نتایج جستجو برای: heteropoly acids
تعداد نتایج: 265272 فیلتر نتایج به سال:
Evidence is accumulating for the major influence of the identities of counterions on syntheses and properties of various heteropoly anions. An easy and convenient NMR method is presented for evaluating the extent of significant association between heteropoly tungstate species and monoatomic metallic counterions (e.g., alkali metal cations). In diamagnetic [alpha(2)-P(2)W(17)O(61)-Th(4+)-alpha(2...
Abstract: The aim of this research is to provide a convenient and relatively inexpensive preparation method for synthesis of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). TATB is a reasonably powerful explosive in which ts thermal and shock stability is considerably greater than that of any other known energetic material. It is used in military applications because of its significant insensitiv...
Lignocellulosic biomass is an attractive resource for producing transportation fuels, and consequently novel approaches are being sought for transforming the lignin and cellulosic constituents of biomass to fuels or fuel additives. Glucose, the monomer of cellulose, is a good starting material for exploring such chemistries. We report here the results of an investigation aimed at identifying ca...
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