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Dual-Phase Spinel MnCo2O4and Spinel MnCo2O4/Nanocarbon Hybrids for Electrocatalytic Oxygen Reduction and Evolution
Open accessAbstract
Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are essential reactions for energy-storage and -conversion devices relying on oxygen electrochemistry. High-performance, nonprecious metal-based hybrid catalysts are developed from postsynthesis integration of dual-phase spinel MnCo2O4 (dp-MnCo2O4) nanocrystals with nanocarbon materials, e.g., carbon nanotube (CNT) and nitrogen-doped reduced graphene oxide (N-rGO). The synergic covalent coupling between dp-MnCo2O4 and nanocarbons effectively enhances both the bifunctional ORR and OER activities of the spinel/nanocarbon hybrid catalysts. The dp-MnCo2O4/N-rGO hybrid catalysts exhibited comparable ORR activity and superior OER activity compared to commercial 30 wt % platinum supported on carbon black (Pt/C). An electrically rechargeable zinc-air battery using dp-MnCo2O4/CNT hybrid catalysts on the cathode was successfully operated for 64 discharge-charge cycles (or 768 h equivalent), significantly outperforming the Pt/C counterpart, which could only survive up to 108 h under similar conditions.
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Cites
Nanostructured Pt-alloy electrocatalysts for PEM fuel cell oxygen reduction reaction
Bing, Y., Liu, H., Zhang, L., Ghosh, D., & Zhang, J. (2010) · Chemical Society Reviews · doi:10.1039/b912552c · Cited by 1,154
Cited by
Transition‐Metal (Co, Ni, and Fe)‐Based Electrocatalysts for the Water Oxidation Reaction
Han, L., Dong, S., & Wang, E. (2016) · Advanced Materials · doi:10.1002/adma.201602270 · Cited by 1,769
Oxygen Reduction in Alkaline Media: From Mechanisms to Recent Advances of Catalysts
Ge, X., Sumboja, A., Wuu, D., An, T., Li, B., Goh, F. W. T., Hor, T. S. A., Zong, Y., & Liu, Z. (2015) · ACS Catalysis · doi:10.1021/acscatal.5b00524 · Cited by 1,341
Self-citationOsgood, H., Devaguptapu, S. V., Xu, H., Cho, J., & Wu, G. (2016) · Nano Today · doi:10.1016/j.nantod.2016.09.001 · Cited by 959
Cheng, H., Li, M., Su, C., Li, N., & Liu, Z. (2017) · Advanced Functional Materials · doi:10.1002/adfm.201701833 · Cited by 384
Self-citationRecent Advances in Non‐Noble Bifunctional Oxygen Electrocatalysts toward Large‐Scale Production
Zeng, K., Zheng, X., Li, C., Yan, J., Tian, J., Jin, C., Strasser, P., & Yang, R. (2020) · Advanced Functional Materials · doi:10.1002/adfm.202000503 · Cited by 365
Metadata
- Authors
- Ge, X., Liu, Y., Goh, F. W. T., Hor, T. S. A., Zong, Y., Xiao, P., Zhang, Z., Lim, S. H., Li, B., Wang, X., & Liu, Z.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-07-31
- Volume
- 6
- Issue
- 15
- Pages
- 12684-12691
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2274628565
- Cited by
- 370
- References
- 1
- FWCI
- 14.30
- Type
- journal article
- Language
- en
- Open access
- green
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- Ge, X., Liu, Y., Goh, F. W. T., Hor, T. S. A., Zong, Y., Xiao, P., Zhang, Z., Lim, S. H., Li, B., Wang, X., & Liu, Z. (2014). Dual-Phase Spinel MnCo2O4and Spinel MnCo2O4/Nanocarbon Hybrids for Electrocatalytic Oxygen Reduction and Evolution. ACS Applied Materials & Interfaces. https://doi.org/10.1021/am502675c
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