Abstract: A needle crystal in the form of a capsule comprising fullerene molecules such as C60 and a C60 platinum derivative and having a hollow portion (a fullerene shell capsule) is provided. The fullerene shell capsule which has been prepared by the liquid-liquid interface precipitation method, which comprises (1) a step in which a solution containing a first solvent dissolving fullerene therein is combined with a second solvent in which the solubility of fullerene is lower than in the above first solvent; (2) a step in which a liquid-liquid interface is formed between the above solution and the above second solvent; and (3) a step in which a carbon fine wire is precipitated on the above liquid-liquid interface, has a novel characteristic in its form and can be used as a catalyst supporting material, a raw material for a plastic composite material, a storage material for gas such as hydrogen, a catalyst for fuel cell, or the like.

Abstract: Disclosed is a thin line having a hollow structure portion composed of a C70 fullerene molecule, which is a novel functional material useful for a capsule for containing various chemical substances, a reaction site, a gas adsorbent, a catalyst supporting material, an electrode material, a semiconductor and the like. Also disclosed is a method for producing the same.

Abstract: The invention presents a fullerene derivative fine wire composed of basic component unit of fullerene derivative, being made of acicular crystal of fullerene derivative, as a fine wire showing high crystallinity and semiconductor performance.

Abstract: Disclosed is a thin line having a hollow structure portion composed of a C70 fullerene molecule, which is a novel functional material useful for a capsule for containing various chemical substances, a reaction site, a gas adsorbent, a catalyst supporting material, an electrode material, a semiconductor and the like. Also disclosed is a method for producing the same.

Abstract: A needle crystal in the form of a capsule comprising fullerene molecules such as C60 and a C60 platinum derivative and having a hollow portion (a fullerene shell capsule) is provided. The fullerene shell capsule which has been prepared by the liquid-liquid interface precipitation method, which comprises (1) a step in which a solution containing a first solvent dissolving fullerene therein is combined with a second solvent in which the solubility of fullerene is lower than in the above first solvent; (2) a step in which a liquid-liquid interface is formed between the above solution and the above second solvent; and (3) a step in which a carbon fine wire is precipitated on the above liquid-liquid interface, has a novel characteristic in its form and can be used as a catalyst supporting material, a raw material for a plastic composite material, a storage material for gas such as hydrogen, a catalyst for fuel cell, or the like.

Abstract: The invention presents a fullerene derivative fine wire composed of basic component unit of fullerene derivative, being made of acicular crystal of fullerene derivative, as a fine wire showing high crystallinity and semiconductor performance.

Abstract: Fullerene whiskers or fibers obtained by a liquid-liquid interfacial precipitation method are heat-treated in vacuum or in a gas atmosphere at a temperature of from 500 to 1,000° C. to form a fullerene shell tube which can be used in wide applications such as field emission devices, gas filters, hydrogen storage materials and catalyst supports in energy, catalyst and semiconductor industries.

Abstract: A novel fine carbon wire includes a needle-like fullerene crystal having a smooth surface. The fine carbon wire can be produced by a method including the steps of (1) adding a solution containing the fullerene dissolved in a first solvent to a second solvent having less solvency for the fullerene than the first solvent; (2) forming a liquid-liquid interface between the solution and the second solvent; and (3) depositing a fine carbon wire at the liquid-liquid interface.

Abstract: A novel fine carbon wire includes a needle-like fullerene crystal having a smooth surface. The fine carbon wire can be produced by a method including the steps of (1) adding a solution containing the fullerene dissolved in a first solvent to a second solvent having less solvency for the fullerene than the first solvent; (2) forming a liquid-liquid interface between the solution and the second solvent; and (3) depositing a fine carbon wire at the liquid-liquid interface.

Abstract: The invention is a novel fullerene-added lead zirconate titanate and a method of producing the same, wherein zirconium alkoxide, titanium alkoxide and lead acetate are dissolved in an organic solvent with a stabilizer to form a colloidal solution or sol. The colloidal solution is added with fullerene, gelatinized, dried and fired at a relatively low temperature, for example, 400 to 500° C., whereby a perovskite phase can effectively be formed at a temperature lower than in conventional methods.

Abstract: A fullerene-dispersed ceramic is produced by an improved method in which C60 or like fullerene, and C16TMA or like surfactant, are dissolved in a solution of metallic compound, such as zirconyl nitrate, to form a colloidal solution. A gel is formed from the colloidal solution by changing its hydrogen ion concentration. The gel is dried and subjected to heat treatment, to eliminate remaining solvent and surfactant, and thereby stably obtain the desired fullerene-dispersed ceramic powder in which the fullerene is uniformly dispersed and which is essentially free from carbon other than fullerene.