نتایج جستجو برای: alpo4 5
تعداد نتایج: 1215876 فیلتر نتایج به سال:
Honeycomb-like AlPO4-11 macrostructures built of hollow tubular arrays have been directly achieved in a eutectic mixture. A time-dependent study reveals that the formation process obeys in situ epitaxial growth and phase transformation mechanisms.
Monolithic aluminum phosphate (AlPO4) with a macro-mesoporous structure has been successfully prepared via the sol-gel process accompanied by phase separation in the presence of poly(ethylene oxide) (PEO). Gelation of the system has been mediated by propylene oxide (PO), while PEO induces a phase separation. The dried gel is amorphous, whereas the crystalline tridymite phase precipitates upon h...
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We present an experimental study of a new hybrid material where nitrogen is encapsulated in the channels of porous zeolite AlPO4-5 (AFI) single crystals by a high-pressure method. The high-pressure behavior of nitrogen confined inside the AFI nano-channels is then investigated by Raman spectroscopy up to 44 GPa. Under pressure, the Raman modes of confined nitrogen show behaviors different from ...
Hydrothermal synthesis of AlPO4-5: Effect of precursor gel preparation on the morphology of crystals
Highly selective and sensitive phosphate sensors have been fabricated by constructing a solid membrane disk consisting of variable mixtures of aluminium powder (Al), aluminium phosphate (AlPO4) and powdered copper (Cu). Both binary and ternary electrode systems are produced. The ternary membranes exhibit greater selectivity over a wide range of concentrations. The ternary electrode with the com...
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