期刊
TOPICS IN CATALYSIS
卷 39, 期 3-4, 页码 161-166出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-006-0052-3
关键词
laser vaporization; gold clusters; cluster structure; molecular beam; size selection; soft-landing; supported clusters; surface coverage; sintering; thermal stability; heat treatment; agglomeration; oxide support; alumina; silica; SiO2; Al2O3; support effect; grazing incidence small angle X-ray scattering; 2-dimensional growth; 3-dimensional growth; hydrogen atmosphere; aggregation; ALD film; GISAXS; isomerization
This contribution is devoted to Study of the thermal stability and growth of gold nanoparticles supported oil SiO2/Si(111) and Al2O3/SiO2/Si(111) as a function of initial cluster size, support material and level of surface coverage. Experimental evidence for flipping of two dimensional cluster structures from vertical orientation to horizontal on the support is presented.
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