兰州大学机构库
Manipulating Sulfur Conversion Kinetics through Interfacial Built-In Electric Field Enhanced Bidirectional Mott-Schottky Electrocatalysts in Lithium-Sulfur Batteries
Liu, Guo1; Zeng, Qi2; Wu, Qingfeng1; Tian, Shuhao2; Sun, Xiao2; Wang, Di2; Li, Xijuan1; Wei, Wei1; Wu, Tianyu1; Zhang, Yuhao1; Sheng, Yanbin3; Tao, Kun1; Xie, Erqing1; Zhang, Zhenxing1
2023-08-09
Online publication date2023-08
Source PublicationACS Applied Materials & Interfaces   Impact Factor & Quartile
ISSN1944-8244 ; 1944-8252
page numbers12
AbstractEfficient electrocatalysts and catalytic mechanisms remaina pressingneed in Li-S electrochemistry to address lithium polysulfide(LiPS) shuttling and enhance conversion kinetics. This study presentsthe development of multifunctional VO2@rGO heterostructures,incorporating interfacial built-in electric field (BIEF) enhancement,as a Mott-Schottky electrocatalyst for Li-S batteries.Electrochemical experiments and theoretical analysis demonstrate thatthe interfacial BIEF between VO2 and rGO induces self-drivencharge redistribution, resulting in accelerated charge transport rates,enhanced LiPS chemisorption, reduced energy barriers for Li2S nucleation/decomposition, and improved Li-ion diffusion behavior.The Mott-Schottky electrocatalyst, combining the strengthsof VO2's anchoring ability, rGO's metallicconductivity, and BIEF's optimized charge transport, exhibitsan outstanding trapping-conversion effect.The modified Li-S battery with a VO2@rGO-modifiedseparator achieves a highly reversible capacity of 558.0 mAh g(-1) at 2 C over 600 cycles, with an average decay rateof 0.048% per cycle. This research offers valuable insights into thedesign of Mott-Schottky electrocatalysts and their catalyticmechanisms, advancing high-efficiency Li-S batteries and othermultielectron energy storage and conversion devices.
KeywordMott-Schottky electrocatalyst built-in electricfield lithium-sulfur batteries bidirectionalcatalysis polysulfide
PublisherAMER CHEMICAL SOC
DOI10.1021/acsami.3c08088
Indexed BySCIE
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:001044983700001
Original Document TypeArticle ; Early Access
PMID 37555537
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568988
Collection兰州大学
Corresponding AuthorZhang, Zhenxing
Affiliation
1.Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China;
2.Lanzhou Univ, Sch Mat & Energy, Lanzhou 730000, Peoples R China;
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Liu, Guo,Zeng, Qi,Wu, Qingfeng,et al. Manipulating Sulfur Conversion Kinetics through Interfacial Built-In Electric Field Enhanced Bidirectional Mott-Schottky Electrocatalysts in Lithium-Sulfur Batteries[J]. ACS Applied Materials & Interfaces,2023.
APA Liu, Guo.,Zeng, Qi.,Wu, Qingfeng.,Tian, Shuhao.,Sun, Xiao.,...&Zhang, Zhenxing.(2023).Manipulating Sulfur Conversion Kinetics through Interfacial Built-In Electric Field Enhanced Bidirectional Mott-Schottky Electrocatalysts in Lithium-Sulfur Batteries.ACS Applied Materials & Interfaces.
MLA Liu, Guo,et al."Manipulating Sulfur Conversion Kinetics through Interfacial Built-In Electric Field Enhanced Bidirectional Mott-Schottky Electrocatalysts in Lithium-Sulfur Batteries".ACS Applied Materials & Interfaces (2023).
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