The theoretical study on interaction of hydrogen with single-walled boron nitride nanotubes. I. The reactive force field ReaxFF HBN development

Sang Soo Han, Jeung Ku Kang, Hyuck Mo Lee, Adri C.T. Van Duin, William A. Goddard

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Abstract

We present a new reactive force field ReaxFFHBN derived to accurately model large molecular and condensed phase systems of H, B, and N atoms. ReaxFFHBN has been tested against quantum calculation data for B-H, B-B, and B-N bond dissociations and for H-B-H, B-N-B, and N-B-N bond angle strain energies of various molecular clusters. The accuracy of the developed ReaxFFHBN for B-N-H systems is also tested for (i) H-B and H-B bond energies as a function of out of plane in H-B (N H2) 3 and H-N (B H2) 3, respectively, (ii) the reaction energy for the B3 N3 H6 + H2 → B3 N3 H8, and (iii) crystal properties such as lattice parameters and equations of states for the hexagonal type (h-BN) with a graphite structure and for the cubic type (c-BN) with a zinc-blende structure. For all these systems, ReaxFFHBN gives reliable results consistent with those from quantum calculations as it describes well bond breaking and formation in chemical processes and physical properties. Consequently, the molecular-dynamics simulation based on ReaxFFHBN is expected to give a good description of large systems (>2000 atoms even on the one-CPU machine) with hydrogen, boron, and nitrogen atoms.

Original languageEnglish (US)
Article number114703
JournalJournal of Chemical Physics
Volume123
Issue number11
DOIs
StatePublished - Sep 15 2005

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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