36 results about "Molybdenum hexacarbonyl" patented technology

The invention relates to a method for one-step preparing of a MoS2 film with an ultra-lubricating function through atomic layer deposition and a product and application of the MoS2 film. A Si substrate is cleaned in the following manner that after the Si substrate is wiped by ethyl alcohol and acetone, the Si substrate is subjected to ultrasonic oscillating for 5-10 min sequentially in acetone anddeionized water, then, the Si substrate is repeatedly washed through deionized water and is blown dry through a nitrogen gun, the Si substrate is placed in an atomic layer deposition system reactionchamber, a Mo(CO)6(molybdenum hexacarbonyl) solid source and SH(CH2)2SH(dithioglycol) liquid source are adopted, and atomic layer deposition is adopted for one-step preparing of the MoS2 film with theexcellent lubrication effect. The additional high-temperature vulcanization process is not needed in the related preparing method, the integral preparing process is effectively simplified, the MoS2 film with the extremely low friction coefficient is obtained under the condition that the plasma technology and other auxiliary technologies are not used, large-scale batched production is easy to achieve, and important application potentials are achieved.

An ultrafine copper-platinum alloy nanowire and a preparation method thereof, the invention relates to a platinum-based alloy and a preparation method thereof. It is to solve the technical problem of the limited shape of the existing platinum-based alloy nanoparticles. The diameter of the ultrafine copper-platinum alloy nanowire of the invention is 3nm-5nm, and the length is 1.5μm-3μm. Its preparation method: 1. prepare platinum oleylamine solution containing platinum acetylacetonate, molybdenum hexacarbonyl and CTAC; then prepare copper oleylamine solution containing copper acetylacetonate; Then add copper oleylamine solution, heat up to 210-230° C. for reaction, and cool to room temperature; 3. Wash and centrifuge to obtain ultrafine copper-platinum alloy nanowires. The aspect ratio of the nano wire of the invention reaches 300-1000, and can be used as a catalyst in the fields of fuel cell, sensor, petrochemical industry, automobile industry and the like.

The invention relates to a method for directly synthesizing a metal (tungsten or molybdenum) carbonyl complex from tungsten oxide or molybdenum oxide, belonging to the technical field of powder metallurgy. The method comprises the following steps: putting tungsten or molybdenum oxide, carbon tetrachloride, a nonpolar organic solvent and an independently packaged reducer into a sealed reaction kettle provided with a stirrer; replacing air in the reaction system by repeatedly charging carbon monoxide into the reaction kettle and discharging the carbon monoxide from the reaction kettle, heating the reaction kettle to 200-250 DEG C, and keeping the temperature for 4-8 hours; after the reaction system is cooled to 30-50 DEG C, introducing carbon monoxide to 5-20 MPa, keeping the pressure, starting the stirrer of the reaction kettle, breaking the container packaging the reducer, wherein the stirring is carried out at the rotation speed of 100-200 rpm for 1-12 hours; and after the reaction finishes and the solution is cooled to room temperature, taking out the reaction solution, distilling and heating for sublimation to obtain the clear crystal of tungsten hexacarbonyl or molybdenum hexacarbonyl. The invention has the advantages of simple technique, high safety in production, low cost and high synthesis efficiency, and has wide application prospects in the market.

The invention discloses a preparation method of molybdenum disulfide nanotubes. The preparation method comprises the following technological steps: 1) paving molybdenum hexacarbonyl on the bottom of aceramic crucible; then putting a porous anodic aluminum oxide template above the molybdenum hexacarbonyl in a manner of placing an opening of the porous anodic aluminum oxide template downward; aftersealing the crucible, putting the crucible into a tubular furnace; under gas protection, sublimating and depositing at low temperature and pyrolyzing at high temperature; then cooling; 2) after cooling the vacuum tubular furnace to room temperature, putting the template into the ceramic crucible filled with sulfur powder in the manner of placing the opening of the template downward; after sealingthe crucible, raising the temperature under the gas protection, so as to enable monomer sulfur and metal molybdenum to directly react; 3) removing the porous aluminum oxide template by adopting a diluted acid solution and removing surplus sulfur by utilizing carbon disulfide; then carrying out suction filtration treatment and drying to obtain a finished product. The method disclosed by the invention has simple steps and no environment pollution and does not need complicated equipment; a prepared molybdenum disulfide nanotube powder material has strong size controllability and good crystallization performance; the nanotubes have a shape and uniform tube wall, so that the comprehensive performance of a molybdenum disulfide nanotube powder material finished product is greatly improved. The molybdenum disulfide nanotubes disclosed by the invention have wide applicability and large-scale industrial production is facilitated.