所属单位：理学院

发表刊物：Journal of Electroanalytical Chemistry

关键字：BZCYYb electrolyte; Proton conducting; Micro-tubular cells; Asymmetric structure; Concentration polarization.

摘要：A simple phase-inversion method is employed to achieve anode-supported micro-tubular solid oxide fuel cells based on BaZr0.1Ce0.7Y0.1Yb0.1O3−δ proton conducting electrolyte. The whole-cell configuration is Ni-BaZr0.1Ce0.7Y0.1Yb0.1O3−δ | BaZr0.1Ce0.7Y0.1Yb0.1O3−δ | La0.75Sr0.25MnO3−δ-Sm0.2Ce0.8O2-δ. The novel asymmetric structure of “sponge-like micro-pores electrode | homogeneous porous functional layer” is obtained. The results achieved in the present work include: i) the electrodes reveal the single phase collected by the powder X-Ray Diffractometer analysis; ii) the single cell exhibits uniform distribution of micro sponge-like pores electrodes are well-adhered to the dense, crack-free 12 μm thick electrolyte layer observed by Scanning Electron Microscope; iii) the cells show excellent electrochemical performance with the maximum power densities of 1.01, 0.89, 0.75 and 0.58 W·cm-2 at 750, 700, 650 and 600 °C, respectively, characterized by Electrochemical Impedance Spectroscopy; iv) the cell design especially reveal very low concentration polarization values (0.014–0.019 Ω·cm2 at 750–600 °C).

备注：Mingfei Liu, Georgia Institute of Technology Ben H. Rainwater, Georgia Institute of Technology Yaohui Bai, South China University of Technology Yuan Dong, Xi’an University of Posts & Telecommunications

合写作者：董元,Mingfei Liu,Ben H. Rainwater,Yaohui Bai

第一作者：王占民,李隆,陈长城

论文类型：期刊论文

卷号：844 (2019) 49-57

ISSN号：1572-6657

是否译文：否

发表时间：2019-05-10