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You searched for: Journal Chemical communications Remove constraint Journal: Chemical communications Publication Year 2002 Remove constraint Publication Year: 2002 Subject catalysts Remove constraint Subject: catalysts Subject aluminum oxide Remove constraint Subject: aluminum oxide
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1. A novel catalyst for hydrazine decomposition: molybdenum carbide supported on γ-Al₂O₃

Author:
Chen, Xiaowei; Zhang, Tao; Ying, Pinliang; Zheng, Mingyuan; Wu, Weicheng; Xia, Liangen; Li, Tao; Wang, Xiaodong; Li, Can
Source:
Chemical communications 2002 no.3 pp. 288-289
ISSN:
1364-548X
Subject:
aluminum oxide; catalysts; catalytic activity; chemical reactions; hydrazine; iridium; molybdenum
Abstract:
... An alumina-supported Mo₂C catalyst is found to be as active as a conventionally used Ir/γ-Al₂O₃ catalyst for catalytic decomposition of hydrazine tested in a monopropellant thruster. ...
DOI:
10.1039/b109400a

2. Susceptibility of a heterogeneous catalyst, Rh/γ-alumina, to rapid structural change by exposure to NO

Author:
Campbell, Tom; Dent, Andrew J.; Diaz-Moreno, Sofia; Evans, John; Fiddy, Steven G.; Newton, Mark A.; Turin, Sandra
Source:
Chemical communications 2002 no.4 pp. 304-305
ISSN:
1364-548X
Subject:
aluminum oxide; catalysts; chemical reactions; heat production; nitric oxide; particle size; rhodium
Abstract:
... Metal particles in a Rh/γ-Al₂O₃ catalyst of differing particle size are oxidised by NO/He within 5 seconds at 313 K; rapid, highly exothermic dissociative chemisorption of NO is the initial step. ...
DOI:
10.1039/b106846f

3. Selective hydrogenation of maleic anhydride to γ-butyrolactone over Pd/Al₂O₃ catalyst using supercritical CO₂ as solvent

Author:
Pillai, Unnikrishnan R.; Sahle-Demessie, Endalkachew
Source:
Chemical communications 2002 no.5 pp. 422-423
ISSN:
1364-548X
Subject:
aluminum oxide; carbon dioxide; catalysts; hydrogenation; lactones; maleic anhydrides; palladium; solvents; vapor pressure
Abstract:
... A selective hydrogenation of maleic anhydride to either γ-butyrolactone or succinic anhydride over simple Pd/Al₂O₃ catalyst under supercritical CO₂ medium is described for the first time which has considerable promise for both lab-scale as well as industrial selective hydrogenations of low vapor pressure compounds without employing environmentally harmful organic solvents. ...
DOI:
10.1039/b111047k

4. New carbon nanofiber/graphite felt composite for use as a catalyst support for hydrazine catalytic decomposition

Author:
Vieira, R.; Pham-Huu, C.; Keller, N.; Ledoux, M. J.
Source:
Chemical communications 2002 no.9 pp. 954-955
ISSN:
1364-548X
Subject:
aluminum oxide; carbon nanofibers; catalysts; catalytic activity; chemical reactions; graphene; hydrazine; iridium; mechanical properties; surface area; thermal conductivity
Abstract:
... Graphite felt supporting 40 nm diameter carbon nanofibers was synthezised and successfully used as a support for a high loaded iridium catalyst (30 wt%) in the decomposition of hydrazine; a strong mechanical resistance and a high thermal conductivity led to a very efficient and stable catalyst as compared to that used industrially, iridium supported on a high surface area alumina. ...
DOI:
10.1039/b202032g

5. Interplay of anions and ligands on the nature and reducibility of NiOₓ/Al₂O₃ catalysts prepared by impregnation

Author:
Negrier, F.; Marceau, E.; Che, M.
Source:
Chemical communications 2002 no.11 pp. 1194-1195
ISSN:
1364-548X
Subject:
aluminum oxide; anions; catalysts; chemical reactions; chlorides; heat treatment; ligands; nickel; nitrates; nitrogen; temperature
Abstract:
... When NiOₓ/Al₂O₃ catalysts (Ni wt% = 1.5) are prepared by impregnation using [NiL₂(H₂O)₂]X₂ as precursors (L = diamine, X = Cl⁻ or NO₃⁻), a supported oxidic or metallic phase can be selectively obtained after thermal treatment in N₂ depending on the nature of the ligand and counter anion ; the oxidic phase can be reduced at a lower temperature than the classical nickel aluminate phase obtained from ...
DOI:
10.1039/b202203f

6. Comprehensive study combining surface science and real catalyst for NO direct decomposition

Author:
Haneda, Masaaki; Kintaichi, Yoshiaki; Nakamura, Isao; Fujitani, Tadahiro; Hamada, Hideaki
Source:
Chemical communications 2002 no.23 pp. 2816-2817
ISSN:
1364-548X
Subject:
aluminum oxide; catalysts; catalytic activity; chemical reactions; models; nitric oxide; palladium
Abstract:
... The catalytic activity of Pd/Al₂O₃ prepared from various palladium precursors for direct NO decomposition is closely related to the fraction of surface step sites capable of dissociating NO, on the basis of a surface science study using single-crystal model catalyst. ...
DOI:
10.1039/b207619e