Comparative study of the hydrogen reduction of Ni2+ ions in X- and Y-zeolites

1978 ◽  
Vol 74 (0) ◽  
pp. 1538 ◽  
Author(s):  
Marguerite Briend-Faure ◽  
Janine Jeanjean ◽  
Maggy Kermarec ◽  
Denise Delafosse
Keyword(s):  
Comparative Study ◽  
Hydrogen Reduction ◽  
Y Zeolites

ChemInform Abstract: COMPARATIVE STUDY OF THE HYDROGEN REDUCTION OF NICKEL(II) IONS IN X- AND Y-ZEOLITES

1978 ◽  
Vol 9 (31) ◽  
Author(s):  
M. BRIEND-FAURE ◽  
J. JEANJEAN ◽  
M. KERMAREC ◽  
D. DELAFOSSE
Keyword(s):  
Comparative Study ◽  
Hydrogen Reduction ◽  
Y Zeolites

scholarly journals A Comparative Study on Mesoporous Y Zeolites Prepared by Hard-Templating and Post-Synthetic Treatment Methods

2021 ◽  
pp. 117986
Author(s):  
Samer Abdulridha ◽  
Yilai Jiao ◽  
Shaojun Xu ◽  
Rongxin Zhang ◽  
Zhongyuan Ren ◽  
...  
Keyword(s):  
Comparative Study ◽  
Y Zeolites ◽  
Treatment Methods ◽  
Hard Templating

Effect of Li, Na, K and Cs on Vacuum Decomposition of Tetraammineplatinum(II) in Zeolites. Catalytic Activity in CO + NO Reaction

1995 ◽  
Vol 60 (3) ◽  
pp. 428-442 ◽  
Author(s):  
Jana Nováková ◽  
Libor Brabec ◽  
Ludmila Kubelková
Keyword(s):  
Catalytic Activity ◽  
Decomposition Rate ◽  
Reaction Rate ◽  
Hydrogen Reduction ◽  
Pt Catalyst ◽  
Y Zeolites ◽  
Oxygen Layer ◽  
Zeolite Structure ◽  
X Zeolites ◽  
Vacuum Decomposition

[Pt(NH3)4]2+ ions were exchanged for alkali (Li, Na, K and Cs) in -X and -Y zeolites and decomposed in vacuum. TPR after this decomposition showed that autoreduction accompanying this process reduced roughly 2/3 of all Pt2+ to Pt0. The extent of the autoreduction rose with the ammonia pressure over the zeolite. The decomposition rate increased with increasing electropositivity of the alkali ion and this effect completely overlapped that of the zeolite structure. The CO + NO reaction rate also increased from Li to Cs, but -X zeolites were substantially more active than the -Y ones. Oxygen layer on the resulting Pt catalyst affected positively the reaction rate. The dispersion of Pt particles was relatively low, when compared to that obtained by decomposition of the Pt tetraammine complex in oxygen followed by hydrogen reduction. However, the reaction rate was higher.

Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction

2016 ◽  
Vol 70 (3) ◽  
Author(s):  
Xiao-Ling Yu ◽  
Yan-Nan Lu ◽  
Huan Huang ◽  
De-Zhi Yi ◽  
Li Shi ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Ion Exchange ◽  
Hydrogen Reduction ◽  
Liquid Hydrocarbon ◽  
Incipient Wetness Impregnation ◽  
Dimethyl Sulphide ◽  
Ambient Conditions ◽  
Y Zeolite ◽  
Y Zeolites ◽  
Incipient Wetness

AbstractA series of nickel-modified Y zeolites were prepared for the adsorption of dimethyl sulphide (DMS) in liquid hydrocarbon streams. The adsorption desulphurisation performance was investigated under ambient conditions of nickel-based adsorbents developed by the liquid-phase ion exchange (LPIE) method and the incipient wetness impregnation (IWI) method with and without the ultrasonic aid technique. It was found that the nickel-modified Y zeolite prepared by the IWI method with the ultrasonic aid technique with hydrogen reduction demonstrated a high sulphur capacity of 69.9 mg of S per g of sorbent at a break-through sulphur level of 10 μg g

Redox behavior of transition metal ions in zeolites. I. Reversibility of the hydrogen reduction of copper Y zeolites

1975 ◽  
Vol 79 (22) ◽  
pp. 2388-2394 ◽  
Author(s):  
R. G. Herman ◽  
J. H. Lunsford ◽  
H. Beyer ◽  
P. A. Jacobs ◽  
J. B. Uytterhoeven
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Hydrogen Reduction ◽  
Transition Metal Ions ◽  
Redox Behavior ◽  
Y Zeolites

Behavior of Benzene in Na-X and Na-Y Zeolites:  Comparative Study by2H NMR and Molecular Mechanics

1996 ◽  
Vol 100 (14) ◽  
pp. 5923-5930 ◽  
Author(s):  
Scott M. Auerbach ◽  
Lucy M. Bull ◽  
Neil J. Henson ◽  
Horia I. Metiu ◽  
Anthony K. Cheetham
Keyword(s):  
Comparative Study ◽  
Molecular Mechanics ◽  
Y Zeolites

Author response for "Laminar distribution of cortical projection neurons to the pulvinar: A comparative study in cats and mice"

2020 ◽  
Author(s):  
Bruno Oliveira Ferreira de Souza ◽  
Éve‐Marie Frigon ◽  
Robert Tremblay‐Laliberté ◽  
Christian Casanova ◽  
Denis Boire
Keyword(s):  
Comparative Study ◽  
Author Response ◽  
Projection Neurons ◽  
Cortical Projection ◽  
Laminar Distribution
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