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Issue 12, 2012
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A new energy conversion technology joining electrochemical and physical principles

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Abstract

We report a new energy conversion technology joining electrochemical and physical principles. This technology can realize the fuel cell function but built on a different scientific principle. The device consists of a single component which is a homogenous mixture of ceria composite with semiconducting materials, e.g. LiNiCuZn-based oxides. The test devices with hydrogen and air operation delivered a power density of 760 mW cm−2 at 550 °C. The device has demonstrated a multi-fuel flexibility and direct alcohol and biogas operations have delivered 300–500 mW cm−2 at the same temperature. Device physics reveal a key principle similar to solar cells realizing the function based on an effective separation of electronic and ionic conductions and phases within the single-component. The component material multi-functionalities: ion and semi-conductions and bi-catalysis to H2 or alcohol (methanol and ethanol) and air (O2) enable this device realized as a fuel cell.

Graphical abstract: A new energy conversion technology joining electrochemical and physical principles

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Article information


Submitted
03 Dec 2011
Accepted
31 Mar 2012
First published
03 May 2012

RSC Adv., 2012,2, 5066-5070
Article type
Communication

A new energy conversion technology joining electrochemical and physical principles

B. Zhu, R. Raza, Q. Liu, H. Qin, Z. Zhu, L. Fan, M. Singh and P. Lund, RSC Adv., 2012, 2, 5066
DOI: 10.1039/C2RA01234K

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