title: One-step fabrication of membraneless microbial fuel cell cathode by electropolymerization of polypyrrole onto stainless steel mesh.
abstract: A unique one-step method for fabrication of a membraneless microbial fuel cell (MFC) cathode was developed by coating a conductive polymer onto stainless steel mesh. The resulting polypyrrole/anthraquinone-2-sulfonate (PPy/AQS) film was synthesized via electropolymerization using AQS as the dopants. The scanning electron microscopy results indicated that the PPy/AQS film was uniformly formed on the metal mesh electrode without cracks on its surface and featuring a globular structure. Being equipped with such a cathode that was able to catalyze oxygen reduction and prevent water leakage, the membraneless MFC allowed power generation over 250 h and exhibited a maximum power density of 575 mW m(-2). Increasing film thickness seemed to result in a reduction in power performance due to the increased ohmic resistance of the cathode material and the enhanced difficulty for oxygen diffusion inside the cathode.
authors: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, PR China.
authors: Chunhua
authors: C
authors: Feng
authors: College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
authors: Qunyi
authors: Q
authors: Wan
authors: College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
authors: Zhisheng
authors: Z
authors: Lv
authors: College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
authors: Xianjun
authors: X
authors: Yue
authors: College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China.
authors: Yanfeng
authors: Y
authors: Chen
authors: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, PR China.
authors: Chaohai
authors: C
authors: Wei
mesh_terms: D000880:Anthraquinones / Q000737:chemistry; D001674:Bioelectric Energy Sources; D015374:Biosensing Techniques; D008855:Microscopy, Electron, Scanning; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D013193:Stainless Steel / Q000737:chemistry
chemical_list: D000880:Anthraquinones; D011108:Polymers; D011758:Pyrroles; D013193:Stainless Steel; C067635:polypyrrole; C023554:anthraquinone sulfonate