Thermal, hydrothermal and acid-base stability of highly siliceous MCM-41 mesoporous material

V R CHOUDHARY; S D SANSARE

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Thermal, hydrothermal and acid-base stability of highly siliceous MCM-41 mesoporous material

机译：高硅质MCM-41介孔材料的热稳定性，水热稳定性和酸碱稳定性

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摘要

Influence of various thermal, hydrothermal and acid/base treatments on the structural stability of highly siliceous MCM-41 mesoporous material has been thoroughly investigated. It has good stability towards thermal treatment up to 650°C, hydrothermaltreatment at low temperatures (≤ 400°C), and concentrations of steam (≤ 40 mol%), mechanical grinding and acid treatment (for 1 M HCl) but poor stability towards hydrothermal treatment with liquid water (even at 150°C) and base treatment, if it is dissolved in 0.1 M NaOH.

机译：彻底研究了各种热处理，水热处理和酸/碱处理对高硅质MCM-41介孔材料结构稳定性的影响。它对高达650°C的热处理，低温（≤400°C）的水热处理和蒸汽浓度（≤40 mol％），机械研磨和酸处理（对于1 M HCl）具有良好的稳定性，但对低温的稳定性较差如果溶解在0.1 M NaOH中，则用液态水进行水热处理（即使在150°C时）和碱处理。

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来源
《Proceedings of the Indian Academy of Sciences. Chemical Sciences》 |1997年第4期|p.229-233|共5页
作者
V R CHOUDHARY; S D SANSARE;
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作者单位

Chemical Engineering Division, National Chemical Laboratory, Pune 411008, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类化学;
关键词
Siliceous MCM-41; mesoporous zeolite; thermal and hydrothermal stability; acid-base stability;

机译：硅质MCM-41;介孔沸石;热和水热稳定性;酸碱稳定性;

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Thermal, hydrothermal and acid-base stability of highly siliceous MCM-41 mesoporous material

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