The invention relates to an electrochemical device which simultaneously carries out the production of an oxidising solution at controlled composition containing hypochlorous acid and the sprinkling thereof in a continuous process, useful for biocide treatments in agricultural fields. The device can be installed on motor vehicles or mobile means in general.

This invention relates generally to novel methods and novel devices for the continuous manufacture of nanoparticles, microparticles and nanoparticle/liquid solution(s). The nanoparticles (and/or micron-sized particles) comprise a variety of possible compositions, sizes and shapes. The particles (e.g., nanoparticles) are caused to be present (e.g., created) in a liquid (e.g., water) by, for example, preferably utilizing at least one adjustable plasma (e.g., created by at least one AC and/or DC power source), which plasma communicates with at least a portion of a surface of the liquid. At least one subsequent and/or substantially simultaneous adjustable electrochemical processing technique is also preferred. Multiple adjustable plasmas and/or adjustable electrochemical processing techniques are preferred. The continuous process causes at least one liquid to flow into, through and out of at least one trough member, such liquid being processed, conditioned and/or effected in said trough member(s). Results include constituents formed in the liquid including micron-sized particles and/or nanoparticles (e.g., metallic-based nanoparticles) of novel size, shape, composition and properties present in a liquid.

This invention relates generally to novel methods and novel devices for the continuous manufacture of nanoparticles, microparticles and nanoparticle/liquid solution(s). The nanoparticles (and/or micron-sized particles) comprise a variety of possible compositions, sizes and shapes. The particles (e.g., nanoparticles) are caused to be present (e.g., created) in a liquid (e.g., water) by, for example, preferably utilizing at least one adjustable plasma (e.g., created by at least one AC and/or DC power source), which plasma communicates with at least a portion of a surface of the liquid. At least one subsequent and/or substantially simultaneous adjustable electrochemical processing technique is also preferred. Multiple adjustable plasmas and/or adjustable electrochemical processing techniques are preferred. The continuous process causes at least one liquid to flow into, through and out of at least one trough member, such liquid being processed, conditioned and/or effected in said trough member(s). Results include constituents formed in the liquid including micron-sized particles and/or nanoparticles (e.g., metallic-based nanoparticles) of novel size, shape, composition and properties present in a liquid.

A method for making a porous metal article of manufacture is provided. The method includes subjecting a saturated aqueous electrolytic solution wherein silver or copper is a donor in a container with two electrodes, where dendrite crystals of silver or copper or silver or copper nanowires are formed and collected. The collected dendrite crystals or nanowires are pressed and sintered, thereafter cooled to room temperature at room temperature and finally pressing the cooled geometric shape to form the porous silver metal article of manufacture. The collected dendrites crystals or nanowires also can be pressed in a carbon based mold or, alternatively, a non-carbon based mold and in vacuum, sintered, cooled to room temperature.

A method for making a porous metal article of manufacture is provided. The method includes subjecting a saturated aqueous electrolytic solution wherein silver or copper is a donor in a container with two electrodes, where dendrite crystals of silver or copper or silver or copper nanowires are formed and collected. The collected dendrite crystals or nanowires are pressed and sintered, thereafter cooled to room temperature at room temperature and finally pressing the cooled geometric shape to form the porous silver metal article of manufacture. The collected dendrites crystals or nanowires also can be pressed in a carbon based mold or, alternatively, a non-carbon based mold and in vacuum, sintered, cooled to room temperature.

A novel silver-coated copper powder, particularly a silver-coated copper powder particle having a dendritic shape, having increased electrical conductivity with no need to increase the silver content is provided. The silver-coated copper powder is composed of a silver-coated copper particle coated with a silver layer containing silver or a silver alloy, including a silver-coated copper particle having a dendritic shape, containing nitrogen (N) in the silver layer, and having a nitrogen (N) content of 0.2 to 10.0 parts by mass with respect to 100 parts by mass of the silver content.

There is provided a rotary seal capable of delaying a progress of corrosion of a steel-made member without increasing manufacturing cost even when a solution containing an electrolyte is present around a contact portion between a stainless steel-made member and the steel-made member. At least one of (i) a metal fitting portion A between a sleeve 2A of a stainless steel-made slinger 2 of a rotary seal 1A and an inner ring 12 that is a steel-made radially inner member, and (ii) an outside-air side surface of the slinger 2, which includes an outside-air side end portion of the fitting portion A, is provided with at least one of a silane-based adhesive layer containing powder of metal having a higher ionization tendency than iron, a thermosetting resin adhesive layer containing powder of metal having a higher ionization tendency than iron, and a coating film containing powder of metal having a higher ionization tendency than iron.

Disclosed is a new dendritic silver powder which, when mixed with a synthetic resin, gives electroconductive films having sufficient electroconductivity. Even when the films produced from a mixture of the dendritic silver powder and a synthetic resin vary in thickness, the electroconductivity of the films can be maintained. The volume-cumulative particle diameter D50 (referred to as D50D) determined by adding the silver powder to water containing a dispersant, applying 300-watt ultrasonic waves to the resultant mixture for 3 minutes, and examining the dispersion with a laser diffraction/scattering type particle size analyzer is 1.0-15.0 m and that the ratio of the volume-cumulative particle diameter D50 (referred to as D50) determined by adding the silver powder to the water containing a dispersant and examining the mixture under the same conditions as for the D50D except that no ultrasonic waves are applied, to the D50D, D50N/D50D, is 1.0-10.0.

Disclosed is a new dendritic silver powder which, when mixed with a synthetic resin, gives electroconductive films having sufficient electroconductivity. Even when the films produced from a mixture of the dendritic silver powder and a synthetic resin vary in thickness, the electroconductivity of the films can be maintained. The volume-cumulative particle diameter D50 (referred to as D50D) determined by adding the silver powder to water containing a dispersant, applying 300-watt ultrasonic waves to the resultant mixture for 3 minutes, and examining the dispersion with a laser diffraction/scattering type particle size analyzer is 1.0-15.0 m and that the ratio of the volume-cumulative particle diameter D50 (referred to as D50) determined by adding the silver powder to the water containing a dispersant and examining the mixture under the same conditions as for the D50D except that no ultrasonic waves are applied, to the D50D, D50N/D50D, is 1.0-10.0.

The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention.