Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

Guo, Lin; Wang, Qiong; Yang, Xuan; Cai, Zengxuan; Xiong, Yongzhi; Huang, Biao

doi:10.1039/d0ra02398a

Cited by 86 publications

(36 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the spectra, I D /I G is found to be 1.1 for phosphorousdoped nanomaterials which are greater than the AC (0.9). This agrees with the XRD results indicating that after the heat treatment and phosphorous doping, more structural defects are introduced into the structure [4,39,42,50,51].…”

Section: Raman Studiessupporting

confidence: 91%

“…The increase in the average pore size V t, and total surface area after phosphorus doping can be related to that thermal treatment during the doping process. As heating at such a high temperature has created more mesopores that were blocked during the oxidation by nitric acid and that is the reason that AC t P-850 has the highest S BET and V t [4,39,48,60]. More pore widening also occurs after the thermal treatment and AC t P-850 displays 4.07 nm average pore size [8,41,44,49].…”

Section: Surface Area and Porosity Measurementsmentioning

confidence: 99%

“…Heteroatom-doped activated carbon can be prepared by mixing the heteroatom containing precursor with carbon precursors before the carbonization process. Such as, Lin et al mixed the phosphoric acid with biomass sawdust to get the phosphorus-doped carbon [39]. Wang et al reported 317 F g −1 in 6 M KOH for N and P co-doped microporous carbon synthesized by polar nonaqueous solvent-assisted microwave method [40].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and electrochemical study of phosphorus-doped porous carbon for supercapacitor applications

et al. 2021

View full text Add to dashboard Cite

In the present investigation, we report the incorporation of phosphorous (P) atoms in the activated carbon and study its effect on the electrochemical performance. Porous carbon is synthesized by the chemical activation method from a bioresource and then pretreated with nitric acid. Phosphorus atoms were doped by the simple chemical method. The obtained phosphorous-doped nano-materials show an appreciable change of porosity and creation of a more wide range of meso- and macropores, and this affects their adsorption and electrochemical performance. The electrochemical study shows that doped carbon obtained at 850 °C (ACtP-850) delivers the maximum specific capacitance (328 Fg−1) in neutral aqueous electrolyte (1 M Na2SO4). The doped carbon material not only exhibits good cycling performance but also the highest specific energy of 29 Wh kg−1 corresponding to a specific power of 646 W kg−1. The improved capacitive performance of phosphorous-doped porous carbon material proposes its use in energy storage applications.

show abstract

Section: Raman Studiessupporting

confidence: 91%

Section: Surface Area and Porosity Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and electrochemical study of phosphorus-doped porous carbon for supercapacitor applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The P-doping and P-functionalities provide a high supercapacitor performance (enhanced charge storage and high stability), as was previously reported. [51][52][53] The high-resolution deconvoluted N 1s peak (Fig. 5c) showed the different nitrogen doping congurations (Nquaternary, N-pyrrolic, and N-pyridinic) and functionalities (amine, amide, and N-Fe bonds).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen–phosphorus doped graphitic nano onion-like structures: experimental and theoretical studies

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Another promising method is the heteroatom-doping (nitrogen, sulphur, phosphorous, boron and so on) of a porous AC matrix, which enhances the capability to store charge in the material. Therefore, heteroatom doping into the porous carbon framework results in the modification of the electronic structure, which can remarkably improve the electrical conductivity, the surface wettability, properties of the electrons donor and hence the electrochemical features of the porous carbon materials [ 21 , 22 , 23 , 24 ]. For instance, we reported previously in our study on the synthesis of nitrogen-doped peanut shell activated carbon (NPAC) by chemical activation and nitrogen-post-doping processes with KOH and melamine respectively.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Behavior of Peanut-Shell Activated Carbon/Molybdenum Oxide/Molybdenum Carbide Ternary Composites

et al. 2021

View full text Add to dashboard Cite

Biomass-waste activated carbon/molybdenum oxide/molybdenum carbide ternary composites are prepared using a facile in-situ pyrolysis process in argon ambient with varying mass ratios of ammonium molybdate tetrahydrate to porous peanut shell activated carbon (PAC). The formation of MoO2 and Mo2C nanostructures embedded in the porous carbon framework is confirmed by extensive structural characterization and elemental mapping analysis. The best composite when used as electrodes in a symmetric supercapacitor (PAC/MoO2/Mo2C-1//PAC/MoO2/Mo2C-1) exhibited a good cell capacitance of 115 F g−1 with an associated high specific energy of 51.8 W h kg−1, as well as a specific power of 0.9 kW kg−1 at a cell voltage of 1.8 V at 1 A g−1. Increasing the specific current to 20 A g−1 still showcased a device capable of delivering up to 30 W h kg−1 specific energy and 18 kW kg−1 of specific power. Additionally, with a great cycling stability, a 99.8% coulombic efficiency and capacitance retention of ~83% were recorded for over 25,000 galvanostatic charge-discharge cycles at 10 A g−1. The voltage holding test after a 160 h floating time resulted in increase of the specific capacitance from 74.7 to 90 F g−1 at 10 A g−1 for this storage device. The remarkable electrochemical performance is based on the synergistic effect of metal oxide/metal carbide (MoO2/Mo2C) with the interconnected porous carbon. The PAC/MoO2/Mo2C ternary composites highlight promising Mo-based electrode materials suitable for high-performance energy storage. Explicitly, this work also demonstrates a simple and sustainable approach to enhance the electrochemical performance of porous carbon materials.

show abstract

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

Abstract: P-doped porous carbon can be prepared by one-step carbonization using biomass sawdust impregnated with a small amount of phosphoric acid.

Cited by 86 publications

References 53 publications

Synthesis and electrochemical study of phosphorus-doped porous carbon for supercapacitor applications

Synthesis and electrochemical study of phosphorus-doped porous carbon for supercapacitor applications

Nitrogen–phosphorus doped graphitic nano onion-like structures: experimental and theoretical studies

Enhanced Electrochemical Behavior of Peanut-Shell Activated Carbon/Molybdenum Oxide/Molybdenum Carbide Ternary Composites

Contact Info

Product

Resources

About