Affiliation:
1. Materials Science, California Institute of Technology, Pasadena, CA 91125, USA.
Abstract
Although they hold the promise of clean energy, state-of-the-art fuel cells based on polymer electrolyte membrane fuel cells are inoperable above 100°C, require cumbersome humidification systems, and suffer from fuel permeation. These difficulties all arise from the hydrated nature of the electrolyte. In contrast, “solid acids” exhibit anhydrous proton transport and high-temperature stability. We demonstrate continuous, stable power generation for both H
2
/O
2
and direct methanol fuel cells operated at ∼250°C using a humidity-stabilized solid acid CsH
2
PO
4
electrolyte.
Publisher
American Association for the Advancement of Science (AAAS)
Reference11 articles.
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