...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS applied materials & interfaces >Heteroatom-Induced Electronic Structure Modulation of Vertically Oriented Oxygen Vacancy-Rich NiFe Layered Double Oxide Nanoflakes To Boost Bifunctional Catalytic Activity in Li-O-2 Battery
【24h】

Heteroatom-Induced Electronic Structure Modulation of Vertically Oriented Oxygen Vacancy-Rich NiFe Layered Double Oxide Nanoflakes To Boost Bifunctional Catalytic Activity in Li-O-2 Battery

机译：杂体诱导的垂直定向氧空位的电子结构调制层分层双氧化物纳米薄片，在Li-O-2电池中提高双官能催化活性

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

NiFe-based transition metal oxide (NiFe-TMO) has been identified as an effective electrocatalyst for lithium-oxygen (Li-O-2) batteries due to its superior catalytic activity for oxygen evolution reaction. Improving the bifunctional catalytic ability of NiFe-TMO is essential for the further performance improvement of Li-O-2 batteries. Herein, we regulated the electronic structure of free-standing NiFe LDO nanosheets array via introducing foreign Co ion to improve its bifunctional catalytic activity in Li-O-2 batteries. Combined with well-designed electrode architecture and the deliberately modified surface electronic structure, this strategy markedly alleviates polarization problem in terms of low overpotential (0.98 V), and the discharge voltage within 110 cycles remains stable at 2.89 V without significant attenuation. This study illustrates an intimate connection between electronic structure engineering and catalytic activity optimization that is critical for the rational design of Li-O-2 batteries.
机译：基于NiFe的过渡金属氧化物（NiFE-TMO）已被鉴定为锂 - 氧（Li-O-2）电池的有效电催化剂，因为其用于氧进化反应的优异催化活性。提高NiFe-TMO的双官能催化能力对于Li-O-2电池的进一步性能提高至关重要。在此，我们通过引入外源CO离子来调节独立NiFe LDO纳米片阵列的电子结构，以改善Li-O-2电池中的其双官能催化活性。结合设计良好的电极架构和故意修改的表面电子结构，这种策略在低过电位（0.98V）方面显着减轻了极化问题，并且110次循环内的放电电压在2.89V下保持稳定，而不会显着衰减。本研究说明了电子结构工程和催化活性优化之间的密切联系，这对于Li-O-2电池的合理设计至关重要。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号