Issue 7, 2011
From the journal:

RSC Advances

Enable PVC plastic for a novel role: its functionalisation with diiron models of the sub-unit of [FeFe]–hydrogenase, assembly of film electrodes, and electrochemical investigations†

Lianjie Wang,a   Zhiyin Xiao,b   Xiang Rua  and  Xiaoming Liu*ab  

* Corresponding authors

a Institute for Advanced Study/Department of Chemistry, Nanchang University, Nanchang, China
E-mail: xiaoming.liu@ncu.edu.cn
Fax: +86 (0)791 3969254
Tel: +86 (0)791 3969254

b College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, China
E-mail: xiaoming.liu@mail.zjxu.edu.cn
Fax: +86 (0)573 8364 3937
Tel: +86 (0)573 8364 3937

Abstract

Three polymers functionalised with diiron carbonyl units, PVC–Fe-A, -B, and -C, were prepared using commercially available polymer PVC (polyvinyl chloride). PVC–Fe-A resulted from the reaction of the reduced form of a diiron complex, [Fe2(μ-S)2(CO)6], with PVC, whereas PVC–Fe-B and PVC–Fe-C were, respectively, prepared by reacting PVC–N3, the polymer functionalised with azide groups by substitution of the chloride of the polymer, with two diiron complexes, [Fe2(μ-SCH2C[double bond, length as m-dash]CH)2(CO)6] (1) and [Fe2(μ-SnBut)(μ-SCH2C[double bond, length as m-dash]CH)(CO)6] (2, nBut = –CH2CH2CH2CH3), via “click chemistry” under the catalysis of CuI. Those polymers were characterised using infrared spectroscopy (IR), scanning electron microscopy (SEM), and thermal gravimetric analysis (TGA). Film electrodes were assembled using a spin-coating technique by casting a mixture of the functionalised polymer, MWCNTs (multi-wall carbon nanotubes), and Nafion onto the surface of a vitreous carbon electrode. The assembled electrodes exhibited electrochemical responses and catalysis on proton reduction in a medium of acetonitrile-acetic acid with a positive shift in reduction potential by over 400 mV compared to the precursor diiron complexes (1 and 2).

Graphical abstract: Enable PVC plastic for a novel role: its functionalisation with diiron models of the sub-unit of [FeFe]–hydrogenase, assembly of film electrodes, and electrochemical investigations

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Article information

DOI
https://doi.org/10.1039/C1RA00343G
Article type
Paper
Submitted
23 Jun 2011
Accepted
04 Aug 2011
First published
16 Sep 2011

RSC Adv., 2011,1, 1211-1219

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Enable PVC plastic for a novel role: its functionalisation with diiron models of the sub-unit of [FeFe]–hydrogenase, assembly of film electrodes, and electrochemical investigations

L. Wang, Z. Xiao, X. Ru and X. Liu, RSC Adv., 2011, 1, 1211 DOI: 10.1039/C1RA00343G

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