Nickel-Manganese Layered Double Hydroxide Nanosheets Supported on Nickel Foam for High-performance Supercapacitor Electrode Materials

Guo, Xiao Long; Liu, Xiao Ying; Hao, Xiaodong; Zhu, Shi Jin; Dong, Fan; Zhong, Wen; Zhang, Jintao

doi:10.1016/j.electacta.2016.02.080

Cited by 212 publications

(56 citation statements)

References 41 publications

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“…The CV curves of NiMn‐LDH and Ni(OH) 2 were shown in Figure S3a in the Supporting Information. The oxidation peak of NiMn‐LDH shifts to the low potential, and this conclusion is agreed to other works . Figure b manifests the charge–discharge curves of LDH, LDH/PC‐ x composites at 1 A g −1 .…”

Section: Resultssupporting

confidence: 89%

Polyhedral‐Like NiMn‐Layered Double Hydroxide/Porous Carbon as Electrode for Enhanced Electrochemical Performance Supercapacitors

Liu

et al. 2017

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Polyhedral-like NiMn-layered double hydroxide/porous carbon (NiMn-LDH/PC-x) composites are successfully synthesized by hydrothermal method (x = 1, 2 means different mass percent of porous carbon (PC) in composites). The NiMn-LDH/PC-1 composites possess specific capacitance 1634 F g at a current density of 1 A g , and it is much better than that of pure LDH (1095 F g at 1 A g ). Besides, the sample can retain 84.58% of original capacitance after 3000 cycles at 15 A g . An asymmetric supercapacitor with NiMn-LDH/PC-1 as anode and activated carbon as cathode is fabricated, and the supercapacitor can achieve an energy density of 18.60 Wh kg at a power density of 225.03 W kg . The enhanced electrochemical performance attributes to the high faradaic pseudocapacitance of NiMn-LDH, the introduction of PC, and the 3D porous structure of LDH/PC-1 composites. The introduction of PC hinders serious agglomeration of LDH and further accelerates ions transport. The encouraging results indicate that these materials are one of the most potential candidates for energy storage devices.

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Section: Resultssupporting

confidence: 89%

Polyhedral‐Like NiMn‐Layered Double Hydroxide/Porous Carbon as Electrode for Enhanced Electrochemical Performance Supercapacitors

Liu

et al. 2017

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148

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“…The shape of the cyclic voltammograms is nearly preserved when increasing sweep rates, indicating easier diffusion of OH − ions into the hydroxide films. This is probably due to characteristics of layered hydroxides, favoring the diffusion of ions34. For each film studied, the evolution of the cathodic peak current densities vs. the square root of the sweep rate are showed in Figure S2f.…”

Section: Resultsmentioning

confidence: 98%

Layered Ni(OH)2-Co(OH)2 films prepared by electrodeposition as charge storage electrodes for hybrid supercapacitors

Nguyen¹,

Boudard²,

Carmezim³

et al. 2017

Sci Rep

134

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Consecutive layers of Ni(OH)2 and Co(OH)2 were electrodeposited on stainless steel current collectors for preparing charge storage electrodes of high specific capacity with potential application in hybrid supercapacitors. Different electrodes were prepared consisting on films of Ni(OH)2, Co(OH)2, Ni1/2Co1/2(OH)2 and layered films of Ni(OH)2 on Co(OH)2 and Co(OH)2 on Ni(OH)2 to highlight the advantages of the new architecture. The microscopy studies revealed the formation of nanosheets in the Co(OH)2 films and of particles agglomerates in the Ni(OH)2 films. Important morphological changes were observed in the double hydroxides films and layered films. Film growth by electrodeposition was governed by instantaneous nucleation mechanism. The new architecture composed of Ni(OH)2 on Co(OH)2 displayed a redox response characterized by the presence of two peaks in the cyclic voltammograms, arising from redox reactions of the metallic species present in the layered film. These electrodes revealed a specific capacity of 762 C g−1 at the specific current of 1 A g−1. The hybrid cell using Ni(OH)2 on Co(OH)2 as positive electrode and carbon nanofoam paper as negative electrode display specific energies of 101.3 W h g−1 and 37.8 W h g−1 at specific powers of 0.2 W g−1 and 2.45 W g−1, respectively.

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“…into 2D nanosheets offer al arge specific surfacea rea, ah igh amount of active sites, and as hortened diffusion distance that helps ions to quicklyt ransfer from the electrolyte to the surface of the active material due to the ultrathin thickness of the nanosheets; [19] 2) tunable metal-cation compositions in the LDH hostl ayers, such as by Ni 2 + ,C o 2 + , or Mn 2 + enable multiple redox states to greatlyi mprovet he capacitive performance; [20] and 3) LDHs exhibit an excellent anion-exchange capability because the interlayer spacing can be adjusted by intercalating variousi norganic and organic anions. Resulting from the combination of thesea dvantages, the large interlayer spacingf acilitates the rapid diffusion of ions from the active materialt ot he surface, and thus, significantly improving the charging/discharginge fficiency.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Two‐Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors

et al. 2020

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High‐performance supercapacitors have attracted great attention due to their high power, fast charging/discharging, long lifetime, and high safety. However, the generally low energy density and overall device performance of supercapacitors limit their applications. In recent years, the design of rational electrode materials has proven to be an effective pathway to improve the capacitive performances of supercapacitors. Layered double hydroxides (LDHs), have shown great potential in new‐generation supercapacitors, due to their unique two‐dimensional layered structures with a high surface area and tunable composition of the host layers and intercalation species. Herein, recent progress in LDH‐based, LDH‐derived, and composite‐type electrode materials targeted for applications in supercapacitors, by tuning the chemical/metal composition, growth morphology, architectures, and device integration, is reviewed. The complicated relationships between the composition, morphology, structure, and capacitive performance are presented. A brief projection is given for the challenges and perspectives of LDHs for energy research.

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Nickel-Manganese Layered Double Hydroxide Nanosheets Supported on Nickel Foam for High-performance Supercapacitor Electrode Materials

Cited by 212 publications

References 41 publications

Polyhedral‐Like NiMn‐Layered Double Hydroxide/Porous Carbon as Electrode for Enhanced Electrochemical Performance Supercapacitors

Polyhedral‐Like NiMn‐Layered Double Hydroxide/Porous Carbon as Electrode for Enhanced Electrochemical Performance Supercapacitors

Layered Ni(OH)2-Co(OH)2 films prepared by electrodeposition as charge storage electrodes for hybrid supercapacitors

Recent Progress in Two‐Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors

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