The preparation of nanomaterials and the research and application of bismuth based nanomaterial series in the field of lubrication were summarized,and the development about the bismuth based materials as additive in the field of tribology was introduced.
In this paper,crystal structures,preparation methods,doping and property improvement,calculating and analyzing of electronic structure of NaCo2O4,Ca3Co4O9 and Ca3Co2O6 were studied. The direction of future of oxide thermoelectrics was also discussed.
The details of the synthetic sequence followed for the preparation of all these compounds having almost all the structural features required for a compound to act as a potent insulin sensitizing agent are reported.
A New Method for the Preparation of Co3O4 Nanoparticles
The overall process involves three steps: preparation of insoluble carboxyl-containing grafted starch copolymer (ISC), formation of precursor (ISC-Co), decomposition of ISC-Co, and phase transition of Co3O4 nanoparticles.
Preparation and Evaluation of 3,5-Dinitrobenzoyl-Bonded Silica Gel Stationary Phase for HPLC
In this paper, a new preparation method of 3,5-dinitrobenzoyl-bonded silica gel stationary phase (DNB) for HPLC was developed by using N-(β-aminoethyl)-γ-aminopropyl-methyldimethoxy silane as coupling reagent.