2results about How to "Improve electron donating ability" patented technology

The application belongs to the technical field of display, and particularly relates to an arylamine compound and application thereof. The arylamine compound provided by the application has the structure shown in the figure, and different substituents are combined to form a specific parent nucleus structure. In the structure, the meta benzene is connected with the 1-position dibenzofuran or the 1-position dibenzothiophene to form a structure with specific steric hindrance, which not only makes the electron cloud distribution transfer to the N atom to improve the electron donating ability, but also effectively changes the molecular packing to form a stable thin film. Under the synergistic action of various groups, the hole transport capacity of the material is improved, and the carrier transport is more efficient and balanced. The arylamine compound is applied to a light-emitting auxiliary layer or other functional materials of an organic electroluminescent device, and can better match other layers, so that the organic electroluminescent device has a lower driving voltage, a higher light-emitting efficiency and a longer service life.

A method for preparing a cobalt-based semi-crystalline adsorbent belongs to the field of nanomaterials and environmental materials preparation. This method, based on the addition of auxiliary reagents, effectively improves the electron-donating characteristics of the cobalt-based semi-crystalline adsorbent and enhances its adsorption capacity for heavy metal ions by simultaneously introducing electron-rich terephthalic acid and urea into the system. The invention utilizes auxiliary reagents to adjust the pH of the system while simultaneously promoting the deprotonation process of terephthalic acid and maintaining the coordination activity of urea. This facilitates the rapid self-assembly and assembly process between organic ligands and metal ions at room temperature, ensuring the sufficient introduction of organic ligands with abundant lone pair electrons into the cobalt-based semi-crystalline adsorbent, thereby improving its electron-donating capacity and enhancing its adsorption and removal capacity for heavy metal ions.