Polyaniline/β-MnO2 nanocomposites as cathode electrocatalyst for oxygen reduction reaction in microbial fuel cells

Zhou, Xinxing; Xu, Yunzhi; Mei, Xi; Du, Ningjie; Jv, Rongmao; Hu, Zhaoxia; Chen, Shouwen

doi:10.1016/j.chemosphere.2018.01.058

Cited by 53 publications

(15 citation statements)

References 55 publications

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“…31 It is important to note that the P max of 0.101 ± 0.01 mW cm −2 obtained for the CP/PANi-Cu cathode is superior to those obtained with other PANi-based catalysts for MFCs reported to date. These include the P max of 0.082 mW cm −2 achieved for a nanostructured PANi cathode catalyst, 47 0.0496 mW cm −2 for PANi nanofiber/carbon black composite cathode catalyst, 24 0.0248 mW cm −2 for PANi/β-MnO2 nanocomposites, 48 and 0.0124 mW cm −2 for graphene PANi. 49 Apart from being conductive, the CP/PANi-Cu cathode has also been shown to serve as a catalyst with high redox activity.…”

Section: Acs Applied Energy Materialsmentioning

confidence: 99%

Fabrication of a Carbon Paper/Polyaniline-Copper Hybrid and Its Utilization as an Air Cathode for Microbial Fuel Cells

Sonawane

Pant

Ghosh

et al. 2019

ACS Appl. Energy Mater.

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The use of platinum (Pt) catalysts in air cathode for microbial fuel cells (MFCs) is expensive and is limiting the adoption of MFCs for power generation from wastewaters. In this study, we propose an innovative approach for the fabrication of a carbon paper/copper-polyaniline (CP/PANi-Cu) hybrid which can be employed as a relatively inexpensive and effective air cathode for MFCs. The CP/PANi-Cu hybrid cathode composed of the uniform layer and relatively strong adhesion of PANi-Cu to CP which enables a significant oxygen reduction reaction (ORR). Consequently, the composite cathode demonstrated superior performance compared to that of a conventional Pt (CP/Pt) cathode by generating a maximum current of 0.50 ± 0.02 mA cm −2 compared with 0.35 ± 0.03 mA cm −2 obtained with the latter. When employed in MFCs, the power densities obtained with these cathodes were 0.244 ± 0.014 mW cm −2 under a current density of 0.85 ± 0.08 mA cm −2 for the Pt cathode, and 0.101 ± 0.01 mW cm −2 at 0.37 ± 0.04 mA cm −2 for the CP/PANi-Cu cathode. Moreover, the Nafion membrane attached to the CP/PANi-Cu cathode experienced much less biofouling than that used with the CP/Pt cathode and, thus, indicates that the new hybrid cathode is superior on the basis of overall performance, usage, and stability. A very detailed characterization of the Nafion membranes by Fourier transform infrared spectroscopy and 3D profilometry revealed more complex and thicker biofouling of the membrane attached to the CP/Pt cathode than that of the CP/PANi-Cu cathode.

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Section: Acs Applied Energy Materialsmentioning

confidence: 99%

Fabrication of a Carbon Paper/Polyaniline-Copper Hybrid and Its Utilization as an Air Cathode for Microbial Fuel Cells

Sonawane

Pant

Ghosh

et al. 2019

ACS Appl. Energy Mater.

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“…The gradual increase in the concentration of PB/PANI on the cathode demonstrated reasonable electrochemical catalytic activity and dramatically increased ORR activity [146]. Despite the poor interactivity between b-type Manganese-di-oxide and granular PANI on the surface, the greater surface area and higher PANI conductivity increased the ORR and PD activity [147]. Using a non-aqueous solution and heat process, a revolutionary Manganese-polypyrrole-carbon nanotube (Mn-PPY-CNT) formulation was developed, producing high dexterity and durability with the maximum PD compared to MFCs using the standard platinum catalyst [148].…”

Section: Conductive Polymers Composite Catalystmentioning

confidence: 98%

A Comprehensive Review on Oxygen Reduction Reaction in Microbial Fuel Cells

Dange¹,

Savla²,

Pandit³

et al. 2022

Journal of Renewable Materials

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The focus of microbial fuel cell research in recent years has been on the development of materials, microbes, and transfer of charges in the system, resulting in a substantial improvement in current density and improved power generation. The cathode is generally recognized as the limiting factor due to its high-distance proton transfer, slow oxygen reduction reaction (ORR), and expensive materials. The heterogeneous reaction determines power generation in MFC. This comprehensive review describes-recent advancements in the development of cathode materials and catalysts associated with ORR. The recent studies indicated the utilization of different metal oxides, the ferrite-based catalyst to overcome this bottleneck. These studies conclude that some cathode materials, in particular, graphene-based conductive polymer composites with non-precious metal catalysts provide substantial benefits for sustainable development in the field of MFCs. Furthermore, it also highlights the potentiality to replace the conventional platinum air cathode for the large-scale production of the next generation of MFCs. It was evident from the experiments that cathode catalyst needs to be blended with conductive carbon materials to make cathode conductive and efficient for ORR. This review discusses various antifouling strategies for cathode biofouling and its effect on the MFC performance. Moreover, it also depicts cost estimations of various catalysts essential for further scale-up of MFC technology.

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“…The remarkably high ORR activity can be attributed to the high specific surface area, the surface oxidation state of Mn, and composition-codependent behavior. PANI and beta-MnO 2 nanocomposites [54] were also built. PANI nanofibers were hybridized with cobalt nitrate [55].…”

Section: Polyaniline-derived Catalysts For Oxygen Reduction Reactionmentioning

confidence: 99%

Recent Advance on Polyaniline or Polypyrrole-Derived Electrocatalysts for Oxygen Reduction Reaction

Jiang

Huang

et al. 2018

Polymers

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The fuel cell, as one of the most promising electrochemical devices, is sustainable, clean, and environmentally benign. The sluggish oxygen reduction reaction (ORR) is an important fuel cell cathodic reaction that decides the efficiency of the overall energy conversion. In order to improve ORR efficiency, many efficient catalysts have been developed, in which the N-doped material is most popular. Polyaniline and polypyrrole as common aromatic polymers containing nitrogen were widely applied in the N-doped material. The shape-controlled N-doped carbon material can be prepared from the pyrolysis of the polyaniline or polypyrrole, which is effective to catalyze the ORR. This review is focused on the recent advance of polyaniline or polypyrrole-based ORR electrocatalysts.

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Polyaniline/β-MnO2 nanocomposites as cathode electrocatalyst for oxygen reduction reaction in microbial fuel cells

Cited by 53 publications

References 55 publications

Fabrication of a Carbon Paper/Polyaniline-Copper Hybrid and Its Utilization as an Air Cathode for Microbial Fuel Cells

Fabrication of a Carbon Paper/Polyaniline-Copper Hybrid and Its Utilization as an Air Cathode for Microbial Fuel Cells

A Comprehensive Review on Oxygen Reduction Reaction in Microbial Fuel Cells

Recent Advance on Polyaniline or Polypyrrole-Derived Electrocatalysts for Oxygen Reduction Reaction

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