화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU))
권호 23권 2호
발표분야 포스터_전기화학
제목 Ultrafast supercapacitors based on heterostructured 2D nanocomposite film of graphene/MoS2 nanosheets
초록 An industrially adoptable fluid dynamic exfoliation process is reported to produce large quantities of ionic liquid (IL)-functionalized metallic phase MoS2 (m-MoS2) and defectfree graphene (Gr) sheets. Hybrid 2D–2D layered films are also fabricated by incorporating Gr sheets into compact m-MoS2 films, resulting in an outstanding volumetric capacitance of 1430.5 F cm−3 at 1 A g−1 and an extremely high rate capability of 80% retention at 1000 A g−1. The flexible supercapacitor assembled using a polymer-gel electrolyte exhibits excellent resilience to harsh electrochemical and mechanical conditions while maintaining an impressive rate performance and long cycle life. Successful achievement of an ultrahigh volumetric energy density (1.14 W h cm−3) using an organic electrolyte with a wide cell voltage of ≈3.5 V is demonstrated.
저자 최봉길, 박홍준
소속 강원대
키워드 2D nanosheets; fluid dynamic exfoliation; supercapacitors
E-Mail bgchoi@kangwon.ac.kr