The chemistry of atomic transition-metal ions: insight into fundamental aspects of organometallic chemistry

1989 ◽  
Vol 22 (9) ◽  
pp. 315-321 ◽  
Author(s):  
P. B. Armentrout ◽  
J. L. Beauchamp
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Organometallic Chemistry ◽  
Transition Metal Ions ◽  
Atomic Transition ◽  
Insight Into

scholarly journals New Insight into the Interplay of Method of Deposition, Chemical State of Pd, Oxygen Storage Capability and Catalytic Activity of Pd-Containing Perovskite Catalysts for Combustion of Methane

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1399
Author(s):  
Silva Stanchovska ◽  
Georgy Ivanov ◽  
Sonya Harizanova ◽  
Krasimir Tenchev ◽  
Ekaterina Zhecheva ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Metal Ions ◽  
Supported Catalysts ◽  
Transition Metal Ions ◽  
Chemical State ◽  
Oxygen Storage ◽  
Heterogeneous Model ◽  
Wet Impregnation ◽  
Insight Into

Elaboration of Pd-supported catalysts for catalytic combustion is, nowadays, considered as an imperative task to reduce the emissions of methane. This study provides new insight into the method of deposition, chemical state of Pd and oxygen storage capability of transition metal ions and their effects on the catalytic reactivity of supported catalysts for the combustion of methane. The catalyst with nominal composition La(Co0.8Ni0.1Fe0.1)0.85Pd0.15O3 was supported on SiO2-modified/γ-alumina using two synthetic procedures: (i) aerosol assisted chemical vapor deposition (U-AACVD) and (ii) wet impregnation (Imp). A comparative analysis shows that a higher catalytic activity is established for supported catalyst obtained by wet impregnation, where the PdO-like phase is well dispersed and the transition metal ions display a high oxygen storage capability. The reaction pathway over both catalysts proceeds most probably through Mars–van Krevelen mechanism. The supported catalysts are thermally stable when they are aged at 505 °C for 120 h in air containing 1.2 vol.% water vapor. Furthermore, the experimentally obtained data on La(Co0.8Ni0.1Fe0.1)0.85Pd0.15O3—based catalyst, supported on monolithic substrate VDM®Aluchrom Y Hf are simulated by using a two-dimensional heterogeneous model for monolithic reactor in order to predict the performance of an industrial catalytic reactor for abatement of methane emissions.

An insight into the extraction of transition metal ions by picolinamides associated with intramolecular hydrogen bonding and rotational isomerization

RSC Advances ◽  
2014 ◽  
Vol 4 (56) ◽  
pp. 29702-29714 ◽  
Author(s):  
Yan Li ◽  
Yiming Jia ◽  
Zhenwen Wang ◽  
Xianghui Li ◽  
Wen Feng ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Transition Metal ◽  
Metal Ions ◽  
Intramolecular Hydrogen Bonding ◽  
Transition Metal Ions ◽  
Intramolecular Hydrogen ◽  
Insight Into

Disruption of intramolecular H-bonding via N-substitution leads to rotational isomerization and much improvement in extraction of Hg2+.

Theoretical insight into the catalytic effect of transition metal ions on the aquathermal degradation of heavy oil: A DFT study of cyclohexyl phenyl amine cleavage

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 123002
Author(s):  
Nail R. Khafizov ◽  
Timur I. Madzhidov ◽  
Chengdong Yuan ◽  
Mikhail A. Varfolomeev ◽  
Oleg N. Kadkin
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Heavy Oil ◽  
Catalytic Effect ◽  
Transition Metal Ions ◽  
Dft Study ◽  
Theoretical Insight ◽  
Insight Into
Sign in / Sign up

Export Citation Format

Share Document