A strategy of tailoring stable electrolyte material for high performance proton-conducting solid oxide fuel cells (SOFCs)

作者：Tao, Zetian; Zhang, Qinfang; Xi, Xinguo; Hou, Guihua; Bi, Lei^*

来源：Electrochemistry Communications, 2016, 72: 19-22.

DOI：10.1016/j.elecom.2016.08.019

• BaCeO3
• Cell performance
• Proton conductor
• Solid oxide fuel cell
• Synthesis strategy

A facile strategy was proposed to synthesize Nb-containing BaCeO3-based material, which is a potential electrolyte for proton-conducting solid oxide fuel cells (SOFCs), via a wet chemical route while the conventional synthesis of Nb-containing oxides relied on the solid state reaction method due to the unavailability of suitable Nb-precursors such as Nb-nitrates resulting in a less desirable fuel cell performance when used as an electrolyte. The BaCe0.7Nb0.1Y0.2O3-delta (BCNY) electrolyte material in this study persisted a good chemical stability against CO2 and exhibited good performance in the fuel cell application. The fuel cell with BCNY electrolyte film showed a high performance of 533 mW cm(-2) at 700 degrees C. This cell performance based on BCNY electrolyte was superior to that of many stable modified BaCeO3-based proton-conducting SOFCs where the electrolytes were tailored by other strategies. This result indicated that the strategy presented in this study could be an effective way to prepare a stable electrolyte for high performance proton-conducting SOFCs, which could advance the development of proton-conducting SOFCs.

• 出版日期2016-11
• 单位盐城工学院