Synthesis of Nano-Structured Ni-Co-Al Hydrotalcites and Derived Mixed Oxides

Abstract:

nanostructured hydrotalcite-like compounds that contain nickel, cobalt and aluminum have been synthesized by conventional coprecipitation method without using any surfactants or templating agents. The structure and morphology of the coprecipitated nanohydrotalcites and its derived mixed oxides were characterized by powder X-ray diffraction (XRD), Fourier-transformed Infrared (FTIR) spectroscopy, field-emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), and nitrogen adsorption-desorption techniques. The results show that the synthesized materials exhibited micro-meso-pore networks. The cobalt-rich calcined hydrotalcites are generally amorphous, having a coral-like morphology whereas nickel-rich hydrotalcites show hexagonal plate-like morphology. The presence of nickel in mixed oxides catalyzed the reduction of Co-Al-O spinels. The Fast Fourier Transform (FFT) analysis of HRTEM revealed the inter planner distances of the crystal of hydrotalcite.

• Periodical: Advanced Materials Research (Volume 626)
• Pages: 173-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.626.173
• Online since: December 2012
• Authors: M. Abdus Salam, Ye Lwin, Suriati Sufian
• Keywords: Coprecipitation, Hydrotalcite, Mixed Oxides, Nanosized Particles

References

[1] K. Setshedi, J. Ren, O. Aoyi and M.S. Onyango, Int. J. Phy. Sciences 7(1) (2012) 63 – 72.

[2] Y. Zhao, F. Li, R. Zhang, D. G. Evans, and X. Duan, Chem. Mater. 14(2002), 4286.

[3] D.G. Evans, R.C.T. Slade, in: X. Duan, D. G Evans (Eds. ), Layered Double Hydroxides. Springer, New York, 2006, p.1–87.

[4] Y. Arai, M. Ogawa, Appl. Clay Sci. 42(2009), 601.

[5] H. Itoh, T. Sugimoto, J. Colloid interface Sci. 265(2003), 283.

[6] M. Tominga, M. Matsumoto, K. Soejimaand, I. Taniguchi, J. Colloid Interface. 299(2006), 761.

[7] R. Xu and H. C. Zeng, Chem. Mater. 13(2001), 297.

[8] H. Wang, G. Fan, C. Zheng, X. Xiang, F. Li, Ind. Eng. Chem. Res. 49(2010), 2759.

[9] V. Rives, Mater. Chem. Phys. 75(2002), 19.

[10] C. Gabriele, P. Siglinda, Microporous Mesoporous Mater. 107(2008), 3.

[11] P.S. Braterman, Z.P. Xu, F. Yarberry, in: S.M. Auerbach, K.A. Carrado, P.K. Dutta (Eds. ), Handbook of Layered Materials. Marcel Dekker, Inc., New York, 2004, Ch. 8, p.373.

[12] A. Vaccari. Catal. Today 41(1998), 53.

[13] C.P. Kelkar, A.A. Schutz. Micropor. Mater. 10(1997), 163.

[14] O. Salvador, D. Eva, L. Marta, F. Laura. Catal. Today 167(2011), 71.

[15] L. Marta, D. Eva, V. Aurelio, O. Salvador, A. Aline, Appl. Catal. B: Environ. 102(2011), 590.

[16] F. Bergaya, B.K.G. Theng, G. Lagaly, Handbook of Clay Science, Developments in Clay Science, Vol. 1, chapter 3. 1, Elsevier, Amsterdam, 2006, p.1224.

DOI: 10.1016/s1572-4352(05)01015-9

[17] Y. Lwin, M.A. Yarmo, Z. Yaakob, A. B Mohamad, W.A.W. Daud, Mater. Res. Bull. 36(2001), 193.

[18] F. Cavani, F. Trifiro, A. Vaccari, Catal. Today 11(1991), 173.

[19] V. Rives, O. Prieto, A. Dubey, S. Kannan, J. Catal. 220(2003), 161.

[20] L. He, H. Berntsen, E. Ochoa-Ferna´ndez , C.J. Walmsley, E.A. Blekkan, D. Chen, Topic Catal. 52(2009), 206.

[21] V. Rives, in: V. Rives (Ed. ), Layered Double Hydroxides: Present and Future, Nova Science, New York, 2001, Ch. 8, p.229.

[22] O.W. Perez-Lopez, A. Senger, N.R. Marcilio, M.A. Lansarin, Appl. Catal. A: Gen. 303(2006), 234.

[23] J.T. Kloprogge, R.L. Frost, in: V. Rives (Ed. ), Layered Double Hydroxides: Present and Future, Nova Science, New York, 2001, Ch. 5, p.139.

[24] S. Ribet, D. Tichit, B. Coq, B. Ducourant, F. Morato, J. Solid State Chem. 142(1999), 382.

DOI: 10.1006/jssc.1998.8053

[25] N. A. Hermes, M. A. Lansarin, O. W. Perez-Lopez, Catal. Lett. 141(2011), 1018.

[26] L. Chmielarz, P. Kustrowski, A. Rafalska-Lasocha, R. Dziembaj, Thermochim. Acta 395(2003), 225.