Biomass-derived nitrogen-doped porous carbons (NPC) and NPC/ polyaniline composites as high performance supercapacitor materials

Wang, Xizhi; Zeng, Xiaofei; Cao, Dapeng

doi:10.30919/es.180325

Cited by 72 publications

(33 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PAC supercapacitor exhibited a high specific capacitance of 195 F g −1 at 0.5 A g −1 and excellent cycle performance, retaining 99.0% of its original capacitance after 80 000 cycles. This low‐cost, scalable fabrication method presents a new alternative to commercial activated carbon for higher performance supercapacitor applications, and furthermore, to porous carbon composites in a variety of other applications …”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Kang

Kim

2019

Energy Tech

View full text Add to dashboard Cite

The capacitance of an electric double‐layer capacitor (EDLC) is largely determined by the surface area and the electrical conductivity of the electrode material. To enhance the performance of EDLCs, a separate activation procedure is commonly used to increase the porosity of the electrode. A facile and scalable method of producing highly porous carbon electrodes for high‐performance supercapacitors without a separate activation procedure via simple thermal treatment of potassium acetate is reported. Potassium acetate‐derived carbon (PAC) exhibits a high specific surface area of 1704 m2 g−1 and superior electrical conductivity of 22 950 S cm−1 without further treatment. When used for EDLC electrodes, PAC displays a high specific capacitance of 195 F g−1 at 0.5 A g−1 and excellent cyclic stability with capacitance retention of 99.0% over 80 000 charge/discharge cycles. Carbonization and simultaneous self‐activation of PAC demonstrates a facile and efficient method of producing carbon electrodes with a high surface area without an additional activation procedure, which provides an efficient solution for producing high‐performance supercapacitor electrodes at low cost.

show abstract

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Kang

Kim

2019

Energy Tech

View full text Add to dashboard Cite

show abstract

“…In recent years, wood-based composite materials have been widely used in structural construction, energy storage, sensors and environmental management. [48][49][50][51][52] In this review, we will focus on the research studies about applications of wood-based materials in water treatment.…”

Section: Wood-based Morph Genetic Materialsmentioning

confidence: 99%

Nanocellulose-based composite materials for wastewater treatment and waste-oil remediation

Yuan¹,

Ling²,

Murugadoss³

et al. 2020

ES Food Agrofor.

View full text Add to dashboard Cite

This review highlights the latest research studies about the use of lignocellulosic nanocellulose-based composites in the applications of wastewater treatment and waste-oil remediation. Three types of composites are described, including nanocellulose-based aerogels, nanocellulose-based membranes, and new wood-based morph-genetic materials. The fabrication and modification techniques to prepare these composites are introduced. The effectiveness and efficiency of these composites in the adsorption of heavy metal ions, dyes, and micropollutants, separation of oil and water, and catalytic degradation of organic pollutants are discussed, respectively. In addition, the challenges and opportunities of nanocellulose-based composites in these areas and the future research directions of lignocellulosic nanocellulose composites for wastewater treatment and waste-oil remediation are addressed.

show abstract

“…Polyaniline (PANI), one of the typical conductive polymers, gives a promising potential for being introduced by a molecular imprinting process because of economic and simple synthesis/doping procedures [ 32 , 36 , 37 , 38 ]. The excellent capacitive nature and rapid charge/discharge capability of electroactive PANI provides applications such as supercapacitors [ 39 , 40 , 41 , 42 ] and controlled drug release systems [ 43 ]. In addition, the excellent environmental durability and availability for operating in aqueous phase make PANI one of the best candidates for molecularly imprinted conductive polymers [ 44 ].…”

Section: Introductionmentioning

confidence: 99%

Perfluorooctanesulfonic Acid Detection Using Molecularly Imprinted Polyaniline on a Paper Substrate

Chi

Chen

Kameoka

2020

Sensors

View full text Add to dashboard Cite

Perfluorinated compounds like perfluorooctanesulfonic acid (PFOS) are synthetic water pollutants and have accumulated in environments for decades, causing a serious global health issue. Conventional assays rely on liquid chromatography and mass spectroscopy that are very expensive and complicated and thus limit the large-scale monitoring of PFOS in wastewater. To achieve low-cost and accurate detection of PFOS, we designed a paper-based sensor with molecularly imprinted polyaniline electrodes that have recognition sites specific to PFOS. The calibration curve of resistivity ratios as a function of PFOS concentrations has a linear range from 1 to 100 ppt with a coefficient of determination of 0.995. The estimated limit of detection is 1.02 ppt. We also investigated attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) spectra of the surface of the polyaniline (PANI) electrodes to propose the potential recognition sites in polyaniline matrix and the detection mechanism. This electrical paper sensor with low cost and excellent sensitivity and selectivity provides the potential for large-scale monitoring of wastewater.

show abstract

Biomass-derived nitrogen-doped porous carbons (NPC) and NPC/ polyaniline composites as high performance supercapacitor materials

Cited by 72 publications

References 66 publications

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Nanocellulose-based composite materials for wastewater treatment and waste-oil remediation

Perfluorooctanesulfonic Acid Detection Using Molecularly Imprinted Polyaniline on a Paper Substrate

Contact Info

Product

Resources

About