Ostwald Ripening Improves Rate Capability of High Mass Loading Manganese Oxide for Supercapacitors

Yu Song, Tianyu Liu, Bin Yao, Mingyang Li, Tianyi Kou, Zi-Hang Huang, Dong-Yang Feng, Fuxin Wang, Yexiang Tong, Xiao-Xia Liu, Yat Li
  • ACS Energy Letters, July 2017, American Chemical Society (ACS)
  • DOI: 10.1021/acsenergylett.7b00405

What is it about?

This paper demonstrates a facile hydrothermal treatment method that can turn electro deposited manganese dioxide nano sheets into crystalline core-shell nanocrystals. The treated electrode exhibited improved capacitance and rate handling ability.

Why is it important?

Manganese dioxide is a commonly used materials for pseudo-capacitors but its limited electrical conductivity is a major hurdle that impedes its excellent performance in capacity and rate handling performance. Reducing its electrical resistance will enable the feasibility of manganese dioxide for electrochemical energy storage.


Dr Tianyu Liu
Virginia Polytechnic Institute and State University

The method reported in this paper is facile and efficient. It is expected to exert profound influence in the research field of lectrochemical energy storage.

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The following have contributed to this page: Dr Tianyu Liu