Metal Nanoclusters in Zeolite Nanocages: Synthesis and Characterization by X-Ray Photoelectron Spectroscopy.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030279" target="_blank" >RIV/61388955:_____/03:54030279 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Metal Nanoclusters in Zeolite Nanocages: Synthesis and Characterization by X-Ray Photoelectron Spectroscopy.

Original language description

Rhodium and palladium nanoparticles were prepared in zeolites X and Y from ion exchanged metal ammine complexes by thermal decomposition of the complexes. X-ray photoelectron spectroscopy was employed to characterize individual steps of decomposition andgrowth of metal nanoparticles. Substantial reduction of Pd-tetraammine complex in zeolites by X-ray irradiation leading to inward diffusion of Pd and production of highly dispersed metal has been observed. Autoreduction by heating up to 400 oC resultedin significant decrease of Rh surface concentration and less pronounced decrease of Pd surface concentration. The Pd metal autoreduction occured readily in Y zeolite yielding small nanoclusters of Pd. The shifts of the core level binding energy of metal3d electrons observed for thermally reduced metals in zeolites were consistent with presence of highly dispersed Rh metal and/or Rh+ and indicated interaction of Pd nanoparticles with zeolite matrix.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

International Conference NANO ''03. Proceedings.

ISBN

—

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

39-44

Publisher name

University of Technology

Place of publication

Brno

Event location

Brno [CZ]

Event date

Jan 21, 2003

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—