Electrochemically Aged Ni Electrodes Supporting NiFe2O4 Nanoparticles for the Oxygen Evolution Reaction

  • Audrey K. Taylor
    Audrey K. Taylor
    Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
  • Irene Andreu
    Irene Andreu
    Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
    More by Irene Andreu
  • Mikayla Louie
    Mikayla Louie
    Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
  • , and 
  • Byron D. Gates*
    Byron D. Gates
    Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
    *Tel (778) 782-8066; Fax (778) 782-3765; e-mail [email protected]
Cite this: ACS Appl. Energy Mater. 2020, 3, 1, 387–400
Publication Date (Web):November 26, 2019
Copyright © 2019 American Chemical Society
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The preparation and screening of nanoparticle (NP) electrocatalysts for improved electrocatalytic oxygen evolution reactions (OER) will require a better understanding and optimization of the interactions between NPs and their support. First-row transition metals are used extensively as electrocatalysts in electrochemical energy storage and conversion systems. These electrocatalysts undergo transformations in their phase and surface morphology, which are induced by oxidizing potentials in the alkaline medium. A template-assisted approach to prepare electrodes with regular surface morphologies was used to monitor interactions between the NPs and their support both before and after prolonged electrochemical aging. A template-assisted method was used to prepare uniform surface inclusions of nickel ferrite (NiFe2O4) NPs on conductive nickel (Ni) supports for evaluation toward the OER. Electron microscopy-based methods were used to assess the resulting transformations of the embedded NPs within the Ni support matrix. Electrochemical aging of these textured electrodes was conducted by cyclic voltammetry (CV) techniques, which resulted in the growth of a 200 nm thick Ni oxy(hydroxide) film on the surfaces of the Ni supports. The growth of the active surface layer led to the encapsulation of the NiFe2O4 NPs as determined by correlative energy dispersive X-ray spectroscopy (EDS) techniques. The NP-modified electrodes exhibited reduced overpotentials and higher sustained current densities for the OER when compared to pure Ni supports. The well-defined morphologies and NP surface inclusions prepared by the template-assisted approach could serve as a platform for investigating additional NP–support interactions for electrocatalytic systems.

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  • Dynamic light scattering data, additional S/TEM and SEM images of the samples, additional EDS results, iR-corrected CV and LSV plots, additional CA measurements, tabulated results from three types of surface area measurements, and tabulated onset potentials and current densities for each type of electrode (PDF)

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Cited By

This article is cited by 6 publications.

  1. T. Saravanakumar, S. Sathiya Bama, T. Selvaraju, S. J. Sardhar Basha. Hexacyanoferrate-Complex-Derived NiFe2O4/CoFe2O4 Heterostructure–MWCNTs for an Efficient Oxygen Evolution Reaction. Energy & Fuels 2021, 35 (6) , 5372-5382. https://doi.org/10.1021/acs.energyfuels.0c04224
  2. Audrey K. Taylor, Tiffany Mou, Ana Sonea, Jiayue Chen, Brenden B. Yee, Byron D. Gates. Arrays of Microscale Linear Ridges with Self-Cleaning Functionality for the Oxygen Evolution Reaction. ACS Applied Materials & Interfaces 2021, 13 (2) , 2399-2413. https://doi.org/10.1021/acsami.0c15240
  3. Ding Cao, Yingying Dong, Ying Tang, Yaoyao Ye, Shui Hu, Zhenguo Guo, Xinhua Li. Amorphous Manganese–Cobalt Nanosheets as Efficient Catalysts for Hydrogen Evolution Reaction (HER). Catalysis Surveys from Asia 2021, 25 (4) , 437-444. https://doi.org/10.1007/s10563-021-09342-8
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  5. Zhe Zhang, Xiaodong Yan, Jiangyong Liu, Bing Liu, Zhi-Guo Gu. Tailoring the catalytic activity of nickel sites in NiFe 2 O 4 by cobalt substitution for highly enhanced oxygen evolution reaction. Sustainable Energy & Fuels 2021, 5 (10) , 2668-2677. https://doi.org/10.1039/D1SE00318F
  6. Anand Parkash. Doping of Fe on room-temperature-synthesized CoNi layered double hydroxide as an excellent bifunctional catalyst in alkaline media. Journal of the Iranian Chemical Society 2020, 17 (11) , 2943-2956. https://doi.org/10.1007/s13738-020-01970-7