An aqueous methanol sensor for use in direct
methanol fuel cells (DMFCs) applications is demonstrated; the
methanol sensor is built using dispersed single-walled carbon
nanotubes (SWCNTs) with Nafion117 solution to detect the methanol
concentration in water. The study is aimed at the potential use of the
carbon nanotubes array as a methanol sensor for direct methanol fuel
cells (DMFCs). The concentration of methanol in the fuel circulation
loop of a DMFC system is an important operating parameter, because
it determines the electrical performance and efficiency of the fuel cell
system. The sensor is also operative even at ambient temperatures
and responds quickly to changes in the concentration levels of the
methanol. Such a sensor can be easily incorporated into the methanol
fuel solution flow loop in the DMFC system.
[1] G. O. Young, "Synthetic structure of industrial plastics (Book
style with paper title and editor)," in Plastics, 2nd ed. vol. 3,
J. Peters, Ed. New York: McGraw-Hill, 1964, pp. 15-64.
[2] Kimberly M. McGrath, G.K.Surya Prakash and George.A.Olah,
Journal of Industrial and Engineering Chemistry, Direct
Methanol Fuel Cells, 10, (2004) 1036-1080.
[3] B.Ilic, P.Neuzil, T.Stanczyk, D.Czaplewski and G.Jordan Maclay,
Electrochemical and Solid-State Letters, Low temperature
Nafion bonding of silicon wafer, 2, (1999) 86-87.
[4] E.Skou, P.Kauranen and J. Hentschel, Solid State Ionics, Water
and methanol uptake in proton conducting Nafion membrane, 97,
(1997) 333-337.
[5] X.Ren, T.E.Springer and S.Gottesfeld, Journal of The
Electrochemical Society, Water and metahnol Uptakes in Nafion
Membranes and membrane effect on direct methanol cell
perfomance, 147, (2000) 92-98.
[6] Kenneth A. Mauritz, Rovert B. Moore, Chemical Reviews, State
of understanding of Nafion, 104, (2004) 4535.
[7] K. Ramya, K.S. Dhathathreyan, Journal of Electroanalytical
Chemistry, Direct methanol fuel cell : determination of fuel
crossover in a polymer electrolyte membrane, 542, (2003) 109-
115.
[8] A.Heinzel, V.M.Barragan, Journal of Power Sources, A review
of the state-of-the-art of the methanol crossover in direct
methanol fuel cell, 84, (1999) 70-74.
[1] G. O. Young, "Synthetic structure of industrial plastics (Book
style with paper title and editor)," in Plastics, 2nd ed. vol. 3,
J. Peters, Ed. New York: McGraw-Hill, 1964, pp. 15-64.
[2] Kimberly M. McGrath, G.K.Surya Prakash and George.A.Olah,
Journal of Industrial and Engineering Chemistry, Direct
Methanol Fuel Cells, 10, (2004) 1036-1080.
[3] B.Ilic, P.Neuzil, T.Stanczyk, D.Czaplewski and G.Jordan Maclay,
Electrochemical and Solid-State Letters, Low temperature
Nafion bonding of silicon wafer, 2, (1999) 86-87.
[4] E.Skou, P.Kauranen and J. Hentschel, Solid State Ionics, Water
and methanol uptake in proton conducting Nafion membrane, 97,
(1997) 333-337.
[5] X.Ren, T.E.Springer and S.Gottesfeld, Journal of The
Electrochemical Society, Water and metahnol Uptakes in Nafion
Membranes and membrane effect on direct methanol cell
perfomance, 147, (2000) 92-98.
[6] Kenneth A. Mauritz, Rovert B. Moore, Chemical Reviews, State
of understanding of Nafion, 104, (2004) 4535.
[7] K. Ramya, K.S. Dhathathreyan, Journal of Electroanalytical
Chemistry, Direct methanol fuel cell : determination of fuel
crossover in a polymer electrolyte membrane, 542, (2003) 109-
115.
[8] A.Heinzel, V.M.Barragan, Journal of Power Sources, A review
of the state-of-the-art of the methanol crossover in direct
methanol fuel cell, 84, (1999) 70-74.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:51160", author = "Kyongsoo Lee and and Seong-Il Kim and Byeong-Kwon Ju", title = "Methanol Concentration Sensitive SWCNT/Nafion Composites", abstract = "An aqueous methanol sensor for use in direct
methanol fuel cells (DMFCs) applications is demonstrated; the
methanol sensor is built using dispersed single-walled carbon
nanotubes (SWCNTs) with Nafion117 solution to detect the methanol
concentration in water. The study is aimed at the potential use of the
carbon nanotubes array as a methanol sensor for direct methanol fuel
cells (DMFCs). The concentration of methanol in the fuel circulation
loop of a DMFC system is an important operating parameter, because
it determines the electrical performance and efficiency of the fuel cell
system. The sensor is also operative even at ambient temperatures
and responds quickly to changes in the concentration levels of the
methanol. Such a sensor can be easily incorporated into the methanol
fuel solution flow loop in the DMFC system.", keywords = "methanol concentration, SWCNT, nafion composites", volume = "5", number = "2", pages = "125-3", }