Supramolecular modification of Carbon Nanofibers with Poly(diallyl dimethylammonium) chloride and Triton X-100 for electrochemical application

被引:17
|
作者
Kaur, Prabhsharan [1 ]
Shin, Mun-Sik [2 ]
Park, Jin-Soo [2 ]
Verma, Gaurau [1 ,3 ]
Sekhon, Satpal Singh [4 ]
机构
[1] Panjab Univ, Dr Shanti Swarup Bhatnagar Univ Inst Chem Engn &, Dept Chem Engn & Technol, Chandigarh 160014, India
[2] Sangmyung Univ, Coll Engn, Dept Green Chem Engn, Cheonan 31066, South Korea
[3] Panjab Univ, Univ Inst Emerging Areas Sci & Technol, Ctr Nanosci & Nanotechnol, Chandigarh 160014, India
[4] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India
基金
新加坡国家研究基金会;
关键词
Carbon nanofibers; PDDA; Triton X-100; Supramolecular interactions; Inter-molecular charge transfer; MOLECULAR-DYNAMICS SIMULATIONS; METAL-FREE ELECTROCATALYSTS; OXYGEN REDUCTION; NONCOVALENT FUNCTIONALIZATION; NANOTUBES; SURFACTANT; POLYELECTROLYTE; GRAPHENE; DISPERSION; NANOTECHNOLOGY;
D O I
10.1016/j.ijhydene.2018.02.075
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Carbon nanofibers (CNF) exhibit special morphological features pertaining to their high aspect ratio. This work explores the polyelectrolyte (PDDA, Poly (diallyl dimethylammonium) chloride) wrapping on CNF and the interaction mechanism between them in the presence of a surfactant (octyl-phenol-ethoxylate (Triton X-100)). The wrapping has been achieved via a simple on/off ultrasonication methodology. PDDA behaves as a dispersing agent and an electron acceptor; the inter-molecular charge transfer takes place between CNF (electron donor) and PDDA, Triton X-100 works as a dispersing agent too but it affects pronouncedly the inter-molecular charge transfer. It has been observed that pi-pi, hydrophobic-hydrophilic, weak electrostatic, and van der Waals interactions all sum up to supramolecular interactions in CNF + PDDA + Triton X-100; leading to an augmented N content as compared to carbon nanotubes or graphene in a similar system. This system could work as the metal-free electrocatalyst for the oxygen reduction reaction in a Fuel cell. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:6575 / 6585
页数:11
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