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An Isolated Zinc–Cobalt Atomic Pair for Highly Active and Durable Oxygen Reduction
Abstract
A competitive complexation strategy has been developed to construct a novel electrocatalyst with Zn‐Co atomic pairs coordinated on N doped carbon support (Zn/CoN‐C). Such architecture offers enhanced binding ability of O 2, significantly elongates the O−O length (from 1.23 Å to 1.42 Å), and thus facilitates the cleavage of O−O bond, showing a theoretical overpotential of 0.335 V during ORR process. As a result, the Zn/CoN‐C catalyst exhibits outstanding ORR performance in both alkaline and acid conditions with a half‐wave potential of 0.861 and 0.796 V respectively. The in situ XANES analysis suggests Co as the active center during the ORR. The assembled zinc–air battery with Zn/CoN‐C as cathode catalyst presents a maximum power density of 230 mW cm−2 along with excellent operation durability. The excellent catalytic activity in acid is also verified by H 2/O 2 fuel cell tests (peak power density of 705 mW cm−2).
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Citations
Cited by
Emerging Dual‐Atomic‐Site Catalysts for Efficient Energy Catalysis
Zhang, W., Chao, Y., Zhang, W., Zhou, J., Lv, F., Wang, K., Lin, F., Luo, H., Li, J., Tong, M., et al. (2021) · Advanced Materials · doi:10.1002/adma.202102576 · Cited by 528
Electrocatalysis of Single-Atom Sites: Impacts of Atomic Coordination
Lu, B., Liu, Q., & Chen, S. (2020) · ACS Catalysis · doi:10.1021/acscatal.0c01950 · Cited by 394
Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions
Jiang, Z., Sun, W., Shang, H., Chen, W., Sun, T., Li, H., Dong, J., Zhou, J., Li, Z., Wang, Y., et al. (2019) · Energy & Environmental Science · doi:10.1039/c9ee02974e · Cited by 380
Self-citationPan, Y., Zhang, C., Liu, Z., Chen, C., & Li, Y. (2020) · Matter · doi:10.1016/j.matt.2019.11.014 · Cited by 341
A durable half-metallic diatomic catalyst for efficient oxygen reduction
Li, H., Di, S., Niu, P., Wang, S., Wang, J., & Li, L. (2022) · Energy & Environmental Science · doi:10.1039/d1ee03194e · Cited by 325
Metadata
- Authors
- Lu, Z., Wang, B., Hu, Y., Liu, W., Zhao, Y., Yang, R., Li, Z., Luo, J., Chi, B., Jiang, Z., Li, M., Mu, S., Liao, S., Zhang, J., & Sun, X.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2019-02-06
- Volume
- 58
- Issue
- 9
- Pages
- 2622-2626
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2929509523
- Cited by
- 675
- References
- 0
- FWCI
- 18.29
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lu, Z., Wang, B., Hu, Y., Liu, W., Zhao, Y., Yang, R., Li, Z., Luo, J., Chi, B., Jiang, Z., Li, M., Mu, S., Liao, S., Zhang, J., & Sun, X. (2019). An Isolated Zinc–Cobalt Atomic Pair for Highly Active and Durable Oxygen Reduction. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201810175
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