Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

High surface area fluorides

Katz, S. Use of high-surface-area sodium fluoride to prepare MFj. 2 NaF complexes with UFg, WFg, MoFg. Inorg. Chem. 3, 1598 (1964). [Pg.80]

Cabot flame process, high-surface-area nanostructured materials, 11 Calcium fluoride... [Pg.206]

Huorothene vessel. Other methods include the decomposition of various nitrosyl adducts. In the present method, nitrogen dioxide is allowed to react at room temperature with an excess of potassium fluoride to produce nitrosyl fluoride, in nearly quantitative yields, as the only volatile product. The rate of formation of nitrosyl fluoride may be dramatically increased by first forming a potassium fluoride-hexafluoroacetone adduct which is subsequently thermally decomposed to yield potassium fluoride having a high surface area. [Pg.195]

Predict areas where high-surface-area Nafion might be able to replace the use of hydrogen fluoride and concentrated sulfuric acid as catalysts. [Pg.173]

Other materials Charcoals can have very high surface areas ( > 1000 m2 g ) but complex surface functionalities minerals such as caldum fluoride have low surface areas but can be useful as highly inert surfaces... [Pg.57]

BU2AE (102-81-8) Forms explosive mixture with air (flash point 200°F/93°C). Reacts violently with strong oxidizers. Violent reaction with strong acids, isopropyl percarbonate, nitrosyl perchlorate, sodium peroxide, uranium fluoride. Incompatible with aldehydes, boranes, cellulose nitrate (of high surface area), cresols, isocyanates, nitrates, nitric acid, organic anhydrides, phenols, sulfuric acid. [Pg.207]

The electrochemically active electrode materials in Li-ion batteries are a lithium metal oxide for the positive electrode and lithiated carbon for the negative electrode. These materials are adhered to a metal foil current collector with a binder, typically polyvinylidene fluoride (PVDF) or the copolymer polyvinylidene fluoride-hexafluroropropylene (PVDF-HFP), and a conductive diluent, typically a high-surface-area carbon black or graphite. The positive and negative electrodes are electrically isolated by a microporous polyethylene or polypropylene separator film in products that employ a liquid electrolyte, a layer of gel-polymer electrolyte in gel-polymer batteries, or a layer of solid electrolyte in solid-state batteries. [Pg.1076]

This new fluorolytic route was first time published for the synthesis of nanoscopic high-surface-area aluminum fluoride (HS-AIF3) in 2003 [9], which has been proven in the meantime to be a general synthesis approach for nanoscopic metal fluorides [10-25]. For deeper insights into the mechanism of the fluorolytic sol-gel approach see Ref. [26]. [Pg.137]

For hydroxylated magnesium fluoride, the range from 100 to 40 wt% aqueous HF at a constant HF to Mg ratio of 2 results in Brpnsted acidic samples of different strengths for hydroxylated aluminum fluoride even higher water concentrations can be applied. These samples possess very high surface areas ranging from 200 to 450 mVg. Moreover, adsorption of CO reveals the presence of fivefold and fourfold coordinate Mg sites at the surface. This additional finding... [Pg.144]


See other pages where High surface area fluorides is mentioned: [Pg.111]    [Pg.257]    [Pg.585]    [Pg.17]    [Pg.58]    [Pg.198]    [Pg.377]    [Pg.1498]    [Pg.239]    [Pg.373]    [Pg.554]    [Pg.572]    [Pg.13]    [Pg.406]    [Pg.14]    [Pg.64]    [Pg.141]    [Pg.773]    [Pg.775]    [Pg.1017]    [Pg.1022]    [Pg.1023]    [Pg.393]    [Pg.868]    [Pg.870]    [Pg.1168]    [Pg.1169]    [Pg.1183]    [Pg.1497]    [Pg.147]    [Pg.350]    [Pg.239]    [Pg.112]    [Pg.489]    [Pg.253]    [Pg.52]    [Pg.140]    [Pg.151]   


SEARCH



High surface

© 2024 chempedia.info