Polyethyleneimine-Based Semi-Interpenetrating Network Membranes for Fuel Cells
In the present work, Semi-interpenetrating polymer networks (SIPN) based on polyethyleneimine (PEI) were synthesized and characterized, aiming their future application in fuel cell devices. The membranes were acidified by two methods: (i) absorption of H 3 PO 4 from aqueous solutions and (ii) sulfon...
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| Published in | ECS transactions Vol. 58; no. 1; pp. 1153 - 1163 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
01.01.2013
|
| Online Access | Get full text |
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| Summary: | In the present work, Semi-interpenetrating polymer networks (SIPN) based on polyethyleneimine (PEI) were synthesized and characterized, aiming their future application in fuel cell devices. The membranes were acidified by two methods: (i) absorption of H
3
PO
4
from aqueous solutions and (ii) sulfonation, forming covalently bonded –SO
3
H. The thermal stability exhibited by the SIPN membranes, above 270
o
C, is sufficient for their application in PEMFC and the membranes doped with H
3
PO
4
at 20% show higher conductivity values (of about 0.08 Ω
-1
cm
-1
) than those obtained for the best sulfonated sample (10
-3
Ω
-1
cm
-1
). |
|---|---|
| ISSN: | 1938-5862 1938-6737 |
| DOI: | 10.1149/05801.1153ecst |