Controlled Layer-By-Layer Deposition of Carbon Nanotubes on Electrodes for Microbial Fuel Cells

Wenguo Wu, Hao Niu, Dayun Yang, Shi-Bin Wang, Jiefu Wang, Jia Lin and Chaoyi Hu
Additional contact information
Wenguo Wu: College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
Hao Niu: College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
Dayun Yang: Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen 361021, China
Shi-Bin Wang: Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
Jiefu Wang: College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
Jia Lin: College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
Chaoyi Hu: College of Chemical Engineering, Huaqiao University, Xiamen 361021, China

Energies, 2019, vol. 12, issue 3, 1-16

Abstract: Carbon nanotubes (CNTs) and polyelectrolyte poly(allylamine hydrochloride) (PAH) composite modified indium tin oxide (ITO) electrodes, by a layer-by-layer (LBL) self-assembly technique, was evaluated as an anode for microbial fuel cells (MFCs). The bioelectrochemistry of Shewanella loihica PV-4 in an electrochemical cell and the electricity generation performance of MFCs with multilayer (CNTs/PAH) n -deposited ITO electrodes as an anode were investigated. Experimental results showed that the current density generated on the multilayer modified electrode increased initially and then decreased as the deposition of the number of layers (n = 12) increased. Chronoamperometric results showed that the highest peak current density of 34.85 ± 2.80 mA/m 2 was generated on the multilayer (CNTs/PAH) 9 -deposited ITO electrode, of which the redox peak current of cyclic voltammetry was also significantly enhanced. Electrochemical impedance spectroscopy analyses showed a well-formed nanostructure porous film on the surface of the multilayer modified electrode. Compared with the plain ITO electrode, the multilayered (CNTs/PAH) 9 anodic modification improved the power density of the dual-compartment MFC by 29%, due to the appropriate proportion of CNTs and PAH, as well as the porous nanostructure on the electrodes.

Keywords: carbon nanotubes; layer-by-layer; microbial fuel cells; poly(allylamine hydrochloride); self-assembly; Shewanella loihica PV-4 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/3/363/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/3/363/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:3:p:363-:d:200400

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().