One‐pot synthesis of silver‐modified sulfur‐tolerant anode for SOFCs with an expanded operation temperature window |
| |
| Authors: | Jifa Qu Wei Wang Tao Yang Yubo Chen Zongping Shao |
| |
| Affiliation: | 1. State Key Laboratory of Materials‐Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing Tech University, Nanjing, China;2. Dept. of Chemical Engineering, Curtin University, Perth, WA, Australia;3. Dept. of Mechanical Engineering, University of Aveiro, Aveiro, Portugal;4. Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, China |
| |
| Abstract: | To develop solid oxide fuel cells (SOFCs) capable of operating on sulfur‐containing practical fuels at intermediate temperatures, further improvement of the sulfur tolerance of a Ni + BaZr0.4Ce0.4Y0.2O3‐δ (BZCY) anode is attempted through the addition of some metal modifiers (Fe, Co, and Ag) by a one‐pot synthesis approach. The effects of these modifiers on the electrical conductivity, morphology, sulfur tolerance, and electrochemical activity of the anode are systematically studied. As a result, the cell with Ag‐modified Ni + BZCY anode demonstrates highest power output when operated on 1000 ppm H2S‐H2 fuel. Furthermore, the Ag‐modified anode displays much better stability than Ni + BZCY with 1000 ppm H2S‐H2 fuel at 600°C. These results suggest that the addition of Ag modifier into Ni + BZCY is a promising and efficient method for improving the sulfur tolerance of SOFCs. © 2017 American Institute of Chemical Engineers AIChE J, 63: 4287–4295, 2017 |
| |
| Keywords: | solid oxide fuel cells sulfur nickel‐based anode metal modifiers water storage capability |
|
|
