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Title: A passive fuel cell fed with an electrically rechargeable liquid fuel
Authors: Shi, X 
Dai, Y 
Esan, OC 
Huo, X 
An, L 
Zhao, T
Issue Date: 20-Oct-2021
Source: ACS applied materials and interfaces, 20 Oct. 2021, v. 13, no. 41, p. 48795-48800
Abstract: Passive fuel cells, using diffusion and natural convection for fuel delivery, are regarded as promising candidates for powering portable devices including mobile phones and laptops. However, the performance of passive fuel cells which employ typical liquid alcohol fuels are still limited, which thereby greatly hampered their commercialization progress. Recently, a novel concept named the electrically rechargeable liquid fuel (e-fuel), with its rechargeability, cost-effectiveness, and superior reactivity, has attracted increasing attention. In this study, a passive fuel cell using the liquid e-fuel and the ambient air for electricity production is designed and fabricated. This passive fuel cell is demonstrated to achieve a peak power density of 116.2 mW cm−2 along with a stable operation for over 350 h, exhibiting great prospect for future applications.
Keywords: E-fuel
Passive fuel cell
Current collector design
Power density
Long-term stability
Hydrogen evolution
Publisher: American Chemical Society
Journal: ACS applied materials and interfaces 
ISSN: 1944-8244
EISSN: 1944-8252
DOI: 10.1021/acsami.1c14505
Rights: © 2021 American Chemical Society
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
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