Recent progress on porous carbon and its derivatives from plants as advanced electrode materials for supercapacitors

Jiang, Guosai; Senthil, Raja Arumugam; Sun, Yanzhi; Kumar, T. Rajesh; Pan, Junqing

doi:10.1016/j.jpowsour.2021.230886

Cited by 245 publications

(63 citation statements)

References 227 publications

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“…The defects induced from such disordering are typically helpful in improving energy storage capacity. 45,46 On the basis of the XRD and Raman results, we confirmed that CFSPC has more a defective nature in the carbon framework. 47,48 The Brunauer−Emmett−Teller (BET) nitrogen adsorption/ desorption isotherms were measured to determine the specific surface area, and the BJH method was utilized to determine the pore size distribution (PSD) of the CFSPC (Figure 2c,d).…”

Section: Resultssupporting

confidence: 58%

Bioinspired Sustainable Sheetlike Porous Carbon Derived from Cassia fistula Flower Petal as an Electrode for High-Performance Supercapacitors

Ariharan

Kim

2022

Energy Fuels

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Herein, we report the synthesis of porous carbon material derived from the renewable source of Cassia fistula flower petals by a single-step direct-carbonization process. The sheetlike porous carbon (CFSPC) derived from C. fistula flower petals displays an uneven sheetlike morphology, hierarchical porous structure, and a high specific surface area of 556 m2 g–1. It exhibits a high specific capacitance of 324 F g–1 at the current density of 1 A g–1 and long cyclic stability of 95.3% with nearly 100% Coulombic efficiency over around 10 000 charge–discharge cycles in a two-electrode configuration. CFSPC also delivers a maximum specific energy of over 48.2 Wh kg–1 and a specific power of 687 W kg–1. These electrochemical performance results demonstrate that the as-synthesized sheetlike porous carbon derived from readily available greener resources like C. fistula flower petals may serve as promising electrodes for energy storage.

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Section: Resultssupporting

confidence: 58%

Bioinspired Sustainable Sheetlike Porous Carbon Derived from Cassia fistula Flower Petal as an Electrode for High-Performance Supercapacitors

Ariharan

Kim

2022

Energy Fuels

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“…Therefore, developing efficient energy storage systems has become significantly important. Numerous energy storage systems with superior electrochemical performance (long cycle stability and high energy density/power density) have emerged since the first commercialization of rechargeable lithium‐ion batteries in 1990, including sodium‐ion batteries, [ 1–3 ] lithium‐sulfur batteries, [ 4–6 ] aqueous batteries, [ 7,8 ] supercapacitors, [ 9,10 ] and so on. [ 11–16 ] Meanwhile, the batteries often have extremely high energy densities, but they have a short cycle life and safety risks due to severe redox reactions and dendritic complications.…”

Section: Introductionmentioning

confidence: 99%

Zinc‐ion hybrid supercapacitors: Design strategies, challenges, and perspectives

Chen

Zhang

Gao

et al. 2022

Carbon Neutralization

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Zinc‐ion hybrid supercapacitors (ZHSCs) may be the most promising energy storage device alternatives for portable and large‐scale electronic devices in the future, as they combine the benefits of both supercapacitors and zinc‐ion batteries. Even though many surprise outcomes have been accomplished with ZHSCs, the creation of suitable cathode materials and electrolytes, as well as the enhancement of zinc anodes, continue to be the most difficult obstacles in the development of high‐performance ZHSCs. The low capacitance of the cathode material, poor stability, and low utilization rate of the zinc anode seriously affect the electrochemical performance and application of ZHSCs. Furthermore, parasitic processes in aqueous electrolytes, such as the hydrogen and oxygen evolution reactions might result in low‐voltage windows and unsatisfied cycling performance of the ZHSCs. This review provides a concise summary of the most recent developments and energy storage mechanisms in ZHSCs. Meanwhile, the cathode material design strategy (structural engineering, hybrid‐composite design, heteroatom doping, and so on), the zinc anode design strategy (zinc foil improvement, zinc‐free metal composites, and so on), and the structure–activity relationship of the electrochemical performance of ZHSCs are discussed. Additionally, a summary of the impact of modifications in electrolyte composition on the electrochemical performance of ZHSCs is provided. Finally, this review also discusses the future development direction of ZHSCs. It is anticipated that this evaluation will serve as a helpful reference for the creation of high‐performance ZHSCs, which will hasten the development of these devices.

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“…Therefore, an interconnected hierarchically porous framework is generally considered essential for the prepared biochar. Take the supercapacitor as an example, electronic energy is stored in a carbon electrode via two pathways, namely the electric double-layer capacitance and the faradaic pseudo-capacitance [ 14 ]. The presence of numerous reaction sites provided by microporosity enables a high specific capacitance, whereas mesopores can act as ion-migration channels, guaranteeing a high-rate capability.…”

Section: Introductionmentioning

confidence: 99%

Heteroatom-Doped Hierarchically Porous Biochar for Supercapacitor Application and Phenol Pollutant Remediation

Tang

Luo

et al. 2022

Nanomaterials

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Biochars are considered as promising materials in energy storage and environmental remediation because of their unique physicochemical properties and low cost. However, the fabrication of multifunctional biochar materials with a well-developed hierarchical porous structure as well as self-doped functionalities via a facile strategy remains a challenge. Herein, we demonstrate a heteroatom-doped porous biochar, prepared by a hydrothermal pretreatment followed by a molten salt activation route. With the creation of a high specific surface area (1501.9 m2/g), a hierarchical porous structure, and the incorporation of oxygen-/nitrogen-functional groups, the as-prepared biochar (BC-24) exhibits great potential for supercapacitor application and organic pollutant elimination. The assembled biochar electrode delivers a specific capacitance of 378 F/g at 0.2 A/g with a good rate capability of 198 F/g at 10 A/g, and excellent cycling stability with 94.5% capacitance retention after 10,000 recycles. Moreover, BC-24 also exhibits superior catalytic activity for phenol degradation through peroxydisulfate (PDS) activation. The phenol (0.2 mM) can be effectively absorbed and then completely degraded within only 25 min over a wide pH range with low catalyst and PDS dosages. More importantly, TOC analysis indicates 81.7% of the phenol is mineralized within 60 min, confirming the effectiveness of the BC-24/PDS system. Quenching experiments and EPR measurements reveal that SO4·− and ·OH as well as 1O2 are involved in the phenol degradation, while the non-radical pathway plays the dominant role. This study provides valuable insights into the preparation of cost-effective carbon materials for supercapacitor application and organic contaminant remediation.

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Recent progress on porous carbon and its derivatives from plants as advanced electrode materials for supercapacitors

Cited by 245 publications

References 227 publications

Bioinspired Sustainable Sheetlike Porous Carbon Derived from Cassia fistula Flower Petal as an Electrode for High-Performance Supercapacitors

Bioinspired Sustainable Sheetlike Porous Carbon Derived from Cassia fistula Flower Petal as an Electrode for High-Performance Supercapacitors

Zinc‐ion hybrid supercapacitors: Design strategies, challenges, and perspectives

Heteroatom-Doped Hierarchically Porous Biochar for Supercapacitor Application and Phenol Pollutant Remediation

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