Method of making and using flexible elastic nanotube composite

Patent metadata

Field	Value
Publication number	US-9847151-B2
Application number	US-201414536752-A
Country	US
Kind code	B2
Filing date	Jul 8, 2014
Priority date	Jul 8, 2014
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

A method of fabricating and using of flexible elastic photo-thermoelectric or thermoelectric cells is being presented, where the thermoelectric materials have been used in nanohybrid (pristine form). The casing of the cells is made up of flexible elastic materials (plastic, rubber). The casing may have different shapes as rod, semi-circular, wave-form, spiral etc., that makes them easy for practical applications and the thermoelectric cells can potentially provide high efficiency. The flexible thermoelectric cells based on carbon nano-tubes (CNT) and its blend with cobalt oxide/graphene oxide nanohybrid have been made and tested.

First claim

What is claimed is:

1. A method of making a nanohybrid material for a thermoelectric cell, comprising:
dissolving 0.1M of cobaltous nitrate hexa-hydrate in a deionized water to make a homogeneous solution 1;
adding 1 wt % of a graphene oxide to the homogeneous solution 1 to form a mixed solution;
adjusting the pH of the mixed solution to 10;
stirring the pH adjusted mixed solution at 60° C. to obtain a stirred solution;
washing the stirred solution with an ethanol and air drying to obtain a Co 3 O 4 /graphene oxide nanohybrid material, and
blending a carbon nano tube at 70 wt. % with the Co 3 O 4 /graphene oxide nanohybrid material at 30 wt. % to obtain a blend for filling a casing for the thermoelectric cell.

2. The method of claim 1 , further comprising:
filling a casing with the carbon nano tube at 70 wt. % with the Co 3 O 4 /graphene oxide nanohybrid material at 30 wt. % blend; and
measuring a thermoelectric effect by Seebeck coefficients-light intensity relationship test of the filled casing for the thermoelectric cell with carbon nano tube at 70 wt. % with the Co 3 O 4 /graphene oxide nanohybrid material at 30 wt. %.

3. The method of claim 2 , wherein the casing is at least one of a plastic and rubber.

4. The method of claim 2 , wherein the casing is shaped in at least one a rod-shape, semicircular, wave and spiral shape.

5. The method of claim 1 , wherein the cobaltous nitrate hexa-hydrate forms a crystal on the graphene oxide which is in form of a sheet.

Assignees

• The Center Of Excellence For Advanced Materials Res (Ceamr)
• Univ King Abdulaziz

Inventors

• Asiri Abdullah Mohamed
• Khan Sher Bahadar
• Chani Muhammad Tariq Saeed
• Karimov Khasan

Classifications

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• H01B1/08

  oxides · CPC title

• H01L35/32

  Electricity · mapped topic

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• H01B1/04 Primary

  mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title