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Synthesis and Applications of porous glass

Journal of Shanghai Jiaotong university(Science) 2019年第6期24卷 681-698页

作者： ZHU Benbi ZHANG Zhijian ZHANG Wang WU Yu ZHANG Jianzhong IMRAN Zada ZHANG Di State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China Jushi Fiberglass Research Institute Jushi Group Co.Ltd.Jiaxing 314500ZhejiangChina Research Institute of Chemical Defense Academy of Military Sciences PLA ChinaBeijing 102205China

porous materials have received significant attention for catalyst,electrochemical energy storage,sensing and compound *** surface area and connected inner channel make porous materials outstanding in the applications of catalyst,batteries and *** is a traditional material and has the advantages of high stability and other physical *** combining the advantages of porous materials and glass,porous glass has been researched widely and applied to many leading-edge fields,such as batteries and *** review presents common methods for synthesizing porous glass,including phase separation process(PSP),direct leaching process(DLP)of acid,sintering and so *** main steps for fabrication of each process are *** recent applications are support,capturer and matter transport,and they are highlighted in this *** directions for preparing these materials are also discussed.

关键词： porous glass ordered structure hierarchical structure

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The Dynamics of Acid Treatment in the Preparation of porous glass

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Journal of Wuhan University of Technology(Materials Science) 2003年第4期18卷 10-13页

作者：郭丽萍 LIYing-xia CHENYong-xi LEIJia-heng WuhanUniversityofTechnology WuhanInstituteofPhysicsandMathematics ChinaScienceAcademy

The phase-separation glasses with composition of Na 2O(9.0)B 2O 3(25.0)-SiO 2(66.0)(in mole ratio)were leached with hydrochloric acid,and porous glasses were *** dynamics of the acid treatment was *** effects of treatment time,temperature and acid concentration on the acid treatment process were studied using HCl as treatment *** dynamics equation and apparent activation energy obtained in acid treatment process were dw/dt=a/2t and E=57.74 kJ·mol -1,*** constants of the reaction rate at different temperatures were *** the basis of experimental data the mechanism of acid treatment process and the source of swollen stress,which was the main stress during treatment process,were discussed.

关键词： porous glass phase-separation glass dynamics of reaction diffusion

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ELECTRICAL CONDUCTIVITY AND PHASE TRANSITIONS IN KDP-AND ADP-porous glass NANOCOMPOSITES

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Journal of Advanced Dielectrics 2011年第3期1卷 337-343页

作者： A.SIERADZKI A.CIZMAN R.POPRAWSKI T.MARCINISZYN E.RYSIAKIEWICZ-PASEK Institute of Physics Wroclaw University of Technology Wybrzeze Wyspianskiego 2750-370 WroclawPoland

The results of dielectric and dilatometric measurements of ADP and KDP-porous glass composites are *** stated on dilatometric studies that in ADP-porous glass nanocomposites the phase transition temperature decreases with decreasing of average size of *** negative jump of volume at phase transition region in ADP-porous glasses is *** was found that for KDP embedded into porous glasses nonmonotonous dependence of phase transition temperature on pores sizes *** conductivity of ADP/KDP composites is significantly higher than in bulk *** obtained values of activation energies are typical for proton movement.

关键词： Electrical conductivity KDP ADP porous glass

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Liquid Phase Hydrogenation of Benzalacet0phen0ne:Effect of Solvent,Catalyst Support,Catalytic M etal and Reaction Conditions

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催化学报 2011年第8期32卷 1312-1322页

作者： Achim STOLLE[a] Christine SCHM?GER[a] Bernd ONDRUSCHKA[a] Werner BONRATH[b] Thomas F.KELLER[c] Klaus D.JANDT[c] [a]Institute for Technical Chemistry and Environmental Chemistry(ITUC) Friedrich-Schiller University JenaLessingstrasse 12D-07743 JenaGermany [b]R&D Chemical Process Technology DSM Nutritional ProductsP.O.Box 2676CH-4002 BaselSwitzerland [c]Institute of Materials Science and Technology(IMT) Friedrich-Schiller University JenaLobdergraben 32D-07743 JenaGermany

Innovative catalysts based on a "porous glass" support material were developed and investigated for the reduction of benzalace-tophenone. The easy preparation conditions and possibility to use different metals (e.g. Pd, Pt, Rh) for impregnation gave a broad variety of these catalysts. Hydrogenation experiments with these supported catalysts were carried out under different hydrogen pressures and temperatures. porous glass catalysts with Pd as the active component gave chemoselective hydrogenation of benzalacetophenone, while Pt- and Rh-catalysts tended to further reduce the carbonyl group, especially at elevated hydrogen pressures and temperatures. Kinetic analysis of the reactions revealed these had zero order kinetics, which was independent of the type of porous glass support and solvent used.

关键词： chalcone hydrogenation porous glass supported catalyst

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