화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1803
발표분야 재료 (Materials)
제목 Synthesis of Nickel-Manganese Layered Double Hydroxide/Carbon Nanotube/Carbon Nano-onion Nanocomposite for High Performance Supercapacitor Application
초록 Layered double hydroxide (LDH) materials have an attractive electrochemical properties, such as higher theoretical specific capacitance, tunability of cations in the host layer, and an easy exchangeable properties of anions without altering the host structure. But their electrochemical performance is limited due to poor conductivity and cyclic stability. To overcome this problem, we developed a composite with combination of a 2D nickel manganese layered double hydroxide (NiMn-LDH), a 1D carbon nanotube (CNT) and 0D carbon nano onion CNO) which delivers higher supercapacitive performance. The resulting composite material (NiMn-LDH/CNT/CNO) is a 3D flower like morphology with larger surface area. Electrochemical analysis shows that Ni3Mn1-LDH/CNT/CNO synthesized by hydrothermal method at 100 ℃ as a positive electrode delivers a maximum specific capacitance of 2200 F g-1 (at 1 A g-1), excellent rate capability and higher cyclic stability.
저자 Kidie Abebaw Eshetie1, Mohammad Olvianas1, Ganesh Dhakal1, Debananda Mohapatra1, 심재진2
소속 1Yeungnam Univ., 2영남대
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