Phosphate modified ceria as a Brønsted acidic/redox multifunctional catalyst
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چکیده
منابع مشابه
Phosphate Ion as a Promoter Catalyst of Respiration
The active component of phosphate solutions, in relation to promoter action on oxidising enzymes, is the PO(4) (''') ion. This is shown by the demonstration of a hyperbolic relationship between per cent production of CO(2) (of Elodea) and pPO(4), the measure of the phosphate ion potential. This is consistent with the rate of respiration as affected by changing pPO(4) through change of total pho...
متن کاملPhosphate Ion as a Promoter Catalyst of Respiration
In other papers (Lyon, 1923-24, 1927) results have been reported which appeared to show that neutral solutions of sodium or potassium phosphate serve to catalyze the enzymatic production of CO2 by plant tissues. The oxidising enzymes involved were those of Elodea canadensis, wheat seedlings, and potato tubers, the latter studied only in aqueous extracts. We shall now present additional proof of...
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A porous phosphate heterostructure (PPHs) formed by a layered zirconium(IV) phosphate expanded with silica galleries was prepared presenting a P/Zr molar ratio equal to 2 and a (Si + Zr)/P ratio equal to 3. This pillared zirconium phosphate heterostructure was used as a catalyst support for bi-functional catalysts based on noble metals (Pt or Pd) and molybdenum oxide containing a total metallic...
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Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.
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The growth of semiconducting single-walled carbon nanotubes (s-SWNTs) on flat substrates is essential for the application of SWNTs in electronic and optoelectronic devices. We developed a flexible strategy to selectively grow s-SWNTs on silicon substrates using a ceria-supported iron or cobalt catalysts. Ceria, which stores active oxygen, plays a crucial role in the selective growth process by ...
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ژورنال
عنوان ژورنال: Journal of Materials Chemistry A
سال: 2017
ISSN: 2050-7488,2050-7496
DOI: 10.1039/c6ta08703e