Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

Zhou Jian; Liu Zhicheng; Wang Yangdong; Gao Huanxin; Li Liyuan; Yang Weimin; Xie Zaiku; Tang Yi

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Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

机译：分层MFI沸石催化剂中酸性位点的可及性和利用效率得到提高，可有效改善扩散性

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The determination of utilization degree and effective diffusivity is very important to the design of a new hierarchical zeolite catalyst. By employing Thiele modulus analysis in the cumene cracking reaction, it is found the effective diffusion length in hierarchical MFI zeolite was obviously shortened. The enhanced adsorption capacity and accelerated diffusion rate of cumene molecules in hierarchical MFI zeolite remarkably promoted accessibility to the internal surface and obviously improved the utilization of acid sites.

机译：利用率和有效扩散率的确定对新型分级沸石催化剂的设计非常重要。通过在枯烯裂化反应中采用Thiele模量分析，发现分层MFI沸石中的有效扩散长度明显缩短。分层MFI沸石中异丙苯分子的吸附能力增强和扩散速度加快，显着提高了其内表面的可及性，并明显提高了酸位的利用率。

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《RSC Advances》 |2014年第82期|共4页
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Zhou Jian; Liu Zhicheng; Wang Yangdong; Gao Huanxin; Li Liyuan; Yang Weimin; Xie Zaiku; Tang Yi;
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正文语种 eng
中图分类化学;
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1. Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement [J] . Zhou Jian, Liu Zhicheng, Wang Yangdong, RSC Advances . 2014,第82期

机译：分层MFI沸石催化剂中酸性位点的可及性和利用效率得到提高，可有效改善扩散性
2. Creating Accessible Active Sites in Hierarchical MFI Zeolites for Low-Temperature Acid Catalysis [J] . ChemCatChem . 2016,第19期

机译：在分层MFI沸石中创建可访问的活动站点，用于低温酸催化
3. Quantification of enhanced acid site accessibility in hierarchical zeolites - The accessibility index [J] . Thibault-Starzyk F., Stan I., Abelló S., Journal of Catalysis . 2009,第1期

机译：分级沸石中增强的酸性位点可及性的量化-可及性指数
4. PREVENTION OF FAST DEACTIVATION OF ZEOLITES IN BIOMASS UPGRADING BY UTILIZING MFI TYPE NANOSHEET CATALYST [C] . Mengze Xu, Sridhar Budhi, Calvin Mukarakate American Chemical Society National Meeting Exposition . 2015

机译：利用MFI型纳米液催化剂预防生物量升级中的沸石快速失活
5. Part I. Interactions between singlet (1Delta)oxygen and nitroxides as seen by electron paramagnetic resonance methods: Quenching, chemically induced electron spin polarization, and applications in oximetry. Part II. Photolysis of dibenzylketones sorbed in MFI zeolite in the presence of spectator molecules: Cage effect, kinetics and external surface sites characterization. [D] . Moscatelli, Alberto. 2008

机译：第一部分：单峰（1Delta）氧与一氧化氮之间的相互作用（通过电子顺磁共振方法观察）：淬灭，化学诱导的电子自旋极化及其在血氧测定法中的应用。第二部分在观众分子存在下吸附在MFI沸石中的二苄基酮的光解作用：笼效应，动力学和外表面位点表征。
6. Sonochemically prepared hierarchical MFI-type zeolites as active catalysts for catalytic ethanol dehydration [O] . Ł. Kuterasiński, U. Filek, M. Gackowski, 2021

机译：Sonochemically制备的等级MFI型沸石作为催化乙醇脱水的活性催化剂
7. Creating accessible active sites in hierarchical MFI zeolites for low-temperature acid catalysis [O] . Erigoni, Andrea, Newland, Stephanie, Paul, Geo, 2016

机译：在用于低温酸催化的分层mFI沸石中产生可接近的活性位点

Enhanced accessibility and utilization efficiency of acid sites in hierarchical MFI zeolite catalyst for effective diffusivity improvement

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