摘要:
A method and apparatus of producing inorganic semiconducting nanoparticles having a stable surface includes providing an inorganic bulk semiconductor material milled in the presence of a selected reducing agent. The reducing agent acts to chemically reduce oxides of the semiconductor material, or prevent the formation of such oxides to provide semiconducting nanoparticles having a stable surface, allowing electrical contact between the nanoparticles. The milling media and/or one or more components of the mill include the selected reducing agent. The milling media or mill are typically composed of a metal selected from the group comprising iron, chromium, cobalt, nickel, tin, titanium, tungsten, vanadium, and aluminum, or an alloy containing one or more of these metals. Alternatively, the selected reducing agent includes a liquid contained in the mill during milling, which is typically an acidic solution containing any of hydrochloric, sulphuric, nitric, acetic, formic, or carbonic acid, or a mixture thereof.
摘要:
This antimony-doped tin oxide powder is an antimony-doped tin oxide powder characterized by: (A) including at least three kinds of ions selected from the group consisting of Sn 2+ , Sn 4+ , Sb 3+ and Sb 5+ ; (B) having a ratio of average Sn ionic radius to average Sb ionic radius of 1 : (0.96 to 1.04); and (C) having an Sb content of 5 to 25 moles relative to a total of 100 moles of Sb and Sn, wherein the average Sn ionic radius is the average of ionic radii of Sn 2+ and Sn 4+ , while the average Sb ionic radius is the average of ionic radii of Sb 3+ and Sb 5+ .
摘要:
To provide is a p-type oxide, including an oxide, wherein the oxide includes: Cu; and an element M, which is selected from p-block elements, and which can be in an equilibrium state, as being present as an ion, wherein the equilibrium state is a state in which there are both a state where all of electrons of p-orbital of an outermost shell are lost, and a state where all of electrons of an outermost shell are lost, and wherein the p-type oxide is amorphous.
摘要:
The method comprises treating the metallic nanoparticles with at least one stabilizing compound having at least one functional group selected from phosphoric and phosphonic acids and salts thereof, phosphine, phosphine oxide and phosphonium, whereby the dispersion is stable for at least one week.
摘要:
Laser marking of plastic material is achieved by incorporating into the plastic a laser marking particulate additive having a particle size of less than 100 nm. A mixed oxide particle of tin and antimony having a particle size of 10-70 nm is useful as a laser marking additive when using a YAG laser. A metallic powder can further be added to improve marking contrast.
摘要:
Nanometer-sized particles comprise a mixed oxide of titanium and antimony and are characterized by rutile-like crystal phases. The particles are easily prepared by hydrothemal processing, and may be used as colloids, or in various compositions and articles.
摘要:
The present invention concerns the use of novel sodium alloy precursor compounds as an active negative electrode material in a sodium-ion battery, and a negative electrode comprising such a sodium alloy precursor compound, and a sodium-ion battery comprising such a negative electrode.
摘要:
An antimony-doped tin oxide which comprises tin oxide and antimony oxide and fulfills the following requirement (a) and/or (b): (a) the half-width value (”2¸) around 2¸= 27° as determined by an X-ray diffraction measurement is 0.35 or less; and/or (b) the content of antimony oxide is 0.5 to 10.0wt% relative to the weight of the antimony-doped tin oxide and the crystallinity, which is a value determined by dividing a peak value of a peak appearing around 2¸=27° as determined by an X-ray diffraction measurement by the half-width (”2¸), is 18092 or more.
摘要:
An infrared ray cut-off material is formed of phosphorus-doped antimony tin oxide powder, in which a content of antimony in terms of SbO 2 is not less than 14 parts by mass and not more than 30 parts by mass with respect to 100 parts by mass of the infrared ray cut-off material, a content of phosphorus in terms of PO 2.5 is not less than 1 part by mass and not more than 25 parts by mass with respect to 100 parts by mass of the infrared ray cut-off material, and a balance other than antinomy oxide and phosphorus oxide is tin oxide.