logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7799733 B1

PDFFull Text
Expired
Date of Patent:
Sep. 21, 2010

Filed:

Mar. 31, 2004

Process for preparing high surface area carbon

Applicants:

Deepali Dattatray Wagh, Maharashtra, IN;

Girish Vilas Arabale, Maharashtra, IN;

Mahesh Prakash Kulkarni, Maharashtra, IN;

Imtiaz Sirajuddin Mulla, Maharashtra, IN;

Vijayamohanan Kunjukrishanapillai, Maharashtra, IN;

Subhash Pundalik Vernekar, Maharashtra, IN;

Ratnesh Kumar Jha, Maharashtra, IN;

Nalini Edgar Jacob, Maharashtra, IN;

Inventors:

Deepali Dattatray Wagh, Maharashtra, IN;

Girish Vilas Arabale, Maharashtra, IN;

Mahesh Prakash Kulkarni, Maharashtra, IN;

Imtiaz Sirajuddin Mulla, Maharashtra, IN;

Vijayamohanan Kunjukrishanapillai, Maharashtra, IN;

Subhash Pundalik Vernekar, Maharashtra, IN;

Ratnesh Kumar Jha, Maharashtra, IN;

Nalini Edgar Jacob, Maharashtra, IN;

Assignee:

Council of Scientific and Industrial Research, New Delhi, IN;

Attorney:

Ladas & Parry LLP

Primary Examiner:

Stuart Hendrickson

Int. Cl.
CPC ...
C01B 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a process for making activated carbon having BET surface area up to 2000 m/g with pore diameter in the range 17-21 Å suitable for fabricating fuel cell and ultracapacitor electrode from coconut shell by treating carbon granules obtained from coconut shells with chemical activating agents like zinc chloride or potassium hydroxide at the room temperature range 500-800° C. in a dynamic flow of gases like Nor COfor 6-24 h followed by a specific cooling pattern to room temperature. Use of such activated carbon enables the fabrication of high performance ultracapacitor electrodes in HSOas exemplified by capacitance values like 180 F/g without the use of any normal metal additives such as RuOor IrO.

Find Patent Forward Citations

Wagh, Deepali. (2010). Process for preparing high surface area carbon (U.S. Patent No. 7799733). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7799733

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…