Selective micro-etching of duplex stainless steel for preparing manganese oxide supercapacitor electrode

Szu Jung Pan, Yi Ju Shih, Jhen Rong Chen, Jeng Kuei Chang, Wen Ta Tsai

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

In this investigation, manganese oxide electrodes that incorporate selectively micro-etched duplex stainless steel (DSS) for supercapacitor applications were fabricated. The experimental results demonstrate that selective dissolution of the γ phase could result in the formation of α phase network, and vice versa. Controlling the extent of selective dissolution produces a surface with a concave-convex morphology, increasing the surface area. Manganese oxide could then be anodically deposited onto the etched dual phase steel current collector. The experimental results of cyclic voltammetry (CV) show that the specific capacitance increased with the etching depth of either the γ or the α phase. Additionally, selective dissolution occurred in α phase had a better effect on increasing the specific capacitance. The successful application of selective dissolution in fabricating a current collector was thus demonstrated.

原文English
頁(從 - 到)261-267
頁數7
期刊Journal of Power Sources
187
發行號1
DOIs
出版狀態Published - 2009 2月 1

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 能源工程與電力技術
  • 物理與理論化學
  • 電氣與電子工程

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