TY - JOUR
T1 - Controllable synthesis of multi-walled carbon nanotubes/poly(3,4- ethylenedioxythiophene) core-shell nanofibers with enhanced electrocatalytic activity
AU - Zhang, Kaixin
AU - Xu, Jingkun
AU - Duan, Xuemin
AU - Lu, Limin
AU - Hu, Dufen
AU - Zhang, Long
AU - Nie, Tao
AU - Brown, Kenneth B.
PY - 2014/8/10
Y1 - 2014/8/10
N2 - Core-shell structured poly(3,4-ethylenedioxythiophene)/multi-walled carbon nanotubes (PEDOT/MWCNTs) nanofibers were synthesized through an interfacial polymerization technique. The interfacial polymerization at a liquid-liquid interface allowed PEDOT to grow uniformly on the surface of MWCNTs due to the presence of π-π interactions between PEDOT and MWCNTs walls. The morphology, structure and composition of the as-prepared PEDOT/MWCNTs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR). In addition, the electrocatalytic properties of PEDOT/MWCNTs toward redox reactions of magnolol, a widely used traditional Chinese medicine, were systematically investigated. The results showed that the PEDOT/MWCNTs nanofibers exhibited a distinctly higher activity for the detection of magnolol compared with those of pure MWCNTs and PEDOT. The remarkably enhanced activity for the nanofibers can be attributed to the unique configuration and synergistic contribution between PEDOT and MWCNTs. The presented method is a general, facile and green approach for the synthesis of polymer/CNTs nanofibers, which is significant for the development of high performance electrocatalysts for biosensing and fuel cell applications.
AB - Core-shell structured poly(3,4-ethylenedioxythiophene)/multi-walled carbon nanotubes (PEDOT/MWCNTs) nanofibers were synthesized through an interfacial polymerization technique. The interfacial polymerization at a liquid-liquid interface allowed PEDOT to grow uniformly on the surface of MWCNTs due to the presence of π-π interactions between PEDOT and MWCNTs walls. The morphology, structure and composition of the as-prepared PEDOT/MWCNTs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared spectroscopy (FT-IR). In addition, the electrocatalytic properties of PEDOT/MWCNTs toward redox reactions of magnolol, a widely used traditional Chinese medicine, were systematically investigated. The results showed that the PEDOT/MWCNTs nanofibers exhibited a distinctly higher activity for the detection of magnolol compared with those of pure MWCNTs and PEDOT. The remarkably enhanced activity for the nanofibers can be attributed to the unique configuration and synergistic contribution between PEDOT and MWCNTs. The presented method is a general, facile and green approach for the synthesis of polymer/CNTs nanofibers, which is significant for the development of high performance electrocatalysts for biosensing and fuel cell applications.
KW - multi-walled carbon nanotubes
KW - poly(3,4-ethylenedioxythiophene)
KW - determination
KW - magnolol
UR - http://www.scopus.com/inward/record.url?scp=84903793739&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2014.06.053
DO - 10.1016/j.electacta.2014.06.053
M3 - Article
VL - 137
SP - 518
EP - 525
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -