First solvation shell of polymer electrolytes: PEO4:KSCN

Sittichai Kulawong

Program of Chemistry, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University,

Nakhon Ratchasima 30000, Thailand

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

and Jittima Chaodamrongsakul

Faculty of Engineering, Vongchavalitkul University, Nakhon Ratchasima 30000, Thailand

Email: This email address is being protected from spambots. You need JavaScript enabled to view it. 

Manuscript received October 15, 2015

Revised November 11, 2015

Abstract

The local structure of potassium ions were investigated, using experimental measurement of the Extended X-ray Absorption Fine Structure (EXAFS) spectra. This method gives more important information at the atomistic scale including the distance (r) between atom pair around the probed ion and coordination number (N). The coordination number, distances and the Debye-Waller factor (s2) of the first shell were focused. EXAFS results revealed that ether oxygen of poly(ethylene oxide); PEO were induced by potassium ion to form an local structure. The first solvation shell in the EXAFS fittings of PEO4:KSCN consists of five oxygen atoms and two nitrogen atoms.

Keywords: EXAFS, PEO4:KSCN

pdf-iconpdf File Size: 141.41 KB

 

mutengineer@gmail.com

Mahanakorn University of Technology

140 Moo 1, Cheum-Sampan Road, Nongchok, Bangkok, Thailand 10530

Tel: +(662)988-3655  Fax: +(662)988-4027

designed by sutit.ongart@gmail.com