The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Active Surface Area and Intrinsic Catalytic Oxygen Evolution Reactivity of NiFe LDH at Reactive Electrode Potentials Using Capacitances
Abstract
Determination of the electrochemically active surface area (ECSA) is essential in electrocatalysis to provide surface normalized intrinsic catalytic activity. Conventionally, ECSAs of metal oxides and hydroxides are estimated using double layer capacitance (C dl ) measured at nonfaradaic potential windows. However, in the case of Ni-based hydroxide catalysts for the oxygen evolution reaction (OER), the nonfaradaic potential region before the Ni(II) oxidation peak is nonconductive, which hinders accurate electrochemical measurements. To overcome this problem, in this work, we have investigated the use of electrochemical impedance spectroscopy (EIS) at reactive OER potentials to extract the capacitance that is hypothesized to arise due to reactive OER intermediates (O*, OH*, OOH*) adsorbed on the catalyst surface. This allowed the estimation of ECSA and intrinsic activity of NiFe layered double hydroxide (NiFe LDH), the most active, state-of-the-art OER electrocatalyst in alkaline media. We analyzed the OER adsorbates capacitance (C a ) on NiFe LDH and Ni(OH) 2 at different electrode potentials and identified a suitable potential range for accurate ECSA evaluation. Finally, we validated our method and the choice of potential range through rigorous catalyst loading and support studies.
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Cites
Benchmarking Heterogeneous Electrocatalysts for the Oxygen Evolution Reaction
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An Advanced Ni–Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation
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An Investigation of Thin-Film Ni–Fe Oxide Catalysts for the Electrochemical Evolution of Oxygen
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Identification of Highly Active Fe Sites in (Ni,Fe)OOH for Electrocatalytic Water Splitting
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Self-citationElectrocatalytic oxygen evolution reaction for energy conversion and storage: A comprehensive review
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Cited by
Li, Z., Lin, G., Wang, L., Lee, H., Du, J., Tang, T., Ding, G., Ren, R., Li, W., Cao, X., et al. (2024) · Nature Catalysis · doi:10.1038/s41929-024-01209-1 · Cited by 440
Self-citationShi, G., Tano, T., Tryk, D. A., Iiyama, A., Uchida, M., Terao, K., Osada, H., Yamaguchi, M., Tamoto, K., & Kakinuma, K. (2024) · ACS Catalysis · doi:10.1021/acscatal.4c01685 · Cited by 56
Huang, H., Chen, C., Chang, C., Lai, F., Liu, S., Fu, H., Chen, Y., Li, H., Huang, W., Zhang, N., et al. (2024) · Advanced Materials · doi:10.1002/adma.202314142 · Cited by 40
Yang, G., Fang, D., Lin, Y., Wang, W., Fu, Y., Gao, D., Mao, Y., Wang, X., & Li, J. (2025) · Journal of Materials Chemistry A · doi:10.1039/d4ta08916b · Cited by 9
Metadata
- Authors
- Jeon, S. S., Kang, P. W., Klingenhof, M., Lee, H., Dionigi, F., & Strasser, P.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2023-01-04
- Volume
- 13
- Issue
- 2
- Pages
- 1186-1196
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W4313574660
- Cited by
- 316
- References
- 37
- FWCI
- 14.79
- Type
- journal article
- Language
- en
- Open access
- closed
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