Issue 20, 2014

Functional semiconductor–ionic composite GDC–KZnAl/LiNiCuZnOx for single-component fuel cell

Abstract

The research activities on single-component fuel cells (SCFCs) have opened new doors for keeping ahead with two major areas of focus: improvement of SCFC performances by contributing new materials, and scientific understanding of the SCFC nature and operation mode. The present work reports the exploitation of new material composed of the Gd doped ceria-KAlZn-oxide (GDC–KAZ) and the LiNiCuZn-oxide (LNCZ), combining ionic and semiconducting properties for SCFCs. A new method is first used through an internal electron–hole redox cycle resulting in no net electrons to avoid ceria electronic conduction problems thus to develop an excellent GDC–KAZ electrolyte. Its ionic conductivity, 0.08 S cm−1 at 600 °C, is ten times higher than that of GDC. The SCFC using the GDC–KAZ–LNCZ materials exhibits a remarkable electrochemical performance of 628 mW cm−2 at 580 °C, significantly higher than that of conventional three-component (anode/electrolyte/cathode) fuel cells. The results bring about a new cost-effective and robust system with significant scientific and economic consequences for the fuel cell field.

Graphical abstract: Functional semiconductor–ionic composite GDC–KZnAl/LiNiCuZnOx for single-component fuel cell

Article information

Article type
Paper
Submitted
19 Dec 2013
Accepted
22 Jan 2014
First published
27 Jan 2014

RSC Adv., 2014,4, 9920-9925

Functional semiconductor–ionic composite GDC–KZnAl/LiNiCuZnOx for single-component fuel cell

B. Zhu, L. Fan, Y. Zhao, W. Tan, D. Xiong and H. Wang, RSC Adv., 2014, 4, 9920 DOI: 10.1039/C3RA47783E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements