Bulletin of Pure & Applied Sciences- Chemistry
  • Year: 2011
  • Volume: 30c
  • Issue: 1and2

Molecular motions and proton dynamics of water molecules confined within single wall carbon nanotubes

  • Author:
  • Veena Kumari, Jitendra Kumar Paswan1, Sippy Kumari1, Vikash Kumar Charan1, Amita Sharma2, D. Prasad3
  • Total Page Count: 4
  • Page Number: 39 to 42

1University Department of Physics, B.R.A. Bihar University, Muzaffarpur, BIHAR, INDIA

2Department of Physics, R.D.S. College, Muzaffarpur, BIHAR, INDIA

3Dean, Faculty of Engineering, MIT, Muzaffarpur, BIHAR, INDIA

Department of Chemistry, Samta College, Jandaha, Vaishali, Bihar, INDIA

Online published on 22 February, 2013.

Abstract

We have studied about molecular motions and proton dynamic of water molecules confined within single wall carbon nanotubes by 1H and 2H nuclear magnetic resonance in the temperature range 100k to 300k. This was done across so called ice-nanotube formation. We observed that above 220k the water is in a liquid like state with transitional and quasifree rotational motions. It was also observed that below 220k the large amplitude molecular motions starts to freeze within a time scale of 10 −6 seconds. We have reported systematic NMR observation which explore such dynamics.

Keywords

Molecular motions, Proton dynamic of water molecules, Nanotubes