화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU))
권호 23권 2호
발표분야 포스터_환경·에너지
제목 Rationally Designed Phosphorous-containing Amorphous Ruthenium-Cobalt Hydroxide Nanofibers as an Advanced Cathode Material for High-Energy Hybrid Solid-State Supercapacitor
초록 In present work, P doped RC-OH (P@RC-OH) nanofibers has been directly prepared over three dimensional (3D) highly conducting nickel (Ni) foam substrate by the single-step room temperature potentiodynamic polarization method for high energy and stable solid-state hybrid SCs. As a result, the prepared P@RC-OH electrode shows the excellent specific capacity of 262.3 mA h/g at scan rate of 100 mV/s which is quite higher than the other samples. Moreover, the P@RC-OH electrode shows the excellent cycling stability over 20000 cycles by maintain the 90 % of initial capacity. The assembled quasi-solid-state hybrid SCs with P@RC-OH as a positive and activated carbon (AC) as a negative electrode delivers ultrahigh specific capacity of 440 mA h/g at current density of 4 mA/cm2. Additionally, the assembled hybrid SCs exhibits the energy density of 90.02 Wh/kg at a power density of 1363 W/kg and remarkable cycling stability over 10000 charge-discharge cycles.
저자 박범준1, Nilesh R. Chodankar2, 허윤석1, 한영규2
소속 1인하대, 2동국대
키워드 Binary metal hydroxides; P-doping; hybrid supercapacitor; energy density; electrodeposition
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