Non-enzymatic H2O2 electrochemical sensor based on NiAl-LDH/PPy-Ag composite

Zhang, Kai; Zeng, Hong‐Yan; Wang, Mingxin; Li, Zhen

doi:10.1007/s11581-022-04777-z

Cited by 4 publications

(2 citation statements)

References 37 publications

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“…AgNPs@NiAl-NO 3 E app = À 0.9 V/Ag-AgCl pH 7.0 1.8 1 × 10 À 6 [31] AgNPs/PPy@NiAl-CO 3 E app = À 0.3 V/SCE pH 7.0 257 2.8 × 10 À 7 [32] Fe 3 O 4 NS@CuAl-CO 3 E app = À 0.7 V/ ? pH 7.4 -1 × 10 À 9 [33] the reaction zone [25].…”

Section: H 2 O 2 Oxidationmentioning

confidence: 99%

“…However, the presence of silver nanoparticles (AgNPs) anchored on the LDH particles provides an enhanced electrocatalytic activity with a sensitivity multiplied by eight (Table 1). This strategy was very recently improved using AgNPs anchored on a PPy@NiAl-LDH composite [32]. This latter sensor exhibited an excellent sensing performance towards H 2 O 2 with a high sensitivity (257 mA M À 1 cm À 2 ) and a low detection limit of 0.28 μM, measured at a less cathodic potential (E app = À 0.3 V/SCE) (Table 1).…”

Section: H 2 O 2 Oxidationmentioning

confidence: 99%

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Recent advances in layered double hydroxides‐based electrochemical sensors: Insight in transition metal contribution

Mousty

Farhat

2023

Electroanalysis

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Among the nanomaterials reported in the literature, layered double hydroxides (LDHs) are considered promising for the electrochemical sensor technology. Transition metal-based layered double hydroxides (TM-LDHs) show excellent electrocatalytic properties that facilitate redox reactions with analytes, e. g. H 2 O 2 , glucose or glyphosate. Elaboration of porous nano-structures with TM-LDHs nanosheets on the electrode surface allows a rapid diffusion of the analytes and a good accessibility of the TM active sites. An association of TM-LDHs with conductive materials, e. g. graphene or metal nanoparticles (M-NPs), improves the electronic conductivity in the LDH-based composites and also the electrocatalytic activity. With a selection of recent publications, the present mini-review aims to discuss about the specific electrocatalytic role played by TMs (Ni, Co, Cu, Mn and Fe) present in the LDH layers on the performance (sensitivity and detection limit) of these TM-LDHs-based sensors.

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Section: H 2 O 2 Oxidationmentioning

confidence: 99%

Section: H 2 O 2 Oxidationmentioning

confidence: 99%