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Fuel cells: Hydrogen induced insulation

Coupling high ionic and low electronic conductivity in the electrolyte of low-temperature solid-oxide fuel cells remains a challenge. Now, the electronic conductivity of a perovskite electrolyte, which has high proton conductivity, is shown to be heavily suppressed when exposed to hydrogen, leading to high fuel cell performance.

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Figure 1: Electronically insulated proton-conducting perovskite for use as the electrolyte in a SOFC.


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Correspondence to Zongping Shao.

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Zhou, W., Shao, Z. Fuel cells: Hydrogen induced insulation. Nat Energy 1, 16078 (2016).

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