Phenol Hydroxylation over Alkaline Treated TS-1 Catalysts
发表时间：2019-03-10
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- 论文类型：
- 期刊论文
- 第一作者：
- Chao, Pei-Yu
- 通讯作者：
- Tsai, TC (reprint author), Natl Univ Kaohsiung, Dept Appl Chem, 700 Kaohsiung Univ Rd, Kaohsiung 811, Taiwan.
- 合写作者：
- Tsai, Shang-Tien,Tsai, Tseng-Chang,Mao, Jingbo,Guo, Xin-Wen
- 发表时间：
- 2009-03-01
- 发表刊物：
- TOPICS IN CATALYSIS
- 收录刊物：
- SCIE、EI、CPCI-S
- 文献类型：
- J
- 卷号：
- 52
- 期号：
- 1-2
- 页面范围：
- 185-192
- ISSN号：
- 1022-5528
- 关键字：
- Alkaline treatment; TS-1; Phenol hydroxylation; Mesoporous zeolite
- 摘要：
- Alkaline treatment on TS-1 can selective remove silica from the framework while MFI zeolitic framework remains intact, which creates new large micropores or even mesopores and increases Si/Ti ratio in the alkaline treated TS-1. Among various alkaline hydroxide, CsOH treatment leads to partial destruction of MFI structure. All the desilicated TS-1 samples show enhanced phenol conversion and dihydroxylbenzene (DHB) yield in acetone solvent by two folds, which can be attributed to the higher Ti/Si ratio and improved diffusivity. Pore structure modified with alkaline treatment affects significantly reaction pathway and product selectivity. The initial product over the parent TS-1 and NaOH treated TS-1 is mainly 4-hydroxycyclohexa-2,5-dienone and catechol enriched DHB, respectively.
- 是否译文：
- 否
