What question did this study set out to answer?

To construct organized ion-aggregating structures in alkaline polymer electrolytes that enhance hydroxide ion conductivity to levels competitive with acidic membranes.

October 17, 2013Energy & Environmental Science

Constructing ionic highway in alkaline polymer electrolytes

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To construct organized ion-aggregating structures in alkaline polymer electrolytes that enhance hydroxide ion conductivity to levels competitive with acidic membranes.
Screened optimal ion-aggregating configurations using coarse-grained molecular dynamics (CGMD) simulations.
Synthesized and experimentally evaluated a model membrane system using quaternary ammonia polysulfone (QAPS).
Characterized nanoscale ionic assembly and morphology via transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS).
Achieved hydroxide (OH−) conductivity greater than 0.1 S cm−1 at 80 °C with a moderate ion-exchange capacity of 1.0 mmol g−1.
Verified ordered ion channel assembly experimentally through TEM and SAXS matching theoretical structure factor calculations.

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Implication

Experimental and computational study demonstrates high hydroxide conductivity in structured alkaline polymer electrolytes, suggesting a design pathway for efficient nonprecious-metal fuel cells.

Cite This Study

Pan et al. (2013) studied this question.

synapsesocial.com/papers/69daa598615cc0c8eaa3c542 https://doi.org/10.1039/c3ee43275k

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Implication

Experimental and computational study demonstrates high hydroxide conductivity in structured alkaline polymer electrolytes, suggesting a design pathway for efficient nonprecious-metal fuel cells.

Constructing ionic highway in alkaline polymer electrolytes

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Discussion

Implication

Cite This Study

Constructing ionic highway in alkaline polymer electrolytes

Key Points

Discussion

Implication

Cite This Study

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