Nitrogen-doped porous carbon using ZnCl2 as activating agent for high-performance supercapacitor electrode materials

Chen, Haijun; Wei, Huanming; Fu, Ning; Qian, Wei; Liu, Yuping; Lin, Hualin; Han, Sheng

doi:10.1007/s10853-017-1453-3

Cited by 41 publications

(20 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides, considering the cost and resource abundance, in recent years, porous carbons derived from natural biomass and coals have been extensively excavated and show incremental improvements in EES utilizations. [24][25][26] Among the reported biomass/coal converted porous carbons, a chemical activation procedure which employ KOH, [27][28][29] K 2 CO 3 , 30 ZnCl 2 31,32 and H 3 PO 4 33,34 as activation agents is frequently used to create abundant porosity. Despite these achievements in developing high surface area porous carbons, the oen-utilized chemical activation method commonly leads to the formation of dominantly microporous structure which, compared with mesoporous or hierarchically porous conguration, may pose unfavorable impacts on electrolyte transfer and buffering, consequently leading to inferior rate capability of constructed electrodes.…”

Section: Introductionmentioning

confidence: 99%

Introducing catalytic gasification into chemical activation for the conversion of natural coal into hierarchically porous carbons with broadened pore size for enhanced supercapacitive utilization

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Introducing catalytic gasification into chemical activation for the conversion of natural coal into hierarchically porous carbons with broadened pore size for enhanced supercapacitive utilization

et al. 2018

View full text Add to dashboard Cite

show abstract

“…[51] In the case of N-PPECNTs, the type of nitrogen, nitrogen level, and porous nature strongly depend on the activation temperature of the Ppy@PECNTcomposite material. [51] In the case of N-PPECNTs, the type of nitrogen, nitrogen level, and porous nature strongly depend on the activation temperature of the Ppy@PECNTcomposite material.…”

Section: Resultsmentioning

confidence: 99%

“…In previous investigations, it was observed that the activation temperature played ap romisingr olei nt he synthetic process. [51] In the case of N-PPECNTs, the type of nitrogen, nitrogen level, and porous nature strongly depend on the activation temperature of the Ppy@PECNTcomposite material. However,t he preparation of PECNT material with ar elatively high amount of ad efinite kind of nitrogen and suitable pore structure is not simple.…”

Section: Resultsmentioning

confidence: 99%

Performance of Partially Exfoliated Nitrogen‐Doped Carbon Nanotubes Wrapped with Hierarchical Porous Carbon in Electrolytes

et al. 2018

View full text Add to dashboard Cite

The preparation of highly conductive, high-surface-area, heteroatom-doped, porous carbon nanocomposite materials with enhanced electrochemical performance for sustainable energy-storage technologies, such as supercapacitors, is challenging. Herein, a route for the large-scale synthesis of nitrogen-doped porous carbon wrapped partially exfoliated carbon nanotubes (N-PPECNTs) with an interconnected hierarchical porous structure, as an advanced electrode material that can realize several potential applications for energy storage, is presented. Polypyrrole conductive polymer acts as both nitrogen and carbon sources that contribute to the pseudocapacitance. Partially exfoliated carbon nanotubes (PECNTs) provide a high specific surface area for ion and charge transportation and act as a conductive matrix. The derived porous N-PPECNT displays a nitrogen content of 6.95 at %, with a specific surface area of 2050 m g , and pore volume of 1.13 cm g . N-PPECNTs, as an electrode material for supercapacitors, exhibit an excellent specific capacitance of 781 F g at 2 A g , with a high cycling stability of 95.3 % over 10 000 cycles. Furthermore, the symmetric supercapacitor exhibits remarkable energy densities as high as 172.8, 62.7, and 53.55 Wh kg in 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([BMIM][TFSI]), organic, and aqueous electrolytes, respectively. Also, biocompatible hydrogel and polymer gel electrolyte based, stable, flexible supercapacitors with excellent electrochemical performance could be demonstrated.

show abstract

“…Apparently, all the GCD curves exhibited high triangularity. The linear relationship between voltage and time represented excellent electrochemical capacitance behavior (Chen et al, 2018b). Further, the C g values were calculated and inversely correlated with current densities.…”

Section: Electrochemical Performance Of Npacmentioning

confidence: 93%

Pyrolysis of Biomass Impregnated With Ammonium Dihydrogen Phosphate for Polygeneration of Phenol and Supercapacitor Electrode Material

Wang

Bolatibieke

et al. 2020

Front. Chem.

View full text Add to dashboard Cite

A new method was proposed for polygeneration of phenol and supercapacitor electrode material from pyrolysis of biomass impregnated with ammonium dihydrogen phosphate (NH 4 H 2 PO 4). The pyrolysis experiments were executed to demonstrate the product distributions under different NH 4 H 2 PO 4-to-poplar (PA-to-PL) ratios and pyrolysis temperatures in a lab-scale device. The results revealed that the phenol yield attained its optimal value of 4.57 wt% with a satisfactory selectivity of 20.09% at 500 • C under PA-to-PL ratio of 0.6. The pyrolytic solid product obtained at this condition was then subjected to high temperature activation directly without additional activators to prepare N and P co-doped activated carbon (NPAC) as supercapacitor. The physicochemical analysis of NPAC showed that the N and P contents in NPAC reached 3.75 and 3.65 wt%, respectively. The electrochemical experiments executed in a three-electrode system indicated that the NPAC exhibited promising electrochemical performance with a satisfactory capacitance of 181.3 F g −1 at 1 A g −1 .

show abstract

Nitrogen-doped porous carbon using ZnCl2 as activating agent for high-performance supercapacitor electrode materials

Cited by 41 publications

References 63 publications

Introducing catalytic gasification into chemical activation for the conversion of natural coal into hierarchically porous carbons with broadened pore size for enhanced supercapacitive utilization

Introducing catalytic gasification into chemical activation for the conversion of natural coal into hierarchically porous carbons with broadened pore size for enhanced supercapacitive utilization

Performance of Partially Exfoliated Nitrogen‐Doped Carbon Nanotubes Wrapped with Hierarchical Porous Carbon in Electrolytes

Pyrolysis of Biomass Impregnated With Ammonium Dihydrogen Phosphate for Polygeneration of Phenol and Supercapacitor Electrode Material

Contact Info

Product

Resources

About