Fumed Silica Nanoparticles Incorporated in Quaternized Poly(Vinyl Alcohol) Nanocomposite Membrane for Enhanced Power Densities in Direct Alcohol Alkaline Fuel Cells

A nanocomposite polymer membrane based on quaternized poly(vinyl alcohol)/fumed silica (QPVA/FS) was prepared via a quaternization process and solution casting method. The physico-chemical properties of the QPVA/FS membrane were investigated. Its high ionic conductivity was found to depend greatly on the concentration of fumed silica in the QPVA matrix. A maximum conductivity of 3.50 × 10 −2 S/cm was obtained for QPVA/5%FS at 60 °C when it was doped with 6 M KOH. The permeabilities of methanol and ethanol were reduced with increasing fumed silica content. Cell voltage and peak power density were analyzed as functions of fumed silica concentration, temperature, methanol and ethanol concentrations. A maximum power density of 96.8 mW/cm 2 was achieved with QPVA/5%FS electrolyte using 2 M methanol + 6 M KOH as fuel at 80 °C. A peak power density of 79 mW/cm 2 was obtained using the QPVA/5%FS electrolyte with 3 M ethanol + 5 M KOH as fuel. The resulting peak power densities are higher than the majority of published reports. The results confirm that QPVA/FS exhibits promise as a future polymeric electrolyte for use in direct alkaline alcoholic fuel cells.

[1]  Liang An,et al.  Carbon-neutral sustainable energy technology: Direct ethanol fuel cells , 2015 .

[2]  M. I. Khan,et al.  Novel quaternized aromatic amine based hybrid PVA membranes for acid recovery , 2015 .

[3]  Chun–Chen Yang,et al.  Novel quaternized polyvinyl alcohol/quaternized chitosan nano-composite as an effective hydroxide-conducting electrolyte , 2015 .

[4]  A. J. Hunt,et al.  Improving water selectivity of poly (vinyl alcohol) (PVA) – Fumed silica (FS) nanocomposite membranes by grafting of poly (2-hydroxyethyl methacrylate) (PHEMA) on fumed silica particles , 2015 .

[5]  Sang Yong Nam,et al.  A review of polymer–nanocomposite electrolyte membranes for fuel cell application , 2015 .

[6]  S. Lue,et al.  Polytetrafluoroethylene (PTFE)/silane cross-linked sulfonated poly(styrene–ethylene/butylene–styrene) (sSEBS) composite membrane for direct alcohol and formic acid fuel cells , 2014 .

[7]  Jen-Ming Yang,et al.  Preparation and characterization of poly(vinyl alcohol)/sodium alginate blended membrane for alkaline solid polymer electrolytes membrane , 2014 .

[8]  Hsieh-Yu Li,et al.  Thermally stable polybenzimidazole/carbon nano-tube composites for alkaline direct methanol fuel cell applications , 2014 .

[9]  Hsieh-Yu Li,et al.  Novel polyvinyl alcohol nanocomposites containing carbon nano-tubes with Fe3O4 pendants for alkaline fuel cell applications , 2013 .

[10]  B. Hwang,et al.  Alkali doped polyvinyl alcohol/graphene electrolyte for direct methanol alkaline fuel cells , 2013 .

[11]  D. Sangeetha,et al.  Efficient utilization of anion exchange composites using silica filler for low temperature alkaline membrane fuel cells , 2013, International Journal of Plastics Technology.

[12]  Yan-Jie Wang,et al.  Alkaline polymer electrolyte membranes for fuel cell applications. , 2013, Chemical Society reviews.

[13]  Jianhong Liu,et al.  Synthesis and characterization of novel cross-linked quaternized poly(vinyl alcohol) membranes based on morpholine for anion exchange membranes , 2013 .

[14]  G. Jiang,et al.  High durable poly(vinyl alcohol)/Quaterized hydroxyethylcellulose ethoxylate anion exchange membranes for direct methanol alkaline fuel cells , 2013 .

[15]  Yuan Fang,et al.  An alkaline direct methanol fuel cell with a polymer fiber membrane and MnO2-catalyzed cathode , 2013 .

[16]  Dragana L. Žugić,et al.  Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane , 2013, International Journal of Electrochemical Science.

[17]  T. Zhao,et al.  Synthesis and characterization of crosslinked poly (vinyl alcohol)/layered double hydroxide composite polymer membranes for alkaline direct ethanol fuel cells , 2012 .

[18]  A. S. Gomes,et al.  Hybrid membranes of PVA for direct ethanol fuel cells (DEFCs) applications , 2012 .

[19]  Ying‐Ling Liu,et al.  High-performance direct methanol alkaline fuel cells using potassium hydroxide-impregnated polyvinyl alcohol/carbon nano-tube electrolytes , 2012 .

[20]  Chun–Chen Yang Alkaline direct methanol fuel cell based on a novel anion-exchange composite polymer membrane , 2012, Journal of Applied Electrochemistry.

[21]  Chun–Chen Yang,et al.  Fabrication of anion-exchange composite membranes for alkaline direct methanol fuel cells , 2012 .

[22]  Ying‐Ling Liu,et al.  Alkali doped polyvinyl alcohol/multi-walled carbon nano-tube electrolyte for direct methanol alkalin , 2011 .

[23]  Chun–Chen Yang,et al.  Permeant transport properties and cell performance of potassium hydroxide doped poly(vinyl alcohol) , 2011 .

[24]  Chun–Chen Yang,et al.  Enhanced performance of a direct methanol alkaline fuel cell (DMAFC) using a polyvinyl alcohol/fumed silica/KOH electrolyte , 2010 .

[25]  Jianshe Liu,et al.  Alkaline solid polymer electrolyte membranes based on structurally modified PVA/PVP with improved alkali stability , 2010 .

[26]  S. Rowshanzamir,et al.  Review of the proton exchange membranes for fuel cell applications , 2010 .

[27]  K. Scott,et al.  Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells , 2010 .

[28]  Chun–Chen Yang,et al.  Quaternized poly(vinyl alcohol)/alumina composite polymer membranes for alkaline direct methanol fuel cells , 2010 .

[29]  T. Zhao,et al.  Poly (vinyl alcohol)/3-(trimethylammonium) propyl-functionalized silica hybrid membranes for alkaline direct ethanol fuel cells , 2010 .

[30]  H. Lv,et al.  Alkali Doped Poly(vinyl alcohol) (PVA) for Anion-exchange Membrane Fuel Cells: Ionic Conductivity, Chemical Stability and FT-IR Characterizations , 2010 .

[31]  Hoyoung Kim,et al.  Effect of morphology and pore size of sulfonated mesoporous benzene-silicas in the preparation of poly(vinyl alcohol)-based hybrid nanocomposite membranes for direct methanol fuel cell application. , 2009, The journal of physical chemistry. B.

[32]  Q. Zhang,et al.  Pervaporation performance of quaternized poly(vinyl alcohol) and its crosslinked membranes for the dehydration of ethanol , 2009 .

[33]  A. Zhu,et al.  Performance of organic-inorganic hybrid anion-exchange membranes for alkaline direct methanol fuel cells , 2009 .

[34]  S. Lue,et al.  Diffusion of multicomponent vapors in a poly(dimethyl siloxane) membrane , 2008 .

[35]  J. Lai,et al.  Diffusivity enhancement of water vapor in poly(vinyl alcohol)–fumed silica nano-composite membranes: Correlation with polymer crystallinity and free-volume properties , 2008 .

[36]  Q. Zhang,et al.  Synthesis and characterization of cross-linked quaternized poly(vinyl alcohol)/chitosan composite anion exchange membranes for fuel cells , 2008 .

[37]  Q. Liu,et al.  Preparation and characterization of cross-linked quaternized poly(vinyl alcohol) membranes for anion exchange membrane fuel cells , 2008 .

[38]  Shingjiang Jessie Lue,et al.  Crystallinity and Stability of Poly(vinyl alcohol)‐Fumed Silica Mixed Matrix Membranes , 2007 .

[39]  P. Shen,et al.  Quaternized poly(phthalazinon ether sulfone ketone) membrane for anion exchange membrane fuel cells , 2006 .

[40]  Young Moo Lee,et al.  Preparation and characterization of crosslinked PVA/SiO2 hybrid membranes containing sulfonic acid groups for direct methanol fuel cell applications , 2004 .

[41]  T. Okada,et al.  Alkali doped poly(vinyl alcohol) for potential fuel cell applications , 2010 .