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Cited by 188

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Cr‐Dopant Induced Breaking of Scaling Relations in CoFe Layered Double Hydroxides for Improvement of Oxygen Evolution Reaction

Wen, Lulu, Zhang, Xilin, Liu, Jieyu, Li, Xinyang, Xing, Changchang, Lyu, Xianjun, Cai, Weiping, Wang, Weichao, Li, Yue·2019·Small

Abstract

Monodentate adsorption of oxygen intermediates results in a theoretical overpotential limit of ≈0.35 V for oxygen evolution reaction (OER), which causes the sluggish kinetics of the OER process. In this work, nonprecious chromium dopant is introduced into the self‐supported CoFe layered double hydroxides (LDHs) on nickel foam (Cr‐CoFe LDHs/NF) via a facile one‐step hydrothermal method, which exhibits a preeminent electrocatalytic activity toward the OER with an ultralow overpotential of 238 mV to obtain 10 mA cm−2 and a high stability after cyclic voltammetry for 5000 cycles in alkaline solution (1 m KOH). Density functional theory (DFT) calculations unveil that Cr dopants as new active sites could improve the electron‐donation ability of the resultant Cr‐CoFe LDHs due to the smaller electronegativity of Cr in comparison with Fe and Co. Therefore, the scaling relation of adsorption energy among four oxygen intermediates is broken and consequently the OER performance is further promoted. This work provides a strategy to develop efficient metal layered double hydroxide OER catalysts.

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Metadata

Authors
Wen, L., Zhang, X., Liu, J., Li, X., Xing, C., Lyu, X., Cai, W., Wang, W., & Li, Y.
Venue
Small
Publisher
Wiley
Published
2019-07-15
Volume
15
Issue
35
Pages
e1902373-e1902373
ISSN
  • 1613-6810 (ISSN-L)
  • 1613-6829
OpenAlex
W2961014471
Cited by
188
References
5
FWCI
4.28
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Cr‐Dopant Induced Breaking of Scaling Relations in CoFe Layered Double Hydroxides for Improvement of Oxygen Evolution Reaction. https://app.cochat.ai/papers/10.1002/smll.201902373
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Wen, L., Zhang, X., Liu, J., Li, X., Xing, C., Lyu, X., Cai, W., Wang, W., & Li, Y. (2019). Cr‐Dopant Induced Breaking of Scaling Relations in CoFe Layered Double Hydroxides for Improvement of Oxygen Evolution Reaction. Small. https://doi.org/10.1002/smll.201902373

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