86results about How to "Improve electrical activity" patented technology

Methods can include using a doorbell to wirelessly communicate with a remotely located computing device. Doorbells can include a speaker, a microphone, a camera, and a button to sound a chime. A doorbell shipping mode can detect whether the doorbell is electrically coupled to an external power source. Methods can include entering a setup mode or a standby mode in response to detecting electricity from the external power source.

Methods can include using a doorbell to wirelessly communicate with a remotely located computing device. Doorbells can include a speaker, a microphone, a camera, and a button to sound a chime. Some embodiments include using a doorbell to close an electrical circuit that has a sound output device in a way that precludes the sound output device from inappropriately emitting a notification sound.

The invention discloses a cellulose/carbon nano tube composite nanofiber membrane preparation method, and belongs to an electroactive material preparation technology. The method comprises the following processes of: firstly, acidizing carbon nano tubes so as to enable CNT-COOH to be generated on the surfaces of the carbon nano tubes, and dispersing the carbon nano tubes into deionized water to prepare a carbon nano tube solution; dissolving bacterial cellulose into trifluoroacetic acid so as to obtain a transparent light-yellow bacterial cellulose trifluoroacetic acid solution; and mixing the carbon nano tube solution with the bacterial cellulose trifluoroacetic acid solution and electrospinning, wherein the high-voltage electrostatic regulation scope is 10-30kV, the flow rate of an injection pump is 0.05-0.3mL/h, and the receiving distance is 10-20cm. The preparation method is simple in process, and an obtained cellulose/carbon nano tube composite nanofiber membrane has the advantages of high electric conductivity and good electroactivity.

The invention discloses an electrochemical detection method for a pesticide imidacloprid based on a polypyrrole/reduced graphene oxide (PPy/RGO) modified glassy carbon electrode. The method comprises the following steps: firstly, carrying out electrochemical reduction to prepare the polypyrrole/reduced graphene oxide (PPy/RGO) modified glassy carbon electrode; and secondly, utilizing the prepared PPy/RGO modified glassy carbon electrode to the electrochemical detection of the pesticide imidacloprid. The PPy/RGO modified glassy carbon electrode provided by the invention has high sensitivity, good stability, wide linear range and low detection limit on the detection of the imidacloprid.

An electrochemical method and system for removing nitrate and ammonia in effluents, using an undivided flow-through electrolyzer, said electrolyzer comprising at least one cell, each cell comprising at least one anode and one cathode, the cathode being in a copper/nickel based alloy of a high corrosion resistance and a high electroactivity for nitrate reduction to ammonia and the anode being a DSA electrode of a high corrosion resistance and a high electroactivity for ammonia oxidation to nitrogen in presence of chloride.

The invention discloses an immuno-electrochemical paper chip. The immuno-electrochemical paper chip comprises a bottom plate, a reference electrode layer and a working electrode layer, wherein the working electrode layer comprises a plurality of central shunting regions, a plurality of micro-channels, a detection region and a plurality of working electrodes; each micro-channel is used for leading a sample to be detected from the detection region to the corresponding central shunting region; each working electrode is positioned in the corresponding central shunting region; different antibodies are fixed onto the surfaces of the working electrodes and are used for performing multi-parameter joint detection on FSH, LH and E2 respectively. The immuno-electrochemical paper chip is in a multi-layer combined design, functions of sampling, separating, immuno-detection and the like are achieved on a single paper chip, the operation is simple, and the detection is rapid; meanwhile, an electrochemical immuno-detection method is directly adopted, secondary antibodies do not need to be added, needed reagents are few, and manual operation errors can be reduced.

A Fe/Co/N/MWCNTs catalyst is obtained as follows: an iron-ion-doped polyaniline (PANI) and carbon nanotube (MWCNT) compound is heated at 900DEG C to obtain an iron-containing catalyst FeNC; and the FeNC containing a cobalt salt is calcined at different temperatures to obtain the composite catalyst FeCoNC. With the increase of calcination temperature, the surface structure of the catalyst tends tobe uniform. The surface structure of the catalyst with the calcination temperature of 500DEG C is most even and smooth, and sintering occurs when the temperature is above 500DEG C. A higher nitrogen content can improve the ORR electroactivity of the catalyst. The catalyst with the calcination temperature of 500 DEG C has highest ORR electrocatalytic activity. ORR initial potentials in acidic and alkaline solutions are 0.63 and-0.12V (vsSCE), respectively, current densities are 11.67 and 9. 83mAmg-1@-0.3V(vsSCE) respectively, and the catalyst has good thermal stability and catalytic activity stability. The catalyst obtained by stepwise adding Fe and Co and calcining at 500 DEG C after addition of the Co has excellent ORR electrocatalytic activity.

The invention discloses a nano-composite material used for tissue repair, which comprises segmented copolymer with electrical activity, nano-hydroxyapatite and normal tissue repair materials; wherein the segmented copolymer comprises aliphatic polyester and ailine pentamer, and the normal tissue repair materials comprises poly (lactide-co-glycolide), polylactide or polycaprolactone. The invention also discloses a preparation method of the nano-composite materials used for tissue repair, which comprises the following steps of: (a) dissolving the normal tissue repair material in a solvent, then adding the nano-hydroxyapatite into the solvent, and uniformly stirring to obtain a substrate material; and (b) dissolving the segmented copolymer into the solvent, then adding to the substrate material and mixing uniformly, and then precipitating and removing the solvent. The nano-composite material used for the tissue repair has the advantages of nontoxicity, biodegradability, processibility, sufficient mechanical strength, favorable electrical activity, and biocompatibility.

The present invention provides a conducting polymer, a synthesis method thereof, and an electroactive electrode covered with the said conducting polymer. The conducting polymer is synthesized as follows: use the polybasic acid as dopant and crosslinking agent, and polymerize monomers into conducting polymer hydrogel. The monomers are selected one or more from pyrrole or its derivatives, thiophene or its derivatives, aniline or its derivatives. The acid group of the polybasic acid contains phosphate or polybasic acid which contains at least two substituents per molecule selected from sulfate, nitrate or carboxylic in which the molecular weight of at least one acid group is no more than 800. The mole ratio of the acid group in polybasic acid to monomers of the conducting polymer is 1:12-12:1. The preparation applied in the invention is simple, and need not to import any impurity. The conducting polymer hydrogel has high ionic conductivity, super hydrophilicity, and good biocompatibility.

The invention discloses an integrated system for solar-driven microbial electrolysis cell strengthening treatment on rural domestic sewage. In the system, the integrated device comprises an anaerobic tank, a facultative tank, an aerobic tank and a secondary sedimentation tank. Each two zones are separated by a stainless steel plate and the stainless steel plates are communicated at intervals from top to bottom. The bottom of the anaerobic tank is provided with a water inlet. The top of the sedimentation tank is provided with a water outlet. An aeration head is arranged in the aerobic tank and is connected to an air pump. A guide plate and a mud guard are arranged in the secondary sedimentation tank. A sludge outlet of the secondary sedimentation tank is connected to a sludge flowing direction inlet of the aerobic tank by a sludge reflux pump. An anode carbon felt is arranged in the anaerobic tank. A cathode carbon felt is arranged in the aerobic tank. An anode and a cathode are connected to a storage battery by stainless steel wires. A solar cell panel provides powder for the storage battery. The integrated system greatly improves the original biological treatment technology, reduces an operation cost by natural solar energy and provides a novel rural domestic sewage treatment technology.

The invention provides an amide polymer derived one-dimensional nitrogen-doped nano-carbon electrode material and a preparation method. The one-dimensional nitrogen-doped nano-carbon electrode material, which can be used as an electrode material of a lithium/sodium ion battery and a super capacitor, is prepared, so that the original amide engineering plastic with a low added value can be used in the field of green energy, the cost is effectively reduced, and the electrochemical performance is improved. The one-dimensional nitrogen-doped nano-carbon electrode material is characterized in that the one-dimensional nitrogen-doped nano-carbon electrode material is prepared by the raw material of an amide polymer or an amide polymer composite material through high-temperature carbonization underthe protection of an inert gas, wherein the amide polymer is an amide polymer with a one-dimensional nano structure, which is obtained by carrying out low-temperature salification on anhydride and amine monomers and then carrying out solvothermal reaction; the amide polymer composite material is an amide polymer composite material with a one-dimensional nano structure obtained by carrying out low-temperature salification on anhydride and amine monomers, mixing salt with a one-dimensional carbon nano material and carrying out solvothermal reaction.

The invention provides a soluble electroactive polymer prepared from aniline pentamer crosslinked chitosan with two terminated carboxyl groups, and a preparation method. The invention provides a series of crosslinked polymer containing electroactive aniline pentamer, which are synthesized from aniline pentamer with two terminated carboxyl groups via two synthesis methods, wherein the first synthesis method condensates activated carboxyl group of aniline pentamer with amido of chitosan in the mixture solvent of acetate water solution and organic solvent to obtain product, and the second method condensates protected chitosan and aniline pentamer in organic solvent to obtain product. The crosslinked chitosan has the advantages of aniline pentamer and natural macromolecule, has electric activity and biological activity, which can be dissolved in acid water solution, be degraded biologically, while the degraded product can be discharged externally. The inventive product is mainly used as biological medical material, particularly as tissue engineering scaffold material of nerve and heart.

The invention provides grafted copolymer which is provided with a structure represented by the formula (1) or the formula (II). The grafted copolymer has good water solubility and good electrochemistry response characteristics due to the fact that the grafted copolymer is provided with electroactive aniline oligomer segments. Prepared grafted copolymer is adsorbed to the surfaces of materials which are subjected to preprocessing layer by layer so as to obtain the layer-by-layer decorative materials which have an adjustable composite layer number and good electroactivity. The layer-by-layer decorative materials, used as biomedical polymer materials, can be better applied to the field of tissue engineering like artificial organs or tissue repair representing by the formula (1) or the formula (II).

The present invention relates to a shell core type Poly(3,4-ethylenedioxythiophene)/polyethelene alcohol fiber composite film, and a preparing method thereof. The preparing method comprises the following steps: preparing a polyvinyl alcohol water solution, adding sodium lauryl sulfate into the solution, finally adding ethylenedioxythiophene monomer, ultrasonic dispersing and then mixing for forming the homogeneous emulsion. The emulsion is executed with electrostatic spinning for obtaining the fiber with the uncontinuous shell core type spindle-shaped structure, wherein the ethylenedioxythiophene monomer is positioned at the core layer. The spinning film is placed into the chlorine for sealed-placing for 24h for polymerizing the ethylenedioxythiophene monomer of the core layer and obtaining the pale-blue film. The invention has the advantages of: simple and feasible method, realized polymerization in the nanometer reactor composed of spinning fiber shell layer, high concentration of PEDOT in the final film up to 45% (w/w PVA), and better electroactivity. Furthermore the shell core type Poly(3,4-ethylenedioxythiophene)/polyethelene alcohol fiber composite film of the invention is synthesized with the bioavailability of the PVA and is likely used for the field of biological sensor.

The present invention relates to a composite (13), characterized in that it comprises:

• • at least one ferroelectric organic polymer with relaxation properties, and
  • at least one phthalate-based plasticizer.

An electrode plate for a battery comprising a plurality of electrodes in a grid where the grid defines a plurality of spaces. A paste disposed in the spaces has a top surface and a bottom surface. The paste is narrowed in the space, defining a distance between the top surface of the paste and the bottom surface of the paste that is less than the thickness of the plate over the electrodes. A retention layer of porous fabric is impressed on the top and/or bottom surface of the paste. Electrolyte disposed in electric communication with the electrodes.

Ferromanganese phosphate intermediates, lithium ferromanganese phosphate, and methods of making the same are disclosed. The intermediate has a chemical formula of (NH4)Mn(1-x-y)FexMyPO4.H2O, wherein the x is equal to 0.05 to 0.5 and y is equal to 0 to 0.2; the M is a divalent metal and is selected from one or more of Mg, Ca, Co, Mn and Zn. The intermediate has a crystal structure with an orthogonal structure, belongs to a Pmnm (59) space group, and has a two-dimensional nanosheet structure in product morphology.

The invention relates to an epoxy resin composite coating based on ZIF-L, a preparation method and a coating product, and relates to the technical field of coatings and surface coatings. According to the main technical scheme, the ZIF-L-based epoxy resin composite coating is prepared from two-dimensional metal organic framework material ZIF-L nanoparticles, 8-hydroxyquinoline terminated aniline tripolymer and an epoxy resin coating body. In the ZIF-L-based epoxy resin composite coating, the mass fraction of the two-dimensional metal organic framework material ZIF-L nanoparticles is 0.1-10 wt%, and the mass fraction of the two-dimensional metal organic framework material ZIF-L nanoparticles is 0.1-10 wt%. The mass of the 8-hydroxyquinoline terminated aniline tripolymer is 5 to 50 percent of the mass of the two-dimensional metal organic framework material ZIF-L nano-particles. The invention is mainly used for providing and preparing the ZIF-L-based epoxy resin composite coating with excellent antibacterial, antifouling and anticorrosive properties and a coating product, can prevent gram-negative bacteria and gram-positive bacteria, and has good poisoning and anti-adhesion effects on chlorella, phaeodactylum tricornutum and navicula.

A method for co-integrating wimpy and nominal devices includes growing source/drain regions on semiconductor material adjacent to a gate structure to form device structures with a non-electrically active material. Selected device structures are masked with a block mask. Unmasked device structures are selectively annealed to increase electrical activity of the non-electrically active material to adjust a threshold voltage between the selected device structures and the unmasked device structures.

The invention discloses a preparation method of a trace palladium-located catalyst. Meanwhile, the trace palladium-located catalyst has excellent catalytic activity for oxidation of ethanol. The preparation method comprises the following steps: firstly, loading nickel nanoparticles (nano-Ni/GP) with a certain size on the surface of graphene by using a two-dimensional film structure of the graphene; then making the nano-Ni/GP formed in this way react with a palladium chloride solution with a certain concentration, reducing Pd<2+> ions into palladium nanoparticles, oxidizing nickel into Ni<2+> and leaving from the surfaces of the nanoparticles to enter a solution; and performing in-situ uniform deposition on the formed palladium nanoparticles on the surfaces of unreacted nickel nanoparticles so as to form nickel nanoparticle-loaded palladium nanoparticles. Because the palladium nanoparticles are uniformly dispersed on the surfaces of the nickel nanoparticles, the dispersing degree of the palladium is extremely high; however, the palladium loading amount is very small; meanwhile, because the palladium nanoparticles are in mutual contact with the nickel nanoparticles, so-called 'dual-function effect' is formed, so that the electroactivity of the catalyst for the oxidation of ethanol is greatly enhanced.