High-frequency supercapacitors based on carbonized melamine foam as energy storage devices for triboelectric nanogenerators

Zhao, Man; Nie, Jinhui; Li, Hu; Xia, Mengyang; Li, Mingyang; Zhang, Zailei; Liang, Xiaoqiang; Qi, Ruijie; Wang, Zhong Lin; Lu, Xianmao

doi:10.1016/j.nanoen.2018.11.016

Cited by 57 publications

(36 citation statements)

References 48 publications

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“…[10,19,35] Indeed, the slope calculated for the linear fit of the datapoints between 10 and 2000 V s −1 was 0.89 ( Figure 3F), indicating a predominant surface capacitive process rather than diffusion process. [15,38] Moreover, the linearity of current density/scan rate recorded for the Ni/ Ru/RuO 2 SC apparent up to the significantly high scan rate of 2000 V s −1 (Figure 3F) outperforms varied previously reported SC devices, such as graphene-carbon nanotube carpet SCs, [10] RuO 2 microsupercapacitors (50 V s −1 ), [30] SCs based upon single-multiwall nanotube film, [35] carbonized melamine foam SCs, [39] and plasma reduced graphene oxide SCs. [40] Notably, the Au/Ru/RuO 2 device exhibited a linear dependence only up to 500 V s −1 (Figure 3F, orange circles) accounting for greater resistance and consistent with the dramatically less pronounced capacitive properties of the gold-based devices compared to the devices employing the nickel substrates ( Figure 3A-E).…”

Section: Electrochemical Properties Of Ni/ru/ruo 2 Supercapacitorssupporting

confidence: 72%

“…The decrease in the capacitance is more moderate than previously reported SCs, in which diffusion barriers becomes more significant at lower frequencies. [34,39] Furthermore, in the high frequency region, enhanced capacitance was maintained even at 10 4 Hz. These results underscore the advantages of the nanostructure features of the Ru/RuO 2 layers for capacitance retention at high frequencies.…”

Section: Electrochemical Properties Of Ni/ru/ruo 2 Supercapacitorsmentioning

confidence: 89%

“…[35,37] Indeed, the volumetric power densities reported here exceed the values reported in the SC devices based on carbon materials. [10,34,37,39,48]…”

Section: Electrochemical Properties Of Ni/ru/ruo 2 Supercapacitorsmentioning

confidence: 99%

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Nanostructured Nickel/Ruthenium/Ruthenium‐Oxide Supercapacitor Displaying Exceptional High Frequency Response

Morag

Maman

Froumin

et al. 2019

Adv Elect Materials

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The lower performance of pseudocapacitive supercapacitors in high‐frequency applications such as alternating current (AC) line filtering has been ascribed to presumed slow kinetics of redox processes compared to ion diffusion in electric double layer capacitors. A nickel‐deposited ruthenium/ruthenium‐oxide symmetric supercapacitor exhibiting remarkable electrochemical properties, particularly very high frequency response (>1 kHz) is developed. The electrodes are prepared via a simple process consisting of electrochemical reduction of ruthenium chloride on commercially available nickel foil as the current collector. A symmetric supercapacitor comprising nickel/ruthenium/ruthenium‐oxide electrodes and a polystyrene‐based thin spacer exhibits particularly fast scan rates, high power density of 1500 mW cm−2 (88 kW cm−3) with a maximum energy density of 0.58 µWh cm−2 (34 mWh cm−3), and excellent capacitance retention. Notably, supercapacitors prepared by the same synthetic method albeit using conventional gold substrate instead of nickel exhibit significantly lower frequency response. The exceptional electrochemical properties of the nickel/ruthenium/ruthenium‐oxide supercapacitor and simple electrode synthesis point to promising applicability in AC line filtering and power conditioning. In a broader context, this work demonstrates that, contrary to the widely held presumption, the kinetics of redox reactions at the active layers of pseudocapacitors may not be the primary barriers to high‐frequency applications.

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Section: Electrochemical Properties Of Ni/ru/ruo 2 Supercapacitorssupporting

confidence: 72%

Section: Electrochemical Properties Of Ni/ru/ruo 2 Supercapacitorsmentioning

confidence: 89%

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Nanostructured Nickel/Ruthenium/Ruthenium‐Oxide Supercapacitor Displaying Exceptional High Frequency Response

Morag

Maman

Froumin

et al. 2019

Adv Elect Materials

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“…Efficient and inexpensive energy storage devices are urgently needed to support widespread application of renewable energy and smart grid development . Recently, as a new type of energy storage device between traditional capacitor and battery, supercapacitor has been applied in various fields due to its high power density, long cycle life, and friendly environment . Based on the storage mechanism, supercapacitor generally involves the electrical double‐layer capacitor and pseudocapacitor .…”

Section: Introductionmentioning

confidence: 99%

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Wang

et al. 2019

Int J Energy Res

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Summary Polyaniline (PANI), a low‐cost conducting polymer with an excellent specific capacitance and a high conductivity, is a promising organic material served for supercapacitor. However, it tends to curl and swell after constant charge and discharge, resulting in poor cycle stability. In this work, we employed the interfacial polymerization route to construct an aniline‐grafting graphene oxide/PANI (GO‐ANI/PANI) composite. The as‐prepared GO‐ANI/PANI composite shows a high specific capacitance (160.5 F g‐1) at 0.5 A g‐1 under the wide potential range from 0.0 to 1.0 V. Importantly, at a high current density (10 A g‐1), the capacitance retains 86% after 3000 cycles due to the enhanced interaction between GO and PANI and good conductive network. It has been demonstrated that the GO‐ANI/PANI composite has a higher specific capacitance and better stability compared with GO/PANI obtained by common method. This study implies that the composite electrode could be a competitive candidate for high‐performance supercapacitor.

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“…[10] Motivated by these studies, research on SCs which can operate at high frequency/scan rates have mostly focused on devices based upon electric double-layer capacitor (EDLC) mechanisms. Materials such as onion-like carbon, [11] mesoporous carbon, [12][13][14] covalent organic frameworks, [15] and exfoliated graphene, [16] have been promoted as candidates for highfrequency EDLC-based supercapacitors. Yet, low material densities and reduced specific capacitance generally require high mass loading in such devices in order to achieve high capacitance.…”

Section: Introductionmentioning

confidence: 99%

Nickel Alloying Significantly Enhances the Power Density of Ruthenium‐Based Supercapacitors

Morag

Shauloff

Maman

et al. 2020

Batteries & Supercaps

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Supercapacitors operating at high frequencies while exhibiting high capacitance have been challenging to fabricate due to high resistance and constrained ion diffusion in the active layers. To overcome these limitations, thin layers of pseudocapacitive materials with high theoretical capacitance can be used. Still, construction of such electrodes exhibiting effective ion diffusion, sufficient electrochemically‐active surface area, and high conductivity has encountered significant difficulties. Here, we integrated nickel atoms into a ruthenium layer through a simple electrochemical deposition method, producing a thin electrode comprising hexagonal nickel ruthenium (NiRu) nanodendrites. Further oxidation of the NiRu alloy generated a thin surface layer of pseudocapacitive RuO2 exhibiting significant areal capacitance. A symmetric device from two NiRu/RuO2 electrodes displayed an energy density of 0.714 μWh cm−2 with a remarkable power density of 1500 mW cm−2, ∼250 W cm−3 for a full device. The NiRu/RuO2 supercapacitor outperforms commercial capacitors in both energy and power densities and may replace bulky capacitors in microelectronic devices.

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High-frequency supercapacitors based on carbonized melamine foam as energy storage devices for triboelectric nanogenerators

Cited by 57 publications

References 48 publications

Nanostructured Nickel/Ruthenium/Ruthenium‐Oxide Supercapacitor Displaying Exceptional High Frequency Response

Nanostructured Nickel/Ruthenium/Ruthenium‐Oxide Supercapacitor Displaying Exceptional High Frequency Response

Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance

Nickel Alloying Significantly Enhances the Power Density of Ruthenium‐Based Supercapacitors

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