Acid etching V2O5 nanowires cathode for high-performance zinc-ion full batteries

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-03-30 DOI:10.1016/j.cej.2025.162148

Huan-zhang Wen, Aiqun Kong, Yun-fei Shen, Yun-qi Fan, Jian-jie Liu, Long Chen

{"title":"Acid etching V2O5 nanowires cathode for high-performance zinc-ion full batteries","authors":"Huan-zhang Wen, Aiqun Kong, Yun-fei Shen, Yun-qi Fan, Jian-jie Liu, Long Chen","doi":"10.1016/j.cej.2025.162148","DOIUrl":null,"url":null,"abstract":"Vanadium oxides are extensively utilized as cathode materials in aqueous zinc-ion batteries (AZIBs) due to the rich redox chemistry of vanadium, while their limited cyclability and sluggish diffusion kinetics impede the practical adoption. Herein, the structural engineering strategy via H2SO4 etching is proposed to modulate the morphology and electronic structure of V2O5 (termed as V2O5-H2SO4). Specifically, V2O5 etched H2SO4 features a staggered nanowire architecture and an increased V5+/V4+ ratio, contributing to improving structural stability and accelerating ion transport kinetics. The X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopy reveal that the increased V5+ diminished Zn2+ diffusion barriers in V2O5-H2SO4, Modified the bonding architecture and furnish extra ion-diffusion channels and ample active sites, thus helping to elucidate the zinc storage mechanism and achieve the excellent electrochemical performance. V2O5-H2SO4 cathode exhibits an impressive energy output of 391.7 Wh kg−1 at 152.66 W kg−1. The assembled V2O5-H2SO4||CuZn2/In/InZn3@Zn full battery exhibits significantly augmented specific capacity of 588.4 mAh g−1 at 0.2 A g−1 and long-cycle stability. This research emphasizes the significance of acid etching on the structural engineering of AZIBs vanadium oxides cathode materials, providing a new approach for structural functional materials.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"183 1","pages":""},"PeriodicalIF":13.3000,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.cej.2025.162148","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

Vanadium oxides are extensively utilized as cathode materials in aqueous zinc-ion batteries (AZIBs) due to the rich redox chemistry of vanadium, while their limited cyclability and sluggish diffusion kinetics impede the practical adoption. Herein, the structural engineering strategy via H₂SO₄ etching is proposed to modulate the morphology and electronic structure of V₂O₅ (termed as V₂O₅-H₂SO₄). Specifically, V₂O₅ etched H₂SO₄ features a staggered nanowire architecture and an increased V⁵⁺/V⁴⁺ ratio, contributing to improving structural stability and accelerating ion transport kinetics. The X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopy reveal that the increased V⁵⁺ diminished Zn²⁺ diffusion barriers in V₂O₅-H₂SO₄, Modified the bonding architecture and furnish extra ion-diffusion channels and ample active sites, thus helping to elucidate the zinc storage mechanism and achieve the excellent electrochemical performance. V₂O₅-H₂SO₄ cathode exhibits an impressive energy output of 391.7 Wh kg⁻¹ at 152.66 W kg⁻¹. The assembled V₂O₅-H₂SO₄||CuZn₂/In/InZn₃@Zn full battery exhibits significantly augmented specific capacity of 588.4 mAh g⁻¹ at 0.2 A g⁻¹ and long-cycle stability. This research emphasizes the significance of acid etching on the structural engineering of AZIBs vanadium oxides cathode materials, providing a new approach for structural functional materials.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

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.