Selective combination of highly porous hollow structured bimetallic spinel oxides with improved redox chemistry for electrochemical hybrid capacitor

Hussain, Sk. Khaja; Nagaraju, G.; Sekhar, S. Chandra; Yu, Jae Su

doi:10.1016/j.ensm.2020.01.024

Cited by 58 publications

(31 citation statements)

References 68 publications

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“…Various porous hollow/core–shell structures of the spinel oxides have been synthesized for the electrochemical hybrid capacitors. [ 116 ] These hollow/core–shell structures can be prepared via a simple and ecofriendly wet chemical method. Yu et al., prepared the highly porous structured CoMn 2 O 4 hollow nanospheres and hierarchical porous MnCo 2 O 4 nanoflowers with controlled morphologies.…”

Section: Conventional Electrode Materialsmentioning

confidence: 99%

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Benzigar

Dasireddy²,

Guan

et al. 2020

Adv Funct Materials

107

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The progressive size reduction of electronic components is experiencing bottlenecks in shrinking charge storage devices like batteries and supercapacitors, limiting their development into wearable and flexible zero-pollution technologies. The inherent long cycle life, rapid charge-discharge patterns, and power density of supercapacitors rank them superior over other energy storage devices. In the modern market of zero-pollution energy devices, currently the lightweight formula and shape adaptability are trending to meet the current requirement of wearables. Carbon nanomaterials have the potential to meet this demand, as they are the core of active electrode materials for supercapacitors and texturally tailored to demonstrate flexible and stretchable properties. With this perspective, the latest progress in novel materials from conventional carbons to recently developed and emerging nanomaterials toward lightweight stretchable active compounds for flexi-wearable supercapacitors is presented. In addition, the limitations and challenges in realizing wearable energy storage systems and integrating the future of nanomaterials for efficient wearable technology are provided. Moreover, future perspectives on economically viable materials for wearables are also discussed, which could motivate researchers to pursue fabrication of cheap and efficient flexible nanomaterials for energy storage and pave the way for enabling a widerange of material-based applications.

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Section: Conventional Electrode Materialsmentioning

confidence: 99%

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Benzigar

Dasireddy²,

Guan

et al. 2020

Adv Funct Materials

107

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“…[24][25][26] Particularly, the 3D hollow-based electrode materials showed considerable benefits in the electrochemical energy storage field in comparison with their solid counterparts. [27][28][29] These benefits are ascribed to the following aspects: the high surface area of porous shields expand the contact area between electrolyte/electrode for easy and more ion diffusion at the interface, and hence offer more redox active channels for better charge storage. Moreover, porous and micro/nano-sized morphologies provide rapid charge transportation and highway to advance electrochemical kinetics for stable rate performance.…”

Section: Introductionmentioning

confidence: 99%

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Mule

Ramulu

2022

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much attention because of their advantages of quick charge/discharge property, superior power density, and long-lasting and eco-friendly feature. [3,4] However, active materials which consist of inherent synergistic properties should be chosen to improve the capacity performance in the SCs. Typically, the active materials (Faradaic redox nature) are constructed with transition metal oxides/hydroxides and chalcogenides. [5] The fabricated electrodes with transition metal oxides/hydroxides show great redox properties and possess high theoretical capacitance values, but these electrodes often reveal low rate performance and poor cycling capability. [6] Hence, it urges engineer to develop innovative composite materials which can offer synergistic characteristics and enriched electrochemical properties. This is more favorable for the development of highperformance SCs. [7,8] Recently, transition metal compositions (Ni, Fe, Cu, Mn, Co, etc.) consisting of sulfides, [9] selenides, [10] and phosphides [11] exhibit excellent electrochemical properties. These materials are promising substitutes to typical hydroxides/oxides owing to the plenty of active channels, robust structural capability, and better electrical conductivity. The energy storage capability of SCs is mainly influenced by the material composition of electrodes. Based on the previously published literature, the SCs with multi-metal chalcogenides show higher charge storage performance compared to single metal chalcogenides. Moreover, it is highly important to mention that the compositional metal chalcogenides allow inherent electrochemical sites and enriched redox properties due to various metal ion species during electrochemical analysis. These features are more favorable to improve electrochemical performance and cycling lifetime. [12][13][14] Especially, the substitute of hydroxide/oxides with sulfur provides flexibility to material structures owing to its low electronegativity property. Consequently, morphological structures of materials alleviate changes occurring in its morphology during the electrochemical analysis. [9,15] Therefore, evolving the combined metal chalcogenide electrodes with advanced characteristics such as good conductivity andThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.202105185.

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“…The CV, GCD, and EIS (frequency range: 1 mHz to 100 kHz with an applied potential of 5 mV) analyses were performed at RT. The specific capacity ( Q sc , mA h g −1 ) of the prepared electrodes were estimated by the following Equation () [ 46,47 ]

\begin{matrix} Q_{sc} = \frac{I \times Δ t}{m \times 3.6} (mA normalh g^{- 1}) \end{matrix}

where Q sc is the specific capacity (mA h g −1 ), I is the applied current (A), Δ t is the discharge time (s), and m is the mass of coated material (g), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The CV, GCD, and EIS (frequency range: 1 mHz to 100 kHz with an applied potential of 5 mV) analyses were performed at RT. The specific capacity (Q sc , mA h g −1 ) of the prepared electrodes were estimated by the following Equation (12) [46,47] 3.6 mA h g sc 1…”

Section: Synthesis Of Mixed Phases Of Mohite-cu 2 Sns 3 @Orthorhombic...mentioning

confidence: 99%

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

Karuppaiah

Sakthivel

Asaithambi

et al. 2022

Adv Materials Inter

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In this work, self‐charging pouch‐type hybrid supercapacitor (HSCs) is fabricated by extrinsic integration of wind and solar energy power systems. Initially, the synthesized mesoporous 3D‐rhombohedral Mn2O3 shows a specific capacity of 37.61 mA h g−1 in KOH plus redox additives electrolyte. Further, the oxygen vacancy of Mn2O3 is tuned by fast‐reduction (FR) and mild‐reduction (MR) techniques. The rich oxygen vacancy of FR‐Mn2O3 (rich Ov‐Mn2O3) exhibits a specific capacity of 66.64 mA h g−1. On the other hand, the different morphologies of Cu2SnS3@SnS are synthesized by time‐dependent solvothermal technique. The 3D‐microsphere Cu2SnS3@SnS shows higher electrochemical performance than the others. In order to further improve the electrochemical performance, the heterostructure of rich Ov‐Mn2O3@Cu2SnS3@SnS composite is prepared that provides a maximum specific capacity of 126.07 mA h g−1 at 8 mA cm−2 and rate capability of 66.09% with retention of 93.89% after 10 000 cycles. This is ascribing to high electrical/ionic conductivity, larger faradaic reactions, lower interfacial resistance, and synergistic effect. Then, the fabricated pouch‐type HSC delivers a maximum specific energy density of 47.97 Wh kg−1 and power density of 5120 W kg−1. Finally, the pouch HSCs are employed for practical self‐charging applications.

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Selective combination of highly porous hollow structured bimetallic spinel oxides with improved redox chemistry for electrochemical hybrid capacitor

Cited by 58 publications

References 68 publications

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

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Selective combination of highly porous hollow structured bimetallic spinel oxides with improved redox chemistry for electrochemical hybrid capacitor

Cited by 58 publications

References 68 publications

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Advances on Emerging Materials for Flexible Supercapacitors: Current Trends and Beyond

Prussian‐Blue Analogue‐Derived Hollow Structured Co3S4/CuS2/NiS2 Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Heterostructured Ov‐Mn2O3@Cu2SnS3@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors

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Product

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Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Heterostructured O_v‐Mn₂O₃@Cu₂SnS₃@SnS Composite as Battery‐Type Cathode Material for Extrinsic Self‐Charging Hybrid Supercapacitors