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Type: Journal article
Title: Heteroatom (N or N-S)-doping induced layered and honeycomb microstructures of porous carbons for CO₂ capture and energy applications
Other Titles: Heteroatom (N or N-S)-doping induced layered and honeycomb microstructures of porous carbons for CO(2) capture and energy applications
Author: Tian, W.
Zhang, H.
Sun, H.
Suvorova, A.
Saunders, M.
Tade, M.
Wang, S.
Citation: Advanced Functional Materials, 2016; 26(47):8651-8661
Publisher: Wiley
Issue Date: 2016
ISSN: 1616-301X
Statement of
Wenjie Tian, Huayang Zhang, Hongqi Sun, Alexandra Suvorova, Martin Saunders, Moses Tade, and Shaobin Wang
Abstract: Increasing global challenges such as climate change, environmental pollution, and energy shortage have stimulated the worldwide explorations into novel and clean materials for their applications in the capture of carbon dioxide, a major greenhouse gas, and toxic pollutants, energy conversion, and storage. In this study, two microstructured carbons, namely N-doped pillaring layered carbon (NC) and N, S codoped honeycomb carbon (NSC), have been fabricated through a one-pot pyrolysis process of a mixture containing glucose, sodium bicarbonate, and urea or thiourea. The heteroatom doping is found to induce tailored microstructures featuring highly interconnected pore frameworks, high sp²-C ratios, and high surface areas. The formation mechanism of the varying pore frameworks is believed to be hydrogen-bond interactions. NSC displays a similar CO₂ adsorption capacity (4.7 mmol g⁻¹ at 0 °C), a better CO₂/N₂ selectivity, and higher activity in oxygen reduction reaction as compared with NC-3 (the NC sample with the highest N content of 7.3%). NSC favors an efficient four-electron reduction pathway and presents better methanol tolerance than Pt/C in alkaline media. The porous carbons also exhibit excellent rate performance as supercapacitors.
Description: Published online: October 28, 2016
Rights: © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
RMID: 0030096571
DOI: 10.1002/adfm.201603937
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Appears in Collections:Chemical Engineering publications

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