The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.
Identifying Active Sites of Nitrogen‐Doped Carbon Materials for the CO2 Reduction Reaction
Abstract
Nitrogen‐doped carbon materials are proposed as promising electrocatalysts for the carbon dioxide reduction reaction (CRR), which is essential for renewable energy conversion and environmental remediation. Unfortunately, the unclear cognition on the CRR active site (or sites) hinders further development of high‐performance electrocatalysts. Herein, a series of 3D nitrogen‐doped graphene nanoribbon networks (N‐GRW) with tunable nitrogen dopants are designed to unravel the site‐dependent CRR activity/selectivity. The N‐GRW catalyst exhibits superior CO 2 electrochemical reduction activity, reaching a specific current of 15.4 A g catalyst−1 with CO Faradaic efficiency of 87.6% at a mild overpotential of 0.49 V. Based on X‐ray photoelectron spectroscopy measurements, it is experimentally demonstrated that the pyridinic N site in N‐GRW serves as the active site for CRR. In addition, the Gibbs free energy calculated by density functional theory further illustrates the pyridinic N as a more favorable site for the CO 2 adsorption, *COOH formation, and *CO removal in CO 2 reduction.
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Metadata
- Authors
- Liu, S., Yang, H., Huang, X., Liu, L., Cai, W., Gao, J., Li, X., Zhang, T., Huang, Y., & Liu, B.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2018-04-14
- Volume
- 28
- Issue
- 21
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2800047745
- Cited by
- 331
- References
- 57
- FWCI
- 9.95
- Type
- journal article
- Language
- en
- Open access
- closed
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