摘要:
PROBLEM TO BE SOLVED: To provide an additive for engine oil excellent in effect of improving the lubrication performance of the engine oil, and the engine oil added with such the additive for the engine oil, and also a method for adding the additive for improving the lubrication performance of the engine oil. SOLUTION: The additive for the engine oil is constituted by blending a plurality of many sided plate-formed silver crystalline particles having a 300 to 500 nm mean length. Also, the engine oil is constituted by blending base oil with the additive for the engine oil. Further, the method for adding the additive to the engine oil includes adding the plurality of many sided plate-formed silver crystalline particles having the 300 to 500 nm length to the engine oil, as the additive. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for producing metal nanoparticles including rod-shaped nanoparticles, which can control the shape of the metal nanoparticles to the rod shape by mixing a primary amine or a secondary amine at an appropriate ratio without using an additional apparatus, and further can control the size of the metal nanoparticles to several nanometers. SOLUTION: The method for producing the metal nanoparticles including the rod-shaped nanoparticles comprises the steps of: heating a mixture of an amine compound containing the secondary amine, a metallic precursor and a non-polar solvent to a temperature of 60 to 300°C to form such an intermediate of nanoparticles of a metal oxide as to include at least rod-shaped nanoparticles; adding a capping molecule and a reducing agent to the mixture and heating the resultant mixture to a temperature of 90 to 150°C to form the metal nanoparticles; and recovering the metal nanoparticles. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for producing a nanoparticle. SOLUTION: The method for producing the nanoparticle includes attaching an atom or a molecule composing a precursor of the nanoparticle onto an ionic liquid 22. The production method can produce the nanoparticles which hardly agglomerate in a liquid even though the surface of the particle is not chemically modified; can produce the nanoparticle without needing a complicated operation because of producing the nanoparticle directly from the precursor of the nanoparticle; and does not produce a byproduct. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide titania which is excellent in industrial productivity and has the shape of a nanotube that is uniform and has a sufficient aspect ratio. SOLUTION: The titania having the shape of the nanotube with an aspect ratio of ≥6 can be produced by subjecting titanium metal or an alloy containing titanium as a main component to anodic oxidation in an electrolyte solution containing halogen atom-containing ions, such as the aqueous solution of perchloric acid. COPYRIGHT: (C)2005,JPO&NCIPI