TY - JOUR
T1 - Fuel cell based on novel hyper-branched polybenzimidazole membrane
AU - Liu, Changzhi
AU - Khan, Sher Bahadar
AU - Lee, Minju
AU - Kim, Kwang In
AU - Akhtar, Kalsoom
AU - Han, Haksoo
AU - Asiri, Abdullah M.
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013/1
Y1 - 2013/1
N2 - A novel hyper-branched polybenzimidazole (HB-PBI) has been synthesized and efficiently utilized as a conducting polymer for the fabrication of an efficient high temperature fuel cell. The developed fuel cell showed outstanding proton conductivity (0.168 Scm-1 at 150 °C) along with excellent single cell performance, displaying a maximum power density of 0.346 Wcm-2. The HB-PBI has been synthesized by polymerization of bibenzimidazole diterephthalic acid (BBIDTA) and 3,3′-diaminobenzene in the presence of poly phosphoric acid while the BBIDTA was synthesized by treating trimellitic anhydride with 3,3′-diaminobenzene. Both HB-PBI and BBIDTA were structurally characterized by nuclear magnetic resonance (1H and 13C NMR). HB-PBI showed high thermal stability and mechanical properties, findings that were corroborated by thermogravimetric analysis and use of a universal testing machine. Additionally, proton conduction and the thermal and mechanical properties of HB-PBI were compared with polybenzene imidazole (m-PBI), and found that HB-PBI has higher proton conducting, thermal and mechanical properties.
AB - A novel hyper-branched polybenzimidazole (HB-PBI) has been synthesized and efficiently utilized as a conducting polymer for the fabrication of an efficient high temperature fuel cell. The developed fuel cell showed outstanding proton conductivity (0.168 Scm-1 at 150 °C) along with excellent single cell performance, displaying a maximum power density of 0.346 Wcm-2. The HB-PBI has been synthesized by polymerization of bibenzimidazole diterephthalic acid (BBIDTA) and 3,3′-diaminobenzene in the presence of poly phosphoric acid while the BBIDTA was synthesized by treating trimellitic anhydride with 3,3′-diaminobenzene. Both HB-PBI and BBIDTA were structurally characterized by nuclear magnetic resonance (1H and 13C NMR). HB-PBI showed high thermal stability and mechanical properties, findings that were corroborated by thermogravimetric analysis and use of a universal testing machine. Additionally, proton conduction and the thermal and mechanical properties of HB-PBI were compared with polybenzene imidazole (m-PBI), and found that HB-PBI has higher proton conducting, thermal and mechanical properties.
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U2 - 10.1007/s13233-012-0191-2
DO - 10.1007/s13233-012-0191-2
M3 - Article
AN - SCOPUS:84873404773
VL - 21
SP - 35
EP - 41
JO - Macromolecular Research
JF - Macromolecular Research
SN - 1598-5032
IS - 1
ER -