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Cited by 568

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Necklace-like Multishelled Hollow Spinel Oxides with Oxygen Vacancies for Efficient Water Electrolysis

Peng, Shengjie, Gong, Feng, Li, Linlin, Yu, Deshuang, Ji, Dongxiao, Zhang, Tianran, Hu, Zhe, Zhang, Zhiqiang, Chou, Shulei, Du, Yonghua, Ramakrishna, Seeram·2018·Journal of the American Chemical Society

Abstract

The durability and reactivity of catalysts can be effectively and precisely controlled through the careful design and engineering of their surface structures and morphologies. Herein, we develop a novel “adsorption–calcination–reduction” strategy to synthesize spinel transitional metal oxides with a unique necklace-like multishelled hollow structure exploiting sacrificial templates of carbonaceous microspheres, including NiCo 2 O 4 (NCO), CoMn 2 O 4, and NiMn 2 O 4 . Importantly, benefiting from the unique structures and reduction treatment to offer rich oxygen vacancies, the unique reduced NCO (R-NCO) as a bifunctional electrocatalyst exhibits the dual characteristics of good stability as well as high electrocatalytic activity for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). At 1.61 V cell voltage, a 10 mA cm –2 water splitting current density is obtained from the dual-electrode, alkaline water electrolyzer. Calculations based on density functional theory (DFT) reveal a mechanism for the promotion of the catalytic reactions based on a decrease in the energy barrier for the formation of intermediates resulting from the introduction of oxygen vacancies through the reduction process. This method could prove to be an effective general strategy for the preparation of complex, hollow structures and functionalities.

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Metadata

Authors
Peng, S., Gong, F., Li, L., Yu, D., Ji, D., Zhang, T., Hu, Z., Zhang, Z., Chou, S., Du, Y., & Ramakrishna, S.
Venue
Journal of the American Chemical Society
Published
2018-09-14
Volume
140
Issue
42
Pages
13644-13653
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2891850830
Cited by
568
References
8
FWCI
13.97
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Necklace-like Multishelled Hollow Spinel Oxides with Oxygen Vacancies for Efficient Water Electrolysis. https://app.cochat.ai/papers/10.1021/jacs.8b05134
The paper
Peng, S., Gong, F., Li, L., Yu, D., Ji, D., Zhang, T., Hu, Z., Zhang, Z., Chou, S., Du, Y., & Ramakrishna, S. (2018). Necklace-like Multishelled Hollow Spinel Oxides with Oxygen Vacancies for Efficient Water Electrolysis. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b05134

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