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Morphology Dynamics of Single-Layered Ni(OH)2/NiOOH Nanosheets and Subsequent Fe Incorporation Studied by in Situ Electrochemical Atomic Force Microscopy
Open accessAbstract
Nickel (oxy)hydroxide-based (NiO x H y ) materials are widely used for energy storage and conversion devices. Understanding dynamic processes at the solid–liquid interface of nickel (oxy)hydroxide is important to improve reaction kinetics and efficiencies. In this study, in situ electrochemical atomic force microscopy (EC-AFM) was used to directly investigate dynamic changes of single-layered Ni(OH) 2 nanosheets during electrochemistry measurements. Reconstruction of Ni(OH) 2 nanosheets, along with insertion of ions from the electrolyte, results in an increase of the volume by 56% and redox capacity by 300%. We also directly observe Fe cations adsorb and integrate heterogeneously into or onto the nanosheets as a function of applied potential, further increasing apparent volume. Our findings are important for the fundamental understanding of NiO x H y -based supercapacitors and oxygen-evolution catalysts, illustrating the dynamic nature of Ni-based nanostructures under electrochemical conditions.
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Cites
Ni(OH) 2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials
Wang, H., Casalongue, H. S., Liang, Y., & Dai, H. (2010) · Journal of the American Chemical Society · doi:10.1021/ja102267j · Cited by 2,042
Cited by
Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting
Quan, L., Jiang, H., Mei, G., Sun, Y., & You, B. (2024) · Chemical Reviews · doi:10.1021/acs.chemrev.3c00332 · Cited by 874
Correlative operando microscopy of oxygen evolution electrocatalysts
Mefford, J. T., Akbashev, A. R., Kang, M., Bentley, C. L., Gent, W. E., Deng, H. D., Alsem, D. H., Yu, Y.-S., Salmon, N. J., Shapiro, D. A., et al. (2021) · Nature · doi:10.1038/s41586-021-03454-x · Cited by 699
Fe-Based Electrocatalysts for Oxygen Evolution Reaction: Progress and Perspectives
Feng, C., Faheem, M. B., Fu, J., Xiao, Y., Li, C., & Li, Y. (2020) · ACS Catalysis · doi:10.1021/acscatal.9b05445 · Cited by 587
Selvam, N. C. S., Du, L., Xia, B. Y., Yoo, P. J., & You, B. (2021) · Advanced Functional Materials · doi:10.1002/adfm.202008190 · Cited by 289
Activated Ni–OH Bonds in a Catalyst Facilitates the Nucleophile Oxidation Reaction
Chen, W., Wang, Y., Wu, B., Shi, J., Li, Y., Xu, L., Xie, C., Zhou, W., Huang, Y., Wang, T., et al. (2022) · Advanced Materials · doi:10.1002/adma.202105320 · Cited by 200
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Metadata
- Authors
- Deng, J., Nellist, M. R., Stevens, M. B., Dette, C., Wang, Y., & Boettcher, S. W.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-10-11
- Volume
- 17
- Issue
- 11
- Pages
- 6922-6926
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2763995643
- Cited by
- 174
- References
- 1
- FWCI
- 4.18
- Type
- journal article
- Language
- en
- Open access
- green
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- Deng, J., Nellist, M. R., Stevens, M. B., Dette, C., Wang, Y., & Boettcher, S. W. (2017). Morphology Dynamics of Single-Layered Ni(OH)2/NiOOH Nanosheets and Subsequent Fe Incorporation Studied by in Situ Electrochemical Atomic Force Microscopy. Nano Letters. https://doi.org/10.1021/acs.nanolett.7b03313
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