Nickel-Cobalt Double Hydroxide Decorated Carbon Nanotubes via Aqueous Electrophoretic Deposition towards Catalytic Glucose Detection

Abstract:

In this work, we present a facile technique based on electrophoretic deposition (EPD) to produce transition metal hydroxide decorated carbon nanotubes (CNT) for electrochemical applications. We specifically explore the performance of nickel-cobalt hydroxides given their high activity, conductivity and stability as compared to the individual hydroxides. We exploit the high local pH at the negative electrodes during water-based EPD to form nanoparticles of nickel-cobalt hydroxides in situ on the CNT surface. We focus our work here on obtaining functional and conductive deposits on CNTs. The hydrophilic binderless deposits of Ni-Co double hydroxide decorated CNTs obtained here are used for non-enzymatic glucose detection. XPS data and electrochemical testing reveal difference in the deposited double hydroxide based on chronology of charging salt addition even at the same ratio. When cobalt and nickel salts are sequentially added at a ratio of 1:1, the deposited double hydroxides show excellent glucose sensitivity of ~3300μA/mM.cm² at applied potential of 0.55V vs. Ag/AgCl reference electrode.

• Periodical: Key Engineering Materials (Volume 654)
• Pages: 70-75
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.654.70
• Online since: July 2015
• Authors: Anirudh Balram, Jie Chao Jiang, Moisés Hernández Fernández, Dennis De Sheng Meng*
• Keywords: Carbon Nanotube (CN), Electrophoretic Deposition (EPD), EPD, Glucose Detection, Glucose Sensor, Nickel-Cobalt Hydroxide

References

[1] Toghill, K.E. and R.G. Compton, Electrochemical non-enzymatic glucose sensors: a perspective and an evaluation. Int. J. Electrochem. Sci, 2010. 5(9): pp.1246-1301.

DOI: 10.1016/s1452-3981(23)15359-4

[2] Gao, Z. -D., et al., One-Step to Prepare Self-Organized Nanoporous NiO/TiO2 Layers and its Use in Non-Enzymatic Glucose Sensing. Sci. Rep., 2013. 3.

DOI: 10.1038/srep03323

[3] Lang, X. -Y., et al., Nanoporous gold supported cobalt oxide microelectrodes as high-performance electrochemical biosensors. Nat. Commun., 2013. 4.

DOI: 10.1038/ncomms3169

[4] Wang, G., et al., Free-standing nickel oxide nanoflake arrays: synthesis and application for highly sensitive non-enzymatic glucose sensors. Nanoscale, 2012. 4(10): pp.3123-3127.

DOI: 10.1039/c2nr30302g

[5] Salunkhe, R.R., et al., Aligned nickel-cobalt hydroxide nanorod arrays for electrochemical pseudocapacitor applications. R. Soc. Chem. Adv., 2012. 2(8): pp.3190-3193.

DOI: 10.1039/c2ra01220k

[6] Mahajan, S.V., et al., Carbon nanotube–nanocrystal heterostructures fabricated by electrophoretic deposition. Nanotechnology, 2008. 19(19): p.195301.

DOI: 10.1088/0957-4484/19/19/195301

[7] Subramanian, P., et al., Preparation of reduced graphene oxide–Ni (OH) 2 composites by electrophoretic deposition: application for non-enzymatic glucose sensing. J. Mater. Chem. A, 2014. 2(15): pp.5525-5533.

DOI: 10.1039/c4ta00123k

[8] Wu, M. -S., et al., Formation of nano-scaled crevices and spacers in NiO-attached graphene oxide nanosheets for supercapacitors. J. Mater. Chem., 2012. 22(6): pp.2442-2448.

DOI: 10.1039/c1jm13818a

[9] Besra, L., et al., Experimental verification of pH localization mechanism of particle consolidation at the electrode/solution interface and its application to pulsed DC electrophoretic deposition (EPD). J. Eur. Ceram. Soc., 2010. 30(5): pp.1187-1193.

DOI: 10.1016/j.jeurceramsoc.2009.07.004

[10] Ma, R., et al., Topochemical Synthesis of Co−Fe Layered Double Hydroxides at Varied Fe/Co Ratios: Unique Intercalation of Triiodide and Its Profound Effect. J. Am. Chem. Soc., 2010. 133(3): pp.613-620.

DOI: 10.1021/ja1087216

[11] Roginskaya, Y.E., et al., Characterization of Bulk and Surface Composition of CoxNi1-xOy Mixed Oxides for Electrocatalysis. Langmuir, 1997. 13(17): pp.4621-4627.

[12] Li, J., et al., The role of iron oxide in the highly effective Fe-modified Co3O4 catalyst for low-temperature CO oxidation. R. Soc. Chem. Adv., 2013. 3(30): pp.12409-12416.

DOI: 10.1039/c3ra41272e