Yearly Archives - 2021

02 7月

Application of lanthanum aluminate

Lanthanum aluminate belongs to ABO3 perovskite structure compounds, with a small dielectric constant, low dielectric loss, good lattice mismatch, thermal expansion coefficient, good chemical stability, wide energy gap, specific surface area is big, has a certain activity, good thermal stability, has been widely applied in the catalytic materials, substrate material, high temperature superconducting thin film substrate, synthesis of microwave dielectric ceramic materials, high temperature fuel cells, Microwave dielectric resonator, etc. At present, there are many methods used to prepare [...]

Technical Support 详情...
18 6月

The role of lanthanum titanate

Photocatalytic purification technology has a unique application effect in the treatment of air and water pollution and has been used in many environmental pollution treatment processes. In the past research process, the main work is centered on the preparation and application of new high activity photocatalytic materials. After half a century of development and improvement, the current research focus is on the further industrial application of the technology. In this process, the choice of materials and the adaptability to [...]

Technical Support 详情...
02 6月

High temperature and pressure preparation of chromium nitride

Nitrogen compounds have a wide range of applications in modern society due to their unusual and even unique properties. For example, C-BN, Si3N4 has high hardness as a cutting material, GaN is the most widely used semiconductor materials, corrosion resistant transitional metal nitride TiN, hydrogen storage material Li3N, with superconducting properties of MoN and so on… CrN is a kind of dilute magnetic semiconductor material with oxidation resistance, corrosion resistance, high hardness (HV1750), high temperature resistance (700℃) and good [...]

Technical Support 详情...
24 5月

The role of nano-sized magnesium oxide in lithium batteries

Lithium-ion battery can be charged twice in the process of use, which belongs to a kind of secondary rechargeable battery. The main working principle is the repeated movement of lithium ions between positive and negative electrodes. No matter what the shape of the battery is, the main components are electrolyte, positive electrode piece, negative electrode piece and diaphragm. At present, the international production of lithium-ion batteries is mainly concentrated in China, Japan and South Korea, and the main lithium [...]

Technical Support 详情...
06 5月

Preparation of zirconium carbide nanomaterials from waste plastics

Zirconium carbide, as an ultra-high temperature ceramic material, has excellent physical and chemical properties, such as high hardness, high melting point, high wear resistance, low vapor pressure, low resistivity, good chemical stability and thermal stability. At present, The method of preparation of zirconium carbide is mainly with zirconium dioxide reaction with carbon reduction synthesis (J.M ater. Sci., 2004,39,6057-6066.), sol-gel (j. ur. Ceram. Soc., 2007,27,2061-2067.) and chemical vapor deposition (Appl. Surf. Sci., 2015332591-598, Surf. Coat. Technol., 2008203,87-90.) method. Industrial preparation [...]

Other Articles 详情...
29 4月

Preparation technology of nano bismuth oxide

For the preparation of nano bismuth oxide, the main methods include plasma method, melt spray oxidation method, chemical vapor condensation method, sol-gel method, chemical precipitation method, etc. Each method has its own characteristics. The plasma method has the advantage of short process, but requires special equipment, one-time investment, high cost; Melt spray oxidation process is short, but there are some problems such as incomplete bismuth oxidation, short nozzle life, dangerous operating environment, etc. Chemical vapor condensation method has high [...]

Technical Support 详情...
22 4月

What are the characteristics and uses of nano-zirconium carbide?

Performance Characteristics 1. High purity, small particle size, uniform distribution, large specific surface area, high surface activity, low loose packing density. 2 with high temperature resistance, oxidation resistance, high strength, high hardness, good thermal conductivity, good toughness. 3. Zirconium carbide is an important high melting point, high strength and corrosion resistance of high temperature structural material, and has the characteristics of high absorption of visible light, reflection of ultraviolet light and energy storage. Main Use 1. New thermal insulation textile: nanometer ZRC has the [...]

Technical Support 详情...
16 4月

Plasma treatment to improve the quality of nano bismuth oxide

Bismuth oxide is an important functional powder material, widely used in inorganic synthesis, electronic ceramics, chemical reagents and other fields, mainly used in the manufacture of ceramic dielectric vessels, can also be used in the manufacture of piezoelectric ceramics, varistors and other electronic ceramic components. Due to the finer particle size of nanometer bismuth oxide, in addition to the properties and applications of bismuth oxide powder with general particle size, it can also be used in occasions with special particle [...]

Technical Support 详情...
01 4月

Nanometer magnesium hydroxide for nanoscale materials

Nano magnesium hydroxide can also be used to save fertilizer? Recently in zhengzhou held a “nanometer magnesium hydroxide fertilizer application technology” scientific and technological achievements appraisal meeting, nanometer magnesium hydroxide fertilizer synergist recognized by experts, experts agree that the technology has obvious economic benefits and social benefits. By zhao yufen academician, director of the national committee of xiamen university, south China agricultural university professor liao and henan academy of agricultural science and technology ke-gang sun researcher, deputy director of the [...]

Other Articles 详情...
22 3月

Analysis method of vanadium pentoxide

Wage sample 0.1g (weigh to 0.0001g) in 300ml triangular conical flask, add 1:1 sulfuric acid 5ml, add a little steaming water, heat and dissolve, take off, add 3:1: 1 sulfur phosphate 15 ml, drops of 10% ammonium ferrous sulfate solution to a green, cool to room temperature in cold water with 3% potassium permanganate oxidation to solution is slightly red don’t disappear, then add about 1 gram of solid urea with 1% sodium nitrite is original to solution is [...]

Technical Support 详情...