Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 35-41 |
| Number of pages | 7 |
| Journal | Macromolecular Research |
| Volume | 21 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry
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Fuel cell based on novel hyper-branched polybenzimidazole membrane. / Liu, Changzhi; Khan, Sher Bahadar; Lee, Minju; Kim, Kwang In; Akhtar, Kalsoom; Han, Haksoo; Asiri, Abdullah M.
In: Macromolecular Research, Vol. 21, No. 1, 01.01.2013, p. 35-41.Research output: Contribution to journal › Article
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.
PY - 2013/1/1
Y1 - 2013/1/1
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.
UR - http://www.scopus.com/inward/record.url?scp=84873404773&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873404773&partnerID=8YFLogxK
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 -