An electrogenerated chemiluminescence sensor prepared with a graphene/multiwall carbon nanotube/gold nanocluster hybrid for the determination of phenolic compounds

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Abstract
A dispersible graphene/multiwall carbon nanotube/gold nanocluster (GP/MWCNTs/AuNCs) hybrid in aqueous solution was prepared in situ, and characterized by transmission electron microscopy (TEM) and ultraviolet-visible (UV-vis) spectroscopy. Based on the fact that phenolic compounds can enhance the electrogenerated chemiluminescence (ECL) signal at the GP/MWCNTs/AuNCs modified glassy carbon electrode in the presence of peroxydisulfate, an ECL sensor was proposed for the determination of phenolic compounds with high sensitivity, good repeatability and stability. Due to its fascinating features, such as good water solubility and excellent stability, the GP/MWCNTs/AuNCs hybrid would offer a suitable catalytic platform for phenolic compounds and provide potential promise for the construction of ECL sensors.

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