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.:
Date of Patent:
Oct. 19, 2021
Filed:
May. 19, 2016
Jiangsu University, Jiangsu, CN;
Xiliang Zhang, Jiangsu, CN;
Kun Xu, Jiangsu, CN;
Shoujuan Cui, Jiangsu, CN;
Miaomiao Geng, Jiangsu, CN;
Pingping Li, Jiangsu, CN;
Shiqing Zhang, Jiangsu, CN;
Jiangsu University, Jiangsu, CN;
Abstract
Provided is a fabrication method for a composite planar pH sensor modified by graphene film including: slotting into substrate, setting copper foil on both sides, and setting leads on the copper foil; coating graphene film on the copper foils using micro mechanical stripping method to form the first graphene film and the second graphene film; depositing Sb layer and SbOlayer successively on the first graphene film by magnetron sputtering method, and coating Nafion™ perfluorinated sulfonic acid membrane on the SbOlayer by spin-coating method to fabricate pH working electrode; depositing Ag layer on the second graphene film and dipping in FeClsolution to form AgCl layer; coating the third graphene film on the AgCl layer to fabricate reference electrode. The composite planar pH sensor modified by graphene film may be used in pH measurement for solid, semisolid, mash and solution samples.