Results 21 to 30 of about 57,071 (194)
Open Ceramics, 2023 The spatial resolution of transmission electron microscopes (TEMs) and scanning transmission electron microscopes (STEMs) has been drastically improved by introducing aberration correction.
Kaname Yoshida, Atsushi Nakahira
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Possibility of Modification of Zeolites by Iron Oxides and its Utilization for Removal of Pb(II) from Water Solutions [PDF]
Acta Montanistica Slovaca, 2004 Ion-exchange properties of cations from lattice and ions from solutions are characteristic for zeolites. Zeolites as sorbents are used in many branches of industry. Ion-exchange reactions of cations on zeolites have been a theme of many works.
Michal Lovás +4 more
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Cryogenic Hydrogen Adsorption onto H-, Li-, Na-Exchanged Zeolites with Various Si/Al Ratios
Adsorption Science & Technology, 2014 We investigated the hydrogen-adsorption properties of four zeolites (FAU-, MFI-, *BEA- and MOR-type zeolites) with various Si/Al ratios and charge cations (H + Li + or Na + ), focusing particularly on the measurements of isosteric heat of adsorption (Q ...
Masaru Kubo +3 more
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Efficient transesterification over two-dimensional zeolites for sustainable biodiesel production
Green Energy & Environment, 2020 Basic zeolites have shown great potential as efficient catalysts for biodiesel production in the transesterification reactions. However, conventional three-dimensional (3D) basic zeolites generally suffer from limited base sites and severe mass-transfer ...
Hao Pang, Guoju Yang, Lin Li, Jihong Yu
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Zeolite synthesis from low-cost materials and environmental applications: A review
Environmental Advances, 2020 Zeolites with the three-dimensional structures occur naturally or can be synthesized in the laboratory. Zeolites have versatile applications such as environmental remediation, catalytic activity, biotechnological application, gas sensing and medicinal ...
Abdul Khaleque +10 more
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Synthesis of ‘unfeasible’ zeolites [PDF]
Nature Chemistry, 2015 Zeolites are porous aluminosilicate materials that have found applications in many different technologies. However, although simulations suggest that there are millions of possible zeolite topologies, only a little over 200 zeolite frameworks of all compositions are currently known, of which about 50 are pure silica materials.
Michal Mazur +9 more
openaire +8 more sources
Synthesis And Characterization Of Zeolites From Sodium Aluminosilicate Solution [PDF]
, 2007 Rangkaian siri sintetik zeolit telah berjaya disintesiskan daripada larutan natrium aluminosilikat dengan kepekatan Si dari 1 hingga 8 molar menggunakan habuk halus silika (fumed silica) dan natrium aluminat.
Ibrahim, Siti Aida
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Ethiopian natural zeolites for photocatalysis
Bulletin of the Chemical Society of Ethiopia, 2015 The combination of zeolites and photochemistry has recently shown excellent results due to the special structure of the zeolites that helps a better use of the solar energy improving the selectivity of the chemical reactions carried out.
K. Guesh +4 more
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Acid and steric synergies in industrial Y zeolites for 9, 10-dihydroanthracene hydrocracking
Catalysis Communications, 2023 In the hydrocracking of 9, 10-dihydroanthracene, acid sites and their locations in the Y zeolites play crucial roles. Hydrogen transfer is the dominant reaction for the industrial Y zeolites with undeveloped mesopores whether at low or high temperatures.
Yanni Guo +7 more
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Kinetic and Thermodynamic Studies for Zeolites Synthesis
Zanco Journal of Pure and Applied Sciences, 2019 Zeolites are compounds which have many applications in chemistry and industry; therefore, studies of synthesis of zeolites are of great importance.
Rawand S. Abdullah +3 more
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