Application of Mg-Al-LDH@MgFe<sub>2</sub>O<sub>4</sub> Nanocomposite Supported on Gold Micron-Dendrites as an Efficient Electrocatalyst for Ethanol Oxidation

Taei, M.; Fouladgar, Masoud; Hasanpour, Foroozan; Hasheminasab, Fatemeh

doi:10.1142/s179329202050037x

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…As seen from the related Nyquist plots (Figure C), the semicircle diameter of ZnCo-LDH-CH 3 COO – is smaller than that of ZnCo-LDH-Cl – and ZnCo-LDH-NO 3 – , indicating that ZnCo-LDH-CH 3 COO – has better conductivity than that of ZnCo-LDH-Cl – and ZnCo-LDH-NO 3 – and offers a rapid kinetics for the EOR process . Furthermore, ZnCo-LDH-CH 3 COO – exhibits better catalytic performance compared with that of the previous studies, such as MgCaFe-LDH/Au, Pd/CoAl-LDH, MgAl-LDH@MgFe2O4/Au, Au NPs/CuMgFe-LDH, etc., listed in Table .…”

Section: Resultsmentioning

confidence: 92%

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

et al. 2021

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Layered double hydroxides (LDHs) have been known as highly desired anode materials in the alkaline electrolyte. With regard to non-noble metal electrocatalysts, the interlayer spacing of LDHs has important influences on the electrocatalytic activity toward ethanol oxidation. Herein, ZnCo-LDHs with different interlayer spacing controlled by different interlayer anions (NO3 –, Cl–, and CH3COO–) are used as effective non-noble metal electrocatalysts for the ethanol oxidation reaction (EOR). The interlayer spacing of three non-noble metal electrocatalysts follows the order: ZnCo-LDH-CH3COO– (0.763 nm) > ZnCo-LDH-Cl– (0.733 nm) > ZnCo-LDH-NO3 – (0.719 nm). ZnCo-LDH-CH3COO– exhibits the highest mass activity (345.4 mA mg–1) for the EOR, which is 1.22 and 1.37 times higher than that of ZnCo-LDH-Cl– (283.8 mA mg–1) and ZnCo-LDH-NO3 – (252.8 mA mg–1), respectively, attributed to the enlarged interlayer space. This work proposes a potential mechanism of the catalytic process toward the EOR, which may provide a new idea to design non-noble metal electrocatalysts with high catalytic activity in direct ethanol fuel cells (DEFCs).

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Section: Resultsmentioning

confidence: 92%

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

et al. 2021

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Au Nanodendrites Decorated 2-(3,4-dihydroxybenzaldehyde) Malononitrile Modified Electrode for Electrocatalytic Determination of Hydrazine in the Presence of Hydroxylamine

Taei

Fouladgar

Banitaba

2022

NANO

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A selective and sensitive method was proposed for the determination of hydrazine by electrochemical deposition of Au nanodendrites (AuNDs) on the electropolymerized-2-(3,4-dihydroxybenzaldehyde) malononitrile (AuNDs/HBM/GCE). Deposition of AuNDs on the surface of HBM modified electrode effectively increased the electron transfer and active surface area. The surface analysis techniques substantiated the deposition of AuNDs and HBM molecules at the electrode surface. As-prepared modified electrode produced a sharp peak for hydrazine oxidation at [Formula: see text] versus Ag/AgCl, with a significant negative potential shift (about 0.43[Formula: see text]V) compared with unmodified glassy carbon electrode (GCE). The proposed electrode showed a linear response over 0.2[Formula: see text][Formula: see text]M–2.4[Formula: see text]mM with the detection limit of 0.08[Formula: see text][Formula: see text]M ([Formula: see text]. Moreover, AuNDs/HBM/GCE exhibited appropriate stability, selectivity and reproducibility. One of the brilliant advantages of the proposed method is the determination of hydrazine in the presence of hydroxylamine. The peaks of these two compounds are completely separate at [Formula: see text] and [Formula: see text][Formula: see text]V. Therefore, the fabricated electrode is capable of hydrazine quantification in real samples without apparent hydroxylamine interference.

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Application of Mg-Al-LDH@MgFe₂O₄ Nanocomposite Supported on Gold Micron-Dendrites as an Efficient Electrocatalyst for Ethanol Oxidation

Cited by 2 publications

References 24 publications

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

Au Nanodendrites Decorated 2-(3,4-dihydroxybenzaldehyde) Malononitrile Modified Electrode for Electrocatalytic Determination of Hydrazine in the Presence of Hydroxylamine

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Application of Mg-Al-LDH@MgFe2O4 Nanocomposite Supported on Gold Micron-Dendrites as an Efficient Electrocatalyst for Ethanol Oxidation

Cited by 2 publications

References 24 publications

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

Different Interlayer Anions Controlled Zinc Cobalt Layered Double Hydroxide Nanosheets for Ethanol Electrocatalytic Oxidation

Au Nanodendrites Decorated 2-(3,4-dihydroxybenzaldehyde) Malononitrile Modified Electrode for Electrocatalytic Determination of Hydrazine in the Presence of Hydroxylamine

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Application of Mg-Al-LDH@MgFe₂O₄ Nanocomposite Supported on Gold Micron-Dendrites as an Efficient Electrocatalyst for Ethanol Oxidation