[History]
- 11월/12월 2019부로, 이 인용 빈도가 높은 논문의 인용 횟수가 분야와 출판 연도에 대해 인용 빈도가 높은 임계값을 기반으로 Chemistry 관련 학술 분야에서 상위 1%에 올랐습니다.
[Abstract]
Advanced Zn-air batteries (ZABs) with ultrahigh cycle life, which also harness energy with bifunctional electrochemical reactions, are significantly challenging for the commercialization of hybrid/electric vehicles and wearable electronics. Herein, we demonstrated robust aqueous and flexible ZABs with novel three-dimensional dual-linked hexaiminobenzene metal-organic framework (Mn/Fe-HIB-MOF)-based bifunctional oxygen electrocatalysts and superionic functionalized bio-cellulose electrolytes (64 mS cm(-1)). The well-defined quintet-shelled hollow sphere MOFs possess a hierarchical porous structure, excellent packing density with a surface area of 2298 m(2) g(-1), and chemical stability as compared to conventional MOFs. Mn/Fe-HIB-MOF exhibited superior bifunctional oxygen electrocatalytic activity (0.627 V) with half-wave potential (0.883 V) for oxygen reduction and overpotential (280 mV@10 mA cm(-2)) for oxygen evolution reactions, outperforming commercial Pt/C and RuO2. Their favorable oxygen reactions and surface electronic structures were confirmed by density functional theory. Significantly, the Mn/Fe-HIB-MOF cathode demonstrated the highest lifetimes reported to date for rechargeable ZABs, namely 1000 h (0.75 V voltage gap@10 mA cm(-2)) over 6000 cycles and 600 h (efficiency approximate to 65.24%@25 mA cm(-2)) over 3600 cycles with excellent flexibility for liquid and all-solid-state flexible ZABs, respectively. These promising results illustrate the great potential of these novel hexaiminobenzene MOFs and superionic bio-cellulose membranes for the commercial implementation of rechargeable ZABs.
Web of Science Categories
Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences
> 연구정보 > 연구성과 > HIGHLY CITED PAPERS (HCP) 
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jungho@hanyang.ac.kr
https://doi.org/10.1039/C8EE02679C
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