5901 results about "Reaction speed" patented technology

The invention relates to a method for preparing endogenetic particle reinforced metal matrix composites under the coupling effect of a magnetic field and supersonic waves. The method comprises: adjusting the temperature of a metal matrix fused mass to the reaction initial temperature after refining, adding a reactant which can generate a particle phase with the fused mass through the reaction in situ for implementing the synthesis reaction, standing the mixture after the reaction is over, and cooling the mixture to the pouring temperature for pouring; and the method is characterized in that: the magnetic field and the high-intensity ultrasonic field are simultaneously exerted in the reaction synthesis process to realize the synthesis of endogenetic particle reinforced metal matrix composites under the coupling effect of the magnetic field and the high-intensity ultrasonic field. The magnetic field can be an intense pulse magnetic field, a high frequency oscillation magnetic field or a low frequency alternating magnetic field. In the method, the coupling effect of the magnetic field and the ultrasonic field makes the particle sizes be thinned and dispersed evenly; the ultrasonic vibration agitation and electromagnetic stirring functions improve the composite dynamic condition, and the compounding of the particle phase and a base metal interface is better; and the co-action of magnetochemistry and sonochemistry improves the thermodynamic condition of the reaction in situ, as well as speeding up the reaction in situ and controlling the growth of the particle phase.

The present invention provides A method for preparing an electrode containing lithium nickel oxide wherein nickel has a single oxidation number, which comprises the following steps: a) preparing an electrode containing the lithium nickel oxide (LixNi1−yO, 0.4<x<1, 0<y<1) layer formed on the conductive substrate; and b) applying oxidative voltage to the electrode, and then applying reductive voltage thereto, an electrode prepared by the method and an electrochromic device containing the same.The electrode containing the lithium nickel oxide layer of the present invention exhibits wider optical electrochromic range and fast reaction speed, so that it can contribute to improving electrochromism and other optical properties of an electrochromic device.

The invention provides a Fenton and Fenton-like system fortifier and a using method thereof, which relate to a water treating fortifier and a using method thereof and overcomes the defects that the pH value of the Fenton and Fenton-like system reaction water body is limited, the adding amount of Fe<2+> is overhigh in the Fenton reaction, and the reaction speed is low in Fenton-like reaction. The fortifier is selected from ascorbic acid, sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine, hydroxyl-ammonium perchlorate, hydroxylamine sulfate, hydrazine, N,N-diethylhydroxylamine, carbohydrazide, ethanolamine, a hydroxylamine solution or N,N,N',N'-tetra substituted phenylenediamines. The using method has the following steps of: adding the Fenton and Fenton-like system fortifier, fortificated chemicals and peroxide into the treated water body; and then, uniformly stirring to react. The fortifier can accelerate the reaction of water treatment and decrease the using amount of the fortificated chemicals.

The invention relates to the application field of the high-level oxidation technique and the water treating technique, and provides a method using the high-level oxidation technique that produces vitriol free radical for treating organic contamination in water. persulfate or single peroxide hydrosulfate is used for producing vitriol free radical through pyrogenation, ultraviolet light photolysis, Gama radial eradiation decomposition or metal ion catalyze manner, having high oxidation active vitriol free radical that can react with the organic contamination in the water so as to degradate and mineralize the organic contamination and kill the living creatures in the water and reach the aim of purifying the water quality. The invention has the advantages that the method can be operated under the condition of neutral or alkalescent pH compared with the Fenton reagent; the method is friendly environment without producing secondary pollution; the method has high treating efficiency and rapid reaction speed so as to be suitable for treating water with big fluid; the method can be used for drinking water disinfection and industrial and life sewage treatment, thereby not only degradating the organic contamination in the water, but also killing the harmful living creatures in the water at the same time.