Communication—Highly Sensitive Ag/ZnO Nanorods Composite Electrode for Non-Enzymatic Urea Detection. Issue 12 (30th August 2017)

• Record Type: Journal Article
• Authors: Yoon, Jaesik; Lee, Eunji; Lee, Doohee; Oh, Tae-Sik; Yoon, Young Soo; Kim, Dong-Joo
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 12(2017)
• Page Start: B558
• Page End: B560
• Publication Date: 2017-08-30
• Subjects: Electrocatalyst -- Silver catalyst -- Zinc oxide nanorods; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1341712jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Sputtered Ag on zinc oxide (ZnO) nanorod-structures grown on a carbon paper substrate were investigated as an electrocatalyst for non-enzymatic oxidation of urea. The Ag/ZnO nanorod-modified electrodes were characterized by cyclic voltammetry and chronoamperometry in 1 M KOH electrolyte with 0.33 M urea. The synergetic electrochemical performance due to the combined Ag and ZnO nanorod materials shows a good sensitivity of 0.1622 μAμM −1 cm −2 with a low detection limit of 13.98 μM. Simple and scalable fabrication of the electrode can make it a potential candidate for non-enzymatic urea sensor with reproducible and sensitive detection.