2018 - Sustainable Industrial Processing Summit & Exhibition
4-7 November 2018, Rio Othon Palace, Rio De Janeiro, Brazil
Seven Nobel Laureates have already confirmed their attendance: Prof. Dan Shechtman, Prof. Sir Fraser Stoddart, Prof. Andre Geim, Prof. Thomas Steitz, Prof. Ada Yonath, Prof. Kurt Wüthrich and Prof. Ferid Murad. More than 400 Abstracts Submitted from about 60 Countries.
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    Nanostructured NiFe<sub>2</sub>O<sub>4</sub> 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;
    PAPER: 210/Energy/Regular (Oral)
    SCHEDULED: 11:20/Wed./Asian (60/3rd)



    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.

    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.