{"title":"Hollow Octahedral Pr6O11-Mn2O3 Heterostructures for High-Performance Aqueous Zn-Ion Batteries","authors":"Qiang Liu, Guilan Fan, Yinxiang Zeng, Xiaotao Zhang, Deyan Luan, Yan Guo, Xiaojun Gu, Xiong Wen (David) Lou","doi":"10.1002/aenm.202402743","DOIUrl":null,"url":null,"abstract":"Mn-based oxides are broadly prospected cathode materials for aqueous Zn-ion batteries (AZIBs) due to their rich abundance, low cost, and plentiful valence states. However, the further development of Mn-based oxides is severely restricted by the dissolution of active materials and poor structural stability. Herein, hollow octahedral Pr<sub>6</sub>O<sub>11</sub>-Mn<sub>2</sub>O<sub>3</sub> (denoted as PrO-MnO) heterostructures are developed through a facile metal–organic framework-engaged templating approach, which realizes boosted Zn ion storage performance. Pr<sub>6</sub>O<sub>11</sub> can not only effectively suppress the dissolution of Mn to stabilize Mn<sub>2</sub>O<sub>3</sub> but also induce interfacial charge rearrangement and promote electron/ion transfer, contributing to the improved electrochemical activity and stability of PrO-MnO. Moreover, the rationally designed hollow nanostructure offers sufficient active sites and facilitates the reaction kinetics. As expected, the PrO-MnO cathode exhibits excellent rate and cycling performance with a high reversible capacity of 140.8 mAh g<sup>−1</sup> after 2000 cycles at 1 A g<sup>−1</sup>, outperforming the Mn<sub>2</sub>O<sub>3</sub> cathode.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":null,"pages":null},"PeriodicalIF":24.4000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/aenm.202402743","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Mn-based oxides are broadly prospected cathode materials for aqueous Zn-ion batteries (AZIBs) due to their rich abundance, low cost, and plentiful valence states. However, the further development of Mn-based oxides is severely restricted by the dissolution of active materials and poor structural stability. Herein, hollow octahedral Pr6O11-Mn2O3 (denoted as PrO-MnO) heterostructures are developed through a facile metal–organic framework-engaged templating approach, which realizes boosted Zn ion storage performance. Pr6O11 can not only effectively suppress the dissolution of Mn to stabilize Mn2O3 but also induce interfacial charge rearrangement and promote electron/ion transfer, contributing to the improved electrochemical activity and stability of PrO-MnO. Moreover, the rationally designed hollow nanostructure offers sufficient active sites and facilitates the reaction kinetics. As expected, the PrO-MnO cathode exhibits excellent rate and cycling performance with a high reversible capacity of 140.8 mAh g−1 after 2000 cycles at 1 A g−1, outperforming the Mn2O3 cathode.
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.