2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 9. Energy Production, Secondary Battery

Editors:F. Kongoli, H. Dodds, M. Mauntz, T. Turna, V. Kumar, K. Aifantis
Publisher:Flogen Star OUTREACH
Publication Year:2018
Pages:170 pages
ISBN:978-1-987820-98-0
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Nanostructured NiFe2O4 Composites as Electrocatalysts for Hydrogen Evolution Reaction (HER) in Acidic Solutions

    Tshimangadzo Saddam Munonde1; Philiswa Nomngongo2; Haitao Zheng1; Mphoma Matseke1;
    1THE COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH (CSIR), Pretoria, South Africa; 2UNIVERSITY OF JOHANNESBURG, Johannesburg, South Africa;
    Type of Paper: Regular
    Id Paper: 210
    Topic: 17

    Abstract:

    Water electrolysis has recently progressed as the most efficient and attractive way of producing hydrogen [1]. However, to ensure the effective production of hydrogen yielding high current densities at a low overpotential, a catalyst is needed. Present advancements in the water electrolysis process have opened pathways leading to the synthesis of a variety of non-precious materials as electrocatalysts, in place of Pt based catalyst [2,3]. In this work, we present the hydrothermal synthesis of the non-precious nickel ferrite (NiFe<sub>2</sub>O<sub>4</sub>) nanocomposites for hydrogen evolution reaction (HER). To increase the conductivity and therefore enhancing the activity of NiFe<sub>2</sub>O<sub>4</sub> catalyst, the various carbon materials (carbon black, carbon nanofibers, etc.) were composited with NiFe<sub>2</sub>O<sub>4</sub> nanoparticles. Post-treatment for NiFe<sub>2</sub>O<sub>4</sub> composites were applied to further boost the catalytic activity of the NiFe<sub>2</sub>O<sub>4</sub> composites. The composites show comparable activity and durability with commercial Pt/C for HER. The synthesized NiFe<sub>2</sub>O<sub>4</sub> material was characterized using the XRD, FTIR, SEM and TEM, EDX and XPS etc. techniques.

    Keywords:

    Electrochemical; Energy; Fuels; Materials; Production;

    References:

    [1] Shi, Y., Zhang, B. (2016).. Chem. Soc. Rev, 45(6), 1529-1541.
    [2] Lv, H., Xi, Z., Chen, Z., Guo, S., Yu, Y., Zhu, W., Mu, S. (2015). J. Am. Chem.Soc, 137(18), 5859-5862.
    [3] Xu, X., Sun, Y., Qiao, W., Zhang, X., Chen, X., Song, X., Du, Y. (2017). Appl. Surf. Sci., 396, 1520-1527.

    Cite this article as:

    Munonde T, Nomngongo P, Zheng H, Matseke M. (2018). Nanostructured NiFe2O4 Composites as Electrocatalysts for Hydrogen Evolution Reaction (HER) in Acidic Solutions. In F. Kongoli, H. Dodds, M. Mauntz, T. Turna, V. Kumar, K. Aifantis (Eds.), Sustainable Industrial Processing Summit SIPS2018 Volume 9. Energy Production, Secondary Battery (pp. 63-64). Montreal, Canada: FLOGEN Star Outreach