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: It is suggested that formation of intergrown aggregates from the colloidal nanobeta particles provides own highly developed textural mesoporosity that makes the contribution of the diffusional alleviation of the support negligible.
30 citations
TL;DR: In this paper, the pore structures, surface properties, and local atom environments of hexagonal and cubic Ti-containing mesoporous products were extensively characterized using X-ray diffraction, magic angle spinning nuclear magnetic resonance, AAS, XPS, ultraviolet-visible, and adsorption of nitrogen and water vapor techniques.
30 citations
TL;DR: In this paper, the rope morphology of the MCM-41 mesoporous material was characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray powder diffraction (XRD), and nitrogen adsorption-desorption measurement.
30 citations
TL;DR: In this paper, pure and Ni2+, Fe3+, Co2+ and Cr3+ ions were prepared rapidly in reflex condensers under microwave irradiation for about 1.h.
30 citations
TL;DR: In this article, an iron-substituted MCM-41 materials were synthesized via a hydrothermal method with in situ incorporation of Fe(III) oxalate complex under various basic conditions.
Abstract: Iron-substituted MCM-41 materials (Fe-MCM-41) have been synthesized via a hydrothermal method with in situ incorporation of Fe(III) oxalate complex under various basic conditions. The resulting Fe-MCM-41 samples were characterized by X-ray diffraction, N2 adsorption measurement, and UV–Vis spectrometry. By controlling initial synthesized pH, the Fe-MCM-41 with highly ordered hexagonal mesoporous structures and high iron content (Si/Fe = 20) could be obtained. The iron species in Fe-MCM-41 samples mainly coexisted in isolated iron and highly dispersed iron oxide nanoclusters. Activity and stability of the obtained catalyst were evaluated on the wet peroxide oxidation of phenol under mild reaction conditions (<80 °C, ambient pressure). The Fe-MCM-41 with highly ordered mesoporous structure and high Fe content appeared to be the most interesting catalysts for phenol degradation owing to its high organic mineralization, low sensitivity to leaching Fe out and good oxidant efficiency.
30 citations