摘要:
A method for synthesizing high purity silver particles and colloids without requiring the addition of either surfactants or reducing agents thereto, or requiring only a minimal amount thereof. The synthesizing process comprises: (i) a silver oxalate synthesizing process; (ii) a process of dispersing silver oxalate into an appropriate carrier; and {iii) a process of heating said silver oxalate dispersed into said carrier at a temperature of at least 100° C. Silver particles and colloids of various form factor and size may be synthesized depending upon the reaction conditions, the carrier, and the type of surfactant.
摘要:
The present invention is directed to methods for forming nanosized metal particles. Preferably, nanosized noble metal particles are formed. According to the methods of the invention, a product containing nanosized metal particles in a solvent are formed. Additionally, processing to remove undesirable byproducts created or used during the fabrication process are not necessary.
摘要:
A process for synthesizing nano-sized rutile, anatase, or a mixture of rutile and anatase TiO2 powder. The process includes the steps of: 1) forming a Ti-peroxo complex by mixing H2O2 with a Ti compound, and 2) heating the Ti-peroxo complex at a temperature of above 50° C. A primary particle size of TiO2 particles, synthesized by the method, is below 50 nm, and an agglomerated particle size thereof after a washing/dry process is below about 10 μm. The major characteristics of the present invention are that it is a low temperature process, a highly concentrated synthesis, and high production yield of above 90%.
摘要翻译:合成纳米尺寸金红石,锐钛矿或金红石和锐钛矿TiO 2粉末的混合物的方法。 该方法包括以下步骤:1)通过将H 2 O 2与Ti化合物混合形成Ti-过氧配合物,和2)在高于50℃的温度下加热Ti-过氧配合物。合成的TiO 2颗粒的一次粒径 通过该方法,低于50nm,洗涤/干燥处理后的附聚粒径低于约10μm。 本发明的主要特征是低温工艺,高浓缩合成,高产率高于90%。
摘要:
A method for synthesizing TiO2, metal-doped TiO2, and metal-coated TiO2 particles of spherical form factor and needle type of which the average particle size is below 150 nm. The method of the invention is to synthesize Ti(OH)4, metal-doped Ti(OH)4 or metal-coated Ti(OH)4, and react the same by applying a pressure above the saturated vapor pressure at a temperature above 100° C. The pressure is achieved by means of the pressure of the vapor generated during the reaction inside of a closed reactor, by pressure applied from the outside, or a mixture of both. Gases to increase the pressure from outside are preferably inert gases such as Ar and N2 but are not limited to inert gases.
摘要:
A fine silver particle-containing composition includes a large number of fine silver particles 2 and a coating layer 4 that covers a surface of each silver particle 2. The silver particle 2 is a so-called nano particle. The silver particle 2 has a scale-like shape. The coating layer 4 consists of an organic compound. The organic compound binds to the silver particle 2. The organic compound suppresses aggregation of the silver particle 2. The composition is in a cake form. A weight ratio of the organic compound with regard to the total amount of the composition is not lower than 2% but not higher than 15%.
摘要:
A process for synthesizing nano-sized rutile, anatase, or a mixture of rutile and anatase TiO2 powder. The process includes the steps of: 1) forming a Ti-peroxo complex by mixing H2O2 with a Ti compound, and 2) heating the Ti-peroxo complex at a temperature of above 50° C. A primary particle size of TiO2 particles, synthesized by the method, is below 50 nm, and an agglomerated particle size thereof after a washing/dry process is below about 10 μm. The major characteristics of the present invention are that it is a low temperature process, a highly concentrated synthesis, and high production yield of above 90%.
摘要翻译:合成纳米尺寸金红石,锐钛矿或金红石和锐钛矿TiO 2粉末的混合物的方法。 该方法包括以下步骤:1)通过将H 2 O 2与Ti化合物混合形成Ti-过氧配合物,和2)在高于50℃的温度下加热Ti-过氧配合物。合成的TiO 2颗粒的一次粒径 通过该方法低于50nm,洗涤/干燥处理后的附聚粒径低于约10μm。 本发明的主要特征是低温工艺,高浓缩合成,高产率高于90%。
摘要:
A fine silver particle-containing composition includes a large number of fine silver particles 2 and a coating layer 4 that covers a surface of each silver particle 2. The silver particle 2 is a so-called nano particle. The silver particle 2 has a scale-like shape. The coating layer 4 consists of an organic compound. The organic compound binds to the silver particle 2. The organic compound suppresses aggregation of the silver particle 2. The composition is in a cake form. A weight ratio of the organic compound with regard to the total amount of the composition is not lower than 2% but not higher than 15%.
摘要:
The present invention is directed to methods for forming nanosized metal particles. Preferably, nanosized noble metal particles are formed. According to the methods of the invention, a product containing nanosized metal particles in a solvent are formed. Additionally, processing to remove undesirable byproducts created or used during the fabrication process are not necessary.