Direct separation of Xe and Kr from air or used nuclear fuel(UNF)off-gas by means of porous adsorbents is of industrial importance but is a very challenging task.In this work,we show a robust metal-organic framework(M...Direct separation of Xe and Kr from air or used nuclear fuel(UNF)off-gas by means of porous adsorbents is of industrial importance but is a very challenging task.In this work,we show a robust metal-organic framework(MOF),namely ECUT-60,which renders not only high chemical stability,but also unique structure with multiple traps.This leads to the ultrahigh Xe adsorption capacity,exceeding most reported porous materials.Impressively,this MOF also enables high selectivity of Xe over Kr,CO2,O2,and N2,leading to the high-performance separation for trace quantitites of Xe/Kr from a simulated UNF reprocessing off-gas.The separation capability has been demonstrated by using dynamic breakthrough experiments,giving the record Xe uptake up to 70.4 mmol/kg and the production of 19.7 mmol/kg pure Xe.Consequently,ECUT-60 has promising potential in direct production of Xe from UNF off-gas or air.The separation mechanism,as unveiled by theoretical calculation,is attributed to the multiple traps in ECUT-60 that affords rigid restrict for Xe atom via van der Waals force.展开更多
A recent study demonstrated advancements in quantum computing by applying it to address a non-Hermitian optical manipulation problem.The emergence of exceptional points and the dynamics of optically trapped single or ...A recent study demonstrated advancements in quantum computing by applying it to address a non-Hermitian optical manipulation problem.The emergence of exceptional points and the dynamics of optically trapped single or multiple particles were simulated using a quantum computing approach.展开更多
基金supported by the National Natural Science Foundations of China(21966002 and 21871047)the Natural Science Foundation of Jiangxi Province(20181ACB20003)+1 种基金the Training Program for Academic and Technical Leaders of Major Disciplines in Jiangxi Province(20194BCJ22010)the Graduate Innovation Project of East China University of Technology(DHYC-202023)。
文摘Direct separation of Xe and Kr from air or used nuclear fuel(UNF)off-gas by means of porous adsorbents is of industrial importance but is a very challenging task.In this work,we show a robust metal-organic framework(MOF),namely ECUT-60,which renders not only high chemical stability,but also unique structure with multiple traps.This leads to the ultrahigh Xe adsorption capacity,exceeding most reported porous materials.Impressively,this MOF also enables high selectivity of Xe over Kr,CO2,O2,and N2,leading to the high-performance separation for trace quantitites of Xe/Kr from a simulated UNF reprocessing off-gas.The separation capability has been demonstrated by using dynamic breakthrough experiments,giving the record Xe uptake up to 70.4 mmol/kg and the production of 19.7 mmol/kg pure Xe.Consequently,ECUT-60 has promising potential in direct production of Xe from UNF off-gas or air.The separation mechanism,as unveiled by theoretical calculation,is attributed to the multiple traps in ECUT-60 that affords rigid restrict for Xe atom via van der Waals force.
基金supported by Shenzhen Science and Technology Program(JCYJ20240813141301003)Natural Science Foundation of China(62274111)Independent Scientific Research Program from State Key Laboratory of Radio Frequency Heterogeneous Integration(2024015).
文摘This review examines modeling methodologies for amorphous metal oxide thin-film transistors(a-MO TFTs).It covers underlying device physics,charge transport mechanisms including multiple trapping and release,surface potential,mobility,drain current,and capacitance models,alongside bias,temperature,and mechanical stress effects.Comparisons of compact models highlight trade-offs in accuracy,parameter extraction,and circuit-level validation.Future directions emphasize machine learning integration,unified multi-material frameworks,and strain-aware simulations.
文摘A recent study demonstrated advancements in quantum computing by applying it to address a non-Hermitian optical manipulation problem.The emergence of exceptional points and the dynamics of optically trapped single or multiple particles were simulated using a quantum computing approach.
