An Aurivillius Oxide Based Cathode with Excellent CO2 Tolerance for Intermediate-Temperature Solid Oxide Fuel Cells

Yinlong Zhu; Wei Zhou; Yubo Chen; Zongping Shao

doi:10.1002/anie.201604160

An Aurivillius Oxide Based Cathode with Excellent CO2 Tolerance for Intermediate-Temperature Solid Oxide Fuel Cells

Angew Chem Int Ed Engl. 2016 Jul 25;55(31):8988-93. doi: 10.1002/anie.201604160. Epub 2016 Jun 13.

Authors

Yinlong Zhu¹, Wei Zhou², Yubo Chen¹, Zongping Shao^{3

4}

Affiliations

¹ Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China.
² Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China. [email protected].
³ Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), State Key Laboratory of Materials-Oriented Chemical Engineering, College of Energy, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China. [email protected].
⁴ Department of Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia. [email protected].

PMID: 27294808
DOI: 10.1002/anie.201604160

Abstract

The Aurivillius oxide Bi2 Sr2 Nb2 MnO12-δ (BSNM) was used as a cobalt-free cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). To the best of our knowledge, the BSNM oxide is the only alkaline-earth-containing cathode material with complete CO2 tolerance that has been reported thus far. BSNM not only shows favorable activity in the oxygen reduction reaction (ORR) at intermediate temperatures but also exhibits a low thermal expansion coefficient, excellent structural stability, and good chemical compatibility with the electrolyte. These features highlight the potential of the new BSNM material as a highly promising cathode material for IT-SOFCs.

Keywords: Aurivillius oxides; cathodes; electrochemistry; oxygen reduction reaction; solid oxide fuel cells.

Publication types

Research Support, Non-U.S. Gov't