Topic
MCM-41
About: MCM-41 is a research topic. Over the lifetime, 2355 publications have been published within this topic receiving 91416 citations.
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TL;DR: In this article, the reaction methodology for C-H bond amination of benzene catalyzed by Mn(II)-dien (ampy) immobilized organo modified MCM-41 in the presence of hydroxylamine in acetic acid-water medium is described.
25 citations
TL;DR: In this paper, a core-shell composite of HY and MCM-41 as a catalysts in a bench-scale reactor ramped from room temperature to 500°C and 350°C (catalyst bed), aiming to enhance the formation of petrochemicals by transformation of the bulky aromatics to valuable aromatics.
25 citations
TL;DR: In this article, the feasibility of using mesoporous molecular sieves (MCM-41) as supports for palladium-based catalysts for methane combustion was investigated, and it was found that the addition of La and Ce decreased their activity.
Abstract: This work aimed at studying the feasibility of using mesoporous molecular sieves (MCM-41) as supports for palladium-based catalysts for methane combustion. The effects brought about by the chemical composition as well as by the presence of cerium and lanthanum were investigated. The MCM-41 structures were found to be thermally stable under air: the MCM-41 is stable until 1273 K while the [Al]-MCM-41 resists up to 1173 K. Silicate-based catalysts are more active than the aluminosilicate-supported Pd samples; while no changes were observed on the structure of the materials during the catalytic test, it was found that the addition of La and Ce decreased their activity. The catalytic activity was correlated with the hydrophobic character of the supports, and with the smaller temperature of PdO reduction presented by the catalysts.
25 citations
TL;DR: Urea bridged organic-inorganic hybrid mesoporous SiO2 materials (U-BSQMs) were synthesized through a sol-gel procedure by co-condensation of bis(triethoxysilyl propyl) urea (BSPU) under basic conditions using cetyltrimethylammonium bromide (CTAB) as organic template as discussed by the authors.
24 citations
TL;DR: In this article, the n-butane isomerization reaction on sulfated zirconia (SZ) supported on MCM-41 mesoporous molecular sieve was studied at various reaction temperatures in the presence of hydrogen.
24 citations