New DC conductivity spectra of Zn–Al layered double hydroxide (Zn–Al–NO<sub>3</sub>–LDH) and its calcined product of ZnO phase

Abdullah Ahmed Ali Ahmed; Zainal Abidin Talib; Mohd Zobir Hussein; Yusra Abdullah Ahmed Al-Magdashi; Abdullah Ahmed Ali Ahmed; Zainal Abidin Talib; Mohd Zobir Hussein; Yusra Abdullah Ahmed Al-Magdashi

doi:10.3934/matersci.2017.3.670

AIMS Materials Science

2017, Volume 4, Issue 3: 670-679. doi: 10.3934/matersci.2017.3.670

Previous Article Next Article

Research article Topical Sections

New DC conductivity spectra of Zn–Al layered double hydroxide (Zn–Al–NO₃–LDH) and its calcined product of ZnO phase

1.
Department of Physics, Faculty of Applied Science, Thamar University, Dhamar 87246, Yemen
2.
Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
3.
Advanced Materials and Nanotechnology Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

Received: 22 March 2017 Accepted: 21 May 2017 Published: 26 May 2017

Zn–Al–NO₃–LDH nanostructure was synthesized via the coprecipitation method at molar ratio Zn²⁺/Al³⁺ = 4 and pH = 7. The resultant sample was thermally treated at calcined temperatures of 50, 100, 150, 200, 250 and 300 °C. The layered structure of the Zn–Al–NO₃–LDH samples was stable below the calcination temperature 200 °C as shown in powder X-ray diffraction (PXRD) patterns of calcined samples. The calcination products showed a collapse of LDH structure and ZnO phase was formed at 200 °C and above. The dielectric spectroscopy of LDH was explained using anomalous low frequency dispersion (ALFD) due to the low mobility of LDH carriers. The conductivity spectra of LDH can be theoretically described according to the effective phase within the calcination products of LDH. In the comparison with previously researches, this study presented higher values of DC conductivity for all studied samples.
- layered double hydroxide nanostructure,
- ZnO,
- co-precipitation method,
- heat treatment,
- DC conductivity,
- anomalous low frequency dispersion
Citation: Abdullah Ahmed Ali Ahmed, Zainal Abidin Talib, Mohd Zobir Hussein, Yusra Abdullah Ahmed Al-Magdashi. New DC conductivity spectra of Zn–Al layered double hydroxide (Zn–Al–NO3–LDH) and its calcined product of ZnO phase[J]. AIMS Materials Science, 2017, 4(3): 670-679. doi: 10.3934/matersci.2017.3.670

Related Papers:

Abstract

Zn–Al–NO₃–LDH nanostructure was synthesized via the coprecipitation method at molar ratio Zn²⁺/Al³⁺ = 4 and pH = 7. The resultant sample was thermally treated at calcined temperatures of 50, 100, 150, 200, 250 and 300 °C. The layered structure of the Zn–Al–NO₃–LDH samples was stable below the calcination temperature 200 °C as shown in powder X-ray diffraction (PXRD) patterns of calcined samples. The calcination products showed a collapse of LDH structure and ZnO phase was formed at 200 °C and above. The dielectric spectroscopy of LDH was explained using anomalous low frequency dispersion (ALFD) due to the low mobility of LDH carriers. The conductivity spectra of LDH can be theoretically described according to the effective phase within the calcination products of LDH. In the comparison with previously researches, this study presented higher values of DC conductivity for all studied samples.

References

[1]	Cavani F, Trifirò F, Vaccari A (1991) Hydrotalcite-type anionic clays: preparation, properties and applications. Catal Today 11: 173–301. doi: 10.1016/0920-5861(91)80068-K
[2]	Braterman PS, Xu ZP, Yarberry F (2004) Layered Double Hydroxides (LDHs). In: Auerbach SM, Carrado KA, Dutta PK, Handbook of layered materials, New York: Marcel Dekker Inc., 373–474.
[3]	Jin S, Fallgren PH, Morris JM, et al. (2007) Removal of bacteria and viruses from waters using layered double hydroxide nanocomposites. Sci Technol Adv Mat 8: 67–70.
[4]	Li SP, Hou WG, Hu JF, et al. (2003) Influence of shear rate on thixotropic suspensions. J Disper Sci Technol 24: 709–714. doi: 10.1081/DIS-120023817
[5]	Tamura H, Chiba J, Ito M, et al. (2004) Synthesis and characterization of hydrotalcite-ATP intercalates. Solid State Ionics 172: 607–609. doi: 10.1016/j.ssi.2004.04.035
[6]	Williams GR, O'Hare D (2006) Towards understanding, control and application of layered double hydroxide chemistry. J Mater Chem 16: 3065–3074. doi: 10.1039/b604895a
[7]	Mehrotra V, Giannelis EP (1992) On the dielectric response of complex layered oxides: Mica-type silicates and layered double hydroxides. J Appl Phys 72: 1039–1048. doi: 10.1063/1.351830
[8]	Ivanov M, Klemkaite K, Khinsky A, et al. (2011) Dielectric and Conductive Properties of Hydrotalcite. Ferroelectrics 417: 136–142. doi: 10.1080/00150193.2011.578529
[9]	Frunza L, Schönhals A, Frunza S, et al. (2007) Rotational fluctuations of water confined to layered oxide materials: Nonmonotonous temperature dependence of relaxation times. J Phys Chem A 111: 5166–5175. doi: 10.1021/jp0717140
[10]	Ahmed AAA, Talib ZA, Hussein MZB, et al. (2012) In situ dielectric measurements of Zn–Al layered double hydroxide with anionic nitrate ions. Solid State Sci 14: 1196–1202. doi: 10.1016/j.solidstatesciences.2012.06.007
[11]	Ahmed AAA, Talib ZA, Hussein MZB (2012) Thermal, optical and dielectric properties of Zn–Al layered double hydroxide. Appl Clay Sci 56: 68–76. doi: 10.1016/j.clay.2011.11.024
[12]	Chitrakar R, Tezuka S, Sonoda A, et al. (2008) A New Method for Synthesis of Mg–Al, Mg–Fe, and Zn–Al Layered Double Hydroxides and Their Uptake Properties of Bromide Ion. Ind Eng Chem Res 47: 4905–4908. doi: 10.1021/ie0716417
[13]	Seftel EM, Popovici E, Mertens M, et al. (2008) Zn–Al layered double hydroxides: Synthesis, characterization and photocatalytic application. Micropor Mesopor Mat 113: 296–304. doi: 10.1016/j.micromeso.2007.11.029
[14]	Marotti RE, Guerra DN, Bello C, et al. (2004) Bandgap energy tuning of electrochemically grown ZnO thin films by thickness and electrodeposition potential. Sol Energ Mat Sol C 82: 85–103. doi: 10.1016/j.solmat.2004.01.008
[15]	Hussein MZB, Yun-Hin TY, Tawang MMB, et al. (2002) Thermal degradation of (zinc-aluminium-layered double hydroxide-dioctyl sulphosuccinate) nanocomposite. Mater Chem Phys 74: 265–271. doi: 10.1016/S0254-0584(01)00481-3
[16]	Jonscher AK (1983) Dielectric relaxation in solids, London: Chelsea Dielectrics Press.
[17]	Mehrotra V (1992) Intercalation of Layered Silicates, Layered Double Hydroxides, and Lead Iodide: Synthesis, Characterization and Properties [PhD's Dissertation], New York: Cornell University.
[18]	Jung H, Ohashi H, Anilkumar GM, et al. (2013) Zn²⁺ substitution effects in layered double hydroxide (Mg_(1−x)Zn_x)₂Al: textural properties, water content and ionic conductivity. J Mater Chem A 1: 13348–13356. doi: 10.1039/c3ta12025b
[19]	Furukawa Y, Tadanaga K, Hayashi A, et al. (2011) Evaluation of ionic conductivity for Mg–Al layered double hydroxide intercalated with inorganic anions. Solid State Ionics 192: 185–187. doi: 10.1016/j.ssi.2010.05.032
[20]	Kim HS, Yamazaki Y, Kim JD, et al. (2010) High ionic conductivity of Mg–Al layered double hydroxides at intermediate temperature (100–200 °C) under saturated humidity condition (100% RH). Solid State Ionics 181: 883–888. doi: 10.1016/j.ssi.2010.04.037
[21]	Light TS, Licht S, Bevilacqua AC, et al. (2005) The fundamental conductivity and resistivity of water. Electrochem Solid-State Lett 8: E16–E19. doi: 10.1149/1.1836121
[22]	Ahmed AAA, Abidin Talib Z, Hussein MZB (2012) ESR spectra and thermal diffusivity of Zn–Al layered double hydroxide. J Phys Chem Solids 73: 124–128. doi: 10.1016/j.jpcs.2011.10.016
[23]	Babu KS, Chiranjivi T (1982) DC ionic conductivity in single crystals of lead nitrate. Solid State Ionics 6: 155–157. doi: 10.1016/0167-2738(82)90082-0
[24]	Tripathi R, Kumar A, Bharti C, et al. (2010) Dielectric relaxation of ZnO nanostructure synthesized by soft chemical method. Curr Appl Phys 10: 676–681. doi: 10.1016/j.cap.2009.08.015
[25]	Jonscher AK (1996) Universal relaxation law, London: Chelsea Dielectrics Press.
[26]	Tripathi R, Kumar A, Bharti C, et al. (2010) Dielectric relaxation of ZnO nanostructure synthesized by soft chemical method. Curr Appl Phys 10: 676–681. doi: 10.1016/j.cap.2009.08.015

Reader Comments

Your name:*

Email:*
© 2017 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)