Authors: Ling Mei Pengcheng Zhang Jiyun Chen Dandan Chen Ying Quan Ning Gu Genhua Zhang Rongjing Cui
Publish Date: 2016/02/10
Volume: 183, Issue: 4, Pages: 1359-1365
Abstract
Threedimensional nanoporous copper NPC was fabricated by dealloying ribbons of an AlCu alloy NPC possesses a clean metal surface and high electrical conductivity Subsequently a nonenzymatic electrochemical sensor was obtained by modifying a glassy carbon electrode with nanocomposites containing nanoporous copper and carbon black NPCCB in a nafion matrix The sensor if operated at a working voltage of 06 V vs SCE in 50 mM NaOH solution has a linear analytical range that extends from 60 μM to 34 mM of glucose and a 26 μM detection limit at an S/N ratio of 3 It also shows good selectivity over ascorbic acid uric acid dopamine and carbohydrates fructose saccharose and maltose The sensor also has a rapid amperometric response to hydrogen peroxide which can be quantified with a 12 μM detection limitNanoporous copper NPC was fabricated by dealloying ribbons of an AlCu alloy NPC exhibits threedimensional nanoporous structure A nanocomposite made from NPC and carbon black in a nafion matrix shows good sensing performance toward glucose and H2O2We greatly appreciate the support of the National Natural Science Foundation of China 20905010 Jiangsu Provincial Natural Science Foundation BK20131191 and BK20140416 Qing Lan Project SZ2014005 and Suzhou Science and Technology Project SYN201302 SYN201515 The work is also supported by Hebei Provincial Natural Science Foundation B2011205079
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