• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Molybdenum Oxide Nanosheets with Tunable Plasmonic Resonance: Aqueous Exfoliation Synthesis and Charge Storage Applications
【24h】

Molybdenum Oxide Nanosheets with Tunable Plasmonic Resonance: Aqueous Exfoliation Synthesis and Charge Storage Applications

机译：具有可调等离子共振的氧化钼纳米片：水性剥离合成和电荷存储应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Herein, a simple aqueous-exfoliation strategy is introduced for the fabrication of a series of MoO3-x nanosheets (where x stands for oxygen vacancies) using two commercial molybdenum oxide precursors, MoO2 and MoO3. The nanosheets offer a localized surface plasmon resonance (LSPR) effect which is dependent on the structure and local environment of the nanosheets. The LSPR can be efficiently tuned by changing the weight ratio between the molybdenum oxide precursor(s) and/or by solar light irradiation using a low-energy UV lamp (36 W). For the pristine MoO3-x nanosheets, the highest LSPR signal is obtained for nanosheets prepared using 80% MoO2. On the contrary, after solar light irradiation, the nanosheets prepared using pure MoO3 offer the highest LSPR response. The nanosheets also show an outstanding rate capability when used as binder-free supercapacitor electrodes in an acidified Na2SO4 electrolyte. The electrodes exhibit discharge capacities of 110 and 75 C g(-1) at a scan rate of 20 and 1000 mV s(-1), respectively. The MoO3-x nanosheets can likewise be used as a negative electrode material for lithium-ion batteries. The efficient eco-friendly synthesis and the ability to tune the photochemical and electrochemical properties of the nanosheets make this approach interesting to many energy-related research fields.
机译：在此，介绍了一种简单的水剥离策略，该方法使用两种商业化的氧化钼前驱体MoO2和MoO3来制造一系列MoO3-x纳米片（其中x代表氧空位）。纳米片提供了局部表面等离子体共振（LSPR）效应，其取决于纳米片的结构和局部环境。通过改变氧化钼前体之间的重量比和/或通过使用低能紫外灯（36 W）的太阳光照射，可以有效地调节LSPR。对于原始的MoO3-x纳米片，使用80％MoO2制备的纳米片可获得最高的LSPR信号。相反，在太阳光照射后，使用纯MoO3制备的纳米片具有最高的LSPR响应。当在酸化的Na2SO4电解质中用作无粘合剂的超级电容器电极时，纳米片还显示出出色的速率能力。电极在20和1000 mV s（-1）的扫描速率下分别显示出110和75 C g（-1）的放电容量。 MoO3-x纳米片同样可以用作锂离子电池的负极材料。有效的环保合成以及调节纳米片的光化学和电化学性质的能力使这种方法在许多与能源相关的研究领域中引起了人们的兴趣。

著录项

  • 来源
    《Advanced Functional Materials》 |2019年第4期|1806699.1-1806699.13|共13页
  • 作者

    Etman Ahmed S.; Wang Ligang; Edstrom Kristina; Nyholm Leif; Sun Junliang;

  • 作者单位

    Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius Vag 16C, SE-10691 Stockholm, Sweden|Univ Alexandria, Dept Chem, Fac Sci, POB 426, Alexandria 21321, Egypt;

    Peking Univ, Coll Chem & Mol Engn, Yiheyuan Rd 5, Beijing 100871, Peoples R China;

    Uppsala Univ, Dept Chem, Angstrom Lab, Angstrom Adv Battery Ctr, Box 538, SE-75121 Uppsala, Sweden;

    Uppsala Univ, Dept Chem, Angstrom Lab, Angstrom Adv Battery Ctr, Box 538, SE-75121 Uppsala, Sweden;

    Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius Vag 16C, SE-10691 Stockholm, Sweden|Peking Univ, Coll Chem & Mol Engn, Yiheyuan Rd 5, Beijing 100871, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    aqueous exfoliation; lithium-ion battery; MoO(3-x)nanosheets; plasmonic resonance; supercapacitor;

    机译：水性剥落;锂离子电池;MoO（3-x）纳米片;等离子体共振;超级电容器;

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