title: An electrochemical sensing platform based on a new copper complex for the determination of hydrogen peroxide and nitrite.
abstract: A new copper(II) complex [Cu(C12H23N3)4Br2·2H2O] was synthesized and its structure was characterized by x-ray crystallography and elemental analysis. The copper atom had a distorted octahedron coordination involving two bromide anions and four nitrogen atoms from the 1-decyl-1H-[1,2,4]triazole ligands. Moreover, the electrochemical behavior and electrocatalysis of the carbon paste electrode (Cu-CPE) bulk-modified by the complex have been studied in detail. The Cu-CPE showed excellent electrocatalytic activities toward the reduction of hydrogen peroxide and nitrite, and the detection limit was much lower than that mentioned in earlier reports. This bulk-modified CPE has good reproducibility, long-term stability and surface renewability, which appear promising for constructing chemical sensors.
authors.affiliation: New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao Shandong 266042, People's Republic of China.
authors.forename: Rui Rui
authors.initials: RR
authors.lastname: Zhuang
authors.affiliation: New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao Shandong 266042, People's Republic of China.
authors.forename: Fang Fang
authors.initials: FF
authors.lastname: Jian
authors.affiliation: New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao Shandong 266042, People's Republic of China.
authors.forename: KeFei
authors.initials: K
authors.lastname: Wang
keywords: bulk-modified carbon paste electrode; crystal structure; electrocatalysis