2021
DOI: 10.1038/s41598-021-01151-3
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Zinc-salt assisted synthesis of three-dimensional oxygen and nitrogen co-doped hierarchical micro-meso porous carbon foam for supercapacitors

Abstract: Nitrogen and oxygen co-doped hierarchical micro-mesoporous carbon foams has been synthesized by pyrolyzation treatment of a preliminary foam containing melamine and formaldehyde as nitrogen, carbon and oxygen precursors and Zn(NO3)2. 6H2O and pluronic F127 as micro-meso pores generators. Several characterizations including thermal gravimetric analysis (TGA), X-ray diffraction (XRD) and Raman spectroscopy, FTIR and X-ray photoelectron spectroscopy, N2 adsorption–desorption, field emission scanning electron micr… Show more

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Cited by 13 publications
(5 citation statements)
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“…With correct salt choice and process parameters such as pyrolysis duration and temperature, as well as the type and ratio of the salt and the carbon precursor, it is easy to adjust the pore size distribution. [ 108 ]…”
Section: Synthesismentioning
confidence: 99%
“…With correct salt choice and process parameters such as pyrolysis duration and temperature, as well as the type and ratio of the salt and the carbon precursor, it is easy to adjust the pore size distribution. [ 108 ]…”
Section: Synthesismentioning
confidence: 99%
“…Upon carbonization, oxygen bridges (Zn–O–C) between ZnO and carbon derived from the precursor enhance the templating effect . Moreover, the decomposition of ZnO prompts the development of micro- and mesoporosity, and it can also generate oxygen functional groups on the carbon surface . ZIF-8 can also be altered to various polymorphic and pseudopolymorphic forms such as Zn-ZIF-L, ZIF-8 dia , ZIF-8 kat , ZIF- yqt , and ZIF-CO 3 -1. However, from this family, only Zn-ZIF-L has been studied to date as a carbon precursor, which creates an additional window of opportunity for fabricating novel ZIF-derived carbon materials.…”
Section: Introductionmentioning
confidence: 99%
“…Heteroatom doping can create more defects and active sites on the surface of carbon materials, which significantly improve the energy storage performance. The heteroatoms in carbon greatly optimize the capacitance performance. For instance, the introduction of N increases the electrical conductivity and surface wettability of carbon materials and leads to the extra pseudocapacitance, , while the introduction of S increases the pseudocapacitance by changing the electron structure and the hydrophilicity of the carbon material .…”
Section: Introductionmentioning
confidence: 99%