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Electrocatalytic Water Oxidation at Neutral pH by a Nanostructured Co(PO3)2 Anode
Abstract
Cobalt metaphosphate Co(PO 3)2 nanoparticles are prepared via the thermolytic molecular precursor (TMP) method. A Ni form electrode decorated with Co(PO 3)2 nanoparticles is evaluated as an anode for water oxidation electrocatalysis in pH 6.4 phosphate‐buffered water. Catalytic onset occurs at an overpotential of ca. 310 mV, which is 100 mV lower than that observed for Co 3 O 4 nanoparticles, with a comparable surface area under identical conditions. A per‐metal turnover frequency (TOF) of 0.10–0.21 s−1 is observed at an overpotential, η, of 440 mV, which is comparable to the highest rate reported for a first‐row metal heterogeneous catalyst. Post‐catalytic characterization of the catalyst resting state by X‐ray photoelectron spectroscopy (XPS) and Raman spectroscopy reveals that surface rearrangement occurs, resulting in an oxide‐like surface overlayer.
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Cites
Adsorption of Gases in Multimolecular Layers
Brunauer, S., Emmett, P. H., & Teller, E. (1938) · Journal of the American Chemical Society · doi:10.1021/ja01269a023 · Cited by 28,156
Cited by
Electrocatalysis for the oxygen evolution reaction: recent development and future perspectives
Suen, N.-T., Hung, S.-F., Quan, Q., Zhang, N., Xu, Y.-J., & Chen, H. M. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00328a · Cited by 6,307
Recent Progress in Cobalt‐Based Heterogeneous Catalysts for Electrochemical Water Splitting
Wang, J., Cui, W., Liu, Q., Xing, Z., Asiri, A. M., & Sun, X. (2016) · Advanced Materials · doi:10.1002/adma.201502696 · Cited by 2,446
Selenide‐Based Electrocatalysts and Scaffolds for Water Oxidation Applications
Xia, C., Jiang, Q., Zhao, C., Hedhili, M. N., & Alshareef, H. N. (2016) · Advanced Materials · doi:10.1002/adma.201503906 · Cited by 614
Lu, X.-F., Liao, P.-Q., Wang, J.-W., Wu, J.-X., Chen, X.-W., He, C.-T., Zhang, J.-P., Li, G.-R., & Chen, X.-M. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b03125 · Cited by 538
Zhang, B., Xiao, C., Xie, S., Liang, J., Chen, X., & Tang, Y. (2016) · Chemistry of Materials · doi:10.1021/acs.chemmater.6b02610 · Cited by 509
Metadata
- Authors
- Ahn, H. S., & Tilley, T. D.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2012-08-29
- Volume
- 23
- Issue
- 2
- Pages
- 227-233
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W1999187247
- Cited by
- 249
- References
- 1
- FWCI
- 4.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ahn, H. S., & Tilley, T. D. (2013). Electrocatalytic Water Oxidation at Neutral pH by a Nanostructured Co(PO3)2 Anode. Advanced Functional Materials. https://doi.org/10.1002/adfm.201200920
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