...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Understanding Nano-Impact Current Spikes: Electrochemical Doping of Impacting Nanoparticles
【24h】

Understanding Nano-Impact Current Spikes: Electrochemical Doping of Impacting Nanoparticles

机译：了解纳米冲击电流尖峰：冲击纳米颗粒的电化学掺杂

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

We demonstrate the generic value of a rigorous analysis of spike shapes observed in nanoimpact experiments. To this end, we investigate the electrochemical doping of insoluble nanoparticles impacting on a biased electrode surface and develop an analytical model of the doping process is developed that accounts for the diffusion of ions inside nanoparticles as well as a numerical model for the response characteristics of the analogue measurement circuitry. By this means, spike shapes that are experimentally observed in the electrode current are predicted and directly compared with experimental data, while appropriate fitting procedures allow detailed physical insights into the ionic mass transport within the particle. Using the oxidative doping of ferrocene nanoparticles with tetrafluoroborate anions as, a paradigm case, we demonstrate that size distributions of particle populations showing excellent agreement with scanning electron microscopy measurements can be extracted from experimental, data and ionic diffusion inside the particle can be quantified.
机译：我们证明了对在纳米冲击实验中观察到的尖峰形状进行严格分析的通用价值。为此，我们研究了不溶性纳米粒子在偏置电极表面上的电化学掺杂，并开发了一种掺杂过程的分析模型，该模型考虑了离子在纳米颗粒内部的扩散以及数值模型的响应特性。模拟测量电路。通过这种方式，可以预测出在电极电流中实验观察到的尖峰形状，并将其与实验数据直接进行比较，而适当的拟合程序则可以对粒子内的离子质量传输进行详细的物理了解。以四氟硼酸根阴离子为二茂铁纳米粒子的氧化掺杂为例，我们证明了可以从实验中提取出与扫描电子显微镜测量结果非常吻合的粒子群尺寸分布，可以量化粒子内部的数据和离子扩散。

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