A robust Mn@FeNi-S/graphene oxide nanocomposite as a high-efficiency catalyst for the non-enzymatic electrochemical detection of hydrogen peroxide

Abstract

Synthesis procedure of a Mn@FeNi-S/GO nanocomposite and its characterization and electrocatalytic performance.

Rational Design and Interlayer Effect of Dysprosium-Stannate Nanoplatelets Incorporated Graphene Oxide: A Versatile and Competent Electrocatalyst for Toxic Carbamate Pesticide Detection in Vegetables

“…To further confirm the Dy 2 Sn 2 O 7 /GO composite, FTIR was investigated, and the results are shown in Figure C. The FTIR spectrum of GO displayed the main characteristic peaks at 3401, 1398, and 1062 cm –1 corresponding to the hydroxyl stretching vibrations of C–OH, deformation of OH to C–OH, and stretching vibrations of C–O . Furthermore, the Dy 2 Sn 2 O 7 NPs showed two clear peaks, at 529 and 469 cm –1 , due to the stretching vibrations of metal–oxygen bonds .…”

Preparation of a nonenzymatic electrochemical sensor based on a g-C3N4/MWO4 (M: Cu, Mn, Co, Ni) composite for the determination of H2O2

“…Based on the proposed mechanism, the electroreduction of H 2 O 2 was carried out in two steps: (i) the adsorption of H 2 O 2 on the surface of the electrode and (ii) the reduction of H 2 O 2 to OH − by electrons on the surface of the g-C 3 N 4 /MWO 4 heterojunction. 56–58 The samples with enhanced absorption features and an excellent electron transfer performance are favored for H 2 O 2 reduction. Between the different MWO 4 , (M = Cu) CuWO 4 showed the lowest bandgap.…”

Electrochemical Cytosensor Based on a Gold Nanostar-Decorated Graphene Oxide Platform for Gastric Cancer Cell Detection

“…As a novel two-dimensional nanomaterial, graphene oxide (GO) has become a promising candidate in constructing biosensors and carrying metal nanomaterials owing to its large surface area, abundant functional groups, excellent conductivity, high hydrophilicity as well as outstanding mechanical stiffness [ 20 , 21 ]. Studies have demonstrated that employing GO to modify electrode surfaces could effectively optimize the electrical response signal of chloramphenicol [ 22 ], ractopamine, clenbuterol [ 23 ], hydrogen peroxide [ 24 ], hydrazine [ 25 ], and so forth [ 26 ]. Diverse compatible materials (e.g., ZnO [ 27 ], TiO 2 [ 28 ], CuO [ 29 ], Co 2 SiO 4 nanobelts [ 30 ]) have been exploited to pair with GO in the fabrication of electrochemical sensors to make full use of their outstanding properties.…”