近日,南京大学周豪慎团队为氧化物正极开发了新型的Li-O-vacancy构型。与富锂层状氧化物中典型的Li-O-Li构型相比,Li-O-vacancy构型不仅可以在层状结构中大量激发氧相关的阴离子氧化还原行为,而且可以在高电压充电过程中有效抑制晶格氧的不可逆损失。在锂离子脱嵌过程中,该构型还能够有效促进可逆的锂离子迁移和稳定的...
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近日,南京大学周豪慎团队针对传统Li-O-Li构型面临的一系列问题开发了新型的Li-O-vacancy构型。作者通过从经典的钠电材料Na2Mn3O7嫁接Mn本征空位,在无Co/Ni层状氧化物正极材料Li4/7[□1/7Mn6/7]O2(□:Mn空位)中实现了新型的Li-O...
4, for different O vacancy concentrations. In addition, Fig. 5 addresses the depen- dences of the different exchange terms and of TC on the O vacancy concentration. As expected, O deficiency in EuO causes almost rigid shifts of all states to lower energy, giving rise to the well known ...
& Yan, X. Oxygen Vacancy-Enhanced Visible Light-driven Photocatalytic Activity of TiO2 Sphere-W18O49 Nanowire Bundle Heterojunction. Appl. Catal. A: Gen ... - 《Applied Catalysis A General》 被引量: 5发表: 2015年 Design of visible-light photocatalysts by coupling of narrow bandgap semiconductor...
Thedcconductivity of the N2-annealed and O2-annealed samples is attributed to the long-range motion of theVo, and that of the as-sintered sample is considered to be governed by the electronic and oxygen-vacancy ionic mixed conduction mechanism. Low concentration and random distributed oxygen ...
A careful analysis of the impedance spectra of and composites reveals that the increased conductivity of the composites is due to enhanced fluorine ion vacancy concentration. The combination of homogeneous and heterogeneous doping is consistent with the above finding. These results are in reasonable agre...
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Vacancy ordering in the structure of γ-Al2O3 喜欢 0 阅读量: 19 作者:Kryukova G.N,Klenov D.O,Ivanova A.S,Tsybulya S.V 摘要: Defect structure of γ-Al 2O 3 prepared by the thermal decomposition of well-crystallized, high purity boehmite (γ-AlOOH) has been studied by HREM. It ...
J. O-vacancy as the origin of negative bias illumination stress instability in amorphous In-Ga-Zn-O thin film transistors. Appl. Phys. Lett. 97, 22108 (2010). 33. Matsuda, T., Nishimoto, D., Takahashi, K., Ueno, T. & Kimura, In Proceedings of International Display Workshops/Asia ...