Phosphorous and nitrogen dual heteroatom doped mesoporous carbon synthesized via microwave method for supercapacitor application

Nasini, Udaya B.; Bairi, Venu Gopal; Ramasahayam, Sunil Kumar; Bourdo, Shawn E.; Viswanathan, Tito; Shaikh, Ali U.

doi:10.1016/j.jpowsour.2013.11.014

Cited by 219 publications

(137 citation statements)

References 49 publications

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“…However, the electrolyte decomposition peak seems to appear at a cell voltage of 1.2 V. The widening of operation voltage window is due to the blockage of the electrochemical active oxidation sites of H 3 PO 4 /C-500 by phosphorus groups (see supporting information S1). The result is similar to the reported work in literature [14,26]. Thus, widening the operating voltage up to 1.1 V can significantly increase the energy density of the devices compared with that of 0.9 V. Ragone plots of H 3 PO 4 /C-500 obtained at 0.9 and 1.1 V are shown in Fig.…”

Section: Resultssupporting

confidence: 90%

“…Many strategies have been carried for optimizing the energy density of capacitors while keeping a high power density for supercapacitors [12,13], and pseudocapacitance materials are important candidates in this respect. Surfacefunctionalized carbon materials containing heteroatoms such as nitrogen or oxygen exhibit pseudacapacitance due to charge or mass transfer between the electrode and the ions of the electrolyte [14,15]. It is known that oxygen functionalities are usually present on the surface of PC as a residue from the carbon source or a result of activation process.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen, oxygen and phosphorus decorated porous carbons derived from shrimp shells for supercapacitors

Geng

et al. 2015

Electrochimica Acta

230

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Nitrogen, oxygen and phosphorus decorated porous carbons derived from shrimp shells for supercapacitors

Geng

et al. 2015

Electrochimica Acta

230

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“…25,26,28,29 Synthesis of P-and N-co-doped carbon.-In this study, nitrogen and phosphorous co-doped carbon was prepared by microwave-assisted method reported recently by the authors of this manuscript. 25,30 The synthesis method was carried out in three steps; Step 1: 7.56 g of melamine was dissolved in 275 ml of hot distilled water followed by the addition of 17.28 g of unmodified tannin and stirred for several minutes.…”

Section: Methodsmentioning

confidence: 99%

High Performance Asymmetric Supercapacitors Based on Dual Phosphorus (P) and Nitrogen (N) co-Doped Carbon and Graphene-Polyaniline Electrodes

Basnayaka

Kumar

Ram

et al. 2017

ECS J. Solid State Sci. Technol.

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We report an asymmetric type hybrid supercapacitor device with ultrahigh-energy density by employing a dual phosphorus and nitrogen co-doped carbon (PNDC) and a graphene (G)-polyaniline (PANI) nanocomposite electroactive electrodes. Dual-doped carbon is synthesized by the microwave assisted technique and G-PANI was synthesized by the chemical oxidative polymerization technique. An asymmetric PNDC/G-PANI electrodes with ionic liquids (IL) as electrolytes in supercapacitor are found capable of increasing the operating voltage up to 4 V and electrodes with aqueous electrolytes in supercapacitor are capable of increasing the operating voltage up to 2 V. The size-uniform porous nanostructures of PNDC and G-PANI provide a continuous electron pathways and facilitate short ionic transportation process. Further, IL increases the wettability of the electrodes and exhibited ultra-high energy density of 114 Wh/kg and 13.7 kW/kg power density at a 2 A/g current density. Therefore, the asymmetric type hybrid supercapacitor based on G-PANI nanocomposite and microwave assisted PNDC electrodes is a cost effective ultra-high energy density supercapacitor with high rate capability. An energy storage device called "Supercapacitors" or electrochemical capacitors (ECs) attracted extensive attention because of their outstanding properties over other energy storage devices, such as, fuel cells, batteries, and dielectric capacitors. ECs can provide instantaneously higher power density than batteries and higher energy density than dielectric capacitors, and therefore under consideration for applications in transportation, hybrid vehicles, modern electronics, and grid-connected power plants. [1][2][3][4] Even though, high power uptake can be achieved by ECs, the energy densities are significantly lower than rechargeable battery systems, which limit their applications as a main power source.5 Advanced supercapacitors must be developed with higher operating voltage and higher energy density (>100 Wh/kg) without sacrificing power delivery and cycle life for future practical applications. 4 One method of improving energy density is to design asymmetric supercapacitors by combining electrodes of the double layer capacitance with redox capacitance, which can make use of the different voltage windows of two electrodes.6-9 For such type of supercapacitors, one electrode stores charge through a reversible nonfaradaic process of ionic movement on the surface of an activated carbon, carbon nanotubes (CNTs) or graphene, 10-12 and other electrode is to utilize a reversible faradaic reaction of electroactive material, such as metal oxides (MnO 2 and RuO 2 ) and conducting polymers (CPs); (a) polyaniline (PANI), (b) polypyrrole (PPy) and (b) poly(3 4-ethylenedioxythiophene) (PEDOT). 13,14 Maximizing the specific capacitance(C) and cell voltage (V) are the key purposes of fabricating excellent supercapacitors to improvise their energy densities by employing high-reactivity electrode materials and proper electrolytes. Several asymmetric type supercapacito...

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“…Electrochemical measurements show that the areal capacitances for those carbon materials were within the range of 104-393 μF cm -2 [10][11][12]. However, only one-or two-electron exchange occurs per nitrogen functionality in the redox reaction between nitrogen functionalities and electrolyte ions [6]. As summarized by Conway, the stored charges per atom of accessible surface of electroactive materials in EDL capacitor and pseudocapacitor are 0.17-0.20 and 2.5 electrons, respectively [13].…”

Section: Introductionmentioning

confidence: 95%

“…The other strategy is that introducing more active heteroatom functionalities, which will react with electrolyte ions to generate more peudocapacitance. As for the latter strategy, many heteroatoms such as O, N, B, P and S have been intensively studied so far, especially for nitrogen due to its better pseudocapacitive activities [6][7][8]. Many reports on N-doped carbons reported a high areal capacitance based on the Brunauer-Emmett-Teller (BET) specific surface area.…”

Section: Introductionmentioning

confidence: 99%

Significant role of ultramicropores on capacitive properties of polypyrrole-based carbons

Wu¹,

Cai²,

Xiao³

et al. 2017

AIP Conference Proceedings

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Phosphorous and nitrogen dual heteroatom doped mesoporous carbon synthesized via microwave method for supercapacitor application

Cited by 219 publications

References 49 publications

Nitrogen, oxygen and phosphorus decorated porous carbons derived from shrimp shells for supercapacitors

Nitrogen, oxygen and phosphorus decorated porous carbons derived from shrimp shells for supercapacitors

High Performance Asymmetric Supercapacitors Based on Dual Phosphorus (P) and Nitrogen (N) co-Doped Carbon and Graphene-Polyaniline Electrodes

Significant role of ultramicropores on capacitive properties of polypyrrole-based carbons

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