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Low-cost nanowired α-MnO2/C as an ORR catalyst in air-cathode microbial fuel cell.
Bioelectrochemistry. 2019 Feb; 125:38-45.B

Abstract

In this work, low cost α-MnO2 nanowires and α-MnO2 nanowires supported on carbon Vulcan (α-MnO2/C) have been synthesized via a simple and facile hydrothermal method for application in microbial fuel cells. The prepared samples have been characterized by X-ray diffraction (XRD), Raman spectroscopy and field emission scanning electron microscopy (FE-SEM). Electrocatalytic activities of the samples have been evaluated by means of cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) in a neutral phosphate buffer solution. EIS was performed at different potentials to gain further insight into the kinetic properties of α-MnO2/C. Both catalysts were used in air cathode microbial fuel cells to achieve power densities of 180 and 111 mWm-2 for α-MnO2/C and pristine α-MnO2 nanowires, respectively. α-MnO2/C functions as a good and economical alternative for Pt free catalysts in practical MFC applications, as shown by the findings of stability test and voltage generation cycles in long-term operation of MFC.

Authors+Show Affiliations

Deptartment of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, 51664 Tabriz, Iran. Electronic address: majidi@tabrizu.ac.ir.Deptartment of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, 51664 Tabriz, Iran. Electronic address: f.shahbazi@tabrizu.ac.ir.Electrochemistry Research Laboratory, Department of Physical Chemistry, Tabriz University, Tabriz, Iran.Research Laboratory for Electrochemical Instrumentation and Energy Systems, Department of Physical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30261369

Citation

Majidi, Mir Reza, et al. "Low-cost Nanowired α-MnO2/C as an ORR Catalyst in Air-cathode Microbial Fuel Cell." Bioelectrochemistry (Amsterdam, Netherlands), vol. 125, 2019, pp. 38-45.
Majidi MR, Shahbazi Farahani F, Hosseini M, et al. Low-cost nanowired α-MnO2/C as an ORR catalyst in air-cathode microbial fuel cell. Bioelectrochemistry. 2019;125:38-45.
Majidi, M. R., Shahbazi Farahani, F., Hosseini, M., & Ahadzadeh, I. (2019). Low-cost nanowired α-MnO2/C as an ORR catalyst in air-cathode microbial fuel cell. Bioelectrochemistry (Amsterdam, Netherlands), 125, 38-45. https://doi.org/10.1016/j.bioelechem.2018.09.004
Majidi MR, et al. Low-cost Nanowired α-MnO2/C as an ORR Catalyst in Air-cathode Microbial Fuel Cell. Bioelectrochemistry. 2019;125:38-45. PubMed PMID: 30261369.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Low-cost nanowired α-MnO2/C as an ORR catalyst in air-cathode microbial fuel cell. AU - Majidi,Mir Reza, AU - Shahbazi Farahani,Fatemeh, AU - Hosseini,Mirghasem, AU - Ahadzadeh,Iraj, Y1 - 2018/09/15/ PY - 2018/06/17/received PY - 2018/09/05/revised PY - 2018/09/06/accepted PY - 2018/9/28/pubmed PY - 2018/12/20/medline PY - 2018/9/28/entrez KW - Microbial fuel cell KW - ORR KW - α-MnO(2) nanowire KW - α-MnO(2)/C SP - 38 EP - 45 JF - Bioelectrochemistry (Amsterdam, Netherlands) JO - Bioelectrochemistry VL - 125 N2 - In this work, low cost α-MnO2 nanowires and α-MnO2 nanowires supported on carbon Vulcan (α-MnO2/C) have been synthesized via a simple and facile hydrothermal method for application in microbial fuel cells. The prepared samples have been characterized by X-ray diffraction (XRD), Raman spectroscopy and field emission scanning electron microscopy (FE-SEM). Electrocatalytic activities of the samples have been evaluated by means of cyclic voltammetry (CV), linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) in a neutral phosphate buffer solution. EIS was performed at different potentials to gain further insight into the kinetic properties of α-MnO2/C. Both catalysts were used in air cathode microbial fuel cells to achieve power densities of 180 and 111 mWm-2 for α-MnO2/C and pristine α-MnO2 nanowires, respectively. α-MnO2/C functions as a good and economical alternative for Pt free catalysts in practical MFC applications, as shown by the findings of stability test and voltage generation cycles in long-term operation of MFC. SN - 1878-562X UR - https://www.unboundmedicine.com/medline/citation/30261369/Low_cost_nanowired_α_MnO2/C_as_an_ORR_catalyst_in_air_cathode_microbial_fuel_cell_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1567-5394(18)30231-7 DB - PRIME DP - Unbound Medicine ER -