Narayanan, S. ; Judith Vijaya, J. ; Sivasanker, S. ; John Kennedy, L. ; Ariharan, A. (2014) Enhanced selectivity to benzaldehyde in the liquid phase oxidation of benzyl alcohol using nanocrystalline ZSM-5 zeolite catalyst Journal of Porous Materials, 21 (5). pp. 633-641. ISSN 1380-2224
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Official URL: http://doi.org/10.1007/s10934-014-9809-4
Related URL: http://dx.doi.org/10.1007/s10934-014-9809-4
Abstract
Synthesis and high temperature transport properties of NaCu1+xMn1−xSe2, (x=0−0.75) a new quaternary layered selenide, are reported. NaCuMnSe2 crystallizes in a trigonal unit cell with space group of P-3m1 (a=4.1276 Å, c=7.1253 Å). The isovalent substitution of Mn2+ by Cu2+ is carried out. All the compositions show semiconducting nature, whereas the Seebeck coefficient increases gradually over the entire measured temperature range. Compositions with x=0 and 0.025 follow thermally activated behavior. With increase in copper concentration the conduction mechanism transforms to 2D variable range hopping (VRH) for x=0.05 and 0.075.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer-Verlag. |
| ID Code: | 131540 |
| Deposited On: | 07 Dec 2022 05:06 |
| Last Modified: | 07 Dec 2022 05:06 |
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