Results 21 to 30 of about 128,137 (298)

Effect of Zr Modification on NH₃-SCR Reaction Performance of Cu-Ce/SAPO-34 Catalysts

Applied Sciences, 2023
Molecular sieve catalysts containing transition metals have been attracting attention for their potential applications in various fields, including environmental and industrial catalysis.
Chongfei Liu, Xuetao Wang, Lili Xing, Xingxing Cheng, Xingyu Zhang, Haojie Li, Mengjie Liu   +6 more
doaj   +1 more source

Adsorption Properties of ZSM-5 Molecular Sieve for Perfluoroisobutyronitrile Mixtures and Its Fluorocarbon Decomposition Products

Chemosensors, 2022
Perfluoroisobutyronitrile (C4F7N), an environment-friendly insulating gas, has excellent insulating properties and has the potential to be used in gas-insulated equipment when mixed with CO2.
Wei Liu, Xinjie Qiu, Xiaoxing Zhang, Shuangshuang Tian, Zian Yuan, Weihao Liu   +5 more
doaj   +1 more source

Synthesis of micron-particle-size HZSM-5 zeolite with different Si/Al ratio and its catalytic activity for toluene methanol alkylation reaction

矿业科学学报, 2023
HZSM-5 molecular sieve is one of the commonly used catalysts for the alkylation of toluene with methanol to para-xylene (PX). This study introduces a one-step method to directly prepare microscale HZSM-5 catalysts with suitable pore structure and acidity.
Pan Xu, Huang Xin, Wang Ruizhuang, Zhang Haiyong, Wei Hui, Xu Deping, Liu Yi   +6 more
doaj   +1 more source

Influence of Pyrolysis Parameters on the Performance of CMSM [PDF]

, 2009
Carbon hollow fiber membranes have been prepared by pyrolysis of a P84/S-PEEK blend. Proximate analysis of the precursor was performed using thermogravimetry (TGA), and a carbon yield of approximately 40% can be obtained.
Campo, Marta C., Magalhaes, Fernao D., Mendes, Adelio M., Nijmeijer, Kitty, Visser, Tymen, Wessling, Matthias   +5 more
core   +15 more sources

Synthesis of uniform two-dimensional non-layered α-MnSe by molecular sieves modified chemical vapor deposition

Results in Physics, 2023
Large-area and uniform two-dimensional (2D) non-layered α-MnSe was successfully synthesized via the molecular sieve modified chemical vapor deposition (CVD).
Meijie Zhu, Hua Xu, Zuoquan Tan, Le Wang
doaj   +1 more source

Vapor-phase transport synthesis of ZnAPO-34 molecular sieve [PDF]

, 1999
ZnAPO-34 molecular sieve can be synthesized by the vapor-phase transport technique using triethylamine as a structure-directing ...
Gavalas, George R., Zhang, Lixiong
core   +1 more source

Enantiomerically enriched, polycrystalline molecular sieves [PDF]

, 2017
Zeolite and zeolite-like molecular sieves are being used in a large number of applications such as adsorption and catalysis. Achievement of the long-standing goal of creating a chiral, polycrystalline molecular sieve with bulk enantioenrichment would ...
Brand, Stephen K., Daeyaert, Frits, Davis, Mark E., Deem, Michael W., Ma, Yanhang, Orazov, Marat, Schmidt, Joel E., Terasaki, Osamu   +7 more
core   +2 more sources

An Efficient Synthesis of Ginsenoside Rg5 via Conversion of PPD Type Saponins: Unusual Application of 4A Molecular Sieves

Natural Product Communications, 2021
Ginsenoside Rg5 is a rare secondary ginsenoside with good pharmacological activity. However, preparation of Rg5 is time consuming, gives a low yield and has poor selectivity and efficiency.
Cheng Le-qin, Ye An-qi, Zhang Hao-ran, Zhang Yue-wei, Li Ling   +4 more
doaj   +1 more source

Molecular sieves [PDF]

Endeavour, 1964
AbstractThe zeolites form a numerous group of structurally diverse, porous, crystalline aluminosilicates. The naturally‐occurring zeolites arise by hydrothermal action of solutions in basaltic rocks and also as large sedimentary deposits. The naturally‐occurring species have been augmented by a number of synthetic zeolites without any known natural ...
openaire   +1 more source

The Adsorption of VOCs by Honeycomb Ceramics Loaded with Molecular Sieves

Journal of Chemistry, 2022
In order to improve the adsorption performance of molecular sieve honeycomb ceramics for VOCs, the author proposes a research method for the adsorption performance of VOCs based on the honeycomb ceramics loaded with molecular sieves.
Ping Zhang
doaj   +1 more source