Leonid A. Solovyov

TL;DR: In this article, the synthesis and precise structural characterization of highly ordered three-dimensional close-packed cage-type mesoporous silica is reported, which is proven to be commensurate with the face-centered-cubic Fm3m symmetry in high purity by a combination of experimental and simulated powder X-ray diffraction and transmission electron microscopy (TEM) analyses.

TL;DR: The results show that the flexible inorganic framework, high content of organic matrix, and nonpenetration of poly(ethylene oxide) segments may facilitate the structural evolution of ordered mesoporous silica materials with highly branched channels.

TL;DR: The X-ray diffraction structure modeling was employed for analysis of hexagonally ordered large-pore silicas, SBA-15, to determine their pore width independently of adsorption measurements to extend the original Kruk-Jaroniec-Sayari (KJS) relation.

TL;DR: In this article, a new method of full-profile refinement is developed on the basis of the minimization of the derivatives of the profile difference curve, which allows the derivation of structure parameters of even higher quality than those obtained by Rietveld refinement.

TL;DR: In this article, a small amount of chromium is added to the WO 3 matrix in order to enhance sensor response, which results in a shorter response time and improved sensor response to the lowest NO 2 concentrations tested.