Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Gold catalysts, deposition-precipitation synthesis

Two synthesis methods were applied to prepare the TS-1 supports (TS-1 a and TS-lb). It was found that, after deposition of Au by precipitation method HDP-II, TS-1 a was a good catalyst, whereas catalyst TS-lb was totally inactive. In Figs. 1.15(a) and (b), TEM pictures of the Au-TS-1 samples are shown. The morphology of the two samples is quite different. TS-1 a consisted of very small crystallites (10 nm), agglomerated to form 150 nm particles, whereas TS-lb consisted of 35 pm crystals. The size of the gold particles in the TS-1 a sample with the small crystallites, was estimated to be 3-15 nm, which is not significantly smaller than those observed on the edges... [Pg.27]


See other pages where Gold catalysts, deposition-precipitation synthesis is mentioned: [Pg.253]    [Pg.252]    [Pg.168]    [Pg.22]    [Pg.225]    [Pg.153]    [Pg.88]    [Pg.10]    [Pg.231]    [Pg.506]    [Pg.509]    [Pg.71]    [Pg.322]   
See also in sourсe #XX -- [ Pg.333 , Pg.334 ]




SEARCH



Catalyst deposits

Catalysts precipitation

Deposition-precipitation

Deposition-precipitation synthesis, supported gold catalysts, preparation

Gold catalysts

Gold deposition

Gold deposits

Gold synthesis

Synthesis precipitation

© 2024 chempedia.info