Oxygen-Reduction Reaction on Preferred Oriented Gd0.1Ce0.9O2-delta Films
文献类型：期刊论文
| 作者 | Zhao, Zhe1,2; Shang, Lei1,2; Wu, Weiming1; Huang, Zhidong1,2; Qi, Huiying1,2; Cheng, Mojie1 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2018-04-19 |
| 卷号 | 122期号:15页码:8396-8405 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.8b01202 |
| 文献子类 | Article |
| 英文摘要 | Oxygen-reduction reaction (ORR) on Gd0.1Ce0.9O2-delta (GDC) films with preferential orientations of [100] and [111] have been investigated by using electrochemical impedance spectra combined with direct current (DC) bias. Without DC bias, apparent activation energy for ORR is 0.43 eV on GDC(100) and 1.37 eV on GDC(111). When negative bias increases from 0 to 0.250 V, apparent activation energy for ORR on either GDC(100) or (111) initially increases, attains the maximums of 1.6 eV on GDC(100) and 1.65 eV on GDC(111) and then decreases linearly with the slope of -2.18 eV/V on GDC(100) and -5.17 eV/V on GDC(111). On GDC(100), reaction rate of the key rate-determining step (RDS) exhibits oxygen pressure-dependent exponents of 0.439 under open circuit voltage (OCV) conditions and 0.379 under 0.150 V negative bias, whereas on GDC(111), reaction rate of the key RDS exhibits oxygen pressure-dependent exponents of 0.397 under OCV conditions and 0.177 under 0.150 V negative bias. |
| WOS关键词 | OXIDE FUEL-CELLS ; DEFINED SURFACE PLANES ; GADOLINIA DOPED CERIA ; ELECTRONIC-STRUCTURE ; RAMAN-SPECTROSCOPY ; CEO2 NANOCRYSTALS ; EXCHANGE ; OXIDATION ; KINETICS ; CATHODE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000430896500040 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167144]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Cheng, Mojie |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cells, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhe,Shang, Lei,Wu, Weiming,et al. Oxygen-Reduction Reaction on Preferred Oriented Gd0.1Ce0.9O2-delta Films[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(15):8396-8405. |
| APA | Zhao, Zhe,Shang, Lei,Wu, Weiming,Huang, Zhidong,Qi, Huiying,&Cheng, Mojie.(2018).Oxygen-Reduction Reaction on Preferred Oriented Gd0.1Ce0.9O2-delta Films.JOURNAL OF PHYSICAL CHEMISTRY C,122(15),8396-8405. |
| MLA | Zhao, Zhe,et al."Oxygen-Reduction Reaction on Preferred Oriented Gd0.1Ce0.9O2-delta Films".JOURNAL OF PHYSICAL CHEMISTRY C 122.15(2018):8396-8405. |
入库方式： OAI收割
来源：大连化学物理研究所
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