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Cited by 259

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Anomalous Pseudocapacitive Behavior of a Nanostructured, Mixed-Valent Manganese Oxide Film for Electrical Energy Storage

Song, Min-Kyu, Cheng, Shuang, Chen, Haiyan, Qin, Wentao, Nam, Kyung-Wan, Xu, Shucheng, Yang, Xiao-Qing, Bongiorno, Angelo, Lee, Jangsoo, Bai, Jianming, Tyson, Trevor A., Cho, Jaephil, Liu, Meilin·2012·Nano Letters

Abstract

While pseudocapacitors represent a promising option for electrical energy storage, the performance of the existing ones must be dramatically enhanced to meet today's ever-increasing demands for many emerging applications. Here we report a nanostructured, mixed-valent manganese oxide film that exhibits anomalously high specific capacitance (∼2530 F/g of manganese oxide, measured at 0.61 A/g in a two-electrode configuration with loading of active materials ∼0.16 mg/cm(2)) while maintaining excellent power density and cycling life. The dramatic performance enhancement is attributed to its unique mixed-valence state with porous nanoarchitecture, which may facilitate rapid mass transport and enhance surface double-layer capacitance, while promoting facile redox reactions associated with charge storage by both Mn and O sites, as suggested by in situ X-ray absorption spectroscopy (XAS) and density functional theory calculations. The new charge storage mechanisms (in addition to redox reactions of cations) may offer critical insights to rational design of a new-generation energy storage devices.

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Crossref · 10.1021/nl300984y

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Metadata

Authors
Song, M.-K., Cheng, S., Chen, H., Qin, W., Nam, K.-W., Xu, S., Yang, X.-Q., Bongiorno, A., Lee, J., Bai, J., Tyson, T. A., Cho, J., & Liu, M.
Venue
Nano Letters
Published
2012-06-13
Volume
12
Issue
7
Pages
3483-3490
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2016685857
Cited by
259
References
2
FWCI
11.29
Type
journal article
Language
en
Open access
closed

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