IDiyas

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 11231381 B1

PDFFull Text
Date of Patent:
Jan. 25, 2022

Filed:

Jan. 23, 2018

Hydrogen gas sensors based on nanoparticle-decorated, patterned carbon nanotube ropes

Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventors:

Reginald M. Penner, Irvine, CA (US);

Xiaowei Li, Irvine, CA (US);

Assignee:

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);

Attorney:

Nguyen Tarbet LLC

Primary Examiner:

Jyoti Nagpaul

Int. Cl.
CPC ...
G01N 1/00 (2006.01); G01N 27/12 (2006.01); H01L 51/00 (2006.01); G01N 27/414 (2006.01); G01N 33/00 (2006.01); C25D 5/18 (2006.01); C25D 5/34 (2006.01); C25D 7/12 (2006.01); G03F 7/16 (2006.01); G03F 7/20 (2006.01); C25D 3/12 (2006.01); C25D 5/54 (2006.01); C25D 5/02 (2006.01); C25D 13/04 (2006.01); C01B 32/168 (2017.01); C25D 3/50 (2006.01);
U.S. Cl.
CPC ...
G01N 27/127 (2013.01); C01B 32/168 (2017.08); C25D 3/12 (2013.01); C25D 5/022 (2013.01); C25D 5/18 (2013.01); C25D 5/34 (2013.01); C25D 5/54 (2013.01); C25D 7/12 (2013.01); C25D 13/04 (2013.01); G01N 27/4141 (2013.01); G01N 33/005 (2013.01); G03F 7/164 (2013.01); G03F 7/70 (2013.01); H01L 51/0006 (2013.01); H01L 51/0018 (2013.01); H01L 51/0048 (2013.01); C01B 2202/02 (2013.01); C25D 3/50 (2013.01); G01N 27/4146 (2013.01); H01L 51/0049 (2013.01);
Abstract

Nanoparticle(NP)-decorated carbon nanotube (CNT) ropes used as sensing elements for hydrogen gas (H) chemiresistors are described herein. The NP-decorated CNT rope sensors were prepared by dielectrophoretic deposition of a single semiconducting CNT rope followed by the electrodeposition of metal nanoparticles to highly disperse said nanoparticles on the CNT surfaces. The rope sensors produced a relative resistance change 20-30 times larger than what was observed at single, pure Pd nanowires. Thus, the rope sensors improved upon all Hsensing metrics (speed, dynamic range, and limit-of-detection) relative to single Pd nanowires.

Find Patent Forward Citations

Loading…