| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 포스터-무기재료 |
| 제목 | Mesoporous Tungsten Oxide for an Anode Material of Aqueous Zn-ion Capacitors |
| 초록 | As the attention to green energy resources grows, the importance of a grid-scale energy storage system (ESS) has also increased. Since the ESS is stationary, its properties such as safety, durability and cost are more important than weight. With this regard, aqueous Zn-ion capacitors (ZICs) can be considered as a proper option owing to the high safety, abundance of Zn, stability of Zn-ions in water and high rate-capability. For ZICs, Zn metal is mostly used as the anode, however, it is suffering from corrosion of the surface and formation of dendrites. In this study, we have prepared mesoporous tungsten oxide (m-WO3) to replace Zn metal anode and investigated its electrochemical behavior in aqueous Zn-ion system. Owing to its mesoporous structure, it takes advantages of i) larger reaction sites, ii) fast electrolyte penetration, and iii) short solid-diffusion length. Compared to bulk WO3, higher capacitance, better rate capability, and the difference of reaction mechanism were shown. |
| 저자 | 강우석1, 조창신2 |
| 소속 | 1중앙대, 2포항공과대 |
| 키워드 | Zn-ion capacitor; nanomaterial |
