A facile method of selective dissolution for preparation of Co3O4/LaCoO3 as a bifunctional catalyst for Al/Zn-air batteries
文献类型：期刊论文
| 作者 | Yan, Shanshan; Wan, Liyang; Xue, Yejian; Wang, Yan; Shao, Guangjie; Liu, Zhaoping |
| 刊名 | SUSTAINABLE ENERGY & FUELS
 |
| 出版日期 | 2021 |
| 卷号 | 5期号:4页码:995-1002 |
| 英文摘要 | Perovskites are promising catalysts for metal-air batteries because of their excellent intrinsic catalytic activities. However, low specific surface area and fewer surface defects lead to low catalytic activities in the oxygen reduction/evolution reaction (ORR/OER). Herein, the Co3O4/LaCoO3 composite material is prepared by a selective dissolution method. The onset and half-wave potentials of the Co3O4/LaCoO3 hybrid material are 0.895 and 0.640 V during the ORR process. It also exhibits a small overpotential of 503 mV at a current density of 10 mA cm(-2) for the OER process. What's more, the Zn-air battery that uses the Co3O4/LaCoO3 hybrid material can reach a maximum power density of 155.7 mW cm(-2), which is larger than that of the original LaCoO3 (137.8 mW cm(-2)). In addition, the potential difference of this battery with the Co3O4/LaCoO3 sample increased by 22 mV after 100 charge-discharge cycles, which is much lower than that of Zn-air batteries with the LaCoO3 and Co3O4 samples (52 and 26 mV). The above results illustrate that improved bifunctional catalytic properties of the Co3O4/LaCoO3 hybrid material can be associated with the porous structure, large surface area, weak Co-O bond in the lattice and more surface defects on the surface. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22178]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Xue, YJ 2.Liu, ZP (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Graphene Technol & Applicat Zhejiang Prov, Adv Li Ion Battery Engn Lab, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yan, Shanshan,Wan, Liyang,Xue, Yejian,et al. A facile method of selective dissolution for preparation of Co3O4/LaCoO3 as a bifunctional catalyst for Al/Zn-air batteries[J]. SUSTAINABLE ENERGY & FUELS,2021,5(4):995-1002. |
| APA | Yan, Shanshan,Wan, Liyang,Xue, Yejian,Wang, Yan,Shao, Guangjie,&Liu, Zhaoping.(2021).A facile method of selective dissolution for preparation of Co3O4/LaCoO3 as a bifunctional catalyst for Al/Zn-air batteries.SUSTAINABLE ENERGY & FUELS,5(4),995-1002. |
| MLA | Yan, Shanshan,et al."A facile method of selective dissolution for preparation of Co3O4/LaCoO3 as a bifunctional catalyst for Al/Zn-air batteries".SUSTAINABLE ENERGY & FUELS 5.4(2021):995-1002. |
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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