Synthesis of cobalt silicate nanosheets with mesoporous structure and high surface area as the promising electrode for high-performing hybrid supercapacitor

Dong, Xueliang; Yu, Yuting; Zhang, Yifu; Xu, Zichen; Jiang, Hanmei; Meng, Changgong; Huang, Chi

doi:10.1016/j.electacta.2021.138225

Cited by 34 publications

(14 citation statements)

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“…5 FTIR spectra of calcined PSB NFs measured in the range 4000-400 cm-1; transmittance showed in % in the range 0-100%. photocatalysis, 65 electrochemical water splitting, 66 supercapacitors, 67 adsorption of heavy metals, 68 drug delivery, 69 etc.…”

Section: Resultsmentioning

confidence: 99%

“…Nitrogen adsorption–desorption measurements were carried out to investigate the textural properties of Fe 2 TiO 5 nanofibers. Mesoporous materials with a high specific surface area are of great interest because of their applications in catalysis, 64 photocatalysis, 65 electrochemical water splitting, 66 supercapacitors, 67 adsorption of heavy metals, 68 drug delivery, 69 etc. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers

et al. 2021

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers

et al. 2021

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“…The small diameter and a specific area of 114 m 2 g −1 of mesoporous cobalt silicate nanosheets can provide ample reactive spots where the electrochemical reaction take place and this can improve the mass transfer and attain good performance in electrochemical process. They were initially manufactured by the sacrificial template stÖber SiO 2 spheres [243]. The specific capacitance of Co 2 SiO 4 nano sheets is 638 F/g at 0.5 A/g current density and they exhibited 82 percentage capacitance stability after 10,000 cycles.…”

Section: Mesoporous Cobalt Silicate Nanosheets (Co 2 Sio 4 Nss)mentioning

confidence: 99%

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

et al. 2022

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For hybrid electric vehicles, supercapacitors are an attractive technology which, when used in conjunction with the batteries as a hybrid system, could solve the shortcomings of the battery. Supercapacitors would allow hybrid electric vehicles to achieve high efficiency and better power control. Supercapacitors possess very good power density. Besides this, their charge-discharge cycling stability and comparatively reasonable cost make them an incredible energy-storing device. The manufacturing strategy and the major parts like electrodes, current collector, binder, separator, and electrolyte define the performance of a supercapacitor. Among these, electrode materials play an important role when it comes to the performance of supercapacitors. They resolve the charge storage in the device and thus decide the capacitance. Porous carbon, conductive polymers, metal hydroxide, and metal oxides, which are some of the usual materials used for the electrodes in the supercapacitors, have some limits when it comes to energy density and stability. Major research in supercapacitors has focused on the design of stable, highly efficient electrodes with low cost. In this review, the most recent electrode materials used in supercapacitors are discussed. The challenges, current progress, and future development of supercapacitors are discussed as well. This study clearly shows that the performance of supercapacitors has increased considerably over the years and this has made them a promising alternative in the energy sector.

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“…Recently, transition metal silicates (TMSs) used for energy conversion and storage have been entering our consideration and arousing widespread attention due to their great abundance, low cost, and brilliant electrochemical properties. − For example, Mai et al prepared several TMSs and their composites for Li-ion batteries (LIBs). − Jiang et al synthesized nickel–cobalt silicates showing high performance for the electrocatalytic oxygen evolution reaction (OER). , Recent researchers have proved that TMSs-based materials have shown great potential as the electrode materials for SCs. For instance, Cheng and his co-workers prepared Co 2 SiO 4 -based materials using Co-based precursors, and they displayed enhanced electrochemical properties. − Some TMSs-related materials originating from Stöber SiO 2 were also developed for SCs. − Although the preparation and improvement of the electrochemical properties of TMSs for SCs have shown much progress, there are still some issues to be addressed: (1) Owing to their poor conductivity, the experimental capacitance achieved is less desirable than the theoretical value. (2) The study on the TMSs is mainly focused on Ni/Co/Mn silicates, but other silicates are rarely investigated .…”

Section: Introductionmentioning

confidence: 99%

Bamboo Leaves as Sustainable Sources for the Preparation of Amorphous Carbon/Iron Silicate Anode and Nickel–Cobalt Silicate Cathode Materials for Hybrid Supercapacitors

Zhang

Wang

Chen

et al. 2021

ACS Appl. Energy Mater.

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The design and discovery of sustainable electrode materials with outstanding capacitance for energy storage from environmentally friendly biomass as the raw material are a task filled with challenges and opportunities. In this work, we demonstrate that the hybrid supercapacitor (HSC) device is assembled by metal silicates for the first time. The amorphous carbon/iron silicate (C/Fe 24 Si 4 O 43 (OH) 2 , denoted as C/FeSi) anode and cobalt−nickel silicate (Co x Ni 2−x SiO 4 , denoted as CoNiSi) cathode materials are derived naturally from bamboo leaves (BLs) for the HSC device. The BLs-derived C/ FeSi displays FeSi nanoparticles in situ growth on 3D hierarchical porous carbon, leading to high specific surface area, outstanding specific capacitance of 421 F•g −1 at 0.5 A•g −1 , and prominent cycle performance of 86% retention after 10 000 cycles. The CoNiSi presents a 3D petal-like sheet structure and exhibits excellent electrochemical properties with 368 F•g −1 (184 C•g −1 ) at 0.5 A•g −1 and 89% retention after 10 000 cycles. The fabricated quasi-solid-state C/FeSi// CoNiSi HSC device delivers a remarkable areal specific capacitance of 492 mF•cm −2 (96 F•g −1 ) at 4 mA•cm −2 and a brilliant energy density of 3.35 Wh•m −2 (6.55 Wh•kg −1 ) at 3.5 W•m −2 (68.36 W•kg −1 ), which are preferable to most of state-of-the-art silicates-based SCs. The series-wound C/FeSi//CoNiSi HSC device can light up the red LED for over 2 min. These strengths prove that both C/ FeSi and CoNiSi architectures derived from BLs can be regarded as hopeful and first-class electrode materials for SCs with excellent performance. This work not only supplies a potential thread for the construction of metal silicate architectures to recycle biomass rich in silicon to synthesize useful materials but also demonstrates that the high-performance HSC device can be achieved by using the biomass-derived silicates.

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Synthesis of cobalt silicate nanosheets with mesoporous structure and high surface area as the promising electrode for high-performing hybrid supercapacitor

Cited by 34 publications

References 58 publications

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Bamboo Leaves as Sustainable Sources for the Preparation of Amorphous Carbon/Iron Silicate Anode and Nickel–Cobalt Silicate Cathode Materials for Hybrid Supercapacitors

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Synthesis of cobalt silicate nanosheets with mesoporous structure and high surface area as the promising electrode for high-performing hybrid supercapacitor

Cited by 34 publications

References 58 publications

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe2TiO5 nanofibers

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe2TiO5 nanofibers

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

Bamboo Leaves as Sustainable Sources for the Preparation of Amorphous Carbon/Iron Silicate Anode and Nickel–Cobalt Silicate Cathode Materials for Hybrid Supercapacitors

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Product

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Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe₂TiO₅ nanofibers