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AuthorLiu, Yang
AuthorWang, Zhengren
AuthorTeng, Wei
AuthorZhu, Hongwei
AuthorWang, Jinxiu
AuthorElzatahry, Ahmed A.
AuthorAl-Dahyan, Daifallah
AuthorLi, Wei
AuthorDeng, Yonghui
AuthorZhao, Dongyuan
Available date2022-05-22T09:12:25Z
Publication Date2018
Publication NameJournal of Materials Chemistry A
ResourceScopus
Identifierhttp://dx.doi.org/10.1039/c7ta10106f
URIhttp://hdl.handle.net/10576/31372
AbstractN-doped mesoporous carbon materials are greatly useful in adsorption, catalysis and energy storage. Controlled synthesis of such materials with both high nitrogen content and desired pore structures remains a great challenge. Herein, we report a new template-catalyzed in situ polymerization and co-assembly approach to synthesize rich N-doped and uniform mesoporous carbons by using urea-formaldehyde (UF) as a carbon precursor and nitrogen source, and the acidic block copolymer polystyrene-block-poly(acrylic acid) (PS-b-PAA) as both a structure-directing agent and a catalyst for UF resin. In this synthesis, UF precursors can selectively interact with partially ionized PAA segments via hydrogen bonding and electrostatic interaction, and subsequently in situ polymerize to form bulk UF resin/PS-b-PAA composites by the catalysis of acidic PAA segments. After pyrolysis at 600 °C in nitrogen, the resulting N-doped mesoporous carbons possess high N content (up to ∼19 wt%), high ratio of basic species (∼49% pyridinic nitrogen and ∼28% pyrrolic nitrogen), uniform and large pore size (9.5–17.2 nm) and high surface area (458–476 m2 g−1). Owing to such unique features, the N-doped mesoporous carbons show high normalized CO2 adsorption capacity (4.71–5.15 μmol m−2) and excellent selectivity (60 : 1–67 : 1) to CO2 compared to N2 at 298 K and 1.0 bar, and exhibit excellent performance as a supercapacitor electrode with a high specific capacitance (239–252 F g−1).
Languageen
PublisherRoyal Society of Chemistry
SubjectBlock copolymers
Carbon dioxide
Catalysis
Doping (additives)
Hydrogen bonds
Nitrogen
Nitrogen compounds
Polymerization
Pore size
Resins
Urea
Urea formaldehyde resins
Controlled synthesis
High nitrogen content
High specific capacitances
In-situ polymerization
N-doped mesoporous carbons
Nitrogen-doped mesoporous carbons
Structure directing agents
Supercapacitor electrodes
Mesoporous materials
TitleA template-catalyzed: In situ polymerization and co-assembly strategy for rich nitrogen-doped mesoporous carbon
TypeArticle
Pagination3162-3170
Issue Number7
Volume Number6
dc.accessType Abstract Only


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