期刊文献+

A Model of Irregular Impurity at the Surface of Nanoparticle and Catalytic Activity

A Model of Irregular Impurity at the Surface of Nanoparticle and Catalytic Activity
原文传递
导出
摘要 A problem of nanocatalyst improvement is considered. The existence of irregularities at the surface of nanoparticle leads to the increasing of the surface/volume ratio and, correspondingly, to the improvement of the catalytic activity. But this impurity gives one an additional effect due to the change of the electronic density at the surface. We suggest simple model for the description of this effect. The model allows one to find the discrete spectrum of the Schrdinger operator for nanoparticle. Due to this impurity induced bound states the electron density increases near the surface. It leads to the increase of the catalytic activity of nanoparticles with surface impurities. A problem of nanocatalyst improvement is considered. The existence of irregularities at the surface of nanoparticle leads to the increasing of the surface/volume ratio and, correspondingly, to the improvement of the catalytic activity. But this impurity gives one an additional effect due to the change of the electronic density at the surface. We suggest simple model for the description of this effect. The model allows one to find the discrete spectrum of the Schrdinger operator for nanoparticle. Due to this impurity induced bound states the electron density increases near the surface. It leads to the increase of the catalytic activity of nanoparticles with surface impurities.
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第7期55-58,共4页 理论物理通讯(英文版)
基金 Supported by Federal Targeted Program "Scientific and Educational Human Resources for Innovation-Driven Russia" (contracts P689NK-526P, 14.740.11.0879, and 16.740.11.0030) and grant 11-08-00267 of Russian Foundation for Basic Researches state contract SC16.516.11.6073 and by Federal Targeted Program "Researches and Development in the Prioring Directions Developments of a Scientific and Technological Complex of Russia 2007-2013" (state contract 07.514.11.4146)
关键词 表面杂质 纳米粒子 催化活性 模型描述 电子密度 纳米催化剂 薛定谔方程 离散频谱 semi-infinite crystal, operator spectrum, impurity, catalytic activity, nanoparticle
  • 相关文献

参考文献17

  • 1W. Xu, J.S. Kong, and P. Chen, Phys. Chem. Chem. Phys. 11 (2009) 2767.
  • 2I.A. Erikat, B.A. Hamad, and J.M. Khalifeh, Physica Status Solidi (b) 248 (2011) 1425.
  • 3V. Glibin, L. Svirko, I. Bashtan-Kandybovich, and D. Karamanev, Surface Science 604 (2010) 500.
  • 4M.P. Hyman and J.M. Vohs, Surface Science 605 (2011) 383.
  • 5Ch. Weilach, Ch. Spiel, K. FSttinger, and G. Rupprechter, Surface Science 605 (2011) 1500.
  • 6K. Chuasiripattana, O. Warschkow, B. Delley, and C. Stampfl, Surface Science 604 (2010) 1742.
  • 7S. Albeverio, F. Gesztesy, R. Hoegh-Krohn, and H. Holden, with an appendix by P. Exner, Solvable Models in Quantum Mechanics, 2nd edn. Providence, R.I.: AMS Chelsea Publishing (2005).
  • 8B.S. Pavlov, Uspekhi. Mat. Nauk. 42 (1987) 99.
  • 9A. Ryzhkova and P. Swiderek, Surface Science 605 (2011) 963.
  • 10M. Mehlhorn, V. Simic-Milosevic, S. Jaksch, P. Scheier, and K. Morgenstern, Surface Science 604 (2010) 1698.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部