Mixed-metal hydroxide Coated on Ni Foam For High Performance Supercapcitor

• Main Authors: Kuang-ChengLin, 林廣承
• Other Authors: Jyh-Ming Ting
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/ub55v7

碩士 === 國立成功大學 === 材料科學及工程學系 === 107 === In this work, we have studied a novel supercapacitor electrode made out of a mixed transition metal hydroxide grown on Ni foam to combat this problem. The mixed transition metal hydroxide, Ni-Mn-Co(OH)2, was synthesized using a one-pot synthesis involving hydrothermal treatment. We show that simply varying the precursor concentration would lead to the formation of Ni-Mn-Co(OH)2 nanostructures having different morphologies. The resulting Ni-Mn-Co(OH)2 provides more oxidation states that can participate in the electron transfer than monoxide. Several material characterizations and electrochemical tests were performed. Moreover, we demonstrate that the novel electrode gives very excellent specific capacitance of 2,286 F/g and stability after 2,000 cycles in three electrode system.