نتایج جستجو برای: solvothermal
تعداد نتایج: 1791 فیلتر نتایج به سال:
IRMOF-3 nano/microcrystals with controllable morphologies and sizes were successfully obtained by a simple solvothermal method. The shape evolution of IRMOF-3 crystals from cube to truncated cube, cuboctahedron, truncated octahedron and finally to octahedron was achieved by adjusting the amount of surfactant. The surfaces of the IRMOF-3 nano/microstructures are affected by the reaction temperat...
Synthesis, crystal structure and magnetic properties of a mixed-valence pentanuclear cobalt complex.
Solvothermal reaction of Co(OAc)2.4H2O with H4L (H4L = 2-((2-hydroxybenzylidene)amino)-2-hydroxymethylpropane-1,3-diol) in MeCN gave a mixed-valence pentanuclear cobalt complex [Co5(HL)2(H2L)2(OAc)2].2.5H2O. Crystal structural analysis revealed that two Co(III) ions were linked to a central triangular Co(II) core through HL(3-) and H2L(2-) hydroxyl groups. Magnetic measurements showed interesti...
Zinc oxide (ZnO) is a promising material which gained increasing interest in recent years owing to its preparation methods and remarkable performances. The paper presents the most common techniques for the synthesis of ZnO nanoparticles, such as mechanochemical process, precipitation, sol-gel method, solvothermal and hydrothermal processes. Due to their optical, mechanical, chemical and electri...
New π-conjugated oligomers with high crystallinity were prepared from the simple solvothermal reaction of squaric acid and diaminopyrenes. The oligomers were bonded at the 1,3- and 1,6-positions of the pyrene units, oligo(sq-alt-1,3py) and oligo(sq-alt-1,6py), which greatly affected their planar configuration and resulting mechanochromic properties. Oligomers containing a charge transfer (CT) c...
....................................................................................................................................... ix Chapter 1: Introduction ........................................................................................................ 1 1.1 General Introduction ........................................................................................... 1 1.2 Moti...
Solvothermal treatment using glycerol effectively removes chlorine from polyvinyl chloride (PVC). Additive-free PVC was dechlorinated by with in an autoclave at 200–240 °C. Liquid coexistent a red powder after the reaction 200 At temperatures of 220 and 240 °C, liquid disappeared, carbonization proceeded to form black powder. In this reaction, directly converted into glycidol. Epichlorohydrin a...
The combination of two different Fe III salts in a solvothermal reaction with triethanolamine results the formation high symmetry [FeIII15] cluster whose structure conforms to centred, tetrakis hexahedron.
In order to develop detector working in gas phase for organophophorous molecules, resonant microcantilevers surfaces were chemically modified with pristine and functionalized TiO 2 nanorods. By using a solvothermal synthesis method...
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