One-step facile synthesis of nickel–chromium layered double hydroxide nanoflakes for high-performance supercapacitors

Chen, Zuo; Deng, Hao; Zhang, Man; Yang, Zhiyu; Hu, Di; Wang, Yuchen; Yan, Kai

doi:10.1039/d0na00178c

Cited by 29 publications

(13 citation statements)

References 55 publications

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“…The NiCr LDH has a layered crystal structure with firmly stacked layers, as can be observed. Similar morphology was reported for NiCr LDH in the previous works [ 65 , 66 ]. Additionally, regarding the modified electrodes, SEM images of Au bare electrodes are shown in Fig.…”

Section: Resultssupporting

confidence: 90%

Self-assembled monolayer-assisted label-free electrochemical genosensor for specific point-of-care determination of Haemophilus influenzae

et al. 2023

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For sensitive detection of the L-fuculokinase genome related to the Haemophilus influenzae ( H . influenzae ), this research work demonstrates the label-free electrochemical-based oligonucleotide genosensing assay relying on the performing hybridization process. To enhance the electrochemical responses, multiple electrochemical modifier-tagged agents were effectively utilized. For attaining this goal, NiCr-layered double hydroxide (NiCr LDH) has been synthesized and combined with biochar (BC) to create an efficient electrochemical signal amplifier that has been immobilized on the surface of the bare Au electrode. Low detection and quantification limits (LOD and LOQ) associated with the designed genosensing bio-platform to detect L-fuculokinase have been achieved to 6.14 fM and 11 fM, respectively. Moreover, the wide linear range of 0.1 to 1000 pM demonstrates the capability of the designed platform. Investigated were the 1-, 2-, and 3-base mismatched sequences, and the negative control samples clarified the high selectivity and better performance of the engineered assay. The values of 96.6–104% and 2.3–3.4% have been obtained for the recoveries and RSDs, respectively. Furthermore, the repeatability and reproducibility of the associated bio-assay have been studied. Consequently, the novel method is appropriate for rapidly and quantitatively detecting H . influenzae , and is considered a better candidate for advanced tests on biological samples such as urine samples. Graphical abstract

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Section: Resultssupporting

confidence: 90%

Self-assembled monolayer-assisted label-free electrochemical genosensor for specific point-of-care determination of Haemophilus influenzae

et al. 2023

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“…Solution B was then slowly titrated into solution A, and the pH of the reaction mixture was maintained at 8.5. [ 20 ] The reaction solution in the beaker was kept for 24 h under vigorous stirring conditions. The obtained product was centrifuged and washed three times till the pH of the product reached 7.…”

Section: Methodsmentioning

confidence: 99%

Thermal behaviour and crystallization analysis of ethylene‐propylene (EP) copolymer and EP‐styrene terpolymer

et al. 2023

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Polyolefin copolymers have been an important commercial product since their invention. Hence, it is crucial to study their co‐ and terpolymers due to their extensive use. In this paper, in situ synthesis of ethylene‐propylene (EP) copolymer, its terpolymer with styrene, and composites with nickel‐chromium (NiCr) layered double hydroxide (LDH) has been reported along with their thermal properties. Styrene had a significant impact on the activity, increasing the yield by 195% and 235% with an addition of 0.5 and 1.0 mL styrene, respectively, compared to neat EP. The crystallinity, melting temperature, and thermal stability decreased due to styrene; nevertheless, it performed better compared to a similar work of terpolymer where α‐olefin was the third monomer. The incorporation of NiCr LDH as a drop‐in filler during in situ polymerization affected adversely the thermal stability of the terpolymer. However, the ultrasonication treatment improved the thermal stability of the final product.

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“…[12][13][14][15] However, they exhibit insufficient exposure of active sites due to easy agglomeration and undesirable specic capacitance due to the undesirable electronic structure. [16][17][18] In order to effectively address these deciencies, certain researchers have posited that adding another metal to form ternary metal hydroxide layers (LDHs) could further enhance the overall properties by electronic structure modulation. 19,20 Li et al 21 prepared Ga 3+ iondoped NiCoGa-LDHs@CC with a specic capacitance of 2012.5 F g −1 at 1 A g −1 by the hydrothermal method, which has a better capacitive performance than binary NiCo-LDH and NiGa-LDH.…”

Section: Introductionmentioning

confidence: 99%

High-performance ternary NiFeCo-LDH nanosheets for supercapacitors by cation modulation and sodium dodecyl sulfonate intercalation

Li,

Yang,

Chen

et al. 2024

J. Mater. Chem. A

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One-step facile synthesis of nickel–chromium layered double hydroxide nanoflakes for high-performance supercapacitors

Abstract: Rational design and synthesis of efficient electrodes with pronounced energy storage properties are crucial for supercapacitors.

Cited by 29 publications

References 55 publications

Self-assembled monolayer-assisted label-free electrochemical genosensor for specific point-of-care determination of Haemophilus influenzae

Self-assembled monolayer-assisted label-free electrochemical genosensor for specific point-of-care determination of Haemophilus influenzae

Thermal behaviour and crystallization analysis of ethylene‐propylene (EP) copolymer and EP‐styrene terpolymer

High-performance ternary NiFeCo-LDH nanosheets for supercapacitors by cation modulation and sodium dodecyl sulfonate intercalation

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