Compressive-Strain-Facilitated Fast Oxygen Migration with Reversible Topotactic Transformation in La0.5Sr0.5CoOxvia All-Solid-State Electrolyte Gating
文献类型：期刊论文
| 作者 | Yin, Zhuo,; Wang, Jianlin,; Wang, Jing,,; Li, Jia,; Zhou, Houbo,; Zhang, Cheng,,; Zhang, Hui ; Zhang, Jine; Shen, Feiran,; Hao, Jiazheng,
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| 刊名 | ACS NANO
 |
| 出版日期 | 2022 |
| 卷号 | 16期号:9页码:14632-14643 |
| ISSN号 | 19360851 |
| DOI | 10.1021/acsnano.2c05243 |
| 文献子类 | Article |
| 英文摘要 | Modifying the crystal structure and corresponding functional properties of complex oxides by regulating their oxygen content has promising applications in energy conversion and chemical looping, where controlling oxygen migration plays an important role. Therefore, finding an efficacious and feasible method to facilitate oxygen migration has become a critical requirement for practical applications. Here, we report a compressive-strain-facilitated oxygen migration with reversible topotactic phase transformation (RTPT) in La0.5Sr0.5CoOx films based on all-solid-state electrolyte gating modulation. With the lattice strain changing from tensile to compressive strain, significant reductions in modulation duration (∼72%) and threshold voltage (∼70%) for the RTPT were observed, indicating great promotion of RTPT by compressive strain. Density functional theory calculations verify that such compressive-strain-facilitated efficient RTPT comes from significant reduction of the oxygen migration barrier in compressive-strained films. Further, ac-STEM, EELS, and sXAS investigations reveal that varying strain from tensile to compressive enhances the Co 3d band filling, thereby suppressing the Co-O hybrid bond in oxygen vacancy channels, elucidating the micro-origin of such compressive-strain-facilitated oxygen migration. Our work suggests that controlling electronic orbital occupation of Co ions in oxygen vacancy channels may help facilitate oxygen migration, providing valuable insights and practical guidance for achieving highly efficient oxygen-migration-related chemical looping and energy conversion with complex oxides. © 2022 American Chemical Society. |
| 电子版国际标准刊号 | 1936086X |
| 语种 | 英语 |
| WOS记录号 | WOS:000856697700001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299091]  |
| 专题 | 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yin, Zhuo,,Wang, Jianlin,,Wang, Jing,,,et al. Compressive-Strain-Facilitated Fast Oxygen Migration with Reversible Topotactic Transformation in La0.5Sr0.5CoOxvia All-Solid-State Electrolyte Gating[J]. ACS NANO,2022,16(9):14632-14643. |
| APA | Yin, Zhuo,.,Wang, Jianlin,.,Wang, Jing,,.,Li, Jia,.,Zhou, Houbo,.,...&Shen, Baogen,,,.(2022).Compressive-Strain-Facilitated Fast Oxygen Migration with Reversible Topotactic Transformation in La0.5Sr0.5CoOxvia All-Solid-State Electrolyte Gating.ACS NANO,16(9),14632-14643. |
| MLA | Yin, Zhuo,,et al."Compressive-Strain-Facilitated Fast Oxygen Migration with Reversible Topotactic Transformation in La0.5Sr0.5CoOxvia All-Solid-State Electrolyte Gating".ACS NANO 16.9(2022):14632-14643. |
入库方式： OAI收割
来源：高能物理研究所
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