Patent · US Active

Quantitative method of number surface area of graphene material

US10670505B2 · kind B2 · utility

0Cited by

1References

9Claims

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Assignee

NATIONAL TSING HUA UNIVERSITY · TW

Inventors

De-Hao Tsai · Hsinchu, TW
Wei-Chang Chang · New Taipei, TW

Key dates

Filing date	Apr 11, 2018
Grant date	Jun 2, 2020
Priority date	—
Expiry date	Aug 3, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/0046
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A quantitative method of number surface area of a graphene material includes the following steps. The graphene material is mixed with a solution to form a colloidal solution containing the graphene material. The colloidal solution is atomized to form a plurality of aerosols containing the graphene material. The size of the aerosols is screened. The screened aerosols are counted to obtain a number concentration of the screened aerosols. A surface of the screened aerosols is charged and a current amount on the surface-charged aerosols is measured. The number surface area of the graphene material is calculated based on the current amount and the number concentration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.