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首页> 外文期刊>Journal of industrial and engineering chemistry >Sucrose-mediated sol-gel synthesis of nanosized pure and S-doped zirconia and its catalytic activity for the synthesis of acetyl salicylic acid
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Sucrose-mediated sol-gel synthesis of nanosized pure and S-doped zirconia and its catalytic activity for the synthesis of acetyl salicylic acid

机译：蔗糖介导的纯S掺杂氧化锆的溶胶-凝胶合成及其对乙酰水杨酸合成的催化活性

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摘要

Nano-sized pure and S-doped zirconia was prepared by the sol-gel method in the presence of sucrose and zirconium(IV) acetylacetonate (Zr(acac)4) as a gelation agent and Zr~(4+) source, respectively. Acid catalyst activity of samples was tested for the production of acetyl salicylic acid from salicylic acid and acetic anhydride as precursors, The yield (64.0%) of acetylsalicylic acid was obtained from 50 mg of S-doped zirconia calcined at 550 °C and after a 3 h reaction, was comparably higher than the yield of the reaction (13.3%) in the absence of a catalyst and under the same reaction condition.
机译：在蔗糖和乙酰丙酮锆（IV）（Zr（acac）4）作为胶凝剂和Zr〜（4+）源的存在下，通过溶胶-凝胶法制备了纳米级的纯S掺杂的氧化锆。测试了样品的酸催化剂活性，以水杨酸和乙酸酐为前体制备了乙酰水杨酸，从50 mg 550℃煅烧的S掺杂氧化锆中获得了乙酰水杨酸的产率（64.0％）。在相同的反应条件下，没有催化剂的情况下，反应3 h的反应收率（13.3％）相对较高。

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