10 results about "Electrochemical polymerization" patented technology

The invention concerns the development of molecularly imprinted polymer for label-free capacitive sensing application. The method outlined by the invention involves several steps: a) Pre-treating the surface of the working electrode; b) Electrochemical polymerizing a monomer solution in an electrolyte buffer containing the target template molecule to form an imprinting template film on the electrode surface; c) Washing the electrode to remove unbound molecules; d) Characterizing the formed imprinting template film by cyclic voltammetry in a supporting electrolyte solution to determine its half-wave potential; e) Forming the molecularly imprinted polymer electrode by removing the target template molecule from the synthesized polymer; f) Incubating the obtained molecularly imprinted polymer with the target template for a specified duration; g) Detecting the target template molecule using capacitance-derived electrochemical impedance spectroscopy. This method presents significant advantages in terms of specificity, sensitivity, and stability, rendering it highly applicable across numerous industries for enhancing detection, monitoring, and diagnostic capabilities.

This invention relates to the field of chemical separation materials technology, and specifically to a nitrogen-phosphorus co-doped starch-derived carbon and W 18 O 49 The method for preparing carboxylated polypyrrole integrated porous electrodes includes: synthesizing nano-W using a solvothermal method. 18 O 49 Using starch as the carbon source, sodium carboxymethyl cellulose as the pore-forming agent, and polyethyleneimine and phytic acid as nitrogen and phosphorus dopants respectively, nano-W 18 O 49 By mixing and molding, followed by freeze-drying and high-temperature carbonization, nitrogen-phosphorus co-doped starch-derived carbon and W were obtained. 18 O 49 A self-supporting porous electrode is obtained by electrochemical polymerization using a three-electrode system to deposit a carboxylated polypyrrole film on the electrode surface. This electrode features a three-dimensional porous structure, is binder-free, and integrates high specific capacitance, good conductivity, and ion-selective permeability. It is used in membrane capacitive deionization technology to treat uranium-containing wastewater, exhibiting high uranium removal rate, large electroadsorption capacity, short equilibrium time, and high membrane permeation flux, demonstrating broad application prospects.

This application discloses a method for preparing a high-entropy Prussian blue analogue composite flexible electrode material and a sodium-ion hybrid capacitor. First, disodium hydrogen phosphate, p-toluenesulfonic acid monohydrate, and pyrrole are dissolved in deionized water. Constant current electrochemical polymerization is then performed using carbon cloth as the working electrode to grow polypyrrole nanofibers in situ on its surface. Subsequently, high-temperature carbonization is carried out under an argon atmosphere to obtain a nitrogen-doped carbon nanofiber / carbon cloth substrate. Then, manganese salt, cobalt salt, nickel salt, copper salt, and iron salt are mixed with sodium citrate to prepare a mixed solution, which is then reacted with potassium ferricyanide solution. After aging, washing, and drying, a high-entropy Prussian blue analogue-loaded composite cathode material is obtained. This application constructs a hierarchical composite structure integrating flexible support, rapid conductivity, and efficient sodium storage, which can effectively shorten the ion diffusion path, improve the electron transport rate, and alleviate structural distortion during charging and discharging.

This invention discloses an imide derivative monomer containing electroactive groups, its preparation method, and its applications, belonging to the field of polymer materials technology. The imide derivative monomer has the following structure: [structure details omitted]. This imide derivative monomer contains electroactive groups such as triphenylamine and flexible ether bonds. It can prepare polyetherimides containing electroactive groups through electrochemical oxidative coupling polymerization, and can form a polyetherimide sizing layer on the surface of carbon fibers through in-situ electrochemical polymerization. This significantly improves the interfacial bonding strength between carbon fibers and thermoplastic resin matrices such as polyether ether ketones, as well as the mechanical properties of the composite material, while avoiding the high-temperature imidization step, making the process green and controllable. Furthermore, this imide derivative monomer and its polymer also possess excellent electrochromic properties, enabling the in-situ preparation of electrochromic films with high optical contrast, fast response, and good cycling stability on conductive substrates.

This invention discloses a novel electropolymerizable ionic liquid with an X-Y structure, wherein X includes at least one of aniline, pyrrole, and thiophene, and Y includes at least one of imidazole and pyridine. This ionic liquid allows for the electrochemical polymerization of monomer materials on the cathode surface via an in-situ formation process, achieving electrochemical in-situ coating of the cathode material. This effectively transports lithium ions while avoiding the impact of the high oxidation activity of high-voltage active materials on electrolyte stability, thereby preventing battery capacity loss.

This invention discloses a viologen-based electrochromic polymer, its preparation method, and its applications. The polymer has the chemical structure shown in Formula I. The polymer material of this invention can form a uniform thin film on a conductive substrate surface through electrochemical polymerization. When applied in electrochromic supercapacitors, it can achieve reversible color changes to visually reflect the energy storage state, while also possessing high specific capacitance and good cycle stability. This provides a new material option for the integration and practical application of electrochromic energy storage devices.

The application discloses a kind of polybenzodifuranone and its constant potential polymerization preparation method, belong to organic conductive polymer material preparation technical field, benzodifuranone (BFDO) and supporting electrolyte are dissolved in polar aprotic solvent, and electrolyte is obtained by mixing uniformly;With platinum metal electrode as working electrode and counter electrode, with saturated calomel electrode as reference electrode, three electrodes are connected with direct current power supply and are placed in the electrolyte, in air atmosphere, electrochemical polymerization reaction is carried out using constant potential method;After reaction, the reaction liquid is extracted and filtered, dried, to obtain polybenzodifuranone (PBFDO).The application uses constant potential electrochemical polymerization method, n-type conductive polymer polybenzodifuranone can be synthesized in air atmosphere in one step, without catalyst, high-temperature anaerobic environment and complex post-processing, the product conductivity is 1.157-18.28 S / cm.Process simplification, low cost, process controllable, can realize green scale preparation and industrialization application.

The application discloses a kind of high conductivity polybenzodifuran dione and cyclic voltammetry preparation method thereof, belong to organic conductive polymer material preparation technical field, method includes: benzodifuran dione (BFDO) monomer and supporting electrolyte are dissolved in polar aprotic solvent, obtain electrolyte;With platinum electrode immersed in electrolyte as working electrode and counter electrode, with saturated calomel electrode as reference electrode, constitute three-electrode system;In air atmosphere, cyclic voltammetry scanning is applied to working electrode, carries out electrochemical polymerization reaction, and polybenzodifuran dione (PBFDO) is directly generated on electrode surface;After filtration, washing and drying, high conductivity polybenzodifuran dione film is obtained;The film is n-type conductive polymer, and the conductivity is 2.2~428.3 S / cm.Cyclic voltammetry electrochemical polymerization method is used, and no additional oxidizing agent is needed, and the polymerization process completely depends on the electron transfer reaction on the electrode surface, to realize the direct polymerization of polybenzodifuran dione on electrode.

The application discloses a conductive polymer and application thereof in preparation of a flexible super capacitor, and electrochemical polymerization is carried out on EDOT monomers and EDOT-ME monomers, so that urethane groups are grafted into side chains of PEDOT polymers; hydrogen bond forces can be formed between polymer molecular chains through the urethane groups of the side chains, not only improving the interaction between the polymer chains, but also constructing rich pore structures; the material can maintain the integrity of the electrode material under mechanical stress, and can also maintain good electrochemical performance of the polymer material in the ion doping / dedoping process.