Qiaohua Tan

Study on anion electrochemical recognition based on a novel ferrocenyl compound with multiple binding sites.

A novel ferrocenyl anion receptor N, N, N, N-(dimethyl, ethyl, ferrocenecarboxylic amidodimethylene) ammonium fluoborate 2 with multiple binding sites was synthesized. Its anion recognition behaviors were investigated by CV, 1H NMR and UV-vis spectrum. It was found that the combination of two interactions enforced the anion binding ability and the binding selectivity of 2 to phosphate anion. The effects of scan rate on the CV curves of 2 with phosphate were also investigated. In different scan rate, the CV curves kept stable which indicated the strong binding between 2 and phosphate. According to relationships of peak potential, peak currents and scan rate of 2 binding with phosphate, the kinetic parameters of electrode process such as diffusion coefficient Dapp, surface transfer coefficient alphan alpha, and standard rate constant k0 were calculated.

Hyperbranched Ferrocenyl Polymer Film with High Charge Transport Efficiency

The electrochemical behaviors of hyperbranched poly(ferrocenyl-methylsilane) (HPFMS) and linear oligo(ferrocenyldimethylsilane) (LOFS) films were studied systematically by cyclic voltammetry and chronocoulometry under different polymer coverage and solvents. Both poly(ferrocenylsilanes) show stable cyclic voltammographs in LiClO 4 solutions. Compared with LOFS films, HPFMS films exhibit higher charge transport efficiency because of their hyperbranched structure: peak current ( i p) and apparent diffusion coefficient ( D app) for HPFMS films are larger than those for LOFS films, especially at high polymer coverage (3.8 x 10 (-11) vs 3.9 x 10 (-12) cm2/s for HPFMS and LOFS film at the coverage of 2.1 x 10 (-6) mol Fc/cm2). The conceptual models of electrode processes for HPFMS and LOFS films were proposed to account for higher charge transport efficiency of HPFMS films. It is also found that a solvent with the appropriate solubility parameter and polarity, lower viscosity, and higher dielectric constant is in favor of charge transport through polymer films, which is consistent with the proposed model of electrode process for HPFMS films. These results imply that hyperbranched ferrocenyl polymers have the potential to be excellent chemical sensor materials with convenient synthesis and high sensitivity.

Synthesis of Glycidyl Ether of Poly(bisphenol-A 1,1′-ferrocene dicarboxylate) and Its Electrochemical Behavior

A novel ferrocene-based epoxy compound of the glycidyl ether of poly(bisphenol-A 1,1′-ferrocene dicarboxylate) (GEPBFC) was synthesized and the electrochemical behavior of its films and solutions was investigated by cyclic voltammetry (CV). It was found that the GEPBFC films and solutions present different CV behavior in different solvents and the swelling ability of the solvent is the main factor that affects the CV behavior of GEPBFC films. The kinetic parameters of the film-electrode process, including the surface transfer coefficient, the apparent diffusion coefficient and the standard rate constant in LiClO4 ethanol solution, were calculated, and the corresponding electrode-process mechanism was discussed.

Synthesis of a Novel Ferrocene-Based Epoxy Compound and Its Electrochemical Behavior

A novel ferrocene-based epoxy compound was synthesized. It was characterized by 1H-NMR and FT-IR. The influence of different solvents and potential scan rates on the cyclic voltammetry (CV) behavior of the resultant compound was investigated. The relationship between the peak currents and potential scan rates indicates that the charge transport of the resultant ferrocene-based epoxy compound obeys Ficks Law.

Progress in synthesis of branched ferrocene-based polymers and their applications in supramolecular recognition and as precursors of magnetic materials

Branched polymers containing ferrocene have attracted much attention due to their redox and magnetic characteristics, among others. The recent research progress in synthetic methods of branched ferrocene-based polymers, as well as their properties and applications in supramolecular recognition and as precursors of magnetic materials, are reviewed in this paper.

Progress in the controllable synthesis of novel ferrocene-based polymers and their applications

In this review, the controllable synthesis of linear, hyperbranched and cross-linked ferrocene-based polymers are reviewed, and the applications of ferrocene-based polymer as precursor to prepare magnetic ceramics, carbon nanotubes and as photo-cross-linkable polymers in lithography are introduced.