3results about How to "High electrical conductivity" patented technology

A method for preparing a capacitive deionization anode for phosphate adsorption and desorption, and its application, belong to the field of inorganic phosphorus wastewater adsorption and enrichment. This invention aims to solve the problems of existing adsorption materials, such as low phosphate adsorption capacity, difficulty in reusing the adsorbent, or poor conductivity. Method: 1. Preparation of a PEDOT / YMOF-NH2 composite material; 2. Preparation of a capacitive deionization anode. Application: It is used for the adsorption and desorption of phosphates in phosphate-containing water. This invention is used for the preparation of a capacitive deionization anode for phosphate adsorption and desorption.

This application discloses a method for preparing a graphene / carbon nanotube composite slurry and its application, relating to the field of electrochemical sensing. The method includes: S1, placing multi-walled carbon nanotubes in concentrated sulfuric acid, reacting, washing with deionized water until neutral, and drying to obtain carboxylated carbon nanotubes; S2, adding the carboxylated carbon nanotubes to thionyl chloride, stirring the reaction, rinsing with tetrahydrofuran, and drying to obtain acyl chloride-based carbon nanotubes; S3, mixing the following components: 4.0-6.0% multi-walled carbon nanotubes, graphene microsheets... 0.2-1.0%, dispersant 0.5-1.0%, melamine 3.0-6.0%, balance NMP; S4, add graphene oxide / carbon nanotube filter material to dilute hydrochloric acid solution for acid washing and purge with nitrogen bubbles, stir evenly, filter, dry, and repeat 4 times. Mix and disperse each component in N-methylpyrrolidone to improve the uniformity of the mixture. Carbon nanotubes and graphene microsheets are uniformly dispersed in NMP to reduce the possibility of agglomeration and break up the already agglomerated groups.

The utility model relates to the technical field of ferrite processing, in particular to a resistance measuring device for ferrite processing, which comprises a base, a pressing piece and two conductive contacts, and is characterized in that the base is provided with a placing plane for placing ferrite; the pressing piece is movably arranged above the base in the vertical direction perpendicular to the containing plane. The two conductive contacts are arranged on the pressing piece in a spaced mode in the transverse direction perpendicular to the vertical direction, the two conductive contacts are connected through a double-end lead screw made of non-conductive materials so that the distance between the two conductive contacts in the transverse direction can be adjusted, and the two conductive contacts can be connected with two probes of a universal meter respectively. According to the utility model, through the cooperative use of the base, the pressing piece and the two conductive contacts, multiple groups of resistance data of the ferrite can be measured and obtained, and the average resistance value of the ferrite can be obtained by integrating the multiple groups of resistance data, so that the measurement precision is effectively improved.