气候变化领域集成服务门户(CCPortal): Boosting water oxidation on metal-free carbon nanotubes: Via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte

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DOI	10.1039/c8ee01487f
	Boosting water oxidation on metal-free carbon nanotubes: Via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte
	Mo C.; Jian J.; Li J.; Fang Z.; Zhao Z.; Yuan Z.; Yang M.; Zhang Y.; Dai L.; Yu D.
发表日期	2018
ISSN	17545692
起始页码	3334
结束页码	3341
卷号	11 期号:12
英文摘要	Engineering the surface and electronic structures of nanocarbons is a viable strategy to boost their catalytic performance. Herein, rather than conventional covalent doping, we used the concept of interfacial charge transfer doping of carbon nanotubes (CNTs) to noncovalently adsorb certain polyelectrolytes (i.e. poly(diallyldimethylammonium chloride), PDDA, acceptor) onto pure CNTs (donor) to act as a buffer layer for richening reactants (OH-) via electrostatic interaction and to induce notable interfacial charge redistribution via directional intermolecular charge-transfer, which not only improves the reaction kinetics but also creates a high density of catalytic carbon sites, eventually transforming the inactive CNTs into efficient metal-free water oxidation catalysts. As expected, the resulting PDDA-adsorbed CNT catalysts yielded a remarkably lower overpotential of 370 mV at 10.0 mA cm-2 with a smaller Tafel slope of 76 mV dec-1 with respect to pure CNTs (>520 mV, 166 mV dec-1), even on a par with the benchmark RuO2 (360 mV, 137 mV dec-1) in 0.1 M KOH. © 2018 The Royal Society of Chemistry.
英文关键词	Catalysts; Catalytic oxidation; Charge transfer; Chlorine compounds; Electronic structure; Polyelectrolytes; Potassium hydroxide; Reaction kinetics; Ruthenium compounds; Yarn; Catalytic performance; Interfacial charge; Interfacial charge transfer; Intermolecular charge transfer; Overpotential; Poly (diallyldimethylammonium chloride); Tafel slopes; Water oxidation; Carbon nanotubes; adsorption; carbon nanotube; catalysis; catalyst; chemical reaction; electrolyte; oxidation; polymer; reaction kinetics
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190059
作者单位	Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Key Laboratory of High Performance Polymer-based Composites of Guangdong Province, School of Chemistry Sun Yat-Sen University, Guangzhou, 510275, China; Department of Macromolecule Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
推荐引用方式 GB/T 7714	Mo C.,Jian J.,Li J.,et al. Boosting water oxidation on metal-free carbon nanotubes: Via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte[J],2018,11(12).
APA	Mo C..,Jian J..,Li J..,Fang Z..,Zhao Z..,...&Yu D..(2018).Boosting water oxidation on metal-free carbon nanotubes: Via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte.Energy & Environmental Science,11(12).
MLA	Mo C.,et al."Boosting water oxidation on metal-free carbon nanotubes: Via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte".Energy & Environmental Science 11.12(2018).