A ceramics acid, calcined at temperatures above 1000 °C, was obtained by impregnating aluminum hydroxide with aqueous ammonium metatungstate followed by calcining in air at 1000–1200 °C (1–5 wt% W); its acidity and catalytic activity for decompositions of toluene, ethylbenzene, and cumene are higher than those of silica-alumina.
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Hino, M., Matsuhashi, H. & Arata, K. Synthesis of a Ceramic Acid of Tungstated Alumina more Active than Silica-alumina for Decompositions of Cumene, Ethylbenzene, and Toluene. Catal Lett 107, 161–163 (2006). https://doi.org/10.1007/s10562-005-0012-8
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DOI: https://doi.org/10.1007/s10562-005-0012-8