Interface channels accelerating ion transport through alkaline earth metal carbonate - Gd0.1Ce0.9O1.95 heterostructure |
| |
| Affiliation: | 1. Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/Energy Storage Research Center, School of Energy and Environment, Southeast University, No. 2 Si Pai Lou, Nanjing, Jiangsu 210096, PR China;2. College of Material Science and Technology, Southeast University, No. 2 Si Pai Lou, Nanjing, Jiangsu 210096, PR China;3. Engineering Research Center of Nano-Geo Materials of Ministry of Education, Department of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, China;1. Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal;2. MARETEC/DEM - Marine, Environment and Technology Centre, LARSyS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal;3. Center IN+, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal;1. School of Physics and Technology, University of Jinan, Jinan 250022, Shandong Province, PR China;2. School of Mathematics and Physics, Anhui University of Technology, Ma''anshan 243032, Anhui Province, PR China;1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education, School of Energy and Power Engineering, Chongqing University;2. State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China;1. Federal Scientific Agroengineering Center VIM, 1st Institutsky Proezd, 5, 109428, Moscow, Russia;2. Russian University of Transport, 127994, Moscow, Russia;1. Key Laboratory of Intelligent Manufacturing Technology, Ministry of Education, College of Engineering, Shantou University, 243 Daxue Road, Shantou 515063, China;2. State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China |
| |
| Abstract: | Designing the interface proton channel between different phases to accelerate the proton ion transport is an effective way to realize the high proton conduction for the low-temperature ceramic fuel cell (CFC). Cerium based materials coated with molten carbonate has been widely demonstrated for high performance CFCs. Here, we prepared alkaline earth metal carbonate - Gd0.1Ce0.9O1.95 (GDC) heterostructure composites in various compositions by precipitation method using NH4HCO3 and NaHCO3 as the deposit. The samples prepared using NH4HCO3 as the electrolyte, the cell can deliver an even higher power output of 811 mW cm?2. The results are much higher than that reported in the literature for the GDC electrolyte fuel cells. The ion conduction on the interface between GDC and solid carbonate particles is proposed. The ionic conductivity is determined to be 0.13 S cm?1 at 500 °C; while GDC as reported in literature is 0.005 S cm?1 at the same temperature. This proposed solid carbonate-GDC heterostructure method has succeeded in enhancing ionic conductivity and the CFC performance, which presents a new way to develop high proton conducting materials and advanced ceramic fuel cells at low temperatures (<550 °C). |
| |
| Keywords: | Ceramic fuel cell (CFC) Solid carbonate Interface High proton conducting Solid carbonate-GDC heterostructure |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
