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期刊论文 3

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吸附 1

纳米多孔材料 1

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高压吸附 1

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Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation methods

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

《化学科学与工程前沿(英文)》 2008年 第2卷 第2期   页码 150-154 doi: 10.1007/s11705-008-0036-x

摘要: CuO/SBA-16 catalysts were prepared by two different routes – the conventional impregnation method and the modified impregnation method with pH adjustment. These catalysts were characterized by X-ray diffraction (XRD), atomic absorption spectrometry (AAS), N physisorption and hydrogen temperature programmed reduction (H-TPR) measurements which reveal that the cubic cage-like () pore structure of the parent SBA-16 molecule sieves was well maintained throughout the synthesis. After introduction of Cu, a different CuO dispersion exists on these catalysts. The CuO/SBA-16 prepared by modified impregnation method has a single highly dispersed CuO which is considered as a highly efficient species for hydroxylation of phenol with HO. CuO/SBA-16 prepared by the conventional impregnation method shows the presence of bulk CuO species which is undesirable for this reaction.

关键词: different     CuO/SBA-16     temperature     physisorption     introduction    

纳米多孔储气材料的物理吸附特性研究进展 Review

Katie A. Cychosz,Matthias Thommes

《工程(英文)》 2018年 第4卷 第4期   页码 559-566 doi: 10.1016/j.eng.2018.06.001

摘要:

评估纳米多孔材料的吸附性能并确定它们的结构表征,对于将这类材料用于包括气体储存在内的许多应用至关重要。气体吸附法可用于此表征,因为它可以评估从微孔到中孔的各种孔径。在过去的20 年中,关于有序纳米多孔材料中流体的吸附和相行为的知识以及基于统计力学的最先进的方法的创新和发展,如分子模拟和密度泛函理论,都取得了重大进展。再结合高分辨率的亚临界和超临界流体吸附实验程序,使物理吸附结构表征取得了显著进步。笔者不仅讨论了流体在具有明确孔隙结构的各种纳米多孔材料中基础吸附机理的一些重要和中心特征,还讨论了这些特征对促进物理吸附表征和储存气体应用的重要性。

关键词: 吸附     表征     高压吸附     纳米多孔材料    

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene with carbon dioxide

Xiaohong LI, Wenying LI,

《化学科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 142-146 doi: 10.1007/s11705-009-0233-2

摘要: TiO-AlOmixed oxides with different compositions ranging from 40wt-% to 95wt-% of TiO were prepared by sol-gel method and impregnated with different amounts of VO. Supports and catalysts were characterized by X-ray diffraction (XRD), physisorption, temperature preprogrammed reduction (H-TPR), and ammonia temperature programmed desorption (NH-TPD). TiO content in the support had obvious effect on the crystal structure, texture characteristic, acid property, and catalytic activity in dehydrogenation of ethylbenzene (EB) with carbon dioxide. The highest catalytic activity was acquired when the TiO content was 50 wt-%.

关键词: desorption     different     TiO-AlOmixed     physisorption     ethylbenzene    

标题 作者 时间 类型 操作

Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation methods

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

期刊论文

纳米多孔储气材料的物理吸附特性研究进展

Katie A. Cychosz,Matthias Thommes

期刊论文

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene with carbon dioxide

Xiaohong LI, Wenying LI,

期刊论文