Fabrication of hollow carbon spheres with robust and significantly enhanced capacitance behaviors

Hu, Dan; Chen, Chongyi; Liu, Qiao

doi:10.1007/s10853-018-2425-y

Cited by 11 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…41 Moreover, the carbonbased electrode materials in making the supercapacitors for renewable and sustainable electrochemical energy storage systems mainly consist of carbon shells along with interior voids with high encapsulation ability to increase the contact area between electrodes and electrolytes, ratios for surface to volume, good mechanical strength, low specific density, and tunable porosity. [41][42][43] The role of carbon shells not only facilitate the volume expansion/contraction, but also assist the electron transfer during charge storage process that eventually leads to cycling stability and outstanding performance of electrochemical energy storage systems. 41,44 The mechanism involved in such systems is significantly based on the facts that electrical doublelayer capacitance and pseudocapacitance, due to the electrostatic adsorption of ions on the surface and the fast and reversible Faradaic reactions at / near the surface of active materials, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…They also possess chemical/thermal stability, quick charging/discharging feature, and high power density 41 . Moreover, the carbon‐based electrode materials in making the supercapacitors for renewable and sustainable electrochemical energy storage systems mainly consist of carbon shells along with interior voids with high encapsulation ability to increase the contact area between electrodes and electrolytes, ratios for surface to volume, good mechanical strength, low specific density, and tunable porosity 41‐43 . The role of carbon shells not only facilitate the volume expansion/contraction, but also assist the electron transfer during charge storage process that eventually leads to cycling stability and outstanding performance of electrochemical energy storage systems 41,44 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Kumar

Ganesan

Al-Muhtaseb

et al. 2021

Intl J of Energy Research

View full text Add to dashboard Cite

Recently, the glycolipids biosurfactant materials have widely been utilized for many industrial applications due to their feasible surface activity, biodegradable as well as eco-friendly nature. Even though many of the earlier studies have been reported on such kind of surfactants, in this study we focused on porous rocks-like Fe 2 O 3 /C composites, which were magnificently synthesized from a novel tropical fruit biomass, using a glycolipid biosurfactant with high specific surface area of about 466.9 m 2 /g via a biofunctional single-step thermochemical method. They could be applied as an adsorbent to adsorb the pharmaceutical pollutants mainly, DCF from aqueous solution. Moreover, the highest adsorption capacity for DCF could be achieved, which is of about 77.51 mg/g. Furthermore, as-prepared glycolipid functionalized Fe 2 O 3 /C composites were used as electrode materials for high-performance supercapacitors.Galvanostatic charge-discharge results showed that the Fe 2 O 3 /C modified electrode possesses a specific capacitance of about 374 F/g with a current density of 0.2 A/g and it has retained 84% of capacitance, even after 3000 cycles. The Abbreviations: 16SrRNA, 16S Ribosomal Ribonucleic Acid; ACs, activated carbons; AOP, advanced oxidation processes; Cc, Crescentia cujete; CCBs, Crescentia cujete biomasses; CCFS, Crescentia cujete fruit shell; DCF, Diclofenac; EIS, electrochemical impedance spectroscopy; FE-SEM, field emission scanning electron microscopy; GAC, glycolipid supported activated carbon; GCD profile, galvanostatic charge/discharge profile; GCE, glassy carbon electrode; GMAC, glycolipid supported magnetic activated carbon; RC, Crescentia cujete biomass products of raw carbon.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Kumar

Ganesan

Al-Muhtaseb

et al. 2021

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

Hollow Carbon Spheres and Their Hybrid Nanomaterials in Electrochemical Energy Storage

Liu

Zhang

Cheng

et al. 2019

Advanced Energy Materials

242

149

View full text Add to dashboard Cite

Electrochemical energy storage is of extraordinary importance for fulfilling the utilization of renewable and sustainable energy sources. There is an increasing demand for energy storage devices with high energy and power densities, prolonged stability, safety, and low cost. In the past decade, numerous research efforts have been devoted to achieving these requirements, especially in the design of advanced electrode materials. Hollow carbon spheres (HCS) derived nanomaterials combining the advantages of 3D HCS and porous structures have been considered as alternative electrode materials for advanced energy storage applications, due to their unique features such as high surface‐to‐volume ratios, encapsulation capability, together with outstanding chemical and thermal stability. In this review, the authors first present a comprehensive overview of the synthetic strategies of HCS, and elucidate the design and synthesis of HCS‐derived nanomaterials including various types of HCS and their nanohybrids. Additionally, their significant roles as electrode materials for supercapacitors, lithium‐ion or sodium‐ion batteries, and sulfur hosts for lithium sulfur batteries are highlighted. Finally, current challenges in the synthesis of HCS and future directions in HCS‐derived nanomaterials for energy storage applications are proposed.

show abstract

Graphene Nanosphere as Advanced Electrode Material to Promote High Performance Symmetrical Supercapacitor

Yan

Gao

Zhang

et al. 2021

Small

View full text Add to dashboard Cite

To get carbon electrode with both excellent gravimetric and volumetric capacitances at high mass loadings is critical to supercapacitors. Herein, cracked defective graphene nanospheres (GNS) well meet above requirements. The morphology and structure of the GNS are controlled by polystyrene sphere template/glucose ratio, microwave heating time, and Fe content. The typical GNS with specific surface area of 2794 m2 g−1, pore volume of 1.48 cm3 g−1, and packing density of 0.74 g cm−3 performs high gravimetric and volumetric capacitances of 529 F g−1 and 392 F cm−3 at 1A g−1 with a capacitance retention of 62.5% at 100 A g−1 in a three‐electrode system in 6 mol L−1 KOH aqueous electrolyte. In a two‐electrode system, the GNS possesses energy density of 18.6 Wh kg−1 (13.8 Wh L−1) at the power density of 504 W kg−1, which is higher than all reported pure carbon materials in gravimetric energy density and higher than all reported heteroatom‐doped carbon materials in volumetric energy density, in aqueous solution, as far as it is known. A structural feature of carbon materials that possess both high energy density and high power density is pointed out here.

show abstract

Fabrication of hollow carbon spheres with robust and significantly enhanced capacitance behaviors

Cited by 11 publications

References 37 publications

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Hollow Carbon Spheres and Their Hybrid Nanomaterials in Electrochemical Energy Storage

Graphene Nanosphere as Advanced Electrode Material to Promote High Performance Symmetrical Supercapacitor

Contact Info

Product

Resources

About

Fabrication of hollow carbon spheres with robust and significantly enhanced capacitance behaviors

Cited by 11 publications

References 37 publications

Tropical fruit waste‐derived mesoporous rock‐like Fe 2 O 3 /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Tropical fruit waste‐derived mesoporous rock‐like Fe 2 O 3 /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Hollow Carbon Spheres and Their Hybrid Nanomaterials in Electrochemical Energy Storage

Graphene Nanosphere as Advanced Electrode Material to Promote High Performance Symmetrical Supercapacitor

Contact Info

Product

Resources

About

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications

Tropical fruit waste‐derived mesoporous rock‐like Fe ₂ O ₃ /C composite fabricated with amphiphilic surfactant‐templating approach showing massive potential for high‐tech applications