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High performance solid acid fuel cells through humidity stabilization

Boysen, Dane A. and Uda, Tetsuya and Chisholm, Calum R. I. and Haile, Sossina M. (2004) High performance solid acid fuel cells through humidity stabilization. Science, 303 (5654). pp. 68-70. ISSN 0036-8075. doi:10.1126/science.1090920.

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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_2PO_4 electrolyte.

Item Type:Article
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URLURL TypeDescription Information
Haile, Sossina M.0000-0002-5293-6252
Additional Information:© 2003 American Association for the Advancement of Science. Received for publication 28 August 2003. Accepted for publication 12 November 2003. Published Online November 20 2003. Supported by the NSF, Division of Materials Research, and the Office of Naval Research, Office of Electrochemical Power, Science, and Technology.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Issue or Number:5654
Record Number:CaltechAUTHORS:20131114-144131460
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42469
Deposited By: Jonathan Gross
Deposited On:18 Nov 2013 20:28
Last Modified:10 Nov 2021 16:23

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