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Spectroscopic and Catalytic Activity Studies of TAPO-5

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The present work describes hydrothermal synthesis of titanium containing AlPO-5 (TAPO-5) and a systematic investigation was undertaken towards understanding the oxidation state, coordination and stability of titanium in TAPO-5 structure, by means of spectroscopic and catalytic activity. AlPO-5 containing Ti(IV) in the tetrahedral coordination was indicated by powder diffraction, DRUV-VIS and FTIR studies. Nitrogen adsorption–desorption studies revealed the microporous nature of the material. Field emission scanning electron micrographs showed flat shaped irregular crystals with ample surface roughness. Transmission electron micrographs showed an open structure containing thread like structures. Activity studies showed that p-cresol can selectively be converted to p-hydroxybenzyl alcohol. At 383 K, about 79% of p-cresol was converted into p-hydroxybenzyl alcohol and p-hydroxybenzaldehyde. By raising the reaction temperature to 408 K resulted in a decrease in conversion of p-cresol with selective yield of p-hydroxybenzyl alcohol.
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Keywords: ALUMINOPHOSPHATE; P-CRESOL; TAPO-5

Document Type: Research Article

Publication date: June 1, 2018

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  • ADVANCED POROUS MATERIALS (APM) is an international peer-reviewed journal that publishes research activities on the fundamental aspects, synthesis, advanced characterization, structural properties, and multiple applications of all kinds of novel micro, meso-, nano- and macro-porous materials. APM also offers unique opportunity to report the energy and environmental related applications of advanced porous materials addressing significant environmental problems as a result of global climate changes. APM publishes reviews, full-length papers, and short communications, covering materials including zeolites, zeotypes, metal organic frameworks, layered materials, porous carbons, nitrides, metals, polymers, phosphides, chalcogenides, transition metal oxides, hydroxyapatite, gels, fibers, ceramics, glasses, membranes, and thermoelectric materials, mesoporous silica, amorphous and crystalline mesoporous metallosilicates, mesoporous hybrid materials, nanocomposites, porous organic molecules, graphenes, and open framework materials, and their applications in catalysis, sensing, adsorption, separation, drug delivery, magnetism, battery, supercapacitors, solar cells, nanodevices, and fine chemical synthesis.
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