Journal ArticleDOI
Characterization of iridium catalyst surfaces by gas chemisorption
Reads0
Chats0
TLDR
In this article, the surface area, mesoporosities, and pore-size distribution of iridium oxides were determined by low-temperature physical adsorption of nitrogen and by mercury penetration measurements.About:
This article is published in Journal of Colloid and Interface Science.The article was published on 1970-11-01. It has received 27 citations till now. The article focuses on the topics: Iridium & Chemisorption.read more
Citations
More filters
Journal ArticleDOI
Identification of the active complex for CO oxidation over single-atom Ir-on-MgAl 2 O 4 catalysts
Yubing Lu,Jiamin Wang,Liang Yu,Libor Kovarik,Xiwen Zhang,Adam S. Hoffman,Alessandro Gallo,Alessandro Gallo,Simon R. Bare,Dimosthenis Sokaras,Thomas Kroll,Vanessa Lebarbier Dagle,Hongliang Xin,Ayman M. Karim +13 more
TL;DR: In this article, the authors used in situ infrared spectroscopy, operando X-ray and quantum chemical calculations to identify the active single-atom complex as well as the resting state of the Ir/MgAl2O4 catalysts during low-temperature CO oxidation.
Journal ArticleDOI
Chemisorption properties of iridium on alumina catalysts
TL;DR: In this article, the average crystallite sizes calculated from chemisorption data and observed directly by TEM for partially agglomerated catalysts were found to be in good agreement.
Journal ArticleDOI
An infrared study of CO and NO adsorption on alumina-supported iridium catalyst
F. Solymosi,J. Raskó +1 more
TL;DR: In this paper, infrared spectroscopic measurements were performed for NO and CO adsorbed on reduced and oxidized Ir supported on γ-Al2O3, showing that NO adsorption on a reduced sample produced bands at 1900 and 1850 cm−1.
Journal ArticleDOI
Controlled preparation and characterization of plurimetallic Pt–Sn and Pt–Ir–Sn/Al2O3 reforming catalysts
TL;DR: In this article, the preparation of bimetallic 0.6.3.% Pt−0.1.% Ir−x-wt.% Sn/Al2O3 catalysts (0
Journal ArticleDOI
The role of catalyst presulfurization in some reactions of catalytic reforming and hydrogenolysis
TL;DR: In this article, three reforming catalysts (Pt/Al/sub 2/O/sub 3), Pt-Ir/Al 2 O 2 O 3, and Pt-Re/Al 1 O 2 2 O O 3 ) have been shown to have a sulfur coverage (S/sub i/) near 0.5.
References
More filters
Journal ArticleDOI
Adsorption of Gases in Multimolecular Layers
Journal ArticleDOI
The Determination of Pore Volume and Area Distributions in Porous Substances. I. Computations from Nitrogen Isotherms
Journal ArticleDOI
Hydrogen-oxygen titration method for the measurement of supported palladium surface areas
TL;DR: In this article, the titration by means of hydrogen or deuterium at 100 °C of oxygen preadsorbed on a supported palladium catalyst has been used to measure the dispersion of the palladium.
Journal ArticleDOI
Determination of Surface Area. Adsorption Measurements by Continuous Flow Method
F. M. Nelsen,F. T. Eggertsen +1 more
Journal ArticleDOI
On the specific activity of platinum catalysts
TL;DR: The specific activity for hydrogenation of cyclopropane at 0 °C on platinum catalysts was found to be independent of platinum content on two different forms of alumina, independent of the nature of the support with alumina or silica gel, and almost the same for highly dispersed samples in which nearly every platinum atom is a surface atom as for a platinum foil as discussed by the authors.
Related Papers (5)
Studies of the hydrogen held by solids: XVIII. Hydrogen and oxygen chemisorption on alumina- and zeolite-supported platinum
Geoffrey R. Wilson,W.Keith Hall +1 more