Development of non-enzymatic and highly selective hydrogen peroxide sensor based on nanoporous gold prepared by a simple unusual electrochemical approach

Nanoporous Gold Surface: An Efficient Platform for Hydrogen Evolution Reaction at Very Low Overpotential

“…40 Typically, such kind of pore structure has large surface area and roughness factor and can be more beneficial for electron transfer processes, leading to enhanced electrocatalytic activity for many electrochemical reactions. Besides, recently we witnessed the absence of oxide formation on the fabricated NPGF surface through energy dispersive X-ray analysis (EDX), 41 which confirms the outstanding purity of the NPGF compared to the material prepared by dealloying or template based methods.…”

One-step synthesis of γ-Fe2O3/Fe3O4 nanocomposite for sensitive electrochemical detection of hydrogen peroxide

“…Additionally, ferric oxyhydroxide can be reduced to magnetite both electrochemically on the electrode surface (10) or chemically by generated hydrogen (11) [26] :…”

“…However, these methods have significant drawbacks [10] . Since H 2 O 2 is an electroactive molecule, an electrochemical approach can be extensively employed for hydrogen peroxide determination [11] . The electrochemical sensing technologies have recently attracted a great deal of interest due to their simplicity, low cost, high sensitivity, and fast response [ 12 , 13 ].…”

Nanoporous Gold Microelectrode: A Novel Sensing Platform for Highly Sensitive and Selective Determination of Arsenic (III) using Anodic Stripping Voltammetry

“…Hence, the preparation of nanoporous gold via a simple and green method for the development of an arsenic sensor is still required and deserves attention. Recently, we reported a simple strategy based on anodization followed by electrochemical reduction in absence of binary alloys or chemical reducing agents and the fabricated nanoporous gold film (NPGF) electrode was used as dissolved oxygen and hydrogen peroxide sensors . Taking into account the need to measure As(III) at very low levels, microelectrodes are an attractive tool because of the high mass‐transport regime and decreased capacitance, resulting in enhanced signal‐to‐noise ratio (S/N).…”