Stacking fault disorder induced by Mn doping in Ni(OH)2 for supercapacitor electrodes

Zhang, Zhiguo; Huo, Hua; Wang, Liguang; Lou, Shuaifeng; Xiang, Lizhi; Xie, Bingxing; Wang, Qun; Du, Chunyu; Wang, Jiajun; Yin, Geping

doi:10.1016/j.cej.2021.128617

Cited by 115 publications

(40 citation statements)

References 54 publications

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An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Jiang

et al. 2021

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SCs suitable for many different occasions. [1][2][3][4][5][6][7] However, the low energy density limits their extensive commercial applications. Based on the above, hybrid supercapacitors (HSCs) also called supercapattery with battery-type positive electrode as the energy source and electric double-layer capacitor negative electrode as the power source have been designed, it combines the dual advantages of high power density of traditional SCs and high energy density of batteries. [7][8][9][10] Further, the electrochemical properties of the HSCs are mainly determined by the battery-type electrode, so selecting suitable electrode materials or optimizing the electrode structure is essential for obtaining high-performance hybrid devices.Transition metal oxides and sulfides have become the most widely studied battery-type electrodes due to their remarkable electrochemical activity and high specific capacity. [11][12][13] For example, Chen et al. reported the self-supported Ni 3 S 2 nanosheet arrays by a two-step method. Benefiting from its unique 3D sheet structure, the electrode shows superb rate capability and energy density. [14] Kim et al. designed the independent electrode of NiMo 2 S 4 using the successive ionic layer adsorption and reaction (SILAR) method, which also showed high reversible specific capacity. [15] Although some progress has been made in the research of battery-type electrodes, the inherent physical and chemical properties of the single electrode materials may limit the further development. In order to achieve higher electrochemical performance, complex and stable electrode structures are required to be constructed.In the previous work, the first-principles calculations show that amorphous oxides (such as MnO 2 , [16] ) can produce lots of unsaturated suspension bonds, which makes them have a broad application prospect in the field of energy storage. [18][19][20] Liu et al. proposed amorphous manganese oxide as the pseudocapacitive electrode, which proved to possess excellent rate capability and high cycle stability. [21] This may be due to the fact that the loose arrangement of atoms and ions is more conducive to rapid ion transport of the active materials in the bulk of oxides. Sun et al. successfully synthesized MoO 3 by electrochemical deposition technique and pointed out that the disordered structure is likely to release the structural stress caused by the repeated ion deintercalation/intercalation behavior, thus Hybrid supercapacitors (HSCs), also called supercapattery, which can substitute for low power density batteries have attracted extensive interest. However, when HSCs comes to commercial applications, there is still space for improvement in energy density. It seems that designing of electrode with high capacity is an effective measure. Herein, amorphous-crystalline MoO 3 -Ni 3 S 2 /NF-0.5 nanosheet arrays are developed as battery-type electrodes. Specifically, the sheet-like structure of crystalline Ni 3 S 2 can achieve rich structural nanocrystallization, improving the redox reacti...

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An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Jiang

et al. 2021

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“…The assembled CuBr 2 @NCC-LDH/CF//AC ASC device has a high energy density of 118 Wh kg −1 at a power density of 1013 W kg −1 , which is significantly higher than those of Ni-, Ce-, or Co-based supercapacitors that have been reported. 20,34,55,59,63 More importantly, as revealed in Figure 6g, the assembled CuBr 2 @ NCC-LDH/CF//AC ASC device achieved a capacity retention rate of 86.7% after 5000 cycles at 5 A g −1 current density, indicating an outstanding capacitance stability. In addition, the CV curve area in the inset shows a small change after 5000 cycles, further confirming the excellent cycling performance of the assembled device.…”

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confidence: 89%

Ternary NiCeCo-Layered Double Hydroxides Grown on CuBr₂@ZIF-67 Nanowire Arrays for High-Performance Supercapacitors

Zhang

Jin

et al. 2022

ACS Appl. Mater. Interfaces

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Ternary layered double-hydroxide-based active compounds are regarded as ideal electrode materials for supercapacitors because of their unique structural characteristics and excellent electrochemical properties. Herein, an NiCeCo-layered double hydroxide with a core−shell structure grown on copper bromide nanowire arrays (CuBr 2 @NCC-LDH/CF) has been synthesized through a hydrothermal strategy and calcination process and utilized to fabricate a binder-free electrode. Due to the unique top-tangled structure and the complex assembly of different active components, the prepared hierarchical CuBr 2 @NCC-LDH/CF binder-free electrode exhibits an outstanding electrochemical performance, including a remarkable areal capacitance of 5460 mF cm −2 at 2 mA cm −2 and a capacitance retention of 88% at 50 mA cm −2 as well as a low internal resistance of 0.163 Ω. Moreover, an all-solid-state asymmetric supercapacitor (ASC) installed with CuBr 2 @NCC-LDH/CF and activated carbon electrodes shows a high energy density of 118 Wh kg −1 at a power density of 1013 W kg −1 . Three assembled ASCs connected in series can operate a multifunctional display for over three and a half hours. Therefore, this innovative work provides new inspiration for the preparation of electrode materials for supercapacitors.

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“…Furthermore, the highest capacitance of CPCC@CuO@Mn(OH) 2 can reach 8140 mF cm –2 (mean: 1879.9 F g –1 ) under 0.5 mA cm –2 (amount to 115.5 mA g –1 ). The maximum capacitance, exhibited in Table S1, is overwhelming high in comparison to the foregone research maximum value of Mn(OH) 2 specimens, even most Mn-based materials, ,− proving that the CPCC@CuO@Mn(OH) 2 material has excellent electrochemical performance.…”

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confidence: 97%

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

Gong

Shi

et al. 2021

ACS Sustainable Chem. Eng.

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Flexible asymmetric supercapacitor (FASC) systems are expected to exhibit not only excellent energy storage properties and safety but also satisfactory flexibility and robust integration. However, tremendous issues such as low capacitance, narrow voltage window, and poor mechanical properties still exist. In this paper, a novel kind of 3D lamellar Mn(OH) 2 nanosheets on Cu-plated carbon cloth with a core-shell integrated framework (CPCC@CuO@Mn(OH) 2 ) is fabricated to obtain the flexible material in the FASC. In this unique CPCC@CuO@Mn(OH) 2 electrode material, the high theoretical specific capacity of CuO and Mn(OH) 2 brings superior energy storage properties. Meanwhile, as the shell part, the deposited Mn(OH) 2 layer and coated CuO layer work as both capacity contributors and substrate protectors, simultaneously maintaining the high capacitance and satisfactory flexibility of the electrodes. Therefore, the capacitance successfully achieves around 8140 mF cm −2 under 0.5 mA cm −2 . Significantly, the assembled FASC (named as CPCC@CuO@Mn(OH) 2 //CC@AC) achieves a working voltage of up to 2.4 V. In the case of a high-power density close to 34.31 mW cm −3 , its energy density reaches around 6.29 mW h cm −3 . Moreover, the capacity holds 88.9% even after 10,000 cycles, showing its great application potential in the field of wearable electronics.

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Stacking fault disorder induced by Mn doping in Ni(OH)2 for supercapacitor electrodes

Cited by 115 publications

References 54 publications

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Ternary NiCeCo-Layered Double Hydroxides Grown on CuBr₂@ZIF-67 Nanowire Arrays for High-Performance Supercapacitors

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

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Stacking fault disorder induced by Mn doping in Ni(OH)2 for supercapacitor electrodes

Cited by 115 publications

References 54 publications

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

An Amorphous–Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery

Ternary NiCeCo-Layered Double Hydroxides Grown on CuBr2@ZIF-67 Nanowire Arrays for High-Performance Supercapacitors

In Situ Growth of 3D Lamellar Mn(OH)2 on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

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Ternary NiCeCo-Layered Double Hydroxides Grown on CuBr₂@ZIF-67 Nanowire Arrays for High-Performance Supercapacitors

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V