1635 results about "Zinc ion" patented technology

A photo-electricity generating device is produced through the steps of: immersing an electrode and an electroconductive substrate in an aqueous solution comprising nitrate ions and zinc ions, supplying a current passing through a gap between the electrode and the electroconductive substrate to form a first zinc oxide layer on the electroconductive substrate, etching the first zinc oxide layer, and forming a semiconductor layer on the zinc oxide layer. The zinc oxide layer may preferably be formed in two zinc oxide layers under different electrudeposition conditions. In this case, the etching step may preferably be performed between steps for forming these zinc oxide layers. The zinc oxide layer is provided with an unevenness at its surface suitable for constituting a light-confining layer of a resultant photo-electricity generating device.

A zinc ion-exchanging battery device comprising: (A) a cathode comprising two cathode active materials (a zinc ion intercalation compound and a surface-mediating material); (B) an anode containing zinc metal or zinc alloy; (C) a porous separator disposed between the cathode and the anode; and (D) an electrolyte containing zinc ions that are exchanged between the cathode and the anode during battery charge/discharge. The zinc ion intercalation compound is selected from chemically treated carbon or graphite material having an expanded inter-graphene spacing d₀₀₂ of at least 0.5 nm, or an oxide, carbide, dichalcogenide, trichalcogenide, sulfide, selenide, or telluride of niobium, zirconium, molybdenum, hafnium, tantalum, tungsten, titanium, vanadium, chromium, cobalt, manganese, iron, nickel, or a combination thereof. The surface-mediating material contains exfoliated graphite or multiple single-layer sheets or multi-layer platelets of a graphene material.

An electroplating bath, a system, a process for, and the article obtained from, depositing a zinc-nickel ternary or higher alloy, a) zinc ions; b) nickel ions; and c) one or more ionic species selected from ions of Te⁺⁴, Bi⁺³ and Sb⁺³, and in some embodiments, further including one or more additional ionic species selected from ions of Bi⁺³, Sb⁺³, Ag⁺¹, Cd⁺², Co⁺², Cr⁺³, Cu⁺², Fe⁺², In⁺³, Mn⁺², Mo⁺⁶, P⁺³, Sn⁺² and W⁺⁶. In some embodiments, the system includes a divider forming a cathodic chamber and an anodic chamber, with the electroplating bath in the cathodic chamber only. In various embodiments, the zinc-nickel ternary and higher alloys may provide improved properties to the conductive substrates upon which the alloys are deposited.

A storage stable aqueous solution or aqueous gel of zinc ions in the presence of bicarbonate ions is disclosed. The solution comprises: (a) a source of zinc ion, (b) a source of a stabilizing anion which can stabilize soluble zinc and bicarbonate and/or carbonate in solution; (c) a source of bicarbonate ion; and (d) a solvent therefor. The solvent comprises a major proportion of water. The zinc salt is present in an amount suitable for the intended purpose; the stabilizing anion in an amount B of at least 1.2 equivalents per equivalent of zinc ion; and the bicarbonate ion cannot exceed certain levels which are related to the level of the stabilizing anion.

The present invention relates to an aqueous zinc-nickel electroplating bath, including water; nickel ion; zinc ion; at least one complexing agent; and at least one non-ionogenic, surface active polyoxyalkylene compound, wherein the bath has an alkaline pH. In one embodiment, the zinc ion, the nickel ion and the non-ionogenic surface active polyoxyalkylene compound are present at concentrations sufficient to deposit a zinc-nickel alloy comprising a substantially gamma phase.

The invention relates to a water system high-voltage mixed ion secondary battery. A positive pole material of the battery is a high-voltage battery positive pole material, namely zinc-lithium ferric manganese phosphate (LiFe1-xMnxPO4), the element zinc serves as the majority of a negative pole material, and electrolyte is a liquid-state or gel-state material which is formed by lithium bis(trifluoromethane sulfonimide) (LiTFSI) and soluble zinc salt as solute and water as solvent and has ionic conductivity. The battery is based on the energy storage mechanisms of a dissolution-out/deposition reaction of zinc ions (Zn2+) on a negative pole and a reversible embedding/ejection reaction of the zinc ions (Zn2+) on a positive pole, meanwhile, through the water-in-salt electrolyte formed by high-concentration LiTFSI, the electrochemical water decomposition process is inhibited, a potential window of the water system electrolyte is remarkably broadened, the zinc-lithium mixed ion secondary battery has the advantages of being high in capacity, long in cycling life, safe, environmentally friendly, low in cost and the like, and the battery can be applied to the fields such as consumer electronic equipment, electromobiles and large-scale energy storage.

The invention belongs to the technical field of batteries, and particularly relates to an aqueous zinc ion battery. The aqueous zinc ion battery comprises an anode, a cathode, an electrolyte and a diaphragm, wherein the diaphragm is arranged between the anode and the cathode; the cathode is a graphene-assisted zinc cathode; the electrolyte comprises a solvent and a solute, the solvent is water, and the solute comprises soluble zinc salt and manganese salt. Compared with the prior art, the aqueous zinc ion battery has the advantages that the graphene-assisted zinc cathode is applied to the aqueous zinc ion battery system; by adopting the graphene with excellent property and stable structure, the stability and conductivity of the zinc cathode are enhanced, so that the cycle property of the graphene-assisted zinc cathode is enhanced; especially, by adding the trace manganese salt and the corrosion inhibitor into the electrolyte, the problems of zinc corrosion, passivating and the like canbe effectively relieved; the cycle life of the graphene-assisted zinc cathode is further prolonged.

The utility model discloses an inorganic composite antimicrobial with zinc - rare earth and a preparation method and applications thereof. The antimicrobial uses natural or chemosynthetic ion exchange material as the carrier, and loads the double active centre of the zinc ions and the rare earth ions by an ion exchange method, wherein, the content of the zinc ions is 6.0 to 8.0wt%, the content of the rare earth ions is 2.0 to 4.0wt%. The antimicrobial exchanges the zinc ions and the rare earth ions into the carrier by means of a liquidoid or a solidoid ion exchange, and then the inorganic composite antimicrobial is prepared after a post treatment. Because having a double antimicrobial active centre of the zinc ions and the rare earth ions which can generate a synergistic effect, the antimicrobial has the advantages of broad antimicrobial spectrum, higher antimicrobial efficiency, good thermal stability and photostability, steady color and low cost; the antimicrobial is an ideal substitute for the silver-loaded inorganic antimicrobial, and can be added in plastic, rubber, fiber, paints, adhesive, paper or ceramic and other material for preparing antimicrobial functional material and products.

The present invention relates to an antimicrobial composition comprising an isothiazolinone, such as 1,2-benzisothiazolin-3-one, and a zinc compound selected from zinc salts, zinc oxides, zinc hydroxides or combinations thereof. Useful zinc salts include for example, oxides, sulfates, chlorides, and combinations thereof. In use, the zinc from the zinc compound enhances the antimicrobial activity to the isothiazolin-containing composition. This enhancement permits achieving the desired antimicrobial activity at a lower usage rate than is achieved using the isothiazolinone in the absence of the zinc compound. The antimicrobial composition can also contain co-biocides, such as pyrithiones, including zinc pyrithione or copper pyrithione.

The invention relates to an activated carbon fiber and a preparation method thereof. The compositions in weight percentage of the activated carbon fiber are: 80 to 95 percent of fiber-forming polymer, and 20 to 5 percent of functional additive component, wherein the fiber-forming polymer can be polyacrylonitrile, modified polyacrylonitrile, polyvinyl alcohol or regenerated cellulose fiber; and the functional additive component can be a superfine absorbent of supporting metal with the average diameter of between 0.01 and 20 mu meter; and the supporting metal can be one of a silver ion, a copper ion or a zinc ion. The preparation method comprises the following steps: a base material fiber-forming polymer fiber containing the functional additive component is prepared first, wherein the base material fiber can be a polyacrylonitrile fiber, a modified polyacrylonitrile, a polyvinyl alcohol fiber or a regenerated cellulose fiber base fiber; and different physical activation treatments or/and chemical activation treatments are carried out according to different base material fibers to produce the activated carbon fiber corresponding to the base material.

The invention provides an aqueous zinc-nickel alloy electroplating composition particularly useful in an electroplating method for depositing a zinc-nickel alloy layer on a substrate, wherein the deposited layer exhibits uniform nickel concentration and good aesthetics across a broad range of current densities. The electroplating composition comprises an electrolyte composition and an organic composition. In one embodiment, the electrolyte composition comprises a zinc ion source, a nickel ion source, a pH buffering agent and at least one additional salt, and the organic composition comprises a Class I nickel brightener, a Class II nickel brightener, an aromatic carboxylic acid, an aldehyde or ketone compound, and a non-ionic or anionic surfactant. The electroplating composition is particularly free of chelators and free ammonium-producing agents.

The invention relates to a water-based zinc-manganese single flow battery; a positive electrode active material is an oxide of manganese, a metal composite oxide, a metal oxide or a carbon material, a negative electrode is a zinc electrode, an electrolyte solution is a nearly neutral aqueous solution containing a zinc salt and a manganese salt, positive electrode active ions and negative electrode active ions can coexist in one electrolyte solution, and an ion exchange membrane is not required for separating the positive electrode and the negative electrode; in processes of charging and discharging, the electrolyte solution constantly flows between an electrolyte solution storage tank and an electric pile through a pipeline under pushing of a liquid pump. During charging, zinc ions are deposited onto a negative electrode current collector from the electrolyte solution, the zinc ions and manganese ions are co-embedded into the positive electrode active substance at the same time, and the manganese ions are subjected to oxidation deposition; during discharging, the negative electrode deposited zinc is dissolved into the electrolyte solution, and the positive electrode manganese oxide is partially reduced and dissolved and is extricated to the electrolyte solution with the zinc ions simultaneously. The battery has the outstanding characteristics of simple manufacture, relatively high specific energy and specific power, low cost, long cycle life, environmental friendly and the like, and is widely applied in electric power, transportation, electronics and other fields.

The invention relates to a pyrro-quinoline quinine (PQQ) sodium salt derivative and a preparation method thereof, belonging to the field of pharmacy. In the preparation method, PQQ is used as a raw material, and an acid-base neutralization reaction with PQQ is carried out in a basic solvent of sodium hydroxide to prepare the PQQ sodium salt derivative represented in the structural formula (I), wherein R1, R2 and R3 can be identical or different and respectively represents H, ammonium ion (NH3), potassium ion, sodium ion, magnesium ion, calcium ion or zinc ion, and at least one of R1, R2 and R3 is sodium ion. The invention has mild reaction conditions, easy product refining and purification, simple preparation steps and high yield more than 80%. The PQQ sodium salt derivative has the functions of inhibiting GSK-3 activity, reducing senile pigment formation in a transgenic mouse brain, reducing tau protein phosphorylation and the like. Thus, the PQQ sodium salt derivative can be medically used for treating senile dementia and other diseases.

The invention discloses a cyanide-free zinc dipping solution and a cyanide-free electroplating method of filter aluminium alloy by using the cyanide-free zinc dipping solution. The cyanide-free zinc dipping solution, measured as per liter of cyanide-free zinc dipping solution, comprises 450-600 ml of plating bath solution and 400-550 ml of water, wherein the plating bath solution comprises 20-40 g/L zinc ions, 2-10 g/L nickel ions, 0.001-0.400 g/L copper ions, 0.05-1.00 g/L iron ions, 1-4 g/L cobalt ions, 80-200 g/L alkali metal hydroxide, 50-100 g/L main complexing agent, 13-40 g/L auxiliary complexing agent, and 0.07-2.00 g/L crystallization refiner. Zinc dipping and electroplating on materials with high silica content can be carried out by using the cyanide-free zinc dipping solution by just conducting zinc dipping once, the operation is simple, and the control is easy.

An alkaline zinc secondary battery in accordance with the present invention comprises a separator layer comprising a gel electrolyte comprising a water absorbent polymer and an alkaline aqueous solution, disposed between a negative electrode comprising at least one selected from the group consisting of zinc and zinc oxide and a positive electrode. Because the separator layer is in a gel form, transfer of zinc ions is limited. Thereby, deformation of the negative electrode and generation of dendrite due to charge and discharge of the battery are substantially inhibited. Moreover, since impurity ions such as nitrate ions become less prone to move, self-discharge of the battery is also inhibited.

Example embodiments provide a method for preparing zinc oxide nanostructures. According to the method, zinc oxide nanostructures are prepared by dipping a substrate having a zinc (Zn) seed layer thereon in an aqueous solution of hexamethyleneamine and dropwise adding an aqueous solution of zinc nitrate to the aqueous solution of hexamethyleneamine. In addition, zinc ions can be continuously supplied in a constant amount as the reactions of the reactants proceed to prepare high-quality zinc oxide nanostructures at a high growth rate. Furthermore, zinc oxide nanostructures can be prepared on a large-area substrate at a low processing temperature regardless of the substrate material. Example embodiments also provide zinc oxide nanostructures prepared by the method.

The invention relates to a hybrid energy storage device with a zinc ion battery and a supercapacitor. The hybrid energy storage device with the zinc ion battery and the supercapacitor comprises a core body, an electrolyte and a shell body. The core body is composed of a positive electrode, a negative electrode and a separator between the positive electrode and the negative electrode. The positive electrode and the negative electrode are respectively formed by active substances, a conductive agent and a current collector, wherein the active substances and the conductive agent adhere to the current collector. The two positive electrode active materials are provided. The first positive electrode active material is a composite metal oxide, and the second positive electrode active material is a carbon material capable of conducting reversible adsorption of ions. The two negative electrode active materials are provided. The first negative electrode active material is zinc and the second negative electrode active material is a carbon material capable of conducting reversible adsorption of ions. The electrolyte is composed of zinc salt and deionized water. The composite metal oxide is simple in preparation technology and environmentally friendly.

The invention relates to a calcium zinc heat stabilizer used for PVC. The calcium zinc heat stabilizer comprises a compound formed by a hydroxyl phenyl carboxylic acid, imidazole ligands and zinc ions, wherein the molecular formula of the compound is Zn(L1)2(L2)2, wherein L1 represents salicylic acid; L2 represents imidazole or L2 represents 1,2-dimethyl imidazole; a frequently-used fatty acid calcium, fatty acid zinc, an auxiliary stabilizer and a lubricating agent. Compared with a calcium zinc heat stabilizer prepared by using the fatty acid zinc and the like as raw materials, the calcium zinc heat stabilizer provided by the invention can effectively improve initial dyeing property and prolong zinc burnt blackening time of a PVC product, has easily available raw materials and is convenient for preparation.

The present invention relates to an oral composition containing a zinc compound containing free available zinc ion and at least one stabilized or stable E_h raising compound distributed in an oral vehicle. The present invention further relates to a method of inhibiting the formation of sulfur containing anions and preventing a reduction in the E_h of the oral cavity. A method of reducing oral malodor and gingivitis and periodontitis is also provided by this invention.

The invention discloses a Cu-Zn catalyst, a precursor, a preparation method and an application thereof. The Cu-Zn catalyst takes a mesoporous molecular sieve as a carrier to load active components comprising cuprum and zinc. The preparation method comprises the following steps: the mesoporous molecular sieve is added into a water solution holding cuprum ions and zinc ions for soaking, filtered to obtain solid filter cakes which are mixed with a bonder and a bonding aid for prilling, then dried, roasted and cooled, thus obtaining the precursor of the Cu-Zn catalyst of the invention, or the mesoporous molecular sieve also can be mixed with the bonder and the bonding aid for prilling, added to the water solution holding the cuprum ions and the zinc ions for soaking, then dried, roasted and cooled. The precursor of the Cu-Zn catalyst of the invention is deoxidized in a reduction atmosphere to obtain the Cu-Zn catalyst of the invention. The Cu-Zn catalyst of the invention not only has good catalyzing efficiency, but also has good stability, high catalytic activation and relatively long service life, thus being able to be applied to the reaction of high temperature and high pressure catalytic hydrogenation of fatty acid ester or the preparation of fatty alcohol by hypercritical catalytic hydrogenation.