Enhanced activities of nano-CeO2-delta@430L composites by zirconium doping for hydrogen electro-oxidation in solid oxide fuel cells
文献类型：期刊论文
| 作者 | Ji, Xiaona1; Liu, Xuejiao1; Tong, Xiaofeng1; Luo, Ting1; Wu, Hao1; Meng, Xie1; Zhan, Zhongliang1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2016-07-13 |
| 卷号 | 41期号:26页码:11331-11339 |
| 关键词 | Ceria-zirconia Nanostructures Solid oxide fuel cells Anodes Hydrogen electro-oxidation |
| 英文摘要 | Ceria-zirconia solid solution nanoparticulates, Ce1-xZrxO2-delta (x = 0, 0.2, 0.3, 0.4, 0.6, 0.8 and 1.0), are impregnated into the porous 430L stainless steel scaffolds and evaluated as the anode catalysts for solid oxide fuel cells (SOFCs). Combined analyses of X-ray diffraction and Raman scattering reveal the fluorite cubic (c) structure up to x <= 0.3 transforms to a mixture of the cubic and metastable tetragonal (t '') phases for 0.4 <= x <= 0.8, with the onset of tetragonal distortions at x = 0.8. Temperature-programmed reduction in H-2 indicates that doping Zr4+ into the ceria lattice could improve the oxygen storage capacity. None-theless, the charge transfer process within the bulk Ce1-xZrxO2-delta or across the interfaces of Ce1-xZrxO2-delta vertical bar YSZ becomes increasingly sluggish at x >= 0.3. The two opposite effects yield the smallest anode polarization resistances at x = 0.3, e.g., 0.08 +/- 0.01 Omega cm(2) for Ce0.7Zr0.3O2-delta versus 0.24 +/- 0.02 Omega cm(2) for CeO2-delta or 0.26 +/- 0.04 Omega cm(2) for Ce0.4Zr0.6O2-delta at 800 degrees C. Furthermore, thin YSZ electrolyte fuel cells with impregnated La0.6Sr0.4Fe0.9Sc0.1O3-delta - YSZ cathode supports produce peak power densities of 1.24 W cm(-2) at 800 degrees C for nano-Ce0.7Zr0.3O2-delta@A430L anodes, approximately 80% higher than 0.67-0.70 W cm(-2) on nano-CeO2-delta@430L or nano-Ce0.4Zr0.6O2-delta@430L anodes. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Energy & Fuels |
| 关键词[WOS] | OXYGEN STORAGE CAPACITY ; CERIA-ZIRCONIA ; MIXED OXIDES ; SOFC ANODES ; NANOCRYSTALLINE CERIA ; RAMAN-SPECTRA ; CATALYSIS ; OXIDATION ; ELECTRODES ; SURFACES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000378659100030 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22945]  |
| 专题 | 上海硅酸盐研究所_能量转换材料重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci SICCAS, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Xiaona,Liu, Xuejiao,Tong, Xiaofeng,et al. Enhanced activities of nano-CeO2-delta@430L composites by zirconium doping for hydrogen electro-oxidation in solid oxide fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2016,41(26):11331-11339. |
| APA | Ji, Xiaona.,Liu, Xuejiao.,Tong, Xiaofeng.,Luo, Ting.,Wu, Hao.,...&Zhan, Zhongliang.(2016).Enhanced activities of nano-CeO2-delta@430L composites by zirconium doping for hydrogen electro-oxidation in solid oxide fuel cells.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,41(26),11331-11339. |
| MLA | Ji, Xiaona,et al."Enhanced activities of nano-CeO2-delta@430L composites by zirconium doping for hydrogen electro-oxidation in solid oxide fuel cells".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41.26(2016):11331-11339. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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