Graphene oxide-impregnated PVA-STA composite polymer electrolyte membrane separator for power generation in a single-chambered microbial fuel cell

Santimoy Khilari; Soumya Pandit; Makarand M. Ghangrekar; Debabrata Pradhan; Debabrata Das

doi:10.1021/ie4016045

Graphene oxide-impregnated PVA-STA composite polymer electrolyte membrane separator for power generation in a single-chambered microbial fuel cell

Santimoy Khilari, Soumya Pandit, Makarand M. Ghangrekar, Debabrata Pradhan, Debabrata Das

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

Abstract

The present study deals with the development and application of a proton-exchange polymer membrane separator consisting of graphene oxide (GO), poly(vinyl alcohol) (PVA), and silicotungstic acid (STA) in a single-chambered microbial fuel cell (sMFC). GO and the prepared membranes were characterized by FT-IR spectroscopy, XRD, SEM, TEM, and AC impedance analysis. Higher power was achieved with a 0.5 wt % GO-incorporated PVA-STA-GO membrane compared to a Nafion 117 membrane. The effects of oxygen crossover and membrane-cathode- assembly (MCA) area were evaluated in terms of current density and Coulombic efficiency. The electrochemical behavior of the membrane in an MFC was improved by adding different amounts of GO to the membrane to reduce biofouling and also to enhance proton conductivity. A maximum power density of 1.9 W/m³ was obtained when acetate wastewater was treated in an sMFC equipped with a PVA-STA-GO-based MCA. Therefore, PVA-STA-GO could be utilized as an efficient and inexpensive separator for sMFCs.

Original language	English
Pages (from-to)	11597-11606
Number of pages	10
Journal	Industrial and Engineering Chemistry Research
Volume	52
Issue number	33
DOIs	https://doi.org/10.1021/ie4016045
State	Published - 21 Aug 2013
Externally published	Yes

ASJC Scopus subject areas

Chemistry (all)
Chemical Engineering (all)
Industrial and Manufacturing Engineering

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title = "Graphene oxide-impregnated PVA-STA composite polymer electrolyte membrane separator for power generation in a single-chambered microbial fuel cell",

abstract = "The present study deals with the development and application of a proton-exchange polymer membrane separator consisting of graphene oxide (GO), poly(vinyl alcohol) (PVA), and silicotungstic acid (STA) in a single-chambered microbial fuel cell (sMFC). GO and the prepared membranes were characterized by FT-IR spectroscopy, XRD, SEM, TEM, and AC impedance analysis. Higher power was achieved with a 0.5 wt % GO-incorporated PVA-STA-GO membrane compared to a Nafion 117 membrane. The effects of oxygen crossover and membrane-cathode- assembly (MCA) area were evaluated in terms of current density and Coulombic efficiency. The electrochemical behavior of the membrane in an MFC was improved by adding different amounts of GO to the membrane to reduce biofouling and also to enhance proton conductivity. A maximum power density of 1.9 W/m3 was obtained when acetate wastewater was treated in an sMFC equipped with a PVA-STA-GO-based MCA. Therefore, PVA-STA-GO could be utilized as an efficient and inexpensive separator for sMFCs.",

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Graphene oxide-impregnated PVA-STA composite polymer electrolyte membrane separator for power generation in a single-chambered microbial fuel cell. / Khilari, Santimoy; Pandit, Soumya; Ghangrekar, Makarand M. et al.
In: Industrial and Engineering Chemistry Research, Vol. 52, No. 33, 21.08.2013, p. 11597-11606.

Research output: Contribution to journal › Article › peer-review

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AU - Pandit, Soumya

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AU - Pradhan, Debabrata

AU - Das, Debabrata

PY - 2013/8/21

Y1 - 2013/8/21

N2 - The present study deals with the development and application of a proton-exchange polymer membrane separator consisting of graphene oxide (GO), poly(vinyl alcohol) (PVA), and silicotungstic acid (STA) in a single-chambered microbial fuel cell (sMFC). GO and the prepared membranes were characterized by FT-IR spectroscopy, XRD, SEM, TEM, and AC impedance analysis. Higher power was achieved with a 0.5 wt % GO-incorporated PVA-STA-GO membrane compared to a Nafion 117 membrane. The effects of oxygen crossover and membrane-cathode- assembly (MCA) area were evaluated in terms of current density and Coulombic efficiency. The electrochemical behavior of the membrane in an MFC was improved by adding different amounts of GO to the membrane to reduce biofouling and also to enhance proton conductivity. A maximum power density of 1.9 W/m3 was obtained when acetate wastewater was treated in an sMFC equipped with a PVA-STA-GO-based MCA. Therefore, PVA-STA-GO could be utilized as an efficient and inexpensive separator for sMFCs.

AB - The present study deals with the development and application of a proton-exchange polymer membrane separator consisting of graphene oxide (GO), poly(vinyl alcohol) (PVA), and silicotungstic acid (STA) in a single-chambered microbial fuel cell (sMFC). GO and the prepared membranes were characterized by FT-IR spectroscopy, XRD, SEM, TEM, and AC impedance analysis. Higher power was achieved with a 0.5 wt % GO-incorporated PVA-STA-GO membrane compared to a Nafion 117 membrane. The effects of oxygen crossover and membrane-cathode- assembly (MCA) area were evaluated in terms of current density and Coulombic efficiency. The electrochemical behavior of the membrane in an MFC was improved by adding different amounts of GO to the membrane to reduce biofouling and also to enhance proton conductivity. A maximum power density of 1.9 W/m3 was obtained when acetate wastewater was treated in an sMFC equipped with a PVA-STA-GO-based MCA. Therefore, PVA-STA-GO could be utilized as an efficient and inexpensive separator for sMFCs.

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Graphene oxide-impregnated PVA-STA composite polymer electrolyte membrane separator for power generation in a single-chambered microbial fuel cell

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