Electrochemical behavior of graphene/Nafion/Azure I/Au nanoparticles composites modified glass carbon electrode and its application as nonenzymatic hydrogen peroxide sensor

3D porous metal-organic framework as an efficient electrocatalyst for nonenzymatic sensing application

“…A variety of electrode materials have been exploited to enhance the electrocatalytic activity towards glucose and H 2 O 2 since early studies on the electrochemistry of glucose and H 2 O 2 . In the past decade, the electrode materials including metals [5][6][7], metal oxide [8,9], carbon-based materials [10], and composites [11][12][13][14][15][16][17][18] have been extensively investigated as the candidates for the development of effective enzymeless sensors for the determination of glucose or H 2 O 2 .…”

A novel enzyme-free hydrogen peroxide sensor based on polyethylenimine-grafted graphene oxide-Pd particles modified electrode

“…The analytical performance comparision of H 2 O 2 with different materials modified electrode are listed inTable 1. The detection limit was lower than that with Ag-nanoparticle-decorated graphene (1.6 µM)[32], graphene/Nafion/Azure I/Au particles composites (10 µM)[33], a hybrid of chemically reduced GO with ferrocene (0.35 µM)[34], Ag nanoclusters/graphene (3 µM)[35], graphene wrapped Cu 2 O nanocubes (20.8 µM)[36], graphene-Pt nanocomposite (0.5 µM)[37], 3D…”

Simple and signal-off electrochemical biosensor for mercury(II) based on thymine-mercury-thymine hybridization directly on graphene

“…Graphene oxide (GO) was synthesized from natural graphite powder using a modified Hummers 0 method [38][39][40][41]. Graphene (GR) was prepared by the chemical reduction of GO using hydrazine as the reducing agent.…”