The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Quantifying the density and utilization of active sites in non-precious metal oxygen electroreduction catalysts
Open accessAbstract
Carbon materials doped with transition metal and nitrogen are highly active, non-precious metal catalysts for the electrochemical conversion of molecular oxygen in fuel cells, metal air batteries, and electrolytic processes. However, accurate measurement of their intrinsic turn-over frequency and active-site density based on metal centres in bulk and surface has remained difficult to date, which has hampered a more rational catalyst design. Here we report a successful quantification of bulk and surface-based active-site density and associated turn-over frequency values of mono- and bimetallic Fe/N-doped carbons using a combination of chemisorption, desorption and 57 Fe Mössbauer spectroscopy techniques. Our general approach yields an experimental descriptor for the intrinsic activity and the active-site utilization, aiding in the catalyst development process and enabling a previously unachieved level of understanding of reactivity trends owing to a deconvolution of site density and intrinsic activity.
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Citations
Cites
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
Wu, G., More, K. L., Johnston, C. M., & Zelenay, P. (2011) · Science · doi:10.1126/science.1200832 · Cited by 3,984
Cited by
Fei, H., Dong, J., Feng, Y., Allen, C. S., Wan, C., Volosskiy, B., Li, M., Zhao, Z., Wang, Y., Sun, H., et al. (2018) · Nature Catalysis · doi:10.1038/s41929-017-0008-y · Cited by 1,973
Wan, X., Liu, X., Li, Y., Yu, R., Zheng, L., Yan, W., Wang, H., Xu, M., & Shui, J. (2019) · Nature Catalysis · doi:10.1038/s41929-019-0237-3 · Cited by 1,379
Ju, W., Bagger, A., Hao, G.-P., Varela, A. S., Sinev, I., Bon, V., Roldan Cuenya, B., Kaskel, S., Rossmeisl, J., & Strasser, P. (2017) · Nature Communications · doi:10.1038/s41467-017-01035-z · Cited by 1,203
Self-citationNonprecious Metal Catalysts for Oxygen Reduction in Heterogeneous Aqueous Systems
Gewirth, A. A., Varnell, J. A., & DiAscro, A. M. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00335 · Cited by 773
He, Y., Liu, S., Priest, C., Shi, Q., & Wu, G. (2020) · Chemical Society Reviews · doi:10.1039/c9cs00903e · Cited by 771
Metadata
- Authors
- Sahraie, N. R., Kramm, U. I., Steinberg, J., Zhang, Y., Thomas, A., Reier, T., Paraknowitsch, J.-P., & Strasser, P.
- Venue
- Nature Communications
- Published
- 2015-10-21
- Volume
- 6
- Issue
- 1
- Pages
- 8618-8618
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2263166478
- Cited by
- 568
- References
- 1
- FWCI
- 13.69
- Type
- journal article
- Language
- en
- Open access
- gold
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