Publications by authors named "Ayumi Furuse"
Article Synopsis
- Graphene oxide (GO) is a promising material for water separation technologies due to its unique structure and properties, which allow it to interact effectively with water.
- Research using molecular dynamics simulations, X-ray diffraction, and nuclear magnetic resonance has revealed important details about how water is adsorbed in GO, particularly its flexible interlayer spacing influenced by oxygen groups.
- The study highlights that GO's staggered sheet arrangement affects water adsorption behavior, demonstrating distinct types of water molecules and showcasing GO's potential for specific isotopic recognition in water.
Article Synopsis
- A sustainable society needs advanced energy storage devices that are lightweight, compact, long-lasting, and safe, going beyond current battery and supercapacitor technologies.
- Single-walled carbon nanotubes (SWCNTs) show promise for this purpose, as they are tough and can be formed into ropes that store nanomechanical energy.
- These SWCNT ropes can store energy with a density of up to 2.1 MJ/kg, which is significantly higher than mechanical steel springs and three times more than advanced lithium-ion batteries, while also being stable and safe in extreme temperatures.
The controlled production of nanowindows in graphene layers is desirable for the development of ultrathin membranes. Herein, we propose a single-atom catalytic oxidation method for introducing nanowindows into the graphene layers of single-walled carbon nanotubes (SWCNTs). Using liquid-phase adsorption, copper(II) 2,3,9,10,16,17,23,24-octakis(octyloxy)-29,31-phthalocyanine (CuPc) was adsorbed on SWCNT bundles at a surface coverage of 0.
View Article and Find Full Text PDFStandard clinical care of neonates and the ventilation status of human patients affected with coronavirus disease involves continuous CO monitoring. However, existing noninvasive methods are inadequate owing to the rigidity of hard-wired devices, insubstantial gas permeability and high operating temperature. Here, we report a cost-effective transcutaneous CO sensing device comprising elastomeric sponges impregnated with oxidized single-walled carbon nanotubes (oxSWCNTs)-based composites.
View Article and Find Full Text PDFNanoscale pores in graphene oxide (GO) control various important functions. The nanoporosity of GO is sensitive to low-temperature heating. Therefore, it is important to carefully process GO and GO-based materials to achieve superior functions.
View Article and Find Full Text PDFThe influence of an applied magnetic field on the formation of carbon materials from coal tar pitch is investigated. Under an applied magnetic field, crystallites in a mesophase resembling liquid crystals are magnetically oriented during the carbonization process. Compared with that under a nonmagnetic field, carbonized coal tar pitch under a strong magnetic field of 10 T, generated by a superconducting magnet, has a highly oriented structure of carbon crystallites.
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