Work

Effect of Ultrasonic Irradiation on Preparation and Properties of Ionogels

Year: 2012

Type: article

Abstract: Silica‐gel matrices containing ionic liquid (IL) 1‐butyl‐3‐methylimidazolium hexafluorophosphate viz. ionogels have been synthesized using one‐pot nonhydrolytic sol‐gel method and taking tetraethyl orthosilicate (TEOS) as starting precursor. Effect of ultrasonic irradiation on pore parameters of ionogels and vibrational properties of the IL upon confinement in the porous matrix has been investigated. The synthesized gels have been characterized by BET, DSC, TGA, and FTIR. BET analysis shows some changes in the pore parameters due to ultrasonic irradiation. DSC results indicate shift in glass transition temperature upon confinement of the IL. The FTIR spectra show changes in vibrational bands on confinement, particularly, the bands related to the imidazolium ring; aliphatic chain and anion PF6 − of the IL are found to shift upon confinement in porous silica matrix obtained due to ultrasonic irradiation. Ultrasonic irradiation has been found to affect the gelation dynamics and kinetics and pore parameters.

Source: Journal of Nanomaterials

DOI: 10.1155/2012/570719

Authors: Yogendra Lal Verma, Manish Pratap Singh, Rajendra Kumar Singh

Institution: Banaras Hindu University

Language: English

Topic: Ionic liquids properties and applications

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,375

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Department of Atomic Energy, Government of India, Board of Research in Nuclear Sciences