3 results about "Potassium hexachloroplatinate" patented technology

This application relates to the field of cobalt hydroxide preparation technology, specifically to an intelligent preparation process for cobalt hydroxide nanocomposite materials. The process includes: weighing cobalt nitrate and polyvinylpyrrolidone into a mixing container, adding deionized water, and performing ultrasonic mixing; collecting the temperature at each set position and adjustment interval within the mixing container at each time point; determining a first adjustment coefficient for each position within each adjustment interval; determining the significant value of the temperature change response at each position, and combining this with the first adjustment coefficient to obtain a second adjustment coefficient for each position within each adjustment interval; using a PLC control system to regulate the temperature during the ultrasonic mixing process; passing argon gas through the ultrasonically mixed solution, adding sodium borohydride solution, and then adding an equal volume of potassium tetrachloropalladate and potassium tetrachloroplatinate solutions, followed by centrifugation, washing, and drying to obtain the cobalt hydroxide nanocomposite material. This application improves the accuracy of detecting residues on the wafer cleaning surface.

The present application relates to the technical field of antitumor drug synthesis, and particularly relates to a metal antitumor drug TTP of platinum complex, and a synthesis method and application thereof, wherein 2-bromopyridine and 5-methyl 2-aldehyde pyridine are used as raw materials, halogen-lithium exchange is carried out by reacting with butyllithium and reacting with bromopyridine, a hydroxyl dipyrrole compound is obtained by anionic attack on pyridine formaldehyde, a carbon-based dipyrrole compound is further prepared by oxidation, bromination is carried out by NBS, condensation is carried out by triphenylphosphine, and complexation is carried out by potassium tetrachloroplatinate, and finally the final product TTP which targets mitochondria is obtained. The present application can inhibit two energy metabolism pathways of mitochondrial oxidative phosphorylation and glycolysis, reduce the overall metabolic level of tumor cells, and finally achieve the purposes of inhibiting tumor cell proliferation and overcoming cell drug resistance. The raw material is cheap and easy to obtain, the structure is novel, the yield is high, the separation and purification operation is simple, mass production is suitable, the product shows good biological activity, and detection shows that the metal antitumor drug TTP has an IC 50 . of 5.17 uM for non-small cell lung cancer A549.

The application provides a hydrogen evolution catalyst based on amorphous high-entropy hydroxide loaded platinum cluster synthesized by water thermal method and a preparation method thereof, and belongs to the technical field of electrocatalytic hydrogen production. The catalyst takes foamed nickel-molybdenum as a substrate, is immersed in a nitrate solution containing cobalt, iron and cerium, and is subjected to a hydrothermal reaction while an external uniform magnetic field is applied to synthesize amorphous high-entropy hydroxide, then the high-entropy hydroxide is immersed in a potassium chloroplatinate solution, platinum clusters are loaded on the high-entropy hydroxide, and a Pt-O-M (M=Co, Fe, Ce, Ni, Mo) bridge bond is formed. The obtained electrocatalyst has high hydrogen evolution activity, long-term stability under long-term alkaline high current density, and low platinum loading of the catalyst, so it has low cost and great application potential.