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The influence of nano-silica on properties of sulfonated polystyrene-lignosulfonate membranes as proton exchange membranes for direct methanol fuel cell application
Gonggo S.T.a,b, Bundjali B.a, Hariyawati K.c, Arcana I.M.a
a Inorganic and Physical Chemistry Research Division, Faculty of Mathematic and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
b Physical Chemistry Research Groups, Faculty of Teacher Training and Educational Sciences, University of Tadulako, Palu, Indonesia
c Department of Electrical Engineering, Faculty of Industrial Engineering, University of Achmad Yani, Cimahi, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2017 Wiley Periodicals, Inc.The membranes of sulfonated polystyrene, lignosulfonate and nano-silica (SPS-LS-SiO2) that contain different percentages of nano-silica (1%–5% [w/w]) were prepared and characterized for polymer electrolyte membrane fuel cell (PEMFC). Nano-silica is an inorganic compound with a surface area of 200 m2/g, and it has a hygroscopic property so that the presence of nano-silica in membrane can increase properties of membrane. The SPS-LS-SO2 membranes were prepared by casting polymer solution and membranes were characterized by functional groups analysis, water uptake, ion exchange capacity (IEC), proton conductivity, methanol permeability, thermal stability, mechanical properties, and surface morphology. The results show the increase of nano-silica composition in SPS-LS-SiO2 membranes, the IEC, water uptake, proton conductivity increase, but a pore size of membrane decreases. On the other hand, it can maintain the mechanical strength of membranes. The SPS-LS-SiO2 membranes with nano-silica composition of 2%–5% (w/w) have the same properties with Nafion®117, especially in proton conductivity at the same treatment and measurement conditions, and its methanol permeability is about 28%–35% smaller than that of Nafion®117 (2.09 × 10−6 cm2/s), so this SPS-LS-SiO2 membrane could be used as a polymer electrolyte membrane for direct methanol fuel cell (DMFC) application.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Lignosulfonates,Methanol permeability,Nano Silica,Polymer electrolyte membranes,Sulfonated polystyrene[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]lignosulfonate,methanol permeability,nano-silica,polymer electrolyte membrane,sulfonated polystyrene[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘Directorate of Higher Education, Department of National Education, Indonesia; Research Grant of Competition Research Program’}, {‘$’: ‘The financial support for this work was provided by the Directorate of Higher Education, Ministry of Research and Higher Education, Republic of Indonesia, under the Research Grant of Competition Research Program, 2015.’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1002/adv.21844[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]