2012
DOI: 10.1039/c2nr31590d
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Abstract: Conducting nanowires are of particular interest in energy-related research on devices such as supercapacitors, batteries, water splitting electrodes and solar cells. Their direct electrode/current collector contact and highly conductive 1D structure enable conducting nanowires to provide ultrafast charge transportation. In this paper, we report the facile synthesis of nickel cobalt layered double hydroxides (LDHs) on conducting Zn(2)SnO(4) (ZTO) and the application of this material to a supercapacitor. This st… Show more

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Cited by 403 publications
(182 citation statements)
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References 47 publications
(49 reference statements)
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“…Figure 6d shows the Ragone plot relating the energy density to the power density of ASC devices. Notably, the energy density of ASC devices is comparable or superior than that of Ni‐Co sulfide nanowire//activated carbon cells (25 Wh kg −1 at 3.57 kW kg −1 ),38 carbon/CoNi 3 O 4 //activated carbon cells (19.2 Wh kg −1 at 13 kW kg −1 ),39 graphene–nickel cobaltite nanocomposite//activated carbon (7.6 Wh kg −1 at 5.6 kW kg −1 ),40 Ni–Co oxide//activated carbon (7.4 Wh kg −1 at 1.9 kW kg −1 ),41 Co x Ni 1− x O/reduced G–O//reduced G–O cells (28 Wh kg −1 at 3614 W kg −1 ),42 Ni–Co hydroxides/Zn 2 SnO 4 //activated carbon (AC) devices (23.7 Wh kg −1 at 284 W kg −1 ),43 Ni–Co–S/cloth//GF (60 Wh kg −1 at 1.8 kW kg −1 ),44 and CoNi 2 S 4 nanosheet arrays on NF//AC devices (33.9 Wh kg −1 at 409 W kg −1 ) 45. The electrochemical properties of nickel cobalt sulfide‐based ASCs are generalized in Table S2 (Supporting Information).…”
Section: Resultsmentioning
confidence: 99%
“…Figure 6d shows the Ragone plot relating the energy density to the power density of ASC devices. Notably, the energy density of ASC devices is comparable or superior than that of Ni‐Co sulfide nanowire//activated carbon cells (25 Wh kg −1 at 3.57 kW kg −1 ),38 carbon/CoNi 3 O 4 //activated carbon cells (19.2 Wh kg −1 at 13 kW kg −1 ),39 graphene–nickel cobaltite nanocomposite//activated carbon (7.6 Wh kg −1 at 5.6 kW kg −1 ),40 Ni–Co oxide//activated carbon (7.4 Wh kg −1 at 1.9 kW kg −1 ),41 Co x Ni 1− x O/reduced G–O//reduced G–O cells (28 Wh kg −1 at 3614 W kg −1 ),42 Ni–Co hydroxides/Zn 2 SnO 4 //activated carbon (AC) devices (23.7 Wh kg −1 at 284 W kg −1 ),43 Ni–Co–S/cloth//GF (60 Wh kg −1 at 1.8 kW kg −1 ),44 and CoNi 2 S 4 nanosheet arrays on NF//AC devices (33.9 Wh kg −1 at 409 W kg −1 ) 45. The electrochemical properties of nickel cobalt sulfide‐based ASCs are generalized in Table S2 (Supporting Information).…”
Section: Resultsmentioning
confidence: 99%
“…1,2,5 Recently, heterogeneous nanostructured materials have emerged as promising systems for electrochemical energy storage, due to the combined benefits of reduced inherent structure size of the bulk materials (e.g., enhanced specific surface area and reduced ion diffusion length) and synergy of the properties of the individual components (e.g., improved electron transport efficiency and mechanical stability). 6,7 Hybrid nanostructures have been created by controlled assembly of different capacitive materials, such as conducting polymer/carbon, [8][9][10][11][12][13][14] conducting polymer/metal oxide, 15 metal oxide/carbon, [16][17][18] metal oxide/metal oxide, 19 and metal oxide/metal, [20][21][22] and have been reported to exhibit extremely high capacitances as well as improved energy and power densities. When constructing these heterogeneous systems, the ability to manipulate their composition and nanoscale architecture, and to assemble the individual components in a way that does not impair their respective advantageous features (e.g., preservation of intrinsically high conductivity of the conducting component), plays a key role in the optimization of their electrocapacitive performance.…”
Section: Introductionmentioning
confidence: 99%
“…When constructing these heterogeneous systems, the ability to manipulate their composition and nanoscale architecture, and to assemble the individual components in a way that does not impair their respective advantageous features (e.g., preservation of intrinsically high conductivity of the conducting component), plays a key role in the optimization of their electrocapacitive performance. [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] Low-cost, high-throughput, and readily scalable solution processes have been exploited to deposit various nanomaterials on appropriate substrates for large-scale applications, including solar cells, 23,24 thin-film transistors, [25][26][27] lithium-ion batteries, 28,29 and single-component supercapacitor devices. 29,30 However, it is very difficult to employ solution processes to construct heterogeneous nanomaterials based on well-studied pseudo-capacitive materials (i.e., metal oxides and conducting polymers), especially those with controlled morphology and electrocapacitive properties.…”
Section: Introductionmentioning
confidence: 99%
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“…For example, LDHs were used as additives in polymers [9], as adsorbents for water remediation [18], as precursors for functional materials, applied in the synthesis of pharmaceuticals [19], in photochemistry [20] and electrochemistry [21]. Moreover, LDHs prepared directly and their calcined mixed metal oxide (MMOs) products have been widely used as an actual solid base catalyst, and promising precursors or supports of catalysts in a variety of fields including organic synthesis, adsorption of organic wastes or heavy metals ions, and the decomposition of volatile organic compounds [22].…”
Section: Ldh-based Composite Materialsmentioning
confidence: 99%