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Article
ZnO nanosheet arrays/graphene foam: voltammetric determination of dopamine in the presence of ascorbic acid and uric acid
Nickel foam (NF) was used as sacrificial template to synthesize graphene foam (GF) by chemical vapor deposition (CVD). ZnO NSAs were grown on the GF by hydrothermal synthesis to fabricate ZnO NSA/GF, which was...
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Article
Electrochemical determination of levodopa in the presence of uric acid using ZnO nanoflowers-reduced graphene oxide
ZnO nanoflowers (ZnO NFs) were prepared by hydrothermal synthesis and graphene oxide nanosheets (GO NSs) were synthesized by the Hummer’s method. Then, ZnO NFs were dispersed in GO dispersion and sprayed onto ...
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Article
Synthesis of graphene/ZnO nanoflowers and electrochemical determination of levodopa in the presence of uric acid
ZnO nanoflowers (ZnONFs) were synthesized by a simple hydrothermal method. Then, ZnONFs suspension was sprayed onto the indium tin oxide coated glass. Finally, graphene was deposited on the surface of ZnONFs (...
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Article
Preparation of three-dimensional hollow graphene balls and simultaneous electrochemical determination of dopamine and uric acid
Nickel nanoparticles (Ni-NPs) were synthesized by the reduction reaction of NiCl2·6H2O, N2H4·H2O and NaOH, and then the graphene layers were coated on the surface of Ni-NPs by the carbide cladding method while tr...