TY - JOUR
T1 - Incorporation of silver graphene oxide and graphene oxide nanoparticles in sulfonated polyether ether ketone membrane for power generation in microbial fuel cell
AU - Ben Liew, Kien
AU - Leong, Jun Xing
AU - Wan Daud, Wan Ramli
AU - Ahmad, Azizan
AU - Hwang, Jenn Jiang
AU - Wu, Wei
N1 - Funding Information:
The authors would like to acknowledge the financial support from the research grant of DIP-2012-27 by Universiti Kebangsaan Malaysia, Malaysia, and the Ministry of Education, Taiwan for its partial financial support of this research under grant 107RSG0011.
Funding Information:
The authors would like to acknowledge the financial support from the research grant of DIP-2012-27 by Universiti Kebangsaan Malaysia , Malaysia, and the Ministry of Education , Taiwan for its partial financial support of this research under grant 107RSG0011 .
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/2/15
Y1 - 2020/2/15
N2 - This study aims to design a new membrane for Microbial Fuel Cell (MFC) applications, where the membrane should have good proton conductivity, low oxygen permeability and anti-biofouling properties. The self-fabricated composite membranes are Graphene Oxide/Sulfonated Polyether Ether Ketone (GO-SPEEK) and Silver Graphene Oxide/Graphene Oxide/Sulfonated Polyether Ether Ketone (AgGO-GO-SPEEK). The proton conductivity of AgGO-GO-SPEEK membrane is 54.2% higher and the oxygen diffusion coefficient is 76.7% lower than Nafion® 117 membrane, yielding higher selectivity as separator in MFC applications. At the earlier optimum stage, MFC with GO-SPEEK generates the highest maximum power density (1134 mW m−2). Voltage achieved for first three feed cycles after enrichment are 620 mV–650 mV for all MFC system. However, the highest maximum power density (896 mW m−3) is attained by MFC with AgGO-GO-SPEEK membrane after 100 days of operation. The Electrochemical Impedance Spectroscopy (EIS) results show that AgGO-GO-SPEEK membrane has the lowest increment in terms of the membrane's resistance. AgGO-GO-SPEEK,a better anti-biofouling property membrane, leads to a longer and stable power production, caused by the better ion transport through membrane. The results indicated that AgGO-GO-SPEEK membrane is a promising alternative membrane to replace Nafion® 117 as a separator in the MFC.
AB - This study aims to design a new membrane for Microbial Fuel Cell (MFC) applications, where the membrane should have good proton conductivity, low oxygen permeability and anti-biofouling properties. The self-fabricated composite membranes are Graphene Oxide/Sulfonated Polyether Ether Ketone (GO-SPEEK) and Silver Graphene Oxide/Graphene Oxide/Sulfonated Polyether Ether Ketone (AgGO-GO-SPEEK). The proton conductivity of AgGO-GO-SPEEK membrane is 54.2% higher and the oxygen diffusion coefficient is 76.7% lower than Nafion® 117 membrane, yielding higher selectivity as separator in MFC applications. At the earlier optimum stage, MFC with GO-SPEEK generates the highest maximum power density (1134 mW m−2). Voltage achieved for first three feed cycles after enrichment are 620 mV–650 mV for all MFC system. However, the highest maximum power density (896 mW m−3) is attained by MFC with AgGO-GO-SPEEK membrane after 100 days of operation. The Electrochemical Impedance Spectroscopy (EIS) results show that AgGO-GO-SPEEK membrane has the lowest increment in terms of the membrane's resistance. AgGO-GO-SPEEK,a better anti-biofouling property membrane, leads to a longer and stable power production, caused by the better ion transport through membrane. The results indicated that AgGO-GO-SPEEK membrane is a promising alternative membrane to replace Nafion® 117 as a separator in the MFC.
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U2 - 10.1016/j.jpowsour.2019.227490
DO - 10.1016/j.jpowsour.2019.227490
M3 - Article
AN - SCOPUS:85075877952
SN - 0378-7753
VL - 449
JO - Journal of Power Sources
JF - Journal of Power Sources
M1 - 227490
ER -