Knowledge Management System Of Institute of process engineering,CAS
| Waste to wealth: Defect-rich Ni-incorporated spent LiFePO4 for efficient oxygen evolution reaction | |
| Cui, Baihua1; Liu, Chang2; Zhang, Jinfeng2; Lu, Jijun3; Liu, Siliang2; Chen, Fangshuai2; Zhou, Wei4; Qian, Guoyu3; Wang, Zhi3; Deng, Yida2; Chen, Yanan2; Hu, Wenbin1,2 | |
| 2021-06-01 | |
| Source Publication | SCIENCE CHINA-MATERIALS
 |
| ISSN | 2095-8226 |
| Pages | 9 |
| Abstract | The development of efficient strategies to recycle lithium-ion battery (LIB) electrode materials is an important yet challenging goal for the sustainable management of battery waste. This work reports a facile and economically efficient method to convert spent cathode material, LiFePO4, into a high-performance NiFe oxy/hydroxide catalyst for the oxygen evolution reaction (OER). Herein, Ni-LiFePO4 is synthesized via the wetness impregnation method and further evolves into defect-rich NiFe oxy/hydroxide nanosheets during the OER. The introduction of the Ni promoter together with in situ evolution strengthens the electronic interactions among the metal sites and creates an abundance of defects. Experimentally, the evolved Ni-LiFePO4 delivers a low overpotential of 285 mV at 10 mA cm(-2) and a small Tafel slope of 45 mV dec(-1), outperforming pristine LiFePO4 and is even superior to the benchmark catalyst RuO2. Density functional theory (DFT) calculations reveal that the introduction of Ni effectively activates Fe sites by optimizing the free energy of the *OOH intermediate and that the abundance of oxygen defects facilitates the oxygen desorption step, synergistically enhancing the OER performance of LiFePO4. As a green and versatile method, this is a new opportunity for the scalable fabrication of excellent electrocatalysts based on spent cathode materials. |
| Keyword | functional conversion spent cathode LiFePO4 oxygen evolution reaction DFT calculation |
| DOI | 10.1007/s40843-021-1682-0 |
| Language | 英语 |
| WOS Keyword | LI-ION BATTERIES ; SURFACE ; ELECTROCATALYSTS ; LITHIUM ; RECONSTRUCTION ; DELITHIATION ; GENERATION ; HYDROXIDES ; NANOSHEETS ; PHOSPHATE |
| Funding Project | National Natural Science Foundation of China[91963113] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| Funding Organization | National Natural Science Foundation of China |
| WOS ID | WOS:000657589000001 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/49005 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhou, Wei; Chen, Yanan; Hu, Wenbin |
| Affiliation | 1.Tianjin Univ, Joint Sch Natl Univ Singapore, Int Campus Tianjin Univ, Int Campus, Fuzhou 350207, Peoples R China 2.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300372, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 4.Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China |
| Recommended Citation GB/T 7714 | Cui, Baihua,Liu, Chang,Zhang, Jinfeng,et al. Waste to wealth: Defect-rich Ni-incorporated spent LiFePO4 for efficient oxygen evolution reaction[J]. SCIENCE CHINA-MATERIALS,2021:9. |
| APA | Cui, Baihua.,Liu, Chang.,Zhang, Jinfeng.,Lu, Jijun.,Liu, Siliang.,...&Hu, Wenbin.(2021).Waste to wealth: Defect-rich Ni-incorporated spent LiFePO4 for efficient oxygen evolution reaction.SCIENCE CHINA-MATERIALS,9. |
| MLA | Cui, Baihua,et al."Waste to wealth: Defect-rich Ni-incorporated spent LiFePO4 for efficient oxygen evolution reaction".SCIENCE CHINA-MATERIALS (2021):9. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment