| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-에너지저장·변환 |
| 제목 |
Template free a battery-type CuCo2O4/CuO stable electrodes: Cation concentration-dependent electrochemical performance for all-solid-state symmetric supercapacitors |
| 초록 |
Microstructured CuCo2O4/CuO composite grown on Ni foam (CCO/NF) was prepared by using the solvothermal method. Changing the solvents i.e.; Isopropyl alcohol and DI water in the reaction attained two different morphologies such as microspheres (CCO/NF-IPA) and cross-linked microsheets (CCO/NF-DIW), respectively. The metal (Cu/Co)/O deficiencies have been quantitatively estimated via X-ray photoelectron spectroscopy (XPS) and confirmed by the Energy-dispersive X-ray spectroscopy (EDS). The electrochemical performance of two samples was investigated based on the cation concentration (Cu-deficiency/Co-excess). In both half-cell and full cell, the Co-excess of the CCO/NF-IPA electrode exhibits higher specific capacity and long cyclic performance compared to CCO/NF-DIW. Under these impressive electrochemical performances, the CCO/NF-IPA can serve as a promising battery-type electrode material toward high-performance symmetric supercapacitors. |
| 저자 |
Gutturu Rajasekhara Reddy, Sang Woo Joo
|
| 소속 |
Yeungnam Univ. |
| 키워드 |
CuCo2O4/CuO composite; battery-type electrode; supercapacitors
|
| E-Mail |
|
