Results 31 to 40 of about 180,400 (354)
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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International Journal of Coal Science & Technology, 2020 The fly ashes (Class F and C) have been successfully used as the main substrates in the hydrothermal syntheses of Na-A, Na-P1, Na-X and sodalite zeolites. Both ashes and their derivatives after milling with magnetic field grinder were used.
Piotr Kunecki +4 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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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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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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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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Natural vs. Synthetic Zeolites
, 2020 This brief review article describes the structure, properties and applications of natural and synthetic zeolites, with particular emphasis on zeolites obtained from natural or waste materials. Certainly, such short work does not exhaust the complexity of
M. Krol
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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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Analysis and control of acid sites in zeolites
Applied Catalysis A: General, 2020 The exceptional catalytic performance of zeolites is due to the presence of active sites in a shape-selective environment, i.e., in micropores with molecular dimensions.
Ana Palčić, V. Valtchev
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