US 10,238,762 B2 · Incorporating metals, metal oxides and compounds on the inner and outer surfaces of nanotubes and between the walls of the nanotubes and preparation thereof

Abstract

A multi-walled titanium-based nanotube array containing metal or non-metal dopants is formed, in which the dopants are in the form of ions, compounds, clusters and particles located on at least one of a surface, inter-wall space and core of the nanotube. The structure can include multiple dopants, in the form of metal or non-metal ions, compounds, clusters or particles. The dopants can be located on one or more of on the surface of the nanotube, the inter-wall space (interlayer) of the nanotube and the core of the nanotube. The nanotubes may be formed by providing a titanium precursor, converting the titanium precursor into titanium-based layered materials to form titanium-based nanosheets, and transforming the titanium-based nanosheets to multi-walled titanium-based nanotubes.

Claims23

Dependent claims

A multi-walled titanium-based nanotube array containing one or more metal or non-metal dopants wherein said dopants comprise ions, compounds, clusters and particles located on at least one of a surface, inter-wall space and core of the nanotube, wherein the nanotube array comprises:

a nanotube structure having at least one dopant located on the surface and a second dopant located in the inter-wall space of the nanotube, or one dopant located on the surface and a second dopant located in the core of the nanotube, or one dopant located on the core and a second dopant located on the inter-wall space of the nanotube, wherein the dopants comprise one or more dopants selected from the group of:
inorganic dopant materials selected from the group consisting of Group IB, IIB, IVB, V and VIII elements,
materials selected from the group consisting of V, Co, Cu, Zn, Pd, Ag, Pt and Au, used as metal or nonmetal dopants, and
a non metallic organic compound comprising a non metallic dye.

1 more element

A method of preparation of multi-walled titanium-based nanotubes containing a metal and/or non-metal dopants selectively located on at least one of a surface of the nanotube, as an interlayer within the nanotube, or a core of the nanotube, the method comprising:

providing a titanium precursor;
converting the titanium precursor into titanium-based layered materials to form titanium-based nanosheets;
and
transforming the titanium-based nanosheets to multi-walled titanium-based nanotubes, thereby providing a nanotube structure having at least one dopant located on the surface and a second dopant located in the inter-wall space (interlayer) of the nanotube, or one dopant located on the surface and a second dopant located in the core of the nanotube, or one dopant located on the core and a second dopant located on the inter-wall space of the nanotube.

1 more element

Dependencies are inferred from the claim text.

Incorporating metals, metal oxides and compounds on the inner and outer surfaces of nanotubes and between the walls of the nanotubes and preparation thereof

Life of this patent

Incorporating metals, metal oxides and compounds on the inner and outer surfaces of nanotubes and between the walls of the nanotubes and preparation thereof

Life of this patent

Abstract

Claims23