نتایج جستجو برای: mcm 41 supported catalyst

تعداد نتایج: 324330  

2011
Maximilian Hemgesberg Gunder Dörr Yvonne Schmitt Andreas Seifert Zhou Zhou Robin Klupp Taylor Sarah Bay Stefan Ernst Markus Gerhards Thomas J J Müller Werner R Thiel

A Mobil Composition of Matter (MCM)-41 type mesoporous silica material containing N-propylacridone groups has been successfully prepared by co-condensation of an appropriate organic precursor with tetraethyl orthosilicate (TEOS) under alkaline sol-gel conditions. The resulting material was fully characterized by means of X-ray diffraction (XRD), N(2)-adsorption-desorption, transmission electron...

Journal: :Frontiers in bioengineering and biotechnology 2015
Elena Boccardi Anahí Philippart Judith A. Juhasz-Bortuzzo Ana M. Beltrán Giorgia Novajra Chiara Vitale-Brovarone Erdmann Spiecker Aldo R. Boccaccini

The design and characterization of a new family of multifunctional scaffolds based on bioactive glass (BG) of 45S5 composition for bone tissue engineering and drug delivery applications are presented. These BG-based scaffolds are developed via a replication method of polyurethane packaging foam. In order to increase the therapeutic functionality, the scaffolds were coated with mesoporous silica...

Journal: :Processes 2021

Praseodymium (Pr)-promoted MCM-41 catalyst was investigated for the catalytic decomposition of methyl mercaptan (CH3SH). Various characterization techniques, such as X-ray diffraction (XRD), N2 adsorption–desorption, temperature-programmed desorption ammonia (NH3-TPD) and carbon dioxide (CO2-TPD), hydrogen reduction (H2-TPR), photoelectron spectrometer (XPS), were carried out to analyze physico...

Journal: :Angewandte Chemie 2022

Mesoporous silica is a versatile material for energy, environmental, and medical applications. Here, the first time, we report flame aerosol synthesis method class of mesoporous with hollow structure specific surface area exceeding 1000 m 2 /g. We show its superior performance in water purification, drug carrier, thermal insulation. Moreover, propose general route to produce nanoshell supported...

Journal: :ASEAN Journal of Chemical Engineering 2006

Journal: :Journal of chromatography. A 2009
Ruijun Tian Lianbing Ren Huaijun Ma Xin Li Lianghai Hu Mingliang Ye Ren'an Wu Zhijian Tian Zhen Liu Hanfa Zou

We report the development of a combined strategy for high capacity, comprehensive enrichment of endogenous peptide from complex biological samples at natural pH condition. MCM-41 nanoparticles with highly ordered nanoscale pores (i.e. 4.8nm) and high-surface area (i.e. 751m(2)/g) were synthesized and modified with strong cation-exchange (SCX-MCM-41) and strong anion-exchange (SAX-MCM-41) groups...

2016
Yang Teng Lijiao Li Gang Xu Kai Zhang Kaixi Li

Three kinds of inorganic alkali are introduced into tetraethylenepentamine (TEPA)and polyethyleneimine (PEI)-modified MCM-41 as the CO2 adsorbents. FT-IR and TGA are used to characterize the surface groups and the thermal stability of adsorbents. Chemical titration method is used to measure the alkali amounts of adsorbents. Thermo-gravimetric analysis with 10% CO2/90% N2 as the simulated flue g...

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