteborg, Sweden, (2) Department of Chemistry, Physical Chemistry, Goeteborg University, Goeteborg, SE-412 96, Sweden, (3) Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX77005
We have in our group built a laser vaporization set-up, which is used for studies of the reactivity of clusters and catalytic reactions [1]. The cluster beam passes through two reaction cells, where the clusters make a few collisions with the reactive molecules. If we let the clusters collide with both hydrogen and oxygen molecules in separate cells a catalytic reaction of water molecules are formed [2]. We use in another project MD, simulations for studies of metal catalyzed nucleation and growth of SWNT [3] on metal clusters and show that a highly supersaturated carbon concentration in the catalyst cluster is needed to initiate the nucleation process.

1. M. Andersson, J. L. Persson and A. Rosén, J. Phys. Chem. 100, 12222 (1996) 2. M. Andersson and A. Rosén, J. Chem. Phys. 117, 7052 (2002) 3 F. Ding, K. Bolton and A. Rosén, J. Phys. Chem. B, 108, 17369-17377 (2004).

 

SWNTs From Synthesis to Application, From the Lab to the Fab: In Memory of Dr. Richard Smalley
9:00 AM-12:00 PM, Monday, 11 September 2006 Moscone Center -- Room 306, Oral

Presidential Event

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006