The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.
Carbon Nanosheets Containing Discrete Co-Nx-By-C Active Sites for Efficient Oxygen Electrocatalysis and Rechargeable Zn–Air Batteries
Abstract
Structural and compositional engineering of atomic-scaled metal−N−C catalysts is important yet challenging in boosting their performance for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Here, boron (B)-doped Co−N−C active sites confined in hierarchical porous carbon sheets (denoted as Co-N,B-CSs) were obtained by a soft template self-assembly pyrolysis method. Significantly, the introduced B element gives an electron-deficient site that can activate the electron transfer around the Co−N−C sites, strengthen the interaction with oxygenated species, and thus accelerate reaction kinetics in the 4e − processed ORR and OER. As a result, the catalyst showed Pt-like ORR performance with a half-wave potential ( E 1/2 ) of 0.83 V versus ( vs ) RHE, a limiting current density of about 5.66 mA cm −2, and higher durability (almost no decay after 5000 cycles) than Pt/C catalysts. Moreover, a rechargeable Zn–air battery device comprising this Co-N,B-CSs catalyst shows superior performance with an open-circuit potential of ∼1.4 V, a peak power density of ∼100.4 mW cm −2, as well as excellent durability (128 cycles for 14 h of operation). DFT calculations further demonstrated that the coupling of Co-N x active sites with B atoms prefers to adsorb an O 2 molecule in side-on mode and accelerates ORR kinetics.
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Cites
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Self-citationRecent Progress in Cobalt‐Based Heterogeneous Catalysts for Electrochemical Water Splitting
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Defect Engineering on Electrode Materials for Rechargeable Batteries
Zhang, Y., Tao, L., Xie, C., Wang, D., Zou, Y., Chen, R., Wang, Y., Jia, C., & Wang, S. (2020) · Advanced Materials · doi:10.1002/adma.201905923 · Cited by 1,019
Oxygen Evolution Reaction in Alkaline Environment: Material Challenges and Solutions
Xie, X., Du, L., Yan, L., Park, S., Qiu, Y., Sokolowski, J., Wang, W., & Shao, Y. (2022) · Advanced Functional Materials · doi:10.1002/adfm.202110036 · Cited by 792
Single atom electrocatalysts supported on graphene or graphene-like carbons
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Highly Efficient Oxygen Reduction Reaction Activity of N‐Doped Carbon–Cobalt Boride Heterointerfaces
Jose, V., Nsanzimana, J. M. V., Hu, H., Choi, J., Wang, X., & Lee, J. (2021) · Advanced Energy Materials · doi:10.1002/aenm.202100157 · Cited by 294
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Metadata
- Authors
- Guo, Y., Yuan, P., Zhang, J., Hu, Y., Amiinu, I. S., Wang, X., Zhou, J., Xia, H., Song, Z., Xu, Q., & Mu, S.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-02-06
- Volume
- 12
- Issue
- 2
- Pages
- 1894-1901
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2784943348
- Cited by
- 486
- References
- 35
- FWCI
- 15.10
- Type
- journal article
- Language
- en
- Open access
- closed
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- Guo, Y., Yuan, P., Zhang, J., Hu, Y., Amiinu, I. S., Wang, X., Zhou, J., Xia, H., Song, Z., Xu, Q., & Mu, S. (2018). Carbon Nanosheets Containing Discrete Co-Nx-By-C Active Sites for Efficient Oxygen Electrocatalysis and Rechargeable Zn–Air Batteries. ACS Nano. https://doi.org/10.1021/acsnano.7b08721
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