Cerium ion intercalated MnO2 nanospheres with high catalytic activity toward oxygen reduction reaction for aluminum-air batteries
文献类型：期刊论文
| 作者 | Xue, Yejian; Sun, Shanshan; Wang, Qin; Huang, Heran; Miao, He; Liu, Zhaoping |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2018 |
| 卷号 | 263页码:544-554 |
| 关键词 | Enhanced Electrocatalytic Activity Electrochemical Water Oxidation Manganese Oxide Nanoparticles Alkaline Media Reaction Orr Carbon Birnessite Electrode Nanostructures Spectroscopy |
| 英文摘要 | Manganese oxide is one of the most extensively studied electrocatalysts for oxygen reduction reaction (ORR) due to its high abundance and environmental friendliness. In this work, cerium ion intercalated birnessite-type manganese oxide (delta-MnO2) dispersed on carbon (Ce-MnO2/C) with high-efficient oxygen reduction reaction(ORR) electrocatalytic ability in alkaline media is prepared via facile aqueous reactions for the first time. The as-prepared catalyst shows morphology like quasi special nanospheres intertwined by plenty of nanorods just like knitting wool balls. Compared with MnO2/C, the onset and half-wave potential of 4.8% Ce-MnO2/C shift positively 27 and 57 mV, respectively, and are close to those of Pt/C. The oxygen reduction reaction occurring on 4.8% Ce-MnO2/C undergoes a 4-electron transfer pathway with the HO2- yield lee than 2%, which is much lower than that produced on Pt/C. The Ce-MnO2/C catalyst also exhibits excellent long-term stability with current retention of 96.4% after aging for 40000 s. The aluminum-air battery applying 4.8% Ce-MnO2/C as cathode catalyst gives out the peak power density of 348.8 mWcm(-2) in 4 M KOH aqueous solution. After more than 300-h discharging, the voltage degradation of 4.8% Ce-MnO2/C is only 2% per 100 h. In all, the excellent performance of the Ce-intercalated MnO2/C demonstrates its enormous potential as ORR catalyst in metal-air batteries. (c) 2018 Published by Elsevier Ltd. |
| 学科主题 | Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16816]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Xue, Yejian,Sun, Shanshan,Wang, Qin,et al. Cerium ion intercalated MnO2 nanospheres with high catalytic activity toward oxygen reduction reaction for aluminum-air batteries[J]. ELECTROCHIMICA ACTA,2018,263:544-554. |
| APA | Xue, Yejian,Sun, Shanshan,Wang, Qin,Huang, Heran,Miao, He,&Liu, Zhaoping.(2018).Cerium ion intercalated MnO2 nanospheres with high catalytic activity toward oxygen reduction reaction for aluminum-air batteries.ELECTROCHIMICA ACTA,263,544-554. |
| MLA | Xue, Yejian,et al."Cerium ion intercalated MnO2 nanospheres with high catalytic activity toward oxygen reduction reaction for aluminum-air batteries".ELECTROCHIMICA ACTA 263(2018):544-554. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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