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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 12258703 B1

PDFFull Text
Date of Patent:
Mar. 25, 2025

Filed:

Dec. 24, 2020

Method for preparation of plasma-treated nanofiber-based hydrogen gas sensing material

Applicant:

Chongqing University, Chongqing, CN;

Inventors:

Feipeng Wang, Chongqing, CN;

Kelin Hu, Chongqing, CN;

Zijia Shen, Chongqing, CN;

Hongcheng Liu, Chongqing, CN;

Jianglin Xiong, Chongqing, CN;

Jian Li, Chongqing, CN;

Youyuan Wang, Chongqing, CN;

Weigen Chen, Chongqing, CN;

Lin Du, Chongqing, CN;

Kaizheng Wang, Chongqing, CN;

Qi Zhao, Chongqing, CN;

Assignee:

CHONGQING UNIVERSITY, Chongqing, CN;

Attorney:

Chiesa Shahinian & Giantomasi PC

Primary Examiner:

Jeffrey M Wollschlager

Assistant Examiner:

Xue H Liu

Int. Cl.
CPC ...
D01D 1/02 (2006.01); D01D 5/00 (2006.01); D01D 10/02 (2006.01); D01F 1/10 (2006.01); D01F 6/26 (2006.01); D06M 10/02 (2006.01); G01N 33/00 (2006.01); D06M 101/18 (2006.01);
U.S. Cl.
CPC ...
D06M 10/025 (2013.01); D01D 1/02 (2013.01); D01D 5/003 (2013.01); D01D 10/02 (2013.01); D01F 1/10 (2013.01); D01F 6/26 (2013.01); G01N 33/005 (2013.01); D06M 2101/18 (2013.01); D10B 2321/08 (2013.01); D10B 2401/16 (2013.01); D10B 2505/00 (2013.01);
Abstract

The present disclosure provides a preparation method of a plasma-treated nanofiber-based hydrogen gas sensing material, including the following steps: (1) stirring a mixed solution of absolute ethanol, polyvinyl pyrrolidone (PVP), N,N-dimethylformamide, SnCl·HO, and Zn(CHCOO)·2HO uniformly on a constant-temperature magnetic stirrer to obtain a spinning solution; (2) electrospinning the spinning solution and depositing on an aluminum foil to obtain a spinning fiber; (3) annealing the spinning fiber in a muffle furnace to obtain a hydrogen gas sensing material sample; and (4) subjecting the hydrogen gas sensing material sample to a vacuum argon plasma treatment with a Hall ion source to obtain the nanofiber-based hydrogen gas sensing material. In the method, nanofibers are prepared by electrospinning and subjected to the vacuum argon plasma treatment through the Hall ion source. The prepared sensing material has an extremely large specific surface area, and gas-sensing properties of rapid response and high sensitivity to hydrogen gas.

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