| Phosphate-Modified NiCo2O4@NiCoS Heterointerface Boosting Electrochemical Performance for Supercapacitors | |
| Qiao, Rong-Hao1; Zhang, Bin1; Wang, Si-Qi1; Luo, Xue-Mei2; Zhang, Guang-Ping2 | |
| 通讯作者 | Zhang, Bin(zhangb@atm.neu.edu.cn) |
| 2024-09-10 | |
| 发表期刊 | ACS APPLIED ENERGY MATERIALS
 |
| ISSN | 2574-0962 |
| 卷号 | 7期号:18页码:8014-8024 |
| 摘要 | Supercapacitors have attracted great interest in the field of energy storage devices owing to their high power density for quick charging and discharging. Nickel-cobalt-based materials are credited as promising cathode materials due to their rich valence and high redox reversibility. However, the poor conductivity and slow reaction kinetics of the nickel-cobalt-based electrode materials caused unsatisfactory rate capability of the devices. In this work, a phosphate-modified nickel-cobalt-based material with a core-branched structure was designed and fabricated by combining electrochemical and hydrothermal methods, in which nickel cobalt oxide (NCO) acted as the core and nickel cobalt sulfide (NCS) acted as the branches. The active materials were fully employed due to the 3D skeleton of the core-branched structure, facilitating ion transfer. Meanwhile, the phosphate-modified interface between NCO and NCS enhanced the electron transfer inside the material and changed the ratios of Co2+/Co3+ and Ni2+/Ni3+, leading to excellent capacity and rate performance. The elaborate design of the structure makes the phosphate-modified NCO@NCS (P-NCO@NCS) electrode exhibit a high specific capacity of 1050 C g(-1) at 2 A g(-1) and an excellent capacity retention of 86.4% when the current density is increased to 30 A g(-1). Our findings proposed an essential role of phosphate modification of the heterointerface, providing a strategy to design a structure for highly conductive electrodes. |
| 关键词 | Core-branched heterostructure Phosphate-modifying Nickel-cobalt-based material Supercapacitor Rate capability |
| 资助者 | National Natural Science Foundation of China |
| DOI | 10.1021/acsaem.4c01735 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[51971060] ; National Natural Science Foundation of China[51671050] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| WOS类目 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:001310552100001 |
| 出版者 | AMER CHEMICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/189764 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhang, Bin |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiao, Rong-Hao,Zhang, Bin,Wang, Si-Qi,et al. Phosphate-Modified NiCo2O4@NiCoS Heterointerface Boosting Electrochemical Performance for Supercapacitors[J]. ACS APPLIED ENERGY MATERIALS,2024,7(18):8014-8024. |
| APA | Qiao, Rong-Hao,Zhang, Bin,Wang, Si-Qi,Luo, Xue-Mei,&Zhang, Guang-Ping.(2024).Phosphate-Modified NiCo2O4@NiCoS Heterointerface Boosting Electrochemical Performance for Supercapacitors.ACS APPLIED ENERGY MATERIALS,7(18),8014-8024. |
| MLA | Qiao, Rong-Hao,et al."Phosphate-Modified NiCo2O4@NiCoS Heterointerface Boosting Electrochemical Performance for Supercapacitors".ACS APPLIED ENERGY MATERIALS 7.18(2024):8014-8024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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