img
img
img

Akademisyenler > Fatemeh MOLLAAMIN > Yayın Detayı

Thermodynamic investigation of enolketo tautomerism for alcohol sensors based on carbon nanotubes as chemical sensors      
Yazarlar (1)
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN Dr. Öğr. Üyesi Fatemeh MOLLAAMIN
Islamic Azad University, Qom Branch, İran
Devamını Göster
Özet
Single-walled carbon nanotubes (SWNT) are molecular-scale wires with high mechanical stiffness and strength. The faster response and substantially higher sensitivity of chemical nanotubes sensors over existing solid-state sensors, which was due to exposure of gaseous molecules such as C2H 5OH, served as the basis to consider gas sensors based on SWNT. These factors also focused on the ethanol sensing effects of the sensors on the acetaldehyde and ethyl methyl ketone tautomerism at room temperature, which have been formed within alcohol dehydrogenation and condensation reactions involved in chain growth pathways on SWNT. Since temperature has a strong effect on structure and stability, we were interested in calculating some specific thermo chemical properties to justify the structural stability of existing isomers in keto↔enol tautomerism. So, the thermodynamic and electric properties of produced ethyl-methyl ketone involved in keto↔enol tautomerism have been investigated using semi-empirical methods. The obtained results showed that the keto structure is more stable because of intramolecular hydrogen bond formation due to strong C=O bond existence in the keto tautomers. Our finding implies that the semi-empirical quantum chemical calculations can be suggested as proper methods to study the interaction of different chemical compounds with SWNT in a reliable way. © Taylor & Francis Group, LLC.
Anahtar Kelimeler
Acetaldehyde | Electrical resistance | Ethanol sensor | Ethyl methyl ketone | Keto and enol tautomerism | Single-walled carbon nanotube | Thermodynamic functions
Makale Türü Özgün Makale
Makale Alt Türü SCOPUS dergilerinde yayınlanan tam makale
Dergi Adı Fullerenes Nanotubes and Carbon Nanostructures
Dergi ISSN 1536-383X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2010
Cilt No 18
Sayı 1
Sayfalar 45 / 55
Doi Numarası 10.1080/15363830903291564
Makale Linki http://dx.doi.org/10.1080/15363830903291564
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
WoS 43
SCOPUS 84
Google Scholar 66
Thermodynamic investigation of enolketo tautomerism for alcohol sensors based on carbon nanotubes as chemical sensors

Paylaş