화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2015년 가을 (10/21 ~ 10/23, 일산 KINTEX)
권호 21권 2호, p.2120
발표분야 재료
제목 Highly Efficient Manganese Tetroxide nanoparticles based Electrode for electrochemical supercapacitors
초록 This work reports on the synthesis of Mn3O4 nanoparticles (NPs) by a low temperature solution process at 80oC using potassium permanganate, urea and cetyltrimethylammonium bromide (CTAB). The crystalline, structural and structural properties of synthesized Mn3O4 NPs deduced the characteristic tetragonal spinel structure of Mn3O4, where the divalent manganese ions were attached in the tetrahedral coordination. From UV-Vis NIR observations, the optical band gap (Eg) of Mn3O4 NPs is 2.37 eV. For electrochemical supercapacitor applications, the synthesized Mn3O4 NPs were mixed with activated carbon to prepare electro-active electrode. Cyclovoltametry (CV) measurements revealed that Mn3O4 NPs based electro-active electrode exhibited the good electrochemical and capacitive properties.
저자 양오봉1, M. Shaheer Akhtar2, Zhen Yu Li1, BUI THI MY PHUONG3
소속 1School of Semiconductor and Chemical Engineering & Solar Energy Research Center, 2Chonbuk National Univ., 3Chonbuk National Univ. / New & Renewable Energy Material Development Center (NewREC)
키워드 Chemical synthesis; Manganese Oxide; Electrochemical properties; Supercapacitor
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