Polyaniline/Carbon Nanotubes Composite Modified Anode Via Graft Polymerization and Self-Assembling for Microbial Fuel Cells

Overview

Journal Polymers (Basel)

Publisher MDPI

Date 2019 Apr 10

PMID 30960684

Citations 6

Authors

Wenguo Wu

Hao Niu

Dayun Yang

Shibin Wang

Nina Jiang

Jiefu Wang

Jia Lin

Chaoyi Hu

Affiliations

Soon will be listed here.

Abstract

Microbial fuel cells (MFCs) are promising devices for sustainable energy production, wastewater treatment and biosensors. Anode materials directly interact with electricigens and accept electrons between cells, playing an important role in determining the performance of MFCs. In this study, a novel carbon nanotubes (CNTs) and polyaniline (PANI) nanocomposite film modified Indium-tin oxide (ITO) anode was fabricated through graft polymerization of PANI after the modification of γ-aminopropyltriethoxysilane (APTES) on ITO substrate, which was followed by layer-by-layer (LBL) self-assembling of CNTs and PANI alternatively on its surface. (CNTs/PANI)/APTES/ITO electrode with low charge transfer resistance showed better electrochemical behavior compared to the bare ITO electrode. Twelve layers of CNTs/PANI decorated ITO electrode with an optimal nanoporous network exhibited superior biocatalytic properties with a maximal current density of 6.98 µA/cm², which is 26-fold higher than that of conventional ITO electrode in PV-4 bioelectrochemical system. MFCs with (CNTs/PANI)/APTES/ITO as the anode harvested a maximum output power density of 34.51 mW/m², which is 7.5-fold higher than that of the unmodified ITO electrode. These results demonstrate that (CNTs/PANI)APTES/ITO electrode has superior electrochemical and electrocatalytic properties compared to the bare ITO electrode, while the cellular toxicity of CNTs has an effect on the performance of MFC with (CNTs/PANI)/APTES/ITO electrode.

Citing Articles

Microbial Fuel Cell Construction Features and Application for Sustainable Wastewater Treatment.

Roy H, Rahman T, Tasnim N, Arju J, Rafid M, Islam M Membranes (Basel). 2023; 13(5).

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Effect of Sulfonated Inorganic Additives Incorporated Hybrid Composite Polymer Membranes on Enhancing the Performance of Microbial Fuel Cells.

Palanisamy G, Thangarasu S, Oh T Polymers (Basel). 2023; 15(5).

PMID: 36904534 PMC: 10006918. DOI: 10.3390/polym15051294.

Microbial Biofuel Cells: Fundamental Principles, Development and Recent Obstacles.

Kizys K, Zinovicius A, Jakstys B, Bruzaite I, Balciunas E, Petruleviciene M Biosensors (Basel). 2023; 13(2).

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From Microorganism-Based Amperometric Biosensors towards Microbial Fuel Cells.

Andriukonis E, Celiesiute-Germaniene R, Ramanavicius S, Viter R, Ramanavicius A Sensors (Basel). 2021; 21(7).

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