Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 5, Pages 1536-1539Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ta01012g
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Funding
- Ministry of Science and Technology of China [2011CB932604]
- National Science Foundation of China [50921004, 51172239]
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Using an aberration-corrected transmission electron microscope, we observed the oxygen vacancies, profiled the concentration in the SnO2 delta nanocrystals on an atomic scale, and estimated the amount of oxygen vacancies to be ca. 3.3 atom%. The SnO2-delta nanocrystals show much improved initial Coulombic efficiency, rate capability and specific capacity compared with stoichiometric SnO2 when used as an anode material for lithium ion batteries.
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