News Column

Investigators at Lanzhou University Report Findings in Electrochemical Research

May 14, 2014

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Electrochemical Research have been published. According to news reporting from Lanzhou, People's Republic of China, by VerticalNews journalists, research stated, "Axle-sleeve structured composite materials made with multi-walled carbon nanotubes (MWCNTs) and polyaniline (PANI) were prepared, characterized, and employed as cost-effective counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). The composite was synthesized by co-polymerization of aniline with carboxylated MWCNTs by using ammonium persulfate in the acidic medium."

The news correspondents obtained a quote from the research from Lanzhou University, "Thin films of MWC-NTs/PANI were prepared via a spin coating technique followed by thermal treatment in N-2 atmosphere. The micro-structure of the composite was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) linked with energy dispersive spectroscopy (EDS). The coating layer of PANI on the MWCNTs and new-formed chemical bonds between MWCNTs and PANI was studied by UV-Vis absorption, X-ray photoelectron spectroscopy (XPS), Raman and FT-IR spectroscopic means. The effect of the multiple-level porosity or the axle-sleeve structures in the composite of MWCNTs/PANI on the electro-catalytic activity was investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopic (EIS) analysis. The DSSCs assembled with MWCNTs/PANI as CEs exhibit a comparable energy conversion efficiency (eta) of 7.21% as compared to that of a DSSC consisting of a screen-printed Pt CE (eta = 7.59%)."

According to the news reporters, the research concluded: "These promising results propose a potential application of MWCNTs/PANI in cost-effective DSSCs."

For more information on this research see: Axle-sleeve Structured MWCNTs/Polyaniline Composite Film as Cost-effective Counter-Electrodes for High Efficient Dye-Sensitized Solar Cells. Electrochimica Acta, 2014;121():285-293. Electrochimica Acta can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.

Our news journalists report that additional information may be obtained by contacting H.H. Niu, Lanzhou University, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, People's Republic of China. Additional authors for this research include S.X. Qin, X.L. Mao, S.W. Zhang, R.B. Wang, L. Wan, J.Z. Xu and S.D. Miao.

Keywords for this news article include: Asia, Lanzhou, Electrochemical Research, People's Republic of China

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Source: Electronics Newsweekly