The mounting challenges of global energy shortage and climate change call for the development of low-cost and high performance energy storage systems.Here,we propose the facile preparation of a 3D sponge electrode mat...The mounting challenges of global energy shortage and climate change call for the development of low-cost and high performance energy storage systems.Here,we propose the facile preparation of a 3D sponge electrode material by the uniform deposition of NiMoO_(4)nanorods on a carbonized melamine sponge(CMS)during a solvothermal reaction.Under the templating of a macroporous CMS backbone,the obtained 3D hierarchical NiMoO_(4)/CMS composite sponge can offer numerous electrochemical sites for faradaic redox reactions and also provide interconnected conducting carbon networks for direct and rapid charge transfer.展开更多
Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorag...Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorage odd elasticity,engendering phenomena unattainable in traditional passive or active systems.Here,we study the effects of odd viscosity and elasticity on phase behaviors of active spinner systems.We find the spinner fluid under a simple shear experiences an anisotropic gas-liquid phase separation driven by the odd-viscosity stress.This phase separation exhibits equilibrium-like behavior,with both binodal-like and spinodal curves and critical point.However,the formed dense liquid phase is unstable,since the odd elasticity instantly takes over the odd viscosity to condense the liquid into a solid-like phase.The unusual phase behavior essentially arises from the competition between thermal fluctuations and the odd response-induced effective attraction.Our results demonstrate that the cooperation of odd viscosity and elasticity can lead to exotic phase behavior,revealing their fundamental roles in phase transition.展开更多
基金financially supported by the National Natural Science Foundation of China for Youths(No.21704035)the China Postdoctoral Science Foundation(No.2017M610304)+3 种基金the Natural Science Foundation of Jiangsu Province for Youths(BK20170544)the University Natural Science Research of Jiangsu(No.17KJB430010)the Jiangsu Province Postdoctoral Science Foundation(1701065C)a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
文摘The mounting challenges of global energy shortage and climate change call for the development of low-cost and high performance energy storage systems.Here,we propose the facile preparation of a 3D sponge electrode material by the uniform deposition of NiMoO_(4)nanorods on a carbonized melamine sponge(CMS)during a solvothermal reaction.Under the templating of a macroporous CMS backbone,the obtained 3D hierarchical NiMoO_(4)/CMS composite sponge can offer numerous electrochemical sites for faradaic redox reactions and also provide interconnected conducting carbon networks for direct and rapid charge transfer.
基金the support of the National Natural Science Foundation of China(Nos.T2325027,12274448,12325405,and 12174390)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB33000000).
文摘Due to the breaking of time-reversal and parity symmetries and the presence of non-conservative microscopic interactions,active spinner fluids and solids respectively exhibit nondissipative odd viscosity and nonstorage odd elasticity,engendering phenomena unattainable in traditional passive or active systems.Here,we study the effects of odd viscosity and elasticity on phase behaviors of active spinner systems.We find the spinner fluid under a simple shear experiences an anisotropic gas-liquid phase separation driven by the odd-viscosity stress.This phase separation exhibits equilibrium-like behavior,with both binodal-like and spinodal curves and critical point.However,the formed dense liquid phase is unstable,since the odd elasticity instantly takes over the odd viscosity to condense the liquid into a solid-like phase.The unusual phase behavior essentially arises from the competition between thermal fluctuations and the odd response-induced effective attraction.Our results demonstrate that the cooperation of odd viscosity and elasticity can lead to exotic phase behavior,revealing their fundamental roles in phase transition.
