The Experts below are selected from a list of 33 Experts worldwide ranked by ideXlab platform
J G A Luijten - One of the best experts on this subject based on the ideXlab platform.
-
investigations on organo tin compounds i the preparation of butyltin compounds by a Wurtz Reaction
Journal of Chemical Technology & Biotechnology, 2007Co-Authors: G Der J M Van Kerk, J G A LuijtenAbstract:The preparation of tetrabutyltin by a Wurtz Reaction from stannic chloride, butyl chloride and sodium is described. To avoid losses of tin, due to the reduction of stannic chloride, a cyclic process is developed: instead of stannic chloride, dibutyltin dichloride is used as a starting material in the Wurtz Reaction. The tetrabutyltin obtained is treated with stannic chloride to give dibutyltin dichloride, part of which has to be recycled. The disproportionation Reaction used in the preparation of dibutyltin dichloride from tetrabutyltin and the chlorination of hexabutyldistannane, obtained as a by-product in the Wurtz Reaction, are briefly dealt with.
Shigang Sun - One of the best experts on this subject based on the ideXlab platform.
-
structural characterization and electrochemical performance of macroporous graphite like c3n3 prepared by the Wurtz Reaction and heat treatment
RSC Advances, 2017Co-Authors: Hao Yin, Qixun Guo, Shigang SunAbstract:Macroporous graphite-like C3N3 (g-C3N3) with s-triazine rings as building blocks was synthesized by the Wurtz Reaction of C3N3Cl3 with sodium in autoclaves. The structure and electrochemical performance as a lithium ion battery anode of the obtained samples were then investigated. Structural characterization results reveal that the as-prepared samples show characteristic 002 basal plane diffractions and s-triazine rings structures with an N/C atomic ratio of about 1 : 1, indicating that the theoretical g-C3N3 has been successfully prepared. It was found that the heat treatment can help improve the initial coulombic efficiency and reversible capacity due to the decrease of the nitrogen content and the partial degradation and rearrangement of triazine rings. When used as an anode for Li-ion batteries, the g-C3N3 formed by heat treatment up to 600 °C exhibits a relatively good reversible capability and cycling stability (197.8 mA h g−1 at 100 mA g−1), with measurements superior to those of reported bulk g-C3N4 and other graphite-like carbon nitride analogues.
G Der J M Van Kerk - One of the best experts on this subject based on the ideXlab platform.
-
investigations on organo tin compounds i the preparation of butyltin compounds by a Wurtz Reaction
Journal of Chemical Technology & Biotechnology, 2007Co-Authors: G Der J M Van Kerk, J G A LuijtenAbstract:The preparation of tetrabutyltin by a Wurtz Reaction from stannic chloride, butyl chloride and sodium is described. To avoid losses of tin, due to the reduction of stannic chloride, a cyclic process is developed: instead of stannic chloride, dibutyltin dichloride is used as a starting material in the Wurtz Reaction. The tetrabutyltin obtained is treated with stannic chloride to give dibutyltin dichloride, part of which has to be recycled. The disproportionation Reaction used in the preparation of dibutyltin dichloride from tetrabutyltin and the chlorination of hexabutyldistannane, obtained as a by-product in the Wurtz Reaction, are briefly dealt with.
Hao Yin - One of the best experts on this subject based on the ideXlab platform.
-
structural characterization and electrochemical performance of macroporous graphite like c3n3 prepared by the Wurtz Reaction and heat treatment
RSC Advances, 2017Co-Authors: Hao Yin, Qixun Guo, Shigang SunAbstract:Macroporous graphite-like C3N3 (g-C3N3) with s-triazine rings as building blocks was synthesized by the Wurtz Reaction of C3N3Cl3 with sodium in autoclaves. The structure and electrochemical performance as a lithium ion battery anode of the obtained samples were then investigated. Structural characterization results reveal that the as-prepared samples show characteristic 002 basal plane diffractions and s-triazine rings structures with an N/C atomic ratio of about 1 : 1, indicating that the theoretical g-C3N3 has been successfully prepared. It was found that the heat treatment can help improve the initial coulombic efficiency and reversible capacity due to the decrease of the nitrogen content and the partial degradation and rearrangement of triazine rings. When used as an anode for Li-ion batteries, the g-C3N3 formed by heat treatment up to 600 °C exhibits a relatively good reversible capability and cycling stability (197.8 mA h g−1 at 100 mA g−1), with measurements superior to those of reported bulk g-C3N4 and other graphite-like carbon nitride analogues.
Zhongping Zhang - One of the best experts on this subject based on the ideXlab platform.
-
a Wurtz like Reaction to silicon nanowires
Materials Letters, 2008Co-Authors: Chun Wang, Yang Jiang, Zhongping ZhangAbstract:Silicon nanowires have been successfully synthesized via Wurtz-like Reaction, using silicon tetrachloride and sodium in the presence of Co/Ni catalyzer at 500 °C In this process the sodium was used as reductant and flux. Transmission electron microscopy (TEM) shows that the nanowire cluster is about 10 nm in diameter and length up to several microns, and well aligned along their longitude direction. High-resolution transmission electron microscopy (HRTEM) images demonstrates that as-synthesized nanowires interlayer spacing are around 0.31 nm, corresponding well to the (111) lattice parameter of diamond-like crystalline silicon. Based on the experimental results, the possible Wurtz Reaction mechanism of the silicon nanowires (SiNWs) has been properly proposed.
