In:
Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 10, No. 17 ( 2022), p. 9693-9706
Kurzfassung:
Herein, we report a series of oligomeric chain extender-derived AEMs (QPP- b -PSK- w -TMA) with increased molecular weights. The QPP- b -PSK- w -TMA membranes showed excellent polymer main-chain stability as well as outstanding hydroxide conductivity, 129 mS cm −1 at 80 °C, which is 1.6 times higher than that of FAA-3, moreover, the QPP- b -PSK- w -TMA also exhibited remarkable thermally stable rheological properties originating from the main chain structure. Using the QPP- b -PSK-3.5-TMA membrane, we demonstrated that a high performance low platinum group metal (PGM)-loaded AEMFC showed a high specific power of 4.9 W mg PGM −1 , which is the highest value among those reported for the state-of-the-art AEMFCs with PGM-based electrodes. In addition, an AEMWE with the QPP- b -PSK-3.5-TMA membrane showed a high performance of 4.0 A cm −2 at 1.9 V under 90 °C and durable performance with a low degradation rate of 1.2 mV h −1 for 100 h despite the use of the NiFe catalyst under 80 °C.
Materialart:
Online-Ressource
ISSN:
2050-7488
,
2050-7496
Sprache:
Englisch
Verlag:
Royal Society of Chemistry (RSC)
Publikationsdatum:
2022
ZDB Id:
2702232-8
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