2results about How to "Avoid particle agglomeration" patented technology

This invention discloses a method for preparing graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles. The method includes: dissolving iridium, ruthenium, cobalt, copper, and nickel metal salts in an equiatomic ratio to prepare a metal precursor solution; simultaneously preparing a graphene oxide dispersion; and then mixing and atomizing the dispersion using a dual-feed atomization drying device to obtain a composite precursor powder. Finally, the powder is subjected to microwave reduction under inert gas protection to obtain graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles. This invention employs a synergistic process of dual-feed atomization and microwave reduction, avoiding metal ion aggregation and elemental segregation, achieving uniform and stable loading of high-entropy nanoparticles on the graphene surface. The high-entropy nanoparticles have a single-phase face-centered cubic structure with a particle size of 8 nm to 25 nm. The process is simple, efficient, low-consumption, and allows for controllable proportions. The prepared graphene-loaded iridium-ruthenium-cobalt-copper-nickel high-entropy nanoparticles can be widely used in water electrolysis, exhibiting advantages such as low overpotential and high stability, making them suitable for large-scale production and industrial applications.

The utility model relates to a modification treatment device, and provides the plastic particle surface modification treatment device which comprises an equipment frame body I, a blanking frame, an equipment frame body II, a transmission line I and the like, a blanking frame is vertically arranged on the left portion of the first equipment frame body in a penetrating mode, a blanking channel is arranged in the blanking frame, a discharging opening is formed in the lower portion in the blanking frame, a second equipment frame body is installed on the left side of the first equipment frame body, and a first conveying line is arranged in the second equipment frame body. In the device, the transmission stage is separated from the conveying part to be in a suspended state, and the modifier atomizing part is arranged to fill atomized fine liquid drops into a material suspended area, so that materials are in full contact with a modifier in the suspended state without contact interference, and the modification effect is improved. The problem of non-uniform modification caused by material accumulation and container wall surface friction of traditional equipment is thoroughly solved, and the uniformity and the stability of the plastic particle modification effect are improved.