Formation of the honeycomb-like MgO/Mg(OH)2 structures with controlled shape and size of holes by molten salt electrolysis

Nataša Vukićević, Vesna S. Cvetković, Nebojša D. Nikolić, Goran Branković, Jovan Jovićević


Synthesis of the honeycomb-like MgO/Mg(OH)2 structures, with controlled shape and size of holes, by the electrolysis from magnesium nitrate hexahydrate melt onto glassy carbon is presented. The honeycomb-like structures were made up of holes, formed from detached hydrogen bubbles, surrounded by walls built up of thin intertwined needles. For the first time, it was shown that the honeycomb-like structures can be obtained by molten salt electrolysis and not exclusively by electrolysis from aqueous electrolytes. Analogies with the processes of honeycomb-like metal structures formation from aqueous electrolytes are presented and discussed. Rules established for the formation of these structures from aqueous electrolytes, such as the increase of number of holes, the decrease of holes size and coalescence of neighbouring hydrogen bubbles observed with increasing cathodic potential, appeared to be valid for the electrolysis of the molten salt used.


electrolysis; magnesium nitrate melt; honeycomb-like structure; hydrogen evolution; scanning electron microscope (SEM)

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Y. Ding, G. Zhang, H. Wu, B. Hai, L. Wang, Y. Qian, Chem. Mater. 13 (2001) 435 (

N. M. Julkapli, S. Bagheri, Rev. Inorg. Chem. 36 (2016) 1 (

G. Zou, R. Liu, W. Chen, Mater. Lett. 61 (2007) 1990 (

G. Zou, W. Chen, R. Liu, Z. Xu, Mater. Chem. Phys. 107 (2008) 85 (

M. Dinamani, P. V. Kamath, J. Appl. Electrochem. 34 (2004) 899 (

C.-F. Li, W.-H. Ho, S.-K. Yen, J. Electrochem. Soc. 156 (2009) E29 (

V. S. Cvetković, N. Jovićević, J. N. Jovićević, Nanoscale Magnesium Oxides Deposited onto Vitreous Carbon from Nitrate Melts, in 62th Annu. Meet. Int. Soc. Electrochem., ISE, Niigata, Japan, 2011, pp. s03-P-013.

V. S. Cvetković, N. M. Vukićević, N. D. Nikolić, G. Branković, J. N. Jovićević, Electrochemical Formation of Magnesium Oxide/Hydroxide structures, in Meet. Point Sci. Pract. Fields Corros. Mater. Environ. Prot. XIX YuCorr Int. Conf., Tara, Serbia, 2017, p. 183

V. Cvetković, N. Vukićević, J. Stevanović, J. Jovićević, Magnesium oxide nanowhiskers electrochemically synthetized from nitrate melts, in 48th Int. Oct. Conf., TF, Bor, Bor, Serbia, 2016, pp. 301–305

V. S. Cvetković, N. M. Vukićević, N. D. Nikolić, G. Branković, T. S. Barudžija, J. N. Jovićević, Electrochim. Acta 268 (2018) 494 (

H.-C. Shin, J. Dong, M. Liu, Adv. Mater. 15 (2003) 1610 (

N. D. Nikolić, Porous Copper Electrodes Formed by the Constant and Periodically Changing Regimes of Electrolysis, in S. S. Djokić (Ed.), Electrochem. Prod. Met. Powders, Ser. Mod. Asp. Electrochem., Springer, 2012, pp. 187–249 (ISBN 978-1-4614-2380-5)

K. I. Popov, S. S. Djokić, N. D. Nikolić, V. D. Jović, Morphology of Electro¬chemically and Chemically Deposited Metals, Springer International Publishing, 2016 (ISBN 978-3-319-26073-0)

B. J. Plowman, L. A. Jones, S. K. Bhargava, Chem. Commun. 51 (2015) 4331 (

M. Wang, X. Yu, Z. Wang, X. Gong, Z. Guo, L. Dai, J. Mater. Chem. A 5 (2017) 9488 (

N. D. Nikolić, K. I. Popov, Lj. J. Pavlović, M. G. Pavlović, J. Electroanal. Chem. 588 (2006) 88 (

N. Nikolić, Lj. Pavlović, G. Branković, M. Pavlović, K. Popov, J. Serb. Chem. Soc. 73 (2008) 753 (

H. Zhang, Y. Ye, R. Shen, C. Ru, Y. Hu, J. Electrochem. Soc. 160 (2013) D441 (

X. Yu, M. Wang, Z. Wang, X. Gong, Z. Guo, Appl. Surf. Sci. 360 (2016) 502 (

S. Cherevko, C.-H. Chung, Electrochim. Acta 55 (2010) 6383 (

S. Cherevko, X. Xing, C.-H. Chung, Electrochem. Commun. 12 (2010) 467 (

S. Cherevko, C.-H. Chung, Electrochem. Commun. 13 (2011) 16 (

B. J. Plowman, A. P. O’Mullane, P. Selvakannan, S. K. Bhargava, Chem. Commun. 46 (2010) 9182 (

S. Cherevko, X. Xing, C.-H. Chung, Appl. Surf. Sci. 257 (2011) 8054 (

A. Ott, L. A. Jones, S. K. Bhargava, Electrochem. Commun. 13 (2011) 1248 (

N. D. Nikolić, L. J. Pavlović, M. G. Pavlović, K. I. Popov, Electrochim. Acta 52 (2007) 8096 (

V. S. Cvetković, L. J. Bjelica, N. M. Vukićević, J. N. Jovićević, Chem. Ind. Chem. Eng. Q. 21 (2015) 527 (

V. S. Cvetković, J. N. Jovićević, L. J. Bjelica, Kov. Mater. 54 (2016) 321 (

V. S. Cvetković, N. Jovićević, J. S. Stevanović, M. G. Pavlović, N. M. Vukićević, Z. Stevanović, J. N. Jovićević, Metals 7 (2017) (

D. A. Tkalenko, Electrokhimiya Nitratnykh Rasplavov, Naukova Dumka, Kiev, Ukraine, 1983

R. Hashaikeh, J. A. Szpunar, J. Phys. Conf. Ser. 165 (2009) 012008 (

J. E. Vindstad, H. Mediaas, T. Østvold, L. Skattebøl, C. N. Rosendahl, Acta Chem. Scand. 51 (1997) 1192 (

R. Winand, Electrochim. Acta 39 (1994) 1091 (

N. Nikolić, P. Zivković, G. Branković, M. Pavlović, J. Serb. Chem. Soc. 82 (2017) 539 (

V. Maksimović, N. Nikolić, V. Kusigerski, J. Blanuša, J. Serb. Chem. Soc. 80 (2015) 197 (


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