Results 111 to 120 of about 31,953 (237)
Journal of Mathematical and Fundamental Sciences, 2013 Hierarchically porous MFI zeolites (ZSM-5) have been synthesized by hydrothermal treatment in the presence of trialkoxysilylated-derivatives of nonionic poly(oxyethylene) alkyl ether or alkyl quaternary ammonium cation as mesopore-generating agent, along
Rino R. Mukti +9 more
doaj +1 more source
On the Influence of Catalyst Mesopore Structure in the Catalytic Cracking of Polypropylene
ChemistryEurope, Volume 4, Issue 2, February 2026.Catalytic cracking is a promising approach to convert polyolefin plastics into hydrocarbons. Herein, the effect of catalyst pore size in polypropylene cracking using amorphous silica–alumina with identical external acidity, but varying mesopore diameters and particle sizes, is isolated. Mesopore size has minimal effect on activity, indicating that high
Sebastian Rejman +7 more
wiley +1 more source
Energy Science &Engineering, Volume 14, Issue 2, Page 808-830, February 2026.ABSTRACT The selective hydrogenation of oxygenated compounds is crucial for the conversion of biocrude into platform chemicals. However, the presence of stable oxygenated species, cyclohexanone, in biocrude limits possess a challenge for easy conversion process.
Ishaq Kariim +4 more
wiley +1 more source
An Investigation on the Catalytic Degradation of Dyeing Wastewater with Fe-ZSM-5 Zeolite
Yankuang ceshi, 2013 A homogeneous ferrous salt catalyst was used in the traditional Fenton oxidation technology for dyeing wastewater. However, it was difficult to avoid the secondary pollution and loss of ferrous ions.
BI Hai-chao +3 more
doaj
Photo-Catalytic Activity of ZnO Supported on H-ZSM-5 Zeolite to Reduce Cr(VI) from Aqueous Solutions [PDF]
, 2016 Aims: The application of photocatalytic processes to remove heavy metals in aqueous solutions and industrial wastewater are regarded as extremely effective, clean and without producing waste methods.
Dehghani, R. +4 more
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Particle &Particle Systems Characterization, Volume 43, Issue 2, February 2026.The molecular enrichment in the cavity of hollow mesoporous silica particles is quantitatively investigated. Three different types of particles (spherical, core‐shell, and hollow particles) with comparable sizes are prepared to estimate the molecular concentration in the hollow cavity.
Shin Saito +6 more
wiley +1 more source
Insect Science, Volume 33, Issue 1, Page 441-452, February 2026.We report three ca. 100 million‐year‐old lacewing larvae with extraordinarily large stemmata. One of them additionally has a very wide head, which represents a previously unknown morphology. The arrangement of the stemmata indicates stereoscopic vision in these predatory larvae.
Carolin Haug +9 more
wiley +1 more source
Síntesis y caracterización de materiales aluminosilicatos compuestos ZSM-5/MCM-41 [PDF]
Avances en Química, 2010 molecular sieves ZSM-5/AlMCM-41 were synthesized by hydrothermal crystallization, under synthesis conditions employed for pure phases. Solids were characterized by several techniques.
Pedro Pérez +3 more
doaj
Selective Production of 2-Phenylhexane from Benzene and n -Hexane Over Pt- and Ga-Modified Zeolites [PDF]
, 2018 Alkylation of benzene with n-hexane was performed over H-ZSM-5 and monometallic Ga- and Pt- and bimetallic Ga- and Pt-modified ZSM-5. The influence of the particle size and the method of incorporation of Ga (during hydrothermal synthesis, by solid-state ...
Danilina, Nadiya +3 more
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Hydrothermal Synthesis of Nanocrystalline Zeolite Using Clear Solution [PDF]
, 2014 Nano size particles such as nanocrystalline zeolites have unique properties relative to conventional micrometer sized zeolite crystals. The reduction of particle size to the nanometer scale leads to substantial changes in properties of zeolite which make
Muhammad, S. (Syaifullah)
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