2013年11月
Synthesis of Sulfonic Acid Functionalized Silica Honeycombs
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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- 巻
- 52
- 号
- 44
- 開始ページ
- 15293
- 終了ページ
- 15297
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ie400541d
- 出版者・発行元
- AMER CHEMICAL SOC
A honeycomb-type silica monolith was functionalized with sulfonic acid groups to synthesize a solid acid catalyst for flow reaction systems. The sulfonic acid groups were introduced via anchoring of 3-mercaptopropyltrimethoxysilane (MPTS) on the silica surface and subsequent oxidation using a H2O2 solution. The honeycomb-type monolith used as the substrate was prepared using ice crystals as a template and was found to have a high open frontal area of approximate to 85% and flow-through macropores (approximate to 27 mu m in diameter) that are surrounded by silica walls (approximate to 2 mu m in thickness). The catalyst was tested by the liquid phase esterification of ethanol with acetic acid at 333 K in a batch reactor as well as a flow reactor. The catalyst was found to exhibit about 2-fold higher catalytic activity than Amberlyst-15 in a batch reactor. The catalyst also showed a stable catalytic activity for 24 h in a flow reactor.
- リンク情報
- ID情報
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- DOI : 10.1021/ie400541d
- ISSN : 0888-5885
- Web of Science ID : WOS:000326774700008