The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.
Sub-2 nm Ultrasmall High-Entropy Alloy Nanoparticles for Extremely Superior Electrocatalytic Hydrogen Evolution
Abstract
The development of sufficiently effective catalysts with extremely superior performance for electrocatalytic hydrogen production still remains a formidable challenge, especially in acidic media. Here, we report ultrasmall high-entropy alloy (us-HEA) nanoparticles (NPs) with the best-level performance for hydrogen evolution reaction (HER). The us-HEA (NiCoFePtRh) NPs show an average diameter of 1.68 nm, which is the smallest size in the reported HEAs. The atomic structure, coordinational structure, and electronic structure of the us-HEAs were comprehensively clarified. The us-HEA/C achieves an ultrahigh mass activity of 28.3 A mg –1 noble metals at −0.05 V (vs the reversible hydrogen electrode, RHE) for HER in 0.5 M H 2 SO 4 solution, which is 40.4 and 74.5 times higher than those of the commercial Pt/C and Rh/C catalysts, respectively. Moreover, the us-HEA/C demonstrates an ultrahigh turnover frequency of 30.1 s –1 at 50 mV overpotential (41.8 times higher than that of the Pt/C catalyst) and excellent stability with no decay after 10 000 cycles. Operando X-ray absorption spectroscopy and theoretical calculations reveal the actual active sites, tunable electronic structures, and a synergistic effect among five elements, which endow significantly enhanced HER activity. This work not only engineers a general and scalable strategy for synthesizing us-HEA NPs and elucidates the complex structural information and catalytic mechanisms of multielement HEA system in depth, but also highlights HEAs as sufficiently advanced catalysts and accelerates the research of HEAs in energy-related applications.
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Cites
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
Kresse, G., & Furthmüller, J. (1996) · Physical Review B · doi:10.1103/physrevb.54.11169 · Cited by 123,652
Special points for Brillouin-zone integrations
Monkhorst, H. J., & Pack, J. D. (1976) · Physical Review B · doi:10.1103/physrevb.13.5188 · Cited by 71,721
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Nørskov, J. K., Rossmeisl, J., Logadottir, A., Lindqvist, L., Kitchin, J. R., Bligaard, T., & Jónsson, H. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp047349j · Cited by 13,153
Combining theory and experiment in electrocatalysis: Insights into materials design
Seh, Z. W., Kibsgaard, J., Dickens, C. F., Chorkendorff, I., Nørskov, J. K., & Jaramillo, T. F. (2017) · Science · doi:10.1126/science.aad4998 · Cited by 12,114
George, E. P., Raabe, D., & Ritchie, R. O. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0121-4 · Cited by 5,047
Hydrogen evolution by a metal-free electrocatalyst
Zheng, Y., Jiao, Y., Zhu, Y., Li, L. H., Han, Y., Chen, Y., Du, A., Jaroniec, M., & Qiao, S. Z. (2014) · Nature Communications · doi:10.1038/ncomms4783 · Cited by 2,236
Carbothermal shock synthesis of high-entropy-alloy nanoparticles
Yao, Y., Huang, Z., Xie, P., Lacey, S. D., Jacob, R. J., Xie, H., Chen, F., Nie, A., Pu, T., Rehwoldt, M., et al. (2018) · Science · doi:10.1126/science.aan5412 · Cited by 2,101
Zhang, J., Zhao, Y., Guo, X., Chen, C., Dong, C.-L., Liu, R.-S., Han, C.-P., Li, Y., Gogotsi, Y., & Wang, G. (2018) · Nature Catalysis · doi:10.1038/s41929-018-0195-1 · Cited by 1,835
An efficient and pH-universal ruthenium-based catalyst for the hydrogen evolution reaction
Mahmood, J., Li, F., Jung, S.-M., Okyay, M. S., Ahmad, I., Kim, S.-J., Park, N., Jeong, H. Y., & Baek, J.-B. (2017) · Nature Nanotechnology · doi:10.1038/nnano.2016.304 · Cited by 1,685
Tuning element distribution, structure and properties by composition in high-entropy alloys
Ding, Q., Zhang, Y., Chen, X., Fu, X., Chen, D., Chen, S., Gu, L., Wei, F., Bei, H., Gao, Y., et al. (2019) · Nature · doi:10.1038/s41586-019-1617-1 · Cited by 1,614
Cited by
Hydrogen production by water electrolysis technologies: A review
El-Shafie, M. (2023) · Results in Engineering · doi:10.1016/j.rineng.2023.101426 · Cited by 720
Fan, L., Ji, Y., Wang, G., Chen, J., Chen, K., Liu, X., & Wen, Z. (2022) · Journal of the American Chemical Society · doi:10.1021/jacs.1c13740 · Cited by 554
High-entropy alloys in electrocatalysis: from fundamentals to applications
Ren, J.-T., Chen, L., Wang, H.-Y., & Yuan, Z.-Y. (2023) · Chemical Society Reviews · doi:10.1039/d3cs00557g · Cited by 551
A high-entropy atomic environment converts inactive to active sites for electrocatalysis
Zhu, H., Sun, S., Hao, J., Zhuang, Z., Zhang, S., Wang, T., Kang, Q., Lu, S., Wang, X., Lai, F., et al. (2023) · Energy & Environmental Science · doi:10.1039/d2ee03185j · Cited by 509
PEM water electrolysis for hydrogen production: fundamentals, advances, and prospects
Wang, T., Cao, X., & Jiao, L. (2022) · Carbon Neutrality · doi:10.1007/s43979-022-00022-8 · Cited by 389
Metadata
- Authors
- Feng, G., Ning, F., Song, J., Shang, H., Zhang, K., Ding, Z., Gao, P., Chu, W., & Xia, D.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-09-23
- Volume
- 143
- Issue
- 41
- Pages
- 17117-17127
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3198989237
- Cited by
- 560
- References
- 53
- FWCI
- 14.96
- Type
- journal article
- Language
- en
- Open access
- closed
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- Feng, G., Ning, F., Song, J., Shang, H., Zhang, K., Ding, Z., Gao, P., Chu, W., & Xia, D. (2021). Sub-2 nm Ultrasmall High-Entropy Alloy Nanoparticles for Extremely Superior Electrocatalytic Hydrogen Evolution. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.1c07643
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