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Results

51 753 results (1,754s) •

Result

12-Tungstophosphoric Heteropolyacid Supported on Modified SBA-15 as Catalyst in HDS of Thiophene

NiW catalysts have been synthesized by loading a Ni salt of 12-tungstophosphoric heteropolyacid on Al-, Ti-, and W- modified SBA-15. It was found that incorporation of Ti- or W- into the SBA-15 structure increases reducibility of Ni...

CI - Průmyslová chemie a chemické inženýrství

  • 2009
    • •
  • Jx
Result

Self assembled polyaniline 12-tungstophosphate micro/nanostructures

-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic

BK - Mechanika tekutin

  • 2010
    • •
  • Jx
Result

Synthesis and Characterization of W-SBA-A5 and W-HMS as Supports for HDS

W-modified HMS and SBA-15 mesoporous materials were synthesized using sodium tungstate as tungsten source. In order to preare NiW catalysts these mesoporous materials were impregnated with an aqueous solution of nickel salt of 12-tungsto...

CI - Průmyslová chemie a chemické inženýrství

  • 2011
    • •
  • Jx
    • •
  • Link
Result

TiO2 Nanotubes Supported NiW Hydrodesulphurization Catalysts: Characterization and Activity

High surface area TiO2 nanotubes synthesized by alkali hydrothermal method, alumina and titania were used as a support for NiW hydrodesulphurization catalyst. Nickel salt of 12-tungstophosphoric acid (Ni3/2PW12O40) was appl...

CI - Průmyslová chemie a chemické inženýrství

  • 2013
    • •
  • Jx
    • •
  • Link
Result

Multigram preparation of tungsten microfibers via needle-less electrospinning of phosphotungstic acid

Metallic tungsten microfibers were prepared in a multigram yield by electrospinning from the aqueous phosphotungstic acid/polyvinyl alcohol (PVA) solution in three steps. Green composite microfibers of H3PW12O40 /PVA were easily electrospun ...

Chemical sciences

  • 2023
    • •
  • Jimp
    • •
  • Link
Result

Delta 12-Fatty Acid Desaturase from Candida parapsilosis Is a Multifunctional Desaturase Producing a Range of Polyunsaturated and Hydroxylated Fatty Acids

Numerous Delta 12-, Delta 15- and multifunctional membrane fatty acid in Saccharomyces cerevisiae strains supplemented with linoleic acid (Delta 9,Delta 12-18:2) and hexadecadienoic acid (Delta 9,Delta

CE - Biochemie

  • 2014
    • •
  • Jx
    • •
  • Link
Result

Textural Properties of Zirconium-Modified Mesoporous Silicates Containing 12-Molybdophosphoric Heteropoly Acid

This article deals with modified mesoporous silicates containing 12-molybdophosphoric heteropoly acid...

CI - Průmyslová chemie a chemické inženýrství

  • 2004
    • •
  • D
Result

GC-MS structural characterization of fatty acids from marine aerobic anoxygenic phototrophic bacteria

Fatty acid composition has been analysed in 12 strains of aerobic anoxygenic. All strains contained rare 11-methyl-octadeca-12-enoic acid and three of them containedso far unidentified 12-methyl-okcadeca-1...

EE - Mikrobiologie, virologie

  • 2005
    • •
  • Jx
Result

Acidity of MCM-58 and MCM-68 zeolites in comparison with some other 12-ring zeolites

Two novel zeolites MCM-58 and MCM-68 with 12-ring channels and containing the cages in the structure were investigated with respect to their acidic properties and compared with other two 12-ring zeolites, namely Beta and ZS...

CF - Fyzikální chemie a teoretická chemie

  • 2010
    • •
  • Jx
Result

Long-term home parenteral nutrition and profile of amino acids in serum and their loss in urine

excretion of amino acids during 12 h of infusion accounted for only 0.34 % (0-23-0.46Amino acids are an essential part of parenteral nutrition. This study aimed to determine the serum profile of amino acids and th...

Nutrition, Dietetics

  • 2023
    • •
  • Jimp
    • •
  • Link
  • 1 - 10 out of 51 753