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- W4386564103 abstract "Abstract Melamine and graphitic carbon nitride (g‐C 3 N 4 ) obtained by thermal condensation of melamine were doped in polyacrylonitrile (PAN) films. Nitrogen‐doped porous carbons were then prepared by pyrolysis of the composite films. Though all the porous carbons had a high nitrogen content of at least 10 %, g‐C 3 N 4 was more efficient than melamine in nitrogen doping. The nitrogen content was elevated with the increase of the amount of each dopant, the highest value of 19.0 % was achieved by g‐3 (porous carbon obtained from the PAN/g‐C 3 N 4 composite film with a mass ratio of 3). Amongst the nitrogen functionalities, pyridinic‐N and pyrrolic‐N held a percentage of at least 80 %. Compared with the carbon materials obtained from melamine doped PAN films, those from g‐C 3 N 4 doped ones exhibited larger surface area and average pore size, and higher pore volume. The difference mainly resulted from the thermostability and size of the dopants. The g‐C 3 N 4 doped materials thus presented more excellent electrochemical properties. The specific capacitance of g‐3 electrode was 135.3 F/g at a current density of 0.5 A/g. Rather than melamine, g‐C 3 N 4 could improve the chemical composition and textural properties of the carbon materials, thus enhancing their supercapacitor performance." @default.
- W4386564103 created "2023-09-10" @default.
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- W4386564103 date "2023-09-07" @default.
- W4386564103 modified "2023-09-30" @default.
- W4386564103 title "Porous Carbons Prepared from Polyacrylonitrile Doped with Graphitic Carbon Nitride or Melamine for Supercapacitor Applications" @default.
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- W4386564103 doi "https://doi.org/10.1002/slct.202301801" @default.
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