Nanoparticles of iron and vanadium oxides supported on iron substituted LDHs: Synthesis, textural characterization and their catalytic behavior in ethylbenzene dehydrogenation

2008 ◽  
Vol 115 (3) ◽  
pp. 541-547 ◽  
Author(s):  
Gabriela Carja ◽  
Yoshikazu Kameshima ◽  
Kiyoshi Okada
Keyword(s):  
Vanadium Oxides ◽  
Catalytic Behavior ◽  
Ethylbenzene Dehydrogenation ◽  
Textural Characterization

Mg–Fe–Al mixed oxides with mesoporous properties prepared from hydrotalcite as precursors: Catalytic behavior in ethylbenzene dehydrogenation

2005 ◽  
Vol 288 (1-2) ◽  
pp. 220-231 ◽  
Author(s):  
Yoshihiko Ohishi ◽  
Tomonori Kawabata ◽  
Tetsuya Shishido ◽  
Ken Takaki ◽  
Qinghong Zhang ◽  
...  
Keyword(s):  
Mixed Oxides ◽  
Catalytic Behavior ◽  
Ethylbenzene Dehydrogenation

TEXTURAL CHARACTERIZATION OF THE CIMA VOLCANIC FIELD (CALIFORNIA) USING TRADITIONAL AND NOVEL APPROACHES

2018 ◽  
Author(s):  
Katie O'Sullivan ◽  
◽  
Stewart Harvin ◽  
Virginia Rodriguez ◽  
Favour Epuna ◽  
...  
Keyword(s):  
Volcanic Field ◽  
Textural Characterization ◽  
Novel Approaches ◽  
Cima Volcanic Field

scholarly journals Using a Battery to Synthesize New Vanadium Oxides

2017 ◽  
Vol 2 (20) ◽  
pp. 5800-5804 ◽  
Author(s):  
Marie Guignard ◽  
Claude Delmas
Keyword(s):  
Vanadium Oxides

scholarly journals Insights into the Microstructural Evolution Occurring during Pyrolysis of Metal-Modified Ceramers Studied through Selective SiO2 Removal

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3276
Author(s):  
Aitana Tamayo ◽  
Juan Rubio ◽  
Fausto Rubio ◽  
Mᵃ Angeles Rodriguez
Keyword(s):  
Structural Characteristics ◽  
Domain Size ◽  
Ceramic Composites ◽  
Silicon Oxycarbide ◽  
Crosslinking Degree ◽  
Molecular Precursors ◽  
Textural Characterization ◽  
Polymer Derived Ceramic ◽  
Ultimate Properties ◽  
Lower Carbon

Silicon oxycarbide ceramers containing 5% aluminum, zirconium, and cobalt with respect to the total Si amount are prepared from a commercial polysiloxane and molecular precursors and pyrolyzed at temperatures ranging from 500 to 1000 °C. HF etching is carried out to partially digest the silica phase, thus revealing structural characteristics of the materials, which depend upon the incorporated heteroatom. From the structural and textural characterization, it was deduced that when Al enters into the ceramer structure, the crosslinking degree is increased, leading to lower carbon domain size and carbon incorporation as well. On the contrary, the substitution by Zr induced a phase-separated SiO2-ZrO2 network with some degree of mesoporosity even at high pyrolysis temperatures. Co, however, forms small carbidic crystallites, which strongly modifies the carbonaceous phase in such a way that even when it is added in a small amount and in combination with other heteroatoms, this transient metal dominates the structural characteristics of the ceramer material. This systematic study of the ceramer compounds allows the identification of the ultimate properties of the polymer-derived ceramic composites.

scholarly journals Dichloro(η6-p-cymene)(P,P-diphenyl-N-propyl-phosphinous amide-κP)ruthenium(II)

Molbank ◽  
10.3390/m1217 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1217
Author(s):  
Rebeca González-Fernández ◽  
Pascale Crochet ◽  
Victorio Cadierno
Keyword(s):  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Title Compound ◽  
Room Temperature ◽  
Toluene Solution ◽  
Catalytic Behavior ◽  
Multinuclear Nmr

The title compound, i.e., [RuCl2(η6-p-cymene)(PPh2NHnPr)] (2), was obtained in a 71% yield by reacting a toluene solution of the chlorophosphine complex [RuCl2(η6-p-cymene)(PPh2Cl)] (1) with two equivalents of n-propylamine at room temperature. The aminophosphine complex 2 was characterized by elemental analysis, multinuclear NMR (31P{1H}, 1H and 13C{1H}) and IR spectroscopy. In addition, its catalytic behavior in the hydration of benzonitrile was briefly explored.

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