TY - JOUR
T1 - Facile fabrication of nanoparticles in the nanospace of ultrathin TiO 2-gel films
T2 - Self-Organized Processes in Semiconductor Heteroepitaxy
AU - He, Junhui
AU - Kunitake, Toyoki
PY - 2003/1/1
Y1 - 2003/1/1
N2 - In this article, we present in-situ synthesis of nanoparticles of various compositions and morphologies in the nanospace of ultrathin TiO2-gel films using low temperature H2 and O2 plasmas as reductant and oxidant, respectively. Parameters that influence the formation of nanoparticles were investigated and discussed. Reversible chemical transformation was found to give monodisperse nanoparticles. Catalytic activities of Pd monometallic and Ag-core/Pd-shell bimetallic nanoparticles were tested for hydrogenation of methyl acrylate. The much enhanced catalytic activity is attributed mainly to a large ratio of the surface Pd atoms.
AB - In this article, we present in-situ synthesis of nanoparticles of various compositions and morphologies in the nanospace of ultrathin TiO2-gel films using low temperature H2 and O2 plasmas as reductant and oxidant, respectively. Parameters that influence the formation of nanoparticles were investigated and discussed. Reversible chemical transformation was found to give monodisperse nanoparticles. Catalytic activities of Pd monometallic and Ag-core/Pd-shell bimetallic nanoparticles were tested for hydrogenation of methyl acrylate. The much enhanced catalytic activity is attributed mainly to a large ratio of the surface Pd atoms.
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U2 - 10.1557/proc-794-t3.6
DO - 10.1557/proc-794-t3.6
M3 - Conference article
AN - SCOPUS:2942653029
VL - 794
SP - 23
EP - 28
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
SN - 0272-9172
Y2 - 1 December 2003 through 5 December 2003
ER -