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Title: Characterization of Pt particle interaction with L-zeolite by x-ray absorption spectroscopy: Binding energy shifts, x-ray absorption near-edge structure, and extended x-ray absorption fine structure

Abstract

The authors have used x-ray absorption to measure the binding energy, x-ray absorption near-edge structure (XANES), and extended x-ray absorption fine structure (EXAFS) of Pt particles in L-zeolite saturated with H{sub 2} at room temperature and after desorption of H{sub 2} in He. The desorption of H{sub 2} causes the particles to disorder or perhaps breakup such that the coherence required for EXAFS is lost. The shift (with respect to bulk metal) of the binding energy of the Pt in the zeolite, not stabilized by chemisorbed H{sub 2}, suggests an interaction with the zeolite support (and may reflect electronic charge transfer to the Pt).

Authors:
; ;  [1]
  1. Yale Univ., New Haven, CT (USA)
Publication Date:
OSTI Identifier:
6246693
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry; (USA)
Additional Journal Information:
Journal Volume: 94:24; Journal ID: ISSN 0022-3654
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; HYDROGEN; CHEMISORPTION; ZEOLITES; SORPTIVE PROPERTIES; BINDING ENERGY; EXPERIMENTAL DATA; FINE STRUCTURE; MEASURING METHODS; MEDIUM TEMPERATURE; PLATINUM; X-RAY SPECTROSCOPY; CHEMICAL REACTIONS; DATA; ELEMENTS; ENERGY; INFORMATION; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; METALS; MINERALS; NONMETALS; NUMERICAL DATA; PLATINUM METALS; SEPARATION PROCESSES; SORPTION; SPECTROSCOPY; SURFACE PROPERTIES; TRANSITION ELEMENTS; 020400* - Petroleum- Processing; 400201 - Chemical & Physicochemical Properties

Citation Formats

McHugh, B J, Larsen, G, and Haller, G L. Characterization of Pt particle interaction with L-zeolite by x-ray absorption spectroscopy: Binding energy shifts, x-ray absorption near-edge structure, and extended x-ray absorption fine structure. United States: N. p., 1990. Web. doi:10.1021/j100387a001.
McHugh, B J, Larsen, G, & Haller, G L. Characterization of Pt particle interaction with L-zeolite by x-ray absorption spectroscopy: Binding energy shifts, x-ray absorption near-edge structure, and extended x-ray absorption fine structure. United States. https://doi.org/10.1021/j100387a001
McHugh, B J, Larsen, G, and Haller, G L. Thu . "Characterization of Pt particle interaction with L-zeolite by x-ray absorption spectroscopy: Binding energy shifts, x-ray absorption near-edge structure, and extended x-ray absorption fine structure". United States. https://doi.org/10.1021/j100387a001.
@article{osti_6246693,
title = {Characterization of Pt particle interaction with L-zeolite by x-ray absorption spectroscopy: Binding energy shifts, x-ray absorption near-edge structure, and extended x-ray absorption fine structure},
author = {McHugh, B J and Larsen, G and Haller, G L},
abstractNote = {The authors have used x-ray absorption to measure the binding energy, x-ray absorption near-edge structure (XANES), and extended x-ray absorption fine structure (EXAFS) of Pt particles in L-zeolite saturated with H{sub 2} at room temperature and after desorption of H{sub 2} in He. The desorption of H{sub 2} causes the particles to disorder or perhaps breakup such that the coherence required for EXAFS is lost. The shift (with respect to bulk metal) of the binding energy of the Pt in the zeolite, not stabilized by chemisorbed H{sub 2}, suggests an interaction with the zeolite support (and may reflect electronic charge transfer to the Pt).},
doi = {10.1021/j100387a001},
url = {https://www.osti.gov/biblio/6246693}, journal = {Journal of Physical Chemistry; (USA)},
issn = {0022-3654},
number = ,
volume = 94:24,
place = {United States},
year = {1990},
month = {11}
}