커뮤니티

연구성과

NEDL [NEDL] Prof. Changshin Jo: Flashlight treatment for instantaneous structuring of dense MXene film in…

페이지 정보

profile_image

작성자 최고관리자

댓글 0건 조회 374회 작성일 2024-04-24 09:23

본문

725248a012bff7c2b760f3a5100f7fe9_1713918206_2574.jpg
 


Abstract: MXenes, the two-dimensional metal carbides and nitrides, have been considered a new class of electrode materials with their noticeable performance in various energy storage systems. Furthermore, the unique property and morphology allow MXenes to be assembled into freestanding films, which can be applied in energy storage devices with lightweight and high energy density. However, their tendency to restack and aggregate remains a challenge to enhance the electrochemical performance of MXenes. In this study, we propose a facile method to fabricate a porous MXene-TiO2 freestanding anode with the help of a flashlight. Simply heating the MXene films with a flashlight in milliseconds increases the interlayer spacing of the MXenes and simultaneously forms TiO2 on the MXene surface. Along with the widened interlayer and formation of TiO2, improved wettability, easy electrolyte penetration, and reduced electrode resistance were achieved. As a result, this freestanding anode exhibits nearly 50 times higher Li+ storage capacity (148 mAh/g) than pristine MXene film (3 mAh/g) at 0.05 A/g and excellent cycle stability up to 1500 cycles without degradation.

댓글목록

등록된 댓글이 없습니다.