@inproceedings{8fa6cc17f837492f8cb98ca5ff53fbb6,
title = "High performance solid oxide electrolysis cells with hierarchically porous Ni-YSZ electrode",
abstract = "In solid oxide electrolysis cells (SOECs), the microstructure of the fuel electrode (Ni-YSZ) has a great influence on the electrochemical performance of cells. In this study, novel hierarchical Ni-YSZ electrode with open channel pores has been fabricated by freeze-drying tape casting (FDTC). The microstructure of the Ni-YSZ electrode was characterized using SEM, mercury intrusion, 3D X-ray microscopy and gas permeability, showing that Ni-YSZ electrode fabricated by FDTC has large porosity and low tortuosity factor, which are beneficial for gas transport. SOECs with the Ni-YSZ electrode fabricated from FDTC display excellent performance (-0.95 A cm-2 with 1.3 V at 750 °C) in the electrolysis mode, which is twice of that with the conventional sponge-like Ni-YSZ electrode fabricated from dry-pressing (DP). Furthermore, hierarchically porous Ni-YSZ electrode is more obvious in the electrolysis mode than the fuel cell mode, probably due to the slower diffusion of H2O and CO2 than H2.",
author = "Libin Lei and Yu Chen and Yanxiang Zhang and Tong Liu and Yao Wang and Fanglin Chen",
note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; 15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 ; Conference date: 23-07-2017 Through 28-07-2017",
year = "2017",
month = may,
day = "30",
doi = "10.1149/07801.3217ecst",
language = "英语",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "1",
pages = "3217--3228",
editor = "Singhal, \{S. C.\} and T. Kawada",
booktitle = "ECS Transactions",
address = "美国",
edition = "1",
}