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dc.contributor.authorNie, Anmin
dc.contributor.authorGan, Liyong
dc.contributor.authorCheng, Yingchun
dc.contributor.authorAsayesh-Ardakani, Hasti
dc.contributor.authorLi, Qianqian
dc.contributor.authorDong, Cezhou
dc.contributor.authorTao, Runzhe
dc.contributor.authorMashayek, Farzad
dc.contributor.authorWang, Hongtao
dc.contributor.authorSchwingenschlögl, Udo
dc.contributor.authorKlie, Robert F.
dc.contributor.authorYassar, Reza Shahbazian
dc.date.accessioned2015-08-03T11:13:36Z
dc.date.available2015-08-03T11:13:36Z
dc.date.issued2013-07-23
dc.identifier.issn19360851
dc.identifier.pmid23730945
dc.identifier.doi10.1021/nn402125e
dc.identifier.urihttp://hdl.handle.net/10754/562872
dc.description.abstractIn the present work, taking advantage of aberration-corrected scanning transmission electron microscopy, we show that the dynamic lithiation process of anode materials can be revealed in an unprecedented resolution. Atomically resolved imaging of the lithiation process in SnO2 nanowires illustrated that the movement, reaction, and generation of b = [1Ì...1Ì...1] mixed dislocations leading the lithiated stripes effectively facilitated lithium-ion insertion into the crystalline interior. The geometric phase analysis and density functional theory simulations indicated that lithium ions initial preference to diffuse along the [001] direction in the {200} planes of SnO2 nanowires introduced the lattice expansion and such dislocation behaviors. At the later stages of lithiation, the Li-induced amorphization of rutile SnO2 and the formation of crystalline Sn and LixSn particles in the Li2O matrix were observed. © 2013 American Chemical Society.
dc.description.sponsorshipR.S.Y. acknowledges the financial support from the National Science Foundation (Award Nos. CMMI-1200383 and DMR-0820884) and the American Chemical Society Petroleum Research Fund (Award No. 51458-ND10). The acquisition of the UIC JEOL JEM-ARM200CF is supported by an MRI-R<SUP>2</SUP> grant from the National Science Foundation (Grant No. DMR-0959470). Support from the UIC Research Resources Center is also acknowledged.
dc.publisherAmerican Chemical Society (ACS)
dc.subjectatomic scale
dc.subjectin situ STEM
dc.subjectlithium-ion batteries
dc.subjectreaction front
dc.subjecttin oxide nanowires
dc.titleAtomic-scale observation of lithiation reaction front in nanoscale SnO2 materials
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentMaterials Science and Engineering Program
dc.contributor.departmentComputational Physics and Materials Science (CPMS)
dc.identifier.journalACS Nano
dc.contributor.institutionDepartment of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, United States
dc.contributor.institutionInstitute of Applied Mechanics, Zhejiang University, Hangzhou, 310027, China
dc.contributor.institutionDepartment of Physics, University of Illinois at Chicago, Chicago, IL 60607, United States
dc.contributor.institutionMechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, IL 60607, United States
kaust.personGan, Liyong
kaust.personCheng, Yingchun
kaust.personSchwingenschlögl, Udo


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