Interlayer and O-vacancy engineering co-boosting fast kinetics and stable structure of hydrated sodium ammonium vanadate for aqueous zinc-ion battery

IF 13.3 1区 工程技术 Q1 ENGINEERING, CHEMICAL Chemical Engineering Journal Pub Date : 2025-01-15 DOI:10.1016/j.cej.2025.159920
Lang Zhang , Dong Fang , Fei Wang , Jianhong Yi , Mingjun Wang , Te Hu , Yan Zhao
{"title":"Interlayer and O-vacancy engineering co-boosting fast kinetics and stable structure of hydrated sodium ammonium vanadate for aqueous zinc-ion battery","authors":"Lang Zhang ,&nbsp;Dong Fang ,&nbsp;Fei Wang ,&nbsp;Jianhong Yi ,&nbsp;Mingjun Wang ,&nbsp;Te Hu ,&nbsp;Yan Zhao","doi":"10.1016/j.cej.2025.159920","DOIUrl":null,"url":null,"abstract":"<div><div>The electrochemical properties of layered vanadate cathode materials for aqueous zinc ion batteries (AZIBs) are still restricted by sluggish reaction kinetics, low conductivity, and poor structural stability. Herein, the Na-doped hydrated NH<sub>4</sub>V<sub>4</sub>O<sub>10</sub> (NaNVOH) with different contents of interlayered H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup> and O-vacancies are obtained with optimized electrostatic interaction between [VO<sub>n</sub>] framework and H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup>/Na<sup>+</sup> as well as Zn<sup>2+</sup> diffusion kinetics. Experimental evidence and theoretical calculations show that the optimal interlayered H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup> and more O-vacancies in NaNVOH (NaNVOH2) reinforce the bond strength, narrow the band gap, and promote Zn<sup>2+</sup> diffusion coefficients. The reduced H<sup>+</sup> insertion hinders cathode/electrolyte interfacial side reaction, ensures sufficient Zn<sup>2+</sup> diffusion coefficients at voltage range of 0.6–0.2 V. Meantime, the high electrochemical reversibility of Zn<sub>3</sub>(OH)<sub>2</sub>V<sub>2</sub>O<sub>7</sub>·2H<sub>2</sub>O by-product is also validated by <em>in-situ</em> and <em>ex-situ</em> characterizations. As a result, the NaNVOH2 cathode shows a high specific capacity (519 mAh g<sup>-1</sup> at 0.5 C, 1 C = 500 mA g<sup>−1</sup>), good rate capability (236 mAh g<sup>-1</sup> at 10 C), and a stable cycling life (without obvious capacity decay over 3000 cycles at 15 C). This study is of great significance for developing high-performance layered vanadate toward the practical application of AZIBs.</div></div>","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"506 ","pages":"Article 159920"},"PeriodicalIF":13.3000,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1385894725007193","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

The electrochemical properties of layered vanadate cathode materials for aqueous zinc ion batteries (AZIBs) are still restricted by sluggish reaction kinetics, low conductivity, and poor structural stability. Herein, the Na-doped hydrated NH4V4O10 (NaNVOH) with different contents of interlayered H2O/NH4+ and O-vacancies are obtained with optimized electrostatic interaction between [VOn] framework and H2O/NH4+/Na+ as well as Zn2+ diffusion kinetics. Experimental evidence and theoretical calculations show that the optimal interlayered H2O/NH4+ and more O-vacancies in NaNVOH (NaNVOH2) reinforce the bond strength, narrow the band gap, and promote Zn2+ diffusion coefficients. The reduced H+ insertion hinders cathode/electrolyte interfacial side reaction, ensures sufficient Zn2+ diffusion coefficients at voltage range of 0.6–0.2 V. Meantime, the high electrochemical reversibility of Zn3(OH)2V2O7·2H2O by-product is also validated by in-situ and ex-situ characterizations. As a result, the NaNVOH2 cathode shows a high specific capacity (519 mAh g-1 at 0.5 C, 1 C = 500 mA g−1), good rate capability (236 mAh g-1 at 10 C), and a stable cycling life (without obvious capacity decay over 3000 cycles at 15 C). This study is of great significance for developing high-performance layered vanadate toward the practical application of AZIBs.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
求助全文
约1分钟内获得全文 去求助
来源期刊
Chemical Engineering Journal
Chemical Engineering Journal 工程技术-工程:化工
CiteScore
21.70
自引率
9.30%
发文量
6781
审稿时长
2.4 months
期刊介绍: The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.
期刊最新文献
From low conductivity to high energy efficiency: The role of conductive polymers in phase change materials Isomeric 2D and 3D covalent organic frameworks induced by inter-modular hydrogen bonds for photocatalytic CO2 reduction Subnanometer ultra-thin magnetic nanosheets for highly sensitive magnetic resonance angiography Solvent-engineered in-situ heterogenization of copper-based sulfides for broadening electromagnetic wave absorption Biodegradation of cephalexin in wastewater by Glutamicibacter sp. S2 and Herbaspirillum sp. S8: Performance, pathway, genomes and synergistic bio-augmentation
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1