Aqueous Zn-based energy storage(AZES)devices are promising candidates for large-scale energy storage systems.Nevertheless,AZES devices still face some critical bottlenecks and challenges,including poor chemical stabil...Aqueous Zn-based energy storage(AZES)devices are promising candidates for large-scale energy storage systems.Nevertheless,AZES devices still face some critical bottlenecks and challenges,including poor chemical stability of Zn anode and a narrow operating voltage window of aqueous electrolyte.Zwitterions are typically organic salts in which cations and anions are covalently bonded.Zwitterionic materials have garnered considerable research attention in the field of electrochemical energy storage due to their solubility in polar solvents,strong hydration ability,and dipole formation for the transfer of carriers.Zwitterionic materials have been shown to achieve excellent effects on addressing the issues in AZES devices,yet the explorations with limited understanding of the functional mechanism and design basis of the zwitterionic materials.Accordingly,this review discusses the unique structure and characteristics of zwitterionic materials and summaries the applications and mechanisms of zwitterionic materials in AZES devices.Finally,the challenges and perspectives of zwitterionic materials working in the AZES devices optimization are offered for future research.展开更多
Zwitterion-based materials by virtue of their special physical and chemical characteristics have attracted researchers to utilize them for fabricating functional coatings. The simultaneous presence of positive and neg...Zwitterion-based materials by virtue of their special physical and chemical characteristics have attracted researchers to utilize them for fabricating functional coatings. The simultaneous presence of positive and negative charges renders the zwitterion-based materials with electrostatically induced hydration properties, which enables a high resistance towards oily pollutants, nonspecific protein adsorption, bacterial adhesion and biofilm formation. This review starts from the working mechanism of zwitterions and covers the fabrication strategies of zwitterion-based functional coatings, namely the zwitterion-bearing binder route, the zwitterion-bearing additive route and the post-generation of coatings containing zwitterionic precursors. The applications of zwitterion-based functional coatings are discussed, including medical implants, marine antifouling and oil-resistant coatings, with focus on the relevant mechanisms of the zwitterion-containing coatings for a specific performance. Finally, some comments and perspectives on the current situation and future development of zwitterion-based functional coatings are given.展开更多
基金supported by the National Natural Science Foundation of China(No.52377222)Natural Science Foundation of Hunan Province(No.2023JJ20064).
文摘Aqueous Zn-based energy storage(AZES)devices are promising candidates for large-scale energy storage systems.Nevertheless,AZES devices still face some critical bottlenecks and challenges,including poor chemical stability of Zn anode and a narrow operating voltage window of aqueous electrolyte.Zwitterions are typically organic salts in which cations and anions are covalently bonded.Zwitterionic materials have garnered considerable research attention in the field of electrochemical energy storage due to their solubility in polar solvents,strong hydration ability,and dipole formation for the transfer of carriers.Zwitterionic materials have been shown to achieve excellent effects on addressing the issues in AZES devices,yet the explorations with limited understanding of the functional mechanism and design basis of the zwitterionic materials.Accordingly,this review discusses the unique structure and characteristics of zwitterionic materials and summaries the applications and mechanisms of zwitterionic materials in AZES devices.Finally,the challenges and perspectives of zwitterionic materials working in the AZES devices optimization are offered for future research.
基金Sponsored by the National Key Research and Development Program of China(Grant No.2020YFE0100300)the National Natural Science Foundation of China(Grant No.51973036)。
文摘Zwitterion-based materials by virtue of their special physical and chemical characteristics have attracted researchers to utilize them for fabricating functional coatings. The simultaneous presence of positive and negative charges renders the zwitterion-based materials with electrostatically induced hydration properties, which enables a high resistance towards oily pollutants, nonspecific protein adsorption, bacterial adhesion and biofilm formation. This review starts from the working mechanism of zwitterions and covers the fabrication strategies of zwitterion-based functional coatings, namely the zwitterion-bearing binder route, the zwitterion-bearing additive route and the post-generation of coatings containing zwitterionic precursors. The applications of zwitterion-based functional coatings are discussed, including medical implants, marine antifouling and oil-resistant coatings, with focus on the relevant mechanisms of the zwitterion-containing coatings for a specific performance. Finally, some comments and perspectives on the current situation and future development of zwitterion-based functional coatings are given.
