Nitrogen and Sulfur Co-Doped Glucose-Based Porous Carbon Materials with Excellent Electrochemical Performance for Supercapacitors. Issue 7 (1st January 2017)

• Record Type: Journal Article
• Authors: Chang, Chengshuai; Yang, Xuena; Xiang, Shisen; Lin, Xiaotian; Que, Haoan; Li, Mei
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 7(2017)
• Page Start: A1601
• Page End: A1607
• Publication Date: 2017-01-01
• Subjects: Electrochemical performance -- Glucose -- Heteroatom doped -- Porous carbon materials -- Supercapacitors -- Thiourea; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1341707jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Nitrogen and sulfur co-doped glucose (GC)-based porous carbon electrode materials for supercapacitors have been prepared by a hydrothermal process using thiourea as nitrogen and sulfur sources and subsequent activation with KOH at 750°C. The specific surface area of doped porous GC reaches 561.44 m 2 g −1 when the mass ratio of KOH to GC was 1:1 and the mesoporous volume is 0.125 cm 3 g −1 . The electrochemical performances of the electrode made with the doped porous GC were tested in a three-electrode system with 6 M KOH solution as electrolytes. The specific capacitance of the activated porous GC reaches 281 F g −1 at the current density of 1 A g −1 and increases about 7% at the current density of 5 A g −1 after 5000 charge-discharge cycles, indicating its excellent electrochemical stability as a promising electrode.