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Re-envisioning a sustainable hydrogen energy economy

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URFCs: main technical challenges<br />

• Design of bifunctional oxygen electrodes<br />

• Increasing roundtrip <strong>energy</strong> efficiency<br />

• Extending lifetime<br />

• Stack design<br />

• URFC <strong>energy</strong> storage system design<br />

• Lowering unit costs<br />

Slide 56

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