The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Hierarchical ZnxCo3–xO4 Nanoarrays with High Activity for Electrocatalytic Oxygen Evolution
Abstract
The design and fabrication of efficient and inexpensive electrodes for use in the oxygen evolution reaction (OER) is essential for energy-conversion technologies. In this study, high OER performance is achieved using novel hierarchical Zn x Co 3– x O 4 nanostructures constructed with small secondary nanoneedles grown on primary rhombus-shaped pillar arrays. The nanostructures have large roughness factor, high porosity, and high active-site density. Only a small overpotential of ∼0.32 V is needed for a current density of 10 mA/cm 2 with a Tafel slope of 51 mV/decade. The nanostructures are also found to perform significantly better than pure Co 3 O 4 and a commercial Ir/C catalyst and to perform similarly to the best OER catalysts that have been reported for alkaline media. These merits combined with the satisfactory stability of the nanostructures indicate that they are promising electrodes for water oxidation.
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Metadata
- Authors
- Liu, X., Chang, Z., Luo, L., Xu, T., Lei, X., Liu, J., & Sun, X.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-02-25
- Volume
- 26
- Issue
- 5
- Pages
- 1889-1895
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W1978622374
- Cited by
- 436
- References
- 1
- FWCI
- 20.30
- Type
- journal article
- Language
- en
- Open access
- closed
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