Sustainable synthesis of phosphorus- and nitrogen-co-doped porous carbons with tunable surface properties for supercapacitors

Wang, Chunlei; Zhou, Ying; Sun, Lu; Wan, Peng; Zhang, Xu; Qiu, Jieshan

doi:10.1016/j.jpowsour.2013.03.126

Cited by 161 publications

(117 citation statements)

References 53 publications

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“…40 Total phosphorus content on the surface shows an increase up to 1073.15 K and then decreases with further increase in the carbonization temperature. Puziy et al 40 and Wang et al 41 have reported similar trend in their work. Hulicova-Jurcakova et al 36 have shown that P-doping could increase the voltage window tolerated by the electrode material at positive potentials due to the blockage of active oxidation sites by phosphate groups.…”

supporting

confidence: 71%

Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

et al. 2014

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In this study, we demonstrate a simple and low cost method to synthesize N/P/K co-doped porous carbon microfibers (CMFs) from a sugar-rich byproduct (cane molasses) as the precursor material. A two-step method for the synthesis of N/P/K co-doped porous CMFs involving electrospinning of precursor material followed by simple carbonization at various temperatures (773.15-1173.15 K) was successfully applied. The N/P/K co-doped porous CMFs exhibited high specific surface area ($580 m 2 g À1 ) andhierarchical porous structure. The potential application of N/P/K co-doped porous CMFs as supercapacitor electrodes was investigated in a two-electrode configuration employing aqueous K 2 SO 4 solution and ionic liquids/acetonitrile (ILs/ACN) mixtures as the electrolytes. A series of electrochemical measurements include cyclic voltammetry, galvanostatic charge-discharge and cycling durability all confirmed that the CMF-1073.15 supercapacitor exhibited good electrochemical performance with a specific capacitance of 171.8 F g À1 at a current load of 1 A g À1 measured in 1.5 M tetraethylammonium tetrafluoroborate (TEABF 4 )/ACN electrolyte, which can be charged and discharged up to a cell potential of 3.0 V. The specific energy density and power density of 53.7 W h kg À1 and 0.84 kW kg À1 were achieved. Furthermore, the CMF-1073.15 supercapacitor showed excellent cycling performance with capacitance retention of nearly 91% after 2500 charge-discharge cycles, characterizing its electrochemical robustness and stable capacitive performance.

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supporting

confidence: 71%

Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

et al. 2014

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“…H 3 PO 4 is a standout amongst the most cheap and regularly utilized activation and doping agents containing phosphorous [47] [48]. P-doped graphene could likewise be synthesized by other P-containing organics such as triphenyl phosphine or ammonium phosphate [49] [56] [60]- [65]. The structural, chemical, morphological and textural characteristics of the synthesized materials have been examined by powder X-ray diffraction patterns (PXRD), Fourier transform infrared spectroscopy (FT-IR), Confocal Raman spectroscopy, BET-N 2 adsorption/desorption isotherms, high resolution scanning electron microscopy (HRSEM), high resolution Transmission electron microscopy (HRTEM), and X-ray photoelectron spectroscopy (XPS).…”

Section: Introductionmentioning

confidence: 99%

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Ariharan¹,

Viswanathan²,

Nandhakumar³

2016

Graphene

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A variety of distinctive techniques have been developed to produce graphene sheets and their functionalized subsidiaries or composites. The production of graphene sheets by oxidative exfoliation of graphite can be a suitable route for the preparation of high volumes of graphene derivatives. P-substituted graphene material is developed for its application in hydrogen sorption in room temperature. Phosphorous doped graphene material with multi-layers of graphene shows a nearly ~2.2 wt% hydrogen sorption capacity at 298 K and 100 bar. This value is higher than that for reduced graphene oxide (RGO without phosphorous).

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“…In the previous studies, researchers have attempted to improve the electrical conductivity of carbon materials by chemical doping [21][22][23][24][25][26] and increased crystallized graphene structure [27], such as using H 2 SO 4 to strip off O and H from the C-OH, C-H, and C=O groups, to form the electro-conductive graphite structure; however, the effect is limited. Several studies have shown that doping carbon materials with heteroatoms (nitrogen, boron, sulfur and phosphorous) is a promising way to further improve the electrical conductivity [21][22][23][24][25][26], such as doping nitrogen into carbon to form pyridine-N, pyrrole-N and graphitic-N structure.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have shown that doping carbon materials with heteroatoms (nitrogen, boron, sulfur and phosphorous) is a promising way to further improve the electrical conductivity [21][22][23][24][25][26], such as doping nitrogen into carbon to form pyridine-N, pyrrole-N and graphitic-N structure. These donating electron structures can form enhanced π-bonding to promote electron transfer [28,29] which is advantageous for enhancing electrochemical sensing performances [30].…”

Section: Introductionmentioning

confidence: 99%

Ultra-low charge transfer resistance carbons by one-pot hydrothermal method for glucose sensing

Liu

Zhao

et al. 2017

Sci. China Mater.

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Hydrothermal carbon (HTC) is typically welldispersed, but it remains a great challenge for HTC to become conductive. Co-doping with heteroatoms has been confirmed to be an effective strategy to significantly promote the electrical conductivity of carbon. Moreover, there is no simple and green method to construct sensitive HTC based electrochemical biosensors until now. In this paper, N and S dualdoped carbon (NS-C) with ultra-low charge transfer resistance is easily synthesized from L-cysteine and glucose in a hydrothermal reaction system. The morphology, structural properties and electrochemical properties of the as-prepared NS-C are analyzed. In comparison with the undoped hydrothermal (UC) modified glassy carbon electrode (GCE), the charge transfer resistance of UC (476 Ω , indicating a high affinity of glucose oxidase to glucose. These results demonstrate that the hydrothermal method is an effective way for preparing high electrical conductivity carbon with excellent performances in biosensor application.

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Sustainable synthesis of phosphorus- and nitrogen-co-doped porous carbons with tunable surface properties for supercapacitors

Cited by 161 publications

References 53 publications

Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

Heteroatom Doped Multi-Layered Graphene Material for Hydrogen Storage Application

Ultra-low charge transfer resistance carbons by one-pot hydrothermal method for glucose sensing

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