39 results about "Potassium ethyl xanthate" patented technology

The invention discloses a method for manufacturing a solar cell comprising an electron transport layer and a hole transport layer. The method comprises the steps of sequentially preparing a substrate, an anode, the hole transport layer, an active layer and a cathode, wherein the hole transport layer is PEDOT:PSS; and preparing the electron transport layer between the active layer and the cathode, wherein the electron transport layer is a polymer in the structure represented by general formula (I), the degree of polymerization of the polymer can be any integer within 1-300, and the manufacturing method of the polymer comprises the steps of firstly, obtaining a compound 2 through decarboxylation nitration of a compound 1, reducing into a compound 3, then diazotizing, and reacting with potassium ethyl xanthate to produce a compound 4; secondly, diazotizing aromatic amine 5, and reacting with sodium iodide to synthesize an aromatic iodo-product 6; and thirdly, reducing the compound 4 into thiophenol 7, and dissolving with aromatic chloride 8 or the aromatic iodo-product 6 under the effect of a basic catalyst to obtain the compound represented by general formula (I). The solar cell with the material serving as the electron transport layer is high in open-circuit voltage and good in device performance.

The invention relates to application of silicon dioxide-supported perchloric acid-xanthate in removing chromium from industrial wastewater. The silicon dioxide-supported perchloric acid-xanthate disclosed by the invention is characterized in that a preparation method for the silicon dioxide-supported perchloric acid-xanthate comprises the following steps: adding 300 to 400 meshes of silica gel, perchloric acid and xanthate into diethyl ether; stirring for 0.5 to 1h under room temperature; removing the diethyl ether by evaporation with a rotary evaporator; heating a remaining mixture to 100 to 105 DEG C under vacuum; and heating for 24 to 36h under the condition of keeping vacuum to obtain yellow powder, i.e., the silicon dioxide-supported perchloric acid-xanthate, wherein usage amount of the diethyl ether, the silica gel, the perchloric acid and the xanthate is that 1g of silica gel, 3mmol of perchloric acid and 3mmol of xanthate are added into every 5mL of diethyl ether; the xanthate is preferably selected from sodium ethyl-xanthate, potassium ethyl xanthate, sodium n-butyl-xanthate and potassium amyl xanthate.

The invention relates to reductive cation polymethacrylate, a preparation method thereof, application of the polymethacrylate to establishment of gene nano-complexes and application of the polymethacrylate to gene therapy. The method comprises the following steps: 1, 3, 5-triisopropylphenyl is taken as a raw material and reacts with N- bromosuccinimide and potassium ethyl xanthate to obtain substituted 1, 3, 5- triisopropylphenyl potassium ethyl xanthate; and the substituted 1, 3, 5- triisopropylphenyl potassium ethyl xanthate is catalyzed by azo-bis-iso-butyrynitrile, and subjected to reversible addition-broken strand transfer polymerization, aminolysis and oxidation reaction with 2-(dimethylamino ethyl)metacrylic acid ester to obtain poly (1, 3, 5-three-terminal sulfhydryl (2-propyl phenyl -2-(dimethylamino)ethyl)) methacrylic acid ester) and disulfide bond crosslinking products of the poly (1, 3, 5-three-terminal sulfhydryl (2-propyl phenyl -2-(dimethylamino)ethyl)) methacrylic acid ester). The polymethacrylate can condense plasmid genes into nano complexes; the transfection efficiency of HEK293T cells and Hella cells is more than 30 percent; the toxicity is low; and the survival rate of the cells is more than 80 percent.

The invention discloses a manufacturing method of a high-open-circuit-voltage photovoltaic cell. The method comprises preparing a substrate, an anode, an active layer, an electronic transmission layer and a cathode successively, wherein the electronic transmission layer is a polymer with a structure of the general formula (I), and the polymerization degree n thereof is any integer between 1 and 300. The manufacturing method of the polymer comprises the following steps of: carrying out decarboxylative nitration on a compound 1 under the action of concentrated nitric acid and acetic acid to obtain a compound 2, and reducing the compound 2 to a compound 3 by using zinc powder / acetic acid or palladium carbon / hydrazine hydrate, then preparing a diazonium salt solution by using sodium nitrite and hydrochloric acid, and reacting with potassium ethyl xanthate to generate a compound 4; preparing a diazotate solution from aromatic amine 5 with sodium nitrite and hydrochloric acid, and reacting with sodium iodide to synthesize an aromatic iodide 6; (3) dissolving the compound 4 in tetrahydrofuran, and reducing the compound 4 to thiophenol 7 with lithium aluminum hydride; and (4) dissolving the aromatic iodide compound 6 and the thiophenol 7 in solvents of ethanediol and isopropanol or toluol and the like, and synthesizing a material with a structure of the general formula I under the action of potassium carbonate and cuprous iodide. The photovoltaic cell manufactured by using the material as the electronic transmission layer has a relatively high open circuit voltage and good device performance.

The invention discloses a preparation method of a ZnO-CuO composite nano material. The preparation method comprises the following steps: stirring and dripping a potassium ethyl xanthate liquid into a zinc salt liquid; mixing obtained sediment with de-ionized water; drying to obtain zinc ethyl xanthate powder; stirring and dripping the potassium ethyl xanthate liquid into a copper salt liquid and drying to obtain copper ethyl xanthate powder; mixing copper ethyl xanthate and zinc ethyl xanthate to obtain powder A, and pre-mixing the powder A with the de-ionized water; adding an organic dispersant and an inorganic dispersant into a mixed liquid; drying and roasting, wherein the roasting temperature is 400 DEG C-500 DEG C, the temperature rising speed is 3 DEG C / min-10 DEG C / min and the roasting time is 2h-5h; and then cooling to room temperature to obtain the ZnO-CuO composite nano material. The method disclosed by the invention adopts a simple preparation process, is low in preparation cost, stable in performance and good in gas selectivity and has wide application prospect.

This invention relates to super high density information storage material potassium stibium sulfide, and its synthetic method. This invention method overcomes the prior art shortcomings such as overcritical demands for synthesis of KSb5S8 and sensitiveness to the air. The production procedures are: polyethyl pyrrolidone is dissolved in ethandiol used as reaction medium; added, respectively, are stibium trichloride and potassium ethyl xanthate, agitating to obtain even solution, making them reacting thoroughly, and then proceeding the steps of cooling, washing and drying to obtain the inventive products with good crystallization, better shape and uniform aggregation state. Advantages are: simple process, high pureness of product, the shape of reactants can be controlled.