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Active Catalyst Derived from Nb-containing Heteropoly Acids: Their Acid Properties and Catalysis in Friedel-Crafts Reactions
Heteropoly acid Friedel-Crafts reaction Support effect NMR EXAFS Temperature programmed desorption
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2010/9/8
A ternary-mixed oxide catalyst, H3PO4-WO3-Nb2O5, was prepared with the evacuation of a mixed solution of phosphoric acid, niobic oxalate, and (NH4)10W12O41, followed by calcination in air. We found th...
Preparation of Highly Active Co/SiO2 Fischer-Tropsch Synthesis Catalyst with Chelating Agents: Effect of Chelating Agents on Structure of Co Species during Preparation Steps
Fischer-Tropsch synthesis Cobalt catalyst Chelating agent Cobalt silicate
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2009/7/28
The present study investigated the structure of Co species formed during the preparation of Co/SiO2 Fischer-Tropsch synthesis (FTS) catalysts with an aqueous Co nitrate solution modified with chelati...
New Antagonism of Hindered Amine Light Stabilizers with Acidic Compounds Including Phenolic Antioxidants (Part 2) Formation Mechanism of Active Species of Peroxide Decomposition Reaction
HALS Phenolic antioxidant Antagonism Nitrosonium salt
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2009/7/27
The effect of acidic compound on the formation of active species in homolytic hydroperoxide decomposition by hindered amine light stabilizers (HALS) was studied. The hydroperoxide decomposition activ...
Development of Highly Active Co-Mo Catalysts with Phosphorus and Citric Acid for Ultra-deep Desulfurization of Diesel Fractions (Part 2) Characterization of Active Sites
Hydrodesulfurization Citric acid addition Phosphorus addition Co-Mo-S phase
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2009/7/27
Mo K-edge EXAFS, TEM and FT-IR of adsorbed NO were performed to further investigate the nature of the active sites on the CoMo/HY-Al2O3 catalyst containing citric acid and phosphorus, which had signi...
Development of Highly Active Co-Mo Catalysts with Phosphorus and Citric Acid for Ultra-deep Desulfurization of Diesel Fractions (Part 1) Preparation and Performance of Catalysts
Cobalt molybdenum catalyst Co-Mo-S phase Diesel fuel
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2009/7/27
Development of Highly Active Co-Mo Catalysts with Phosphorus and Citric Acid for Ultra-deep Desulfurization of Diesel Fractions (Part 1) Preparation and Performance of Catalysts.
Subsurface basement structure inferred from resistivity and gravity data around the Muramatsu active fault, the eastern margin of the Niigata sedimentary basin, central Japan
resistivity gravity basement inversion tectonics Muramatsu Fault
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2009/4/13
In order to clarify the subsurface pre-Tertiary basement structure at the eastern margin of the Niigata plain, we carried out remote sensing, geological, electromagnetic and gravity surveys at Muram...