Bowl-like carbon sheet for high-rate electrochemical capacitor application

Huang, Miaofeng; Jiang, Xiaoping; Zhang, Huan; Yin, Heshan; Li, Xinxin; Ju, Xin

doi:10.1016/j.jpowsour.2014.08.055

Cited by 27 publications

(17 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5c) retain their rectangular shapes through a wide range of voltage sweep rates (0.1 to 2 V s -1 ). The rectangular shape of the cyclic voltammetry (CV) curves is due to the rapid reorganization in the electrical double-layer at the switching potentials [30]. These electrochemical results should be attributed to the structural advantages of Ni/AC-2: fine and uniform nickel nanoparticles welldispersed in partially graphitic porous carbon, accelerating the delivery of electrons, and thus increasing conductivity.…”

Section: Resultsmentioning

confidence: 99%

Nickel/Porous Carbon Composite Derived from Bimetallic MOFs for Electrical Double-Layer Supercapacitor Application

Meng¹

2018

International Journal of Electrochemical Science

View full text Add to dashboard Cite

A novel method to synthesize nickel/ porous activated carbon composite materials has been proposed initially from bimetallic Ni(II)-MOF-5s. Electrochemical results present that the nickel /activated carbon maintains nearly 83 % capacity with the current density increases from 0.2 to 50 A g -1 and shows excellent cyclic stability of about 1.5 % decrease after 5000 cycles. This product also demonstrated a good rectangularity at a high scan voltage of 2 V s -1 and very low charge transfer resistance of approximately 0.35 Ω, which can be a prospective electrode material for electrochemical double-layer supercapacitor applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Nickel/Porous Carbon Composite Derived from Bimetallic MOFs for Electrical Double-Layer Supercapacitor Application

Meng¹

2018

International Journal of Electrochemical Science

View full text Add to dashboard Cite

show abstract

“…For instance, bowl-shaped carbon nanosheets have been used as an electrode material for supercapacitors (Fig. 11 a) [ 29 ]. In virtue of the merits including higher bulk density, interconnected channel, and hierarchical porosity of thin-walled bowl-like sheet, the prepared carbon sheet had a high specific capacitance of 151 F g −1 at 0.5 A g −1 .…”

Section: Applications Of Asymmetric Structure Of Carbon- and Silica-based Nanoparticlesmentioning

confidence: 99%

Section: Applications Of Asymmetric Structure Of Carbon- and Silica-based Nanoparticlesmentioning

confidence: 99%

Recent Progress on Asymmetric Carbon- and Silica-Based Nanomaterials: From Synthetic Strategies to Their Applications

Liang

et al. 2022

Nano-Micro Lett.

View full text Add to dashboard Cite

Highlights The synthetic strategies and fundamental mechanisms of various asymmetric carbon- and silica-based nanomaterials were systematically summarized. The advantages of asymmetric structure on their related applications were clarified by some representative applications of asymmetric carbon- and silica-based nanomaterials. The future development prospects and challenges of asymmetric carbon- and silica-based nanomaterials were proposed. Abstract Carbon- and silica-based nanomaterials possess a set of merits including large surface area, good structural stability, diversified morphology, adjustable structure, and biocompatibility. These outstanding features make them widely applied in different fields. However, limited by the surface free energy effect, the current studies mainly focus on the symmetric structures, such as nanospheres, nanoflowers, nanowires, nanosheets, and core–shell structured composites. By comparison, the asymmetric structure with ingenious adjustability not only exhibits a larger effective surface area accompanied with more active sites, but also enables each component to work independently or corporately to harness their own merits, thus showing the unusual performances in some specific applications. The current review mainly focuses on the recent progress of design principles and synthesis methods of asymmetric carbon- and silica-based nanomaterials, and their applications in energy storage, catalysis, and biomedicine. Particularly, we provide some deep insights into their unique advantages in related fields from the perspective of materials’ structure–performance relationship. Furthermore, the challenges and development prospects on the synthesis and applications of asymmetric carbon- and silica-based nanomaterials are also presented and highlighted.

show abstract

“…the preparation of PCNs with bowl-like morphology. [7][8][9][10][11][12][13] Lin et al have prepared the bowl-like nitrogen-doped carbon hollow nanoparticles, using the template of fully collapsed vesicles which were formed by self-assembly of an amphiphilic block copolymer. 11 Unfortunately, the block copolymer was homemade due to the lack of commercially-available reagents, which is unfavorable for the scalable preparation.…”

mentioning

confidence: 99%

“…Based on the osmotic pressure, generated by acid (or alkali) treatment, as the main driving force for the collapse of core shell spheres (resin and acrylic-styrene were core and shell, respectively) to form the bowl-like shape, Huang et al have successfully prepared bowl-like monodispersed porous carbon nanoparticles (BMPCNs). 8 Comparing the hollow polymer nanospheres, silica nanospheres are low cost. Using SiO 2 nanosphere as the core, Pei et al have prepared BMPCNs through the collapse of the porous carbon shell into its internal cavity after removing the embedded SiO 2 core.…”

mentioning

confidence: 99%

High electrocapacitive performance of bowl-like monodispersed porous carbon nanoparticles prepared with an interfacial self-assembly process

Zhang

Weng

Zhao³

et al. 2017

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Bowl-like monodispersed porous carbon nanoparticles (BMPCNs) have been successfully prepared with a facile and scalable approach, and the as-prepared BMPCNs are examined thoroughly by various physical characterizations. Physical measurements display that BMPCNs have the high surface area (1255mg), hierarchical porosity, a certain amount of oxygen-containing groups and high graphitization degree. These unique structure features endow BMPCNs with a high capacitance (281Fg at 0.5Ag), excellent rate capability (209Fg at 50Ag), and outstanding cycling stability (94.8% capacity retention after 10,000 cycles at 10Ag) in electrochemical double-layer capacitors, suggesting its promising applications in field of energy conversion and storage. Further, the studies on formation mechanism of BMPCNs suggest that, the CTAB wormlike micelles assembling with silica/resorcinol-formaldehyde oligomers at the interface of tetraethyl orthosilicate droplets under Stöber condition determines the morphology of BMPCNs.

show abstract

Bowl-like carbon sheet for high-rate electrochemical capacitor application

Cited by 27 publications

References 48 publications

Nickel/Porous Carbon Composite Derived from Bimetallic MOFs for Electrical Double-Layer Supercapacitor Application

Nickel/Porous Carbon Composite Derived from Bimetallic MOFs for Electrical Double-Layer Supercapacitor Application

Recent Progress on Asymmetric Carbon- and Silica-Based Nanomaterials: From Synthetic Strategies to Their Applications

High electrocapacitive performance of bowl-like monodispersed porous carbon nanoparticles prepared with an interfacial self-assembly process

Contact Info

Product

Resources

About