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Supported nanoparticles, modified

Some Applications of Supported Nanoparticles Modified by Organometallics 117... [Pg.117]

We summarize here only the laboratory results obtained in this area of supported or unsupported nanoparticles modified by organometallic compounds. We... [Pg.117]

A modified zeolite was used to support Pt particles derived from the cluster anions [PtsIGOIgl ( = 4-6). Mesoporous channels (2.7 and 4.7 nm pore size) of FSM-16 were modified with Ti02 or zirconia by the impregnation and hydrolysis of Ti or Zr alkoxides with subsequent calcination. The Pt carbonyl cluster anions were synthesized within the modified FSM-16 by the reaction of H2PtCl6 with CO and water, and then characterized by IR and UV-VIS spectroscopies. Pyrolysis under vacuum at 573 K gave supported nanoparticles, which were more active for CO hydrogenation and more selective for C2-C3 alkanes than the unmodified Pt/FSM-16 catalyst. [Pg.767]

Zehl G, Schmithals G, Hoell A, Haas S, Hartnig C, Dorbandt 1, Bogdanoff P, Fiechter S (2007) On the structure of carbon-supported selenium-modified ruthenium nanoparticles as electrocatalysts for oxygen reduction in fuel cells. Angew Chem hit Ed 46 7311-7314... [Pg.563]

Zaikovskii VI, Nagabhushana KS, Kriventsov VV, Loponov KN, Cherepanova SV, Kvon RI, Bdnnemann H, Kochubey DI, Savinova ER (2006) Synthesis and structural characterization of Se-modified carbon-supported Ru nanoparticles for the oxygen reduction reaction. J Phys ChemB 110 6881-6890... [Pg.343]

Metal oxides of variable oxidation state as supports or support modifiers [202] are well known in gold catalysis. In the previous section we have already indicated some metal-support interactions influencing the electronic state of gold nanoparticles as well as the metallic or ionic state of gold. Of the numerous literatures we have to mention Haruta and Date [169], Bond [195], as well as Goodman works [186,203]. Further results can be found on the iron oxide system in recent literatures [162,204]. [Pg.100]

Xin and co-workers modified the alkaline EG synthesis method by heating the metal hydroxides or oxides colloidal particles in EG or EG/water mixture in the presence of carbon supports, for preparing various metal and alloy nanoclusters supported on carbon [20-24]. It was found that the ratio of water to EG in the reaction media was a key factor influencing the average size and size distribution of metal nanoparticles supported on the carbon supports. As shown in Table 2, in the preparation of multiwalled carbon nanotube-supported Pt catalysts... [Pg.331]

Lanova B, Wang H, Baltruschat H. 2006. Methanol oxidation on carbon supported Pt and Ru-modified Pt nanoparticles A comparison with single crystal and polycrystaUine electrodes. Euel Cells 3/4 214-224. [Pg.459]

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