Catalytic activity and selectivity of homogeneous and heterogeneous rhodium catalysts in hydrogenation and isomerization reactions

1971 ◽  
Vol 20 (2) ◽  
pp. 336-339
Author(s):  
L. Kh. Freidlin ◽  
E. F. Litvin ◽  
L. F. Topuridze
Keyword(s):  
Catalytic Activity ◽  
Rhodium Catalysts ◽  
Hydrogenation And Isomerization Reactions

Supported Rhodium Catalysts for Ammonia-Borane Hydrolysis: Dependence of the Catalytic Activity on the Highest Occupied State of the Single Rhodium Atoms

2017 ◽  
Vol 129 (17) ◽  
pp. 4790-4796 ◽  
Author(s):  
Liangbing Wang ◽  
Hongliang Li ◽  
Wenbo Zhang ◽  
Xiao Zhao ◽  
Jianxiang Qiu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ammonia Borane ◽  
Rhodium Catalysts ◽  
Occupied State

Polymerization of phenylacetylenes by binuclear rhodium catalysts with different para-binucleating phenoxyiminato linkages

2019 ◽  
Vol 10 (30) ◽  
pp. 4163-4172 ◽  
Author(s):  
Xiaolu Wu ◽  
Pengfei Zhang ◽  
Zhi Yang ◽  
Shaowen Zhang ◽  
Hao Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rhodium Catalyst ◽  
Rhodium Catalysts ◽  
Cooperative Effects ◽  
Functional Derivatives

A binuclear rhodium catalyst 3b with a 2,5-phenyloxydiiminato linkage and an nbd ligand exhibits cooperative effects in terms of enhanced catalytic activity in the polymerization of phenylacetylene and its functional derivatives.

Supported Rhodium Catalysts for Ammonia-Borane Hydrolysis: Dependence of the Catalytic Activity on the Highest Occupied State of the Single Rhodium Atoms

2017 ◽  
Vol 56 (17) ◽  
pp. 4712-4718 ◽  
Author(s):  
Liangbing Wang ◽  
Hongliang Li ◽  
Wenbo Zhang ◽  
Xiao Zhao ◽  
Jianxiang Qiu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ammonia Borane ◽  
Rhodium Catalysts ◽  
Occupied State

High resolution electron microscopy of lanthanum phosphate crystals

1978 ◽  
Vol 36 (1) ◽  
pp. 274-275
Author(s):  
J. C. Wheatley ◽  
J. M. Cowley
Keyword(s):  
Electron Microscopy ◽  
Catalytic Activity ◽  
High Resolution ◽  
Petroleum Industry ◽  
High Resolution Electron Microscopy ◽  
Lanthanum Phosphate ◽  
Good Catalyst ◽  
Resolution Electron ◽  
Good Catalytic Activity ◽  
Physical And Chemical

Rare-earth phosphates are of particular interest because of their catalytic properties associated with the hydrolysis of many aromatic chlorides in the petroleum industry. Lanthanum phosphates (LaPO4) which have been doped with small amounts of copper have shown increased catalytic activity (1). However the physical and chemical characteristics of the samples leading to good catalytic activity are not known.Many catalysts are amorphous and thus do not easily lend themselves to methods of investigation which would include electron microscopy. However, the LaPO4, crystals are quite suitable samples for high resolution techniques.The samples used were obtained from William L. Kehl of Gulf Research and Development Company. The electron microscopy was carried out on a JEOL JEM-100B which had been modified for high resolution microscopy (2). Standard high resolution techniques were employed. Three different sample types were observed: 669A-1-5-7 (poor catalyst), H-L-2 (good catalyst) and 27-011 (good catalyst).

The design and catalytic performance of molybdenum active sites on an MCM-41 framework for the aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

2019 ◽  
Vol 9 (3) ◽  
pp. 811-821 ◽  
Author(s):  
Zhao-Meng Wang ◽  
Li-Juan Liu ◽  
Bo Xiang ◽  
Yue Wang ◽  
Ya-Jing Lyu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Mcm 41

The catalytic activity decreases as –(SiO)3Mo(OH)(O) > –(SiO)2Mo(O)2 > –(O)4–MoO.

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