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Positron annihilation studies on the phase transition of benzene and reactivity of nitrobenzene in confined framework of ZSM-5 zeolite by D. Dutta; A. Sachdeva; P.K. Pujari is a Physics and Astronomy article available to read on EtoBox.
What is Positron annihilation studies on the phase transition of benzene and reactivity of nitrobenzene in confined framework of ZSM-5 zeolite about?
We present a new result on positron annihilation spectroscopy on phase transition and reactivity (towards positronium) of confined liquids in the pores of ZSM-5 zeolite using Doppler broadened annihilation radiation measurement and lifetime spectroscopy. Benzene confined in intergranular spaces (mesopores) and micropores in ZSM-5 shows two distinct freezing points. While the freezing temperature of benzene in mesopore is close to the bulk value, a 5-6 K depression is observed for benzene inside micropores (size $5 A ̊). The reactivity of nitrobenzene towards positronium is studied in nitrobenzene-benzene mixture incorporated in ZSM-5 pores. An anomalous enhancement in the reactivity is observed as compared to measurements in the bulk liquid. The results are discussed.
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- Author
- D. Dutta; A. Sachdeva; P.K. Pujari
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)
- Published
- 2006
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)