摘要:
Provided is a catalyst for selective oxidation of CO gas in a gas of essentially hydrogen, and a method for producing the catalyst. The catalyst is highly active in a relatively high temperature range. The catalyst is for selectively oxidizing CO gas with hydrogen, and this carries ruthenium held on a carrier of titania and alumina, or carries ruthenium with an alkali metal and/or an alkaline earth metal held thereon. For producing the catalyst, a solution containing ruthenium and an alkali metal and/or an alkaline earth metal is applied to the carrier.
摘要:
A blue-based organic electro-luminescence element includes a first reflection member (21), a second reflection member (23) and a light emitting layer (22) arranged between the first and the second reflection member (21, 23). The light emitting layer (22) has a first organic light emitting medium emitting light having blue first light emission peak wavelength and a second organic light emission medium emitting light having a second light emission peak wavelength. The lights emitted from the first and the second organic light emission media interfere each other between the first and the second reflection members (21, 23), so that the light emitted by the first organic light emission medium is emphasized and the light extracted outside has a first and a second light emission peak wavelength satisfying the following relationship: I1 > I2 x 5, I1
摘要:
Disclosed is a fluorene derivative having a specific structure. Also disclosed is an organic electroluminescent device having high luminous efficiency wherein an organic thin film layer composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. At least one layer of the organic thin film layer contains the fluorene derivative of the specific structure alone or as a component of a mixture. Such an organic electroluminescent device with high luminous efficiency can be realized by this fluorene derivative.
摘要:
Novel hetero-polycyclic compounds having specific structures; color-changing material compositions each comprising (A) a fluorescent coloring matter consisting of at least one of the above compounds and (B) a binder; color-changing films made from the compositions; coloring matters consisting of the compounds; and pigments or dyes containing the compounds. The invention provides color-changing material compositions which are not deteriorated in color-changing performance even after long-time service and are freed from the precipitation of coloring matters in storage which results in failure; color-changing films made by using them; and novel hetero-polycyclic compounds, coloring matters, pigments or dyes, which can bring about the films.
摘要:
A color-changing material composition comprising (A) a binder resin consisting of a copolymer of a specific methacrylic ester and methacrylic acid, (B) at least one fluorescent colorant, and (C) a monomer and/or oligomer having a photopolymerizable ethylenically unsaturated group; and color-changing membranes formed by curing the composition. The use of the composition or the membranes brings about decrease in the degradation of the membrane by continuous lighting of a light source or in the viscosity increase of the composition and inhibits the deterioration of rhodamine.
摘要:
A method for insolubilizing and stabilizing a heavy metal contained in a waste, which comprises melt-kneading the waste (A) containing a heavy metal together with an alkali metal compound or alkaline earth metal compound (B) and either sulfur (C) or a sulfide (D) optionally further with a metal salt (E) which has a higher standard electrode potential than those of cations of ingredient (B) or (E) in the presence of a nonaqueous medium, and then cooling the melt to solidify it. Thus, the heavy metal contained in the waste can be efficiently immobilized and prevented from dissolving out.