Vitezslav Zima

TL;DR: In this paper, the selective oxidation of 5-hydroxymethyl-2-furaldehyde (HMF) to furan-2,5-dicarboxaldehyde (FDA) has been studied under different conditions, in terms of reaction temperature, oxidant agent (air, oxygen and their pressure), type of solvent (water, organic), in the presence of heterogeneous catalysts based on VOPO 4 ·2H 2 O (VOP).

TL;DR: The structure of Ca(HOOCC(6)H(4)PO(3)H)(2) was solved from X-ray powder diffraction data by an ab initio method using a FOX program and is monoclinic with one-dimensional ribbons forming basic building blocks.

TL;DR: In this paper, the preparation of multi-walled carbon nanotubes (CNTs) by direct synthesis and the melt-quenching method was described, which was characterized by high-resolution transmission electron microscopy (HRTEM), TEM/energy-dispersive X-ray spectroscopy, low energy electron excited X -ray spectra, Raman spectraopy, spectroscopic ellipsometry, microhardness, and impedance spectra.

TL;DR: In this article, a new kind of ion-conducting glasses based on GeS2-Ga2S3-AgI system is prepared, and the structural contributions to the ionic conductivity of the glasses are discussed.

TL;DR: In this paper, two reversible phase transitions of monohydrate zirconium phosphate were observed at about 143 and 257°C and the connected enthalpic effects were 3.8±0.2 and 2.7± 0.1 kJ/mol, respectively.