Journal ArticleDOI
Adsorption studies on hydrodesulfurization catalysts: I. Infrared and volumetric study of NO adsorption on alumina-supported Co, Mo, and Co-Mo catalysts in their calcined state
Nan-Yu Topsøe,Henrik Topsøe +1 more
TLDR
In this article, the effect of varying the cobalt loading, calcination temperature, and sample pretreatment conditions was studied for NO adsorption on Co Al 2 O 3 and CoAl 2 O 4 catalysts.About:
This article is published in Journal of Catalysis.The article was published on 1982-06-01. It has received 163 citations till now. The article focuses on the topics: Cobalt & Adsorption.read more
Citations
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Journal ArticleDOI
Identification of Neutral and Charged N x O y Surface Species by IR Spectroscopy
TL;DR: In this article, the infrared spectral performance of N x O y species observed on oxide surfaces [N2O, NO−, NO, (NO)2, N2O3, NO+, NO2 − (different nitro and nitrito anions), NO2, n2O4, N 2O5, NO2 and NO3 − (bridged, bidentate, and monodentate nitrates)] is considered.
Journal ArticleDOI
Temperature-programmed reduction of CoOAI2O3 catalysts
P. Arnoldy,Jacob A. Moulijn +1 more
TL;DR: In this article, it was shown that temperature-programmed reduction (TPR) is a sensitive technique for the characterization of Co and Co-Aloxidic phases in CoOAl2O3 catalysts.
Journal ArticleDOI
Efficient Production of Hydrogen over Supported Cobalt Catalysts from Ethanol Steam Reforming
TL;DR: In this article, the reaction between ethanol and water was studied in the temperature range 573 −723 K at atmospheric pressure over supported cobalt catalysts, and the extent and nature of carbon deposition depended on the sample and on the reaction temperature.
Journal ArticleDOI
Characterization of the structures and active sites in sulfided CoMoAl2O3 and NiMoAl2O3 catalysts by NO chemisorption
Nan-Yu Topsøe,Henrik Topsøe +1 more
TL;DR: In this paper, infrared and volumetric studies of NO adsorption have been used to elucidate the type of surface structures present in sulfided Co Al 2 O 3, Ni Al 2O 3, Mo Al 2 o 3, CoMo S 2, and Ni Al O 3 catalysts.
Journal ArticleDOI
Active sites and support effects in hydrodesulfurization catalysts
Henrik Topsøe,Bjerne S. Clausen +1 more
TL;DR: In this article, the authors reviewed some of the current research on HDS catalysts and presented some new results, such as the nature of active sites in unpromoted and promoted HDS catalyst, the origin of promotional behaviors, studies of thermal ageing processes using high temperature sulfiding procedures, and the change in the phases present in catalysts after use under industrial conditions, and support effects in carbon and alumina-supported Co and Co-Mo catalysts.
References
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Book
Advanced Inorganic Chemistry
TL;DR: Cotton and Wilkinson's Advanced Inorganic Chemistry (AIC) as discussed by the authors is one of the most widely used inorganic chemistry books and has been used for more than a quarter century.
Journal ArticleDOI
Principles of structure, bonding, and reactivity for metal nitrosyl complexes
Journal ArticleDOI
In situ Mössbauer emission spectroscopy studies of unsupported and supported sulfided CoMo hydrodesulfurization catalysts: Evidence for and nature of a CoMoS phase
TL;DR: In this paper, the structure and type of phases present in sulfided alumina-supported, as well as unsupported, Co-Mo catalysts is obtained from in situ Mossbauer emission spectroscopy (MES) studies.
Journal ArticleDOI
On the catalytic significance of a CoMoS phase in CoMoAl2O3 hydrodesulfurization catalysts: Combined in situ Mössbauer emission spectroscopy and activity studies
TL;DR: In this article, a series of sulfided Co-Mo Al 2 O 3 catalysts with different Co Mo ratios but with constant molybdenum content was investigated, and it was shown that the relative amounts of the three phases depend strongly on the Co Mo ratio.
Related Papers (5)
Characterization of the structures and active sites in sulfided CoMoAl2O3 and NiMoAl2O3 catalysts by NO chemisorption
Nan-Yu Topsøe,Henrik Topsøe +1 more