Abstract: A method of manufacturing a carbon nanotube composite includes: a laminate forming step of forming, on a conductive base material made of a first metal having conductivity, a buffer layer made of a second metal capable of mutual diffusion with the first metal, and forming, on the buffer layer, a catalyst layer made of seed catalyst particles which catalyze formation of carbon nanotubes; a buffer layer diffusion step of performing heat treatment on the laminate; and a carbon nanotube layer forming step of forming the carbon nanotubes on the catalyst layer of the laminate by a chemical vapor deposition method, wherein the heat treatment is performed so as to form a solid phase diffusion region where the first metal and the second metal are solid-phase diffused from a surface of the conductive base material to a predetermined depth selected from depths of 850 nm or more.

Abstract: A method of manufacturing a carbon nanotube composite includes: a laminate forming step of forming, on a conductive base material made of a first metal having conductivity, a buffer layer made of a second metal capable of mutual diffusion with the first metal, and forming, on the buffer layer, a catalyst layer made of seed catalyst particles which catalyze formation of carbon nanotubes; a buffer layer diffusion step of performing heat treatment on the laminate; and a carbon nanotube layer forming step of forming the carbon nanotubes on the catalyst layer of the laminate by a chemical vapor deposition method, wherein the heat treatment is performed so as to form a solid phase diffusion region where the first metal and the second metal are solid-phase diffused from a surface of the conductive base material to a predetermined depth selected from depths of 850 nm or more.

Abstract: A method of manufacturing a ferrous oxide nanoparticle includes a water removing step raising temperature of a solution containing an iron oxide, an organic acid dissolving the iron oxide, and a first solvent to a first temperature and removing water in the solution, a second temperature maintaining step raising the first temperature to a second temperature and maintaining the second temperature, and a particle extracting step extracting the ferrous oxide nanoparticle from the solution after the second temperature maintaining step.

Abstract: A method of manufacturing a ferrous oxide nanoparticle includes a water removing step raising temperature of a solution containing an iron oxide, an organic acid dissolving the iron oxide, and a first solvent to a first temperature and removing water in the solution, a second temperature maintaining step raising the first temperature to a second temperature and maintaining the second temperature, and a particle extracting step extracting the ferrous oxide nanoparticle from the solution after the second temperature maintaining step.