title: Rapid synthesis of rGO conjugated hierarchical NiCo2O4hollow mesoporous nanospheres with enhanced glucose sensitivity.
abstract: NiCo2O4nanospheres, a type of conjugated reduced graphene oxide (rGO), are compounded by a simple and easy synthesis of Cu2O/GO and fabricated NiCo2O4/rGO nanocomposites based on a Cu2O/GO template. The structure and morphology of the hierarchical NiCo2O4/rGO are characterized by x-ray diffraction, x-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The electrochemistry properties of NiCo2O4/rGO composites toward glucose are determined based on a glassy carbon electrode, and the results indicate that the hollow nanospheres of NiCo2O4/rGO could achieve high-sensitivity detections of glucose. The NiCo2O4/rGO composite has a detection range of 0.04 mM to 1.28 mM, a sensitivity of 2082.57 μA mM-1cm-2, and a detection limit of 0.7 μM. The composite further exhibits obvious stability, superior reproducibility, and excellent selectivity. This study demonstrates that NiCo2O4/rGO is a unique and material with high potential in glucose sensing.
authors.affiliation: State Key Laboratory of Marine Resource Utilization in South China Sea, Key Laboratory of Tropical Biological Resources of Ministry of Education Hainan University, Haikou 570228, People's Republic of China.
authors.forename: Bingrong
authors.initials: B
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Cao
authors.forename: Yong
authors.initials: Y
authors.lastname: Chen
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Lai
authors.forename: Juan
authors.initials: J
authors.lastname: Peng
authors.forename: Jinchun
authors.initials: J
authors.lastname: Tu
authors.forename: Xiaotian
authors.initials: X
authors.lastname: Li