Encapsulation of Co/Co3O4 hetero-nanoparticles within the inner tips of N-doped carbon nanotubes: Engineering Mott-Schottky nanoreactors for efficient bifunctional oxygen electrocalysis toward flexible zinc-air batteries
文献类型：期刊论文
| 作者 | Zhang, Binbin5; Lu, Tingyu5; Ren, Yiping5; Huang, Longzhen5; Pang, Huan6; Zhao, Qun1; Tian, Shu1; Yang, Jun2,4; Xu, Lin5; Tang, Yawen5 |
| 刊名 | Chemical Engineering Journal
 |
| 出版日期 | 2022-11-15 |
| 卷号 | 448 |
| 关键词 | Carbon nanotubes - Charge transfer - Cobalt compounds - Electrocatalysis - Electrocatalysts - Electrolytic reduction - Heterojunctions - Iridium compounds - Metal nanoparticles - Oxygen - Platinum compounds - Potassium hydroxide - Ruthenium compounds - Zinc air batteries |
| ISSN号 | 13858947 |
| DOI | 10.1016/j.cej.2022.137709 |
| 英文摘要 | The development of economical, efficient and durable bifunctional electrocatalysts for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is of paramount importance for the substantial advancement of flexible and rechargeable metal-air batteries. The delicate manipulation of metal/semiconductor heterointerfaces represents a powerful leverage to boost the electrocatalytic performance due to the Mott-Schottky effect. Herein, we demonstrate a typical Mott-Schottky electrocatalyst by ingeniously encasing Co/Co3O4 hetero-nanoparticles within the inner tips of N-doped carbon nanotubes (abbreviated as Co/Co3O4@N-CNTs hereafter) through a facile and scalable hydrogel-bridged pyrolysis strategy. Experimental and theoretical findings collectively manifest that the spontaneous charge redistribution at the Co/Co3O4 heterointerfaces is essential to promote the charge transfer capability, lower down the reaction barriers for oxygen electrocatalysis, and ultimately boost the intrinsic activities. Accordingly, the well-designed Co/Co3O4@N-CNTs exhibit admirable ORR and OER activities and long-term robustness in KOH medium, exceeding the commercial Pt/C and RuO2 benchmarks, respectively. Furthermore, the Co/Co3O4@N-CNTs-assembled flexible all-solid-state zinc-air battery displays a high power density, remarkable rate capability, excellent rechargeablity and outstanding mechanical flexibility even under severe deformations, predicting the great potentials in diverse next-generation wearable electronic devices. The rationale of the construction of Mott-Schottky heterojunctions may provide an innovative and instructive avenue to design diversified energy nanomaterials. 漏 2022 Elsevier B.V. |
| 学科主题 | Doping (Additives) |
| 项目编号 | This work was financially supported by National Natural Science Foundation of China ( 21972068 and 21875112 ), Nanjing IPE Institute of Green Manufacturing Industry, and Beijing Natural Science Foundation (No. Z200012 ). |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61313]  |
| 作者单位 | 1.College of Chemistry and Chemical Engineering, Nantong University, Nantong; 226019, China 2.Nanjing IPE Institute of Green Manufacturing Industry, Nanjing; 211100, China 3.State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou; 570228, China 4.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 5.School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing; 210023, China 6.School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou; 225009, China |
| 推荐引用方式 GB/T 7714 | Zhang, Binbin,Lu, Tingyu,Ren, Yiping,et al. Encapsulation of Co/Co3O4 hetero-nanoparticles within the inner tips of N-doped carbon nanotubes: Engineering Mott-Schottky nanoreactors for efficient bifunctional oxygen electrocalysis toward flexible zinc-air batteries[J]. Chemical Engineering Journal,2022,448. |
| APA | Zhang, Binbin.,Lu, Tingyu.,Ren, Yiping.,Huang, Longzhen.,Pang, Huan.,...&Tian, Xinlong.(2022).Encapsulation of Co/Co3O4 hetero-nanoparticles within the inner tips of N-doped carbon nanotubes: Engineering Mott-Schottky nanoreactors for efficient bifunctional oxygen electrocalysis toward flexible zinc-air batteries.Chemical Engineering Journal,448. |
| MLA | Zhang, Binbin,et al."Encapsulation of Co/Co3O4 hetero-nanoparticles within the inner tips of N-doped carbon nanotubes: Engineering Mott-Schottky nanoreactors for efficient bifunctional oxygen electrocalysis toward flexible zinc-air batteries".Chemical Engineering Journal 448(2022). |
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