An investigation of ultrathin nickel-iron layered double hydroxide nanosheets grown on nickel foam for high-performance supercapacitor electrodes

Lu, Yi‐Chun; Jiang, Bin; Fang, Liang; Ling, Faling; Wu, Fang; Hu, Baoshan; Meng, Fanzhi; Niu, Kai-Yang; Lin, Feng; Zheng, Haimei

doi:10.1016/j.jallcom.2017.04.197

Cited by 104 publications

(49 citation statements)

References 42 publications

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“…Figs. 5b and c exhibit the CV measurement of NiAl LDH and NiAl LDO/LDS electrodes at various scan rates (5,10,20,30,40,50, and 100 mV s −1 ), respectively. The results indicate that the redox peaks present small shift and without obvious shape change with increasing scan rates.…”

Section: Faradaic Redox Reaction In Nial Ldo/lds Electrodementioning

confidence: 99%

Ultrathin petal-like NiAl layered double oxide/sulfide composites as an advanced electrode for high-performance asymmetric supercapacitors

Hui

Hui³

et al. 2017

J. Mater. Chem. A

164

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Layered double hydroxide (LDH) is an important layer-structured material for supercapacitors because of its versatile compositions, high theoretical capacitance, environmental friendliness, and low cost. However, the high resistivity of this material results in capacity fading, limiting its application in energy storage. Herein, we develop a facile approach to synthesize ultrathin petal-like NiAl layered double oxide/sulfide (LDO/LDS) composites with high electrochemical activity using hydrothermal reaction followed by sulfidation process. Scanning electron micrograph shows that the petal-like NiAl LDO/LDS composites are as thin as ~10 nm with a mean lateral dimension of ~1 µm. The NiAl LDO/LDS electrode delivers remarkably high specific capacitance of 2250.5 F g−1 at 1 A g−1 compared with that of NiAl LDH (1740.5 F g−1 at 1 A g−1) and possesses good cycling ability of 88.9% capacitance retention over 5000 cycles at 5 A g−1. Asymmetric supercapacitor (ASC) is fabricated using NiAl LDO/LDS and graphene as positive and negative electrodes, respectively. NiAl LDO/LDS//G ASC exhibits specific capacitance of 153.3 F g−1 at 1 A g−1, high energy density of 47.9 Wh kg−1 at a power density of 750 W kg−1, and reliable cycling stability of 95.68% capacitance retention after 5000 cycles. Results highlight that NiAl LDO/LDS composites are promising materials for energy storage devices with long cycling stability

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Section: Faradaic Redox Reaction In Nial Ldo/lds Electrodementioning

confidence: 99%

Ultrathin petal-like NiAl layered double oxide/sulfide composites as an advanced electrode for high-performance asymmetric supercapacitors

Hui

Hui³

et al. 2017

J. Mater. Chem. A

164

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“…The high recombination rate of photogenerated electron-hole pairs hinders the degradation of methyl orange [21]. The decreasing in distance between NiFe-Fe LDHs sheets could increase particle connectivity and assist in the electron-hole transfer throughout the layered framework, thereby contributing to the high photocatalytic performance [3]. In our experiments, NiFe-Fe LDHs with an appropriate network of pores and more Fe eleme nt could facilitate the efficient transportation of photogenerated charges among the LDHs.…”

Section: Resultsmentioning

confidence: 79%

“…The product was dried at room temperature and labeled as NiFe LDHs. Studies [3,4] have reported that the initial mole ratio of M 2+ to M 3+ was 1 ~ 4. After reaction, the mole ratio of M 2+ to M 3+ is usually different with that of initial mole ratio.…”

Section: Synthesis and Modification Of Nife Ldhsmentioning

confidence: 99%

“…Recently many attentions have been focused on LDHs for their applications in environmental remediation, solar energy storage and conversion, owing to their readily exchanged interlayer anions and tuned composition of the brucite-like layers [2]. However, the process always takes a long time (more than 12 h) [3,4]. The fast recombination rate of the photogenerated electron-hole pairs and the low removal efficient limit their large-scale practical applications [5,6].…”

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confidence: 99%

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Modification of Nife Layered Double Hydroxide and Photocatalytic Activity

Wang

Fang

2019

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Modifying materials by ions with multiple valence states is an effective way for enhancing their properties. NiFe layered double hydroxides (NiFe LDHs) were prepared by using a hydrothermal method. Efficient LDH photocatalyst was synthesized by the modification of NiFe LDHs with Fe(III). Electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller surface area, photoluminescence spectroscopy, and UV-Vis diffuse reflectance spectroscopy were used to investigate the morphology, crystal structure, and optical properties of the NiFe LDHs. The photocatalytic and adsorption performances were examined in the degradation of methyl orange. NiFe LDHs exhibited higher adsorption property but lower photocatalytic activity. After modification with Fe(III), the introducing of Fe ions and recrystallization of LDHs led to the distance decreasing between NiFe LDH sheets and exhibit higher photocatalytic performance.

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“…NiMn LDH/CNT 2960@ 1.5A/g 2338@30A/g [57] NiCo LDH/CNT 2046@1A/g 1335@15A/g [61] CoMn LDH@CC 1079@2.1 891@42A/g [56] CoAl LDH@GO 581.6@2A/g - [62] NiFe LDH@Ni 2708@5A/g 1456@10A/g [63] NiAl LDH@G 1255.8@1A/g 755.6@6A/g [64] NiZn LDH 1320@1A/g 580@20A/g [65] MgAl LDH@rGO 1334@1A/g ~626@10A/g [66] CNT: carbon nanotube; CC: carbon cloth; GO: graphene oxide…”

Section: Materials Specific Csp (F/g) Ratementioning

confidence: 99%

Nanostructured bimetallic sulfides as Na ion battery anodes

Chen¹

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An investigation of ultrathin nickel-iron layered double hydroxide nanosheets grown on nickel foam for high-performance supercapacitor electrodes

Cited by 104 publications

References 42 publications

Ultrathin petal-like NiAl layered double oxide/sulfide composites as an advanced electrode for high-performance asymmetric supercapacitors

Ultrathin petal-like NiAl layered double oxide/sulfide composites as an advanced electrode for high-performance asymmetric supercapacitors

Modification of Nife Layered Double Hydroxide and Photocatalytic Activity

Nanostructured bimetallic sulfides as Na ion battery anodes

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