화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터)
권호 25권 2호, p.1912
발표분야 재료 (Materials)
제목 In-situ bimetallic doping in carbon nanofibers via controlled electrospinning technique: Electrochemical supercapacitor
초록 In-situ bimetallic doping in carbon nanofibers via controlled electrospinning technique: Electrochemical supercapacitor
Youhyun Son, M. Shaheer Akhatar, O-Bong Yang
Carbon materials have received immense attentions due to their great physicochemical characteristics and most widely studied as an electrocatalyst in various energy storage, especially supercapacitor. In this work, we report the Nickel-Copper (NiCu) bimetallic doping into carbon nanofibers (CNFs) by electrospinning technique followed by the carbonization at 780oC. The prepared NiCu-CNFs were analyzed by morphological and structural characterizations to confirm the formation of NiCu-CNFs. The surface analysis revealed that the prepared NiCu-CNFs possess high specific surface area and good pore size with high pore volume. The electrochemical behavior of NiCu-CNFs was determined by making NiCu-CNFs electrode on Ni foam and tested in a neutral aqueous 1M Na2SO4 electrolyte via cyclicvoltametry (CV). A high specific capacitance of ~347 Fg-1 with excellent stability after 1000 cycles was achieved by fabricated electrochemical supercapacitor with NiCu-CNFs electrode.  
저자 손유현, Shaheer M. Akhtar, 양오봉
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