7 results about "Copper(II) hydroxide" patented technology

The invention relates to the development of low-cost functionalised copper (II) hydroxide (f-Cu(OH)2) electrodes for energy storage technologies and electrochemical devices. By means of surface functionalisation using high-energy X-rays, the energy storage capacity of the material is increased and an environmentally friendly production process is provided. The electrodes produced by this method can be used in applications such as supercapacitors, portable electronic devices, and renewable energy systems.

The invention relates to a system for converting, at least partially and without combustion, into electrical energy of chemical energy included in an electrolytic solution, being also a subject of the invention, comprising copper hydroxide, potassium hydroxide, ethanol with an alcohol content greater than 90% and double-distilled water. The system (1) comprises an electrolytic cell (3) for subjecting the aforesaid electrolytic solution to electrolysis, and a fuel cell (25) for producing electrical energy from the aeriform mixture generating in the electrolytic cell (3). A further solution (26), also electrolytic, exits from the fuel cell (25) and is re-introduced into the electrolytic cell (3) by means of the passage through a recovery tank (28). The invention further relates to a process, also actuatable by means of the aforesaid system (1), for converting, at least partially and without combustion, into electrical energy the chemical energy included in the aforesaid electrolytic solution.

The invention provides a flexible composite sodium metal negative electrode and a preparation method thereof, a sodium ion battery and electric equipment, and relates to the field of sodium ion batteries. The method comprises the following steps: carrying out acid leaching on a metal framework to obtain a treated framework; carrying out first mixing on the treated framework and first alkali liquor, and electrifying to obtain a framework coated with copper hydroxide; sequentially carrying out annealing treatment and heat treatment on the copper hydroxide coated framework under reducing gas to obtain a copper nanowire coated metal framework; carrying out second mixing and reaction on the copper nanowire coated metal framework, tartaric acid, bismuth nitrate and water, and then cleaning by adopting second alkali liquor and water to obtain a bismuth modified sodium-philic three-dimensional metal framework; and injecting the bismuth-modified sodium-philic three-dimensional metal skeleton into molten sodium metal or electrochemically depositing the sodium metal to obtain the flexible composite sodium metal negative electrode. The method has the advantages of being wide in raw material source, simple to operate, good in repeatability, low in cost, beneficial to large-scale production and the like, and has the possibility of practical application.

The application provides a porous organic polymer CIGS thin film battery tail gas purification agent and a preparation method thereof, and is characterized by being prepared from the following raw materials: the tail gas purification agent comprises 50-75 parts of a porous organic polymer, 10-35 parts of an active component, and 5-10 parts of a modifier in terms of weight parts, wherein the active component is copper hydroxide and / or permanganate. The tail gas purification agent of the application can be used at room temperature, has high desulfurization efficiency, can be used for removing tail gas discharged in the production process of copper indium gallium selenide thin film solar cell modules, can also be used for other desulfurization scenes, and has a good market prospect.

The CMC compound comprises carboxymethyl cellulose and copper hydroxide nanowires, the carboxymethyl cellulose and the copper hydroxide nanowires are cross-linked through covalent bonds to form a fibrous compound, and the electrochemical sensor is prepared through the following steps that 1, a glassy carbon electrode is taken, a surface oxidation film is removed, and the pretreated glassy carbon electrode is obtained; 2) taking a CMC (Carboxymethyl Cellulose) compound, and preparing to obtain a CMC compound dispersion liquid; 3) uniformly coating the surface of the pretreated glassy carbon electrode with the dispersion liquid, and naturally airing or drying to obtain a modified electrode; 4) taking the modified electrode as a working electrode, taking an auxiliary electrode and a reference electrode to form an electrochemical three-electrode system, placing the electrochemical three-electrode system in an acetate buffer solution of o-phenylenediamine and aspirin, and performing electrochemical scanning; 5, the electrochemical three-electrode system is placed in a Na2HPO4 solution for electrochemical scanning, and the electrochemical sensor MIP-Cu (OH) 2 / CMC / GCE is obtained.The electrochemical sensor can be used for trace detection of aspirin and has good selectivity, stability and reproducibility.

The application is suitable for the technical field of wastewater treatment and resource recovery, and provides a resource treatment method for electroplating waste liquid, which is aimed at the waste liquid containing copper sulfate and sulfuric acid generated in the copper electroplating process, copper sulfate is generated by adding copper oxide, copper hydroxide or copper carbonate and the like into the waste liquid to react with free sulfuric acid in the waste liquid; then, the saturated copper sulfate solution after reaction is controlled in speed and cooled to crystallize, and high-purity copper sulfate crystals are separated; the crystallization mother liquor can be recycled to the reaction step to further improve the recovery rate, and finally, the tail liquid enriched with impurities is subjected to pH adjustment and ion exchange resin adsorption treatment to realize standard discharge. The application can efficiently convert sulfuric acid and copper ions in the waste liquid into electronic-grade copper sulfate products which can be directly reused in the electroplating process, realizes high-value recovery of resources, and reduces disposal cost and environmental pressure.

This invention belongs to the field of electrocatalytic materials technology, specifically relating to a fullerol-modified nanoarray electrode material, its preparation method, and its application. This invention obtains fullerol-modified copper hydroxide nanomaterials by modifying the surface of a copper hydroxide nano-precursor material with fullerol, and finally, through a high-temperature gas-solid conversion reaction, obtains fullerol-modified copper-based compound nanomaterials. On the one hand, fullerol modulates the electronic structure of the copper-based material, thereby increasing the catalytic activity of Cu. + The species remain stable during the cathode electroreduction process; on the other hand, the fullerol's rich-OH groups can effectively regulate the interfacial water structure, reconstruct the hydrogen bond network, and promote water dissociation to generate active hydrogen. Benefiting from these advantages, the material prepared in this invention not only exhibits excellent electrocatalytic activity and selectivity in the field of electrocatalytic nitrate reduction to ammonia, but also demonstrates good long-term operational stability, providing a high-performance, low-cost electrocatalytic material solution for green ammonia synthesis technology.