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  Synthesis of carbon frameworks with N, O and S-lined pores from gallic acid and thiourea for superior CO2 adsorption and supercapacitors

Tian, Z., Lai, F., Heil, T., Cao, S., & Antonietti, M. (2020). Synthesis of carbon frameworks with N, O and S-lined pores from gallic acid and thiourea for superior CO2 adsorption and supercapacitors. Science China Materials, 63(5), 748-757. doi:10.1007/s40843-019-1254-9.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-047C-B Version Permalink: http://hdl.handle.net/21.11116/0000-0006-5664-9
Genre: Journal Article

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 Creators:
Tian, Zhihong1, Author              
Lai, Feili1, Author              
Heil, Tobias2, Author              
Cao, Shaokui, Author
Antonietti, Markus3, Author              
Affiliations:
1Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2364733              
2Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2522693              
3Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

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Free keywords: carbon materials, structural pores, N/O/S doping, CO2 adsorption, supercapacitor, ionic liquid
 Abstract: “C2N”-species have emerged as a promising material with carbon-like applications in sorption, gas separation and energy storage, while with much higher polarity and functionality. Controlled synthesis of “C2N” structure is still based on complex and less-sustainable monomers, which prohibits its broader industrial application. Here we report a class of well-defined C2(NxOySz)1 carbons with both high content of N/O/S heteroatoms and large specific surface area of up to 1704 m2 g−1, which can be efficiently synthesized through a simple additive condensation process using simple gallic acid and thiourea as the building blocks, without sub-tractive activation. This 1,4-para tri-doped C2(NxOySz)1 structure leads to sufficient CO2 adsorption capacity (3.0 mmol g−1 at 273 K, 1 bar) and a high CO2/N2 selectivity (47.5 for a 0.15/0.85 CO2/N2 mixture at 273 K). Related to the polarity, the polar frameworks can be used as supercapacitor electrodes, with record specific capacitances as high as 255 F g−1at 3.5 V for a symmetric supercapacitor in ionic liquid electrolyte. This work discloses a general way for preparing a novel family of multifunctional, high heteroatom-doped porous materials for various applications.

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Language(s): eng - English
 Dates: 2020-03-092020
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/s40843-019-1254-9
Other: Tian2020
Other: OA angefragt 03-04-2020 SN
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Title: Science China Materials
Source Genre: Journal
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Publ. Info: Heidelberg : Springer
Pages: - Volume / Issue: 63 (5) Sequence Number: - Start / End Page: 748 - 757 Identifier: ISBN: 2199-4501