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首页> 外文期刊>Journal of industrial and engineering chemistry >Effect of aging temperature during refluxing on the textural and surface acidic properties of zirconia catalysts
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Effect of aging temperature during refluxing on the textural and surface acidic properties of zirconia catalysts

机译：氧化锆催化剂回流过程中老化温度的影响

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摘要

Hydrous zirconia was synthesized via precipitation method, and effect of aging temperature during refluxing (30-100 degrees C) precursor solution was investigated. We found that the aging temperature influenced on structural and textural properties of the hydrous zirconia, with variations in the textural properties leading to changes in the surface properties of calcined zirconia, including the acid functionalities. In addition, ZrO2 aged at 100 degrees C exhibited the highest specific surface area and the highest Lewis and Bronsted acidities among the samples. Finally, enhanced catalytic activity was also observed for the ZrO2 samples prepared at higher aging temperatures in the dehydration of iso-propanol. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：通过沉淀法合成含水氧化锆，研究了回流期间的老化温度（30-100℃）前体溶液的效果。 我们发现，对含水氧化锆结构和纹理性质影响的老化温度，具有纹理性质的变化，导致煅烧氧化锆的表面性质变化，包括酸性功能。 此外，在100摄氏度下老化的ZrO 2表现出最高的特异性表面积和样品中最高的lewis和刚性酸性。 最后，对于在较高老化温度下在异丙醇脱水的较高老化温度下制备的ZrO 2样品，也观察到增强的催化活性。 （c）2017年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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