Exchange and Correlation Effect of Hydrogen Chemisorption on Nano V(100) Surface: A DFT Study by Generalized Gradient Approximation (GGA)
Yazarlar (3)
K. Bakhshi
Islamic Azad University, İran
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN Islamic Azad University, Qom Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
Makale Türü Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Computational and Theoretical Nanoscience
Dergi ISSN 1546-1955 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 04-2011
Cilt / Sayı / Sayfa 8 / 4 / 763–768 DOI 10.1166/jctn.2011.1750
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-84856874451&partnerID=MN8TOARS
Özet
In this study we have investigated the effect of exchange-correlation on adsorption energy of hydrogen molecule on vanadium surface V(100). Our calculations are done by two methods HF and GGA by two basis sets (6-31G* and 6-31G**). We calculated Eads in three sites (top, bridge and central sites). We have showed that the correlation functional in GGA method can be used to yield an acceptable result. We comparison the results of HF method without influence correlation on Eads with GGA method by using correlation functional and calculate correlation energy. We have also showed that correlation can be canceled the complications of varying of E ads. Copyright © 2011 American Scientific Publishers.
Anahtar Kelimeler
Adsorption | Correlation | Density Functional Theory | Exchange | GGA