Nickel–cobalt double hydroxide nanosheets wrapped amorphous Ni(OH)<sub>2</sub> nanoboxes: development of dopamine sensor with enhanced electrochemical properties

Zhang, Sai; Fu, Yanyi; Sheng, Qinglin; Zheng, Jianbin

doi:10.1039/c7nj01835e

Cited by 27 publications

(5 citation statements)

References 43 publications

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“…However, SS 2 shows an amorphous character. The SAED pattern of BS 3 corresponds to the (422), (220), and (311) crystal planes of nickel cobaltite, whereas the SAED patterns of SS 1 and SS 2 can be indexed to the crystal planes of both nickel cobaltite ((220), (400), (222), and (422)) and nickel cobalt hydroxide ((002), (012), and (003)). , The results are in accordance with the FTIR, XRD, and EDAX analyses, which conclude that a pure form of nickel cobaltite is formed only in the BS 3 sample. Thus, it is obvious that a regular flake of optimum thickness and crystallinity is achieved using the bisolvent-assisted synthesis.…”

Section: Resultssupporting

confidence: 82%

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

et al. 2020

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Herein, we report a facile regulation of the interface of two immiscible solvents, n-butanol and water, to achieve the physicochemical tuning of the transition-metal oxide nickel cobaltite. The crystal nucleation and the growth of nickel cobaltite into distinct morphology are highly dependent on the orientation and the mass transfer of the reactive species through the reactive interface layer. A distinct two-dimensional flakelike (1 nm thickness) nickel cobaltite is formed at the interface of n-butanol/water in a 1:1 solvent ratio. Rather, one-dimensional needles and irregular interconnected networks are achieved, as aqueous and organic counterparts are, respectively, increased. The impact of the solvent ratio on doping metal ions (Co2+ and Ni2+) at the interstitial sites of fcc spinel structure is evident from the X-ray and electronic absorption investigations. It is presumed that the interface-assisted synthesis may provide a simple and novel way to develop and adopt various transition-metal oxides for wide applications.

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Section: Resultssupporting

confidence: 82%

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

et al. 2020

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“…An interesting method homogeneously involves doping catalytic metal hydroxides. Zhang et al doped NiCo-LDHs with Ni(OH) 2 nanoboxes for improved DA detection [128]. Thin NiCo-LDHs were synthesized via a hydrothermal process and reacted with Another interesting method of improving the electron mobility in LDHs is phosphorization.…”

Section: Dopaminementioning

confidence: 99%

Recent Advances in Layered Double Hydroxide-Based Electrochemical and Optical Sensors

Kim

Varga

Adhikari³

et al. 2021

Nanomaterials

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Layered double hydroxides (LDHs) have attracted considerable attention as promising materials for electrochemical and optical sensors owing to their excellent catalytic properties, facile synthesis strategies, highly tunable morphology, and versatile hosting ability. LDH-based electrochemical sensors are affordable alternatives to traditional precious-metal-based sensors, as LDHs can be synthesized from abundant inorganic precursors. LDH-modified probes can directly catalyze or host catalytic compounds that facilitate analyte redox reactions, detected as changes in the probe’s current, voltage, or resistance. The porous and lamellar structure of LDHs allows rapid analyte diffusion and abundant active sites for enhanced sensor sensitivity. LDHs can be composed of conductive materials such as reduced graphene oxide (rGO) or metal nanoparticles for improved catalytic activity and analyte selectivity. As optical sensors, LDHs provide a spacious, stable structure for synergistic guest–host interactions. LDHs can immobilize fluorophores, chemiluminescence reactants, and other spectroscopically active materials to reduce the aggregation and dissolution of the embedded sensor molecules, yielding enhanced optical responses and increased probe reusability. This review discusses standard LDH synthesis methods and overviews the different electrochemical and optical analysis techniques. Furthermore, the designs and modifications of exemplary LDHs and LDH composite materials are analyzed, focusing on the analytical performance of LDH-based sensors for key biomarkers and pollutants, including glucose, dopamine (DA), H2O2, metal ions, nitrogen-based toxins, and other organic compounds.

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“…A comparison of the performance between these nanochain based catalyst and some of the recently reported catalyst for dopamine oxidation is presented in Table S-5. A better performance is observed from the nanochains compared to most other reported dopamine catalyst [27][28][29][30][31][32].…”

mentioning

confidence: 75%

“…† A better performance is observed from the nanochains compared to most other reported dopamine catalysts. [27][28][29][30][31][32]…”

Section: Papermentioning

confidence: 99%

Au–Pt–Ni nanochains as dopamine catalysts: role of elements and their spatial distribution

2023

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Nickel–cobalt double hydroxide nanosheets wrapped amorphous Ni(OH)₂ nanoboxes: development of dopamine sensor with enhanced electrochemical properties

Abstract: The Ni(OH)2/NiCo-LDHs nanocomposites accelerated the electron transfer and successfully realized dopamine catalytic oxidation.

Cited by 27 publications

References 43 publications

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

Recent Advances in Layered Double Hydroxide-Based Electrochemical and Optical Sensors

Au–Pt–Ni nanochains as dopamine catalysts: role of elements and their spatial distribution

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Nickel–cobalt double hydroxide nanosheets wrapped amorphous Ni(OH)2 nanoboxes: development of dopamine sensor with enhanced electrochemical properties

Abstract: The Ni(OH)2/NiCo-LDHs nanocomposites accelerated the electron transfer and successfully realized dopamine catalytic oxidation.

Cited by 27 publications

References 43 publications

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

n-Butanol/Water Interface-Aided Physicochemical Tuning of Two-Dimensional Transition-Metal Oxides

Recent Advances in Layered Double Hydroxide-Based Electrochemical and Optical Sensors

Au–Pt–Ni nanochains as dopamine catalysts: role of elements and their spatial distribution

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Nickel–cobalt double hydroxide nanosheets wrapped amorphous Ni(OH)₂ nanoboxes: development of dopamine sensor with enhanced electrochemical properties