𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Characterization and catalytic activity of nickel-zeolite catalysts. II. Effects of hydroxyl groups on reduction of nickel ions in mordenites

✍ Scribed by Minoru Suzuki; Kazuo Tsutsumi; Hiroshi Takahashi

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
627 KB
Volume
2
Category
Article
ISSN
0144-2449

No coin nor oath required. For personal study only.

✦ Synopsis

A series of nickel, hydrogen-mordenites including various amounts of hydroxyl groups were prepared, and the effects of the hydroxyl groups on the degree of nickel reduction were studied. The reducibility of nickel ions decreased with the increase of acidic hydroxyl groups in mordenites. The effect of these hydroxyl groups was interpreted in terms of the reduction-oxidation characteristics of nickel ions in mordenites.

πŸ“œ SIMILAR VOLUMES

Characterization and catalytic activity
Characterization and catalytic activity of nickel-zeolite catalysts. I. Reduction properties of nickel ions in zeolites
✍ Minoru Suzuki; Kazuo Tsutsumi; Hiroshi Takahashi πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 793 KB

Nickel-zeolite Y of various parent cation types, NiNa-A and NiNa-M were prepa'red. The reducibilities of nickel ions in these zeolites were evaluated by hydrogen consumption measurement. The nickel ions were reduced markedly by hydrogen in NiCa-Y, NiSr-Y and NiBa-Y in contrast to that of NiNa-Y, whe

Characterization and catalytic activity
Characterization and catalytic activity of nickel-zeolite catalysts. IV. Effects of support on dispersion of nickel and catalytic activity
✍ Minoru Suzuki; Kazuo Tsutsumi; Hiroshi Takahashi πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 646 KB

The dispersion states of reduced nickel on zeolites and their activities were studied on a series of nickel-zeolites A, X, Y and nickel-mordenites. The dispersion of nickel was affected by the types of zeolite support, and increased in the order; NiNa-Y < NiNa-X < NiNa-M NiNa-A. The reduced nickel w

Characterization and catalytic activity
Characterization and catalytic activity of nickel-zeolite catalysts. III. Effects of parent-cations on dispersion of nickel and activity of benzene hydrogenation
✍ Minoru Suzuki; Kazuo Tsutsumi; Hiroshi Takahashi πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 753 KB

A series of nickel-zeolite catalysts with alkaline earth, lanthanum and hydrogen ions as parent-cations in zeolite Y were prepared. The degrees of nickel ion reduction and the dispersion states of reduced nickel were affected by the extent of nickel-exchange and by the types of parent-cations in zeo

Effect of N2O-mediated calcination on ni
Effect of N2O-mediated calcination on nickel species and the catalytic activity of nickel catalysts supported on Ξ³-Al2O3 in the steam reforming of glycerol
✍ Youngbo Choi; Nam Dong Kim; Jayeon Baek; Wooyoung Kim; Hee Jong Lee; Jongheop Yi πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 851 KB

The steam reforming of glycerol over supported nickel catalysts is a promising and costeffective method for producing hydrogen. The activity of nickel catalysts supported on g-Al 2 O 3 is low, primarily due to the formation of inactive nickel species during high temperature calcination in air. In or

Organometallic nickel catalysts anchored
Organometallic nickel catalysts anchored on polymeric matrices in the oligomerization and/or polymerization of olefins. Part II. Effect and role of the components of the catalytic system
✍ G. Braca; A.M. Raspolli Galletti; M. Di Girolamo; G. Sbrana; R. Silla; P. Ferrar πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 847 KB

Organometallic nickel complexes with bidentate P"0 chelating ligands of ylidic (-C(O)H=PPh,) and phosphino-acetic (-CH( PPh,)-COOH) type heterogenized on polystyrene resins by anchoring through the carbon atom of the ligand have been prepared and used in the polymerization and/or oligomerization of