Experimental Study of the Oscillatory Behavior of Co Oxidation on Pt/A1203 by in Situ Infrared Transmission Spectroscopy PDF Download
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Author: Tore H. Lindstrom
Publisher:
ISBN:
Category : Carbon monoxide
Languages : en
Pages : 156
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Book Description
Author: Tore H. Lindstrom
Publisher:
ISBN:
Category : Carbon monoxide
Languages : en
Pages : 156
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Book Description
Author: Abdulhafied E. Elhaderi
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 366
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Author:
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ISBN:
Category : Engineering
Languages : en
Pages : 778
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Author: Attila Farkas
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Author: Veronica A. Burrows
Publisher:
ISBN:
Category :
Languages : en
Pages : 244
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Author: Katsumi Tanaka
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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Book Description
Carbon monoxide adsorption experiments were studied on reduced and oxidized Pt/Ti02 with Ft-IR. On reduced samples two kinds of linear CO species were observed and assigned as adsorption on Pt close-packed (terrace) sites 1/2094 cm. In addition a bridged CO species was found at 1/1854 cm. Both linear species show increasing frequencies with coverage. Saturation CO uptake decreases with increasing substrate reduction temperature and there is a preferential decrease of linear CO CO species on terrace sites and the concentration of bridged species lies below detection limits. On oxidized Pt/Ti02 samples, some Pt atoms are covered with oxygen atoms and the density of step sites is enhanced. (Author).
Author:
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Category :
Languages : en
Pages :
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Book Description
In-situ studies of CO adsorption by surface x-ray scattering (SXS) and Fourier transform infrared (FTIR) spectroscopy techniques are used to create the link between the macroscopic kinetic rates of CO oxidation and the microscopic level of understanding the structure/site occupancy of CO on Pt(111). A remarkable difference in activity was observed between alkaline and acid solutions. In alkaline solution the oxidation of CO proceeds at low overpotential (
Author: P. R. Norton
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Category : Aeronautics
Languages : en
Pages : 612
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Author: Michele R. Derrick
Publisher: Getty Publications
ISBN: 0892364696
Category : Art
Languages : en
Pages : 252
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Book Description
This book provides practical information on the use of infrared (IR) spectroscopy for the analysis of materials found in cultural objects. Designed for scientists and students in the fields of archaeology, art conservation, microscopy, forensics, chemistry, and optics, the book discusses techniques for examining the microscopic amounts of complex, aged components in objects such as paintings, sculptures, and archaeological fragments. Chapters include the history of infrared spectroscopy, the basic parameters of infrared absorption theory, IR instrumentation, analysis methods, sample collection and preparation, and spectra interpretation. The authors cite several case studies, such as examinations of Chumash Indian paints and the Dead Sea Scrolls. The Institute’s Tools for Conservation series provides practical scientific procedures and methodologies for the practice of conservation. The series is specifically directed to conservation scientists, conservators, and technical experts in related fields.
