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Reconfigurable memlogic long wave infrared sensing with superconductors

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Light(Science & Applications) 2024年第5期13卷 908-920页

作者： Bingxin Chen Huanyi Xue Hong Pan Liping zhu Xiaomi yan Jingzhe Wang yanru Song Zhenghua An State Key Laboratory of Surface Physics and Institute for Nanoelectronic Devices and Quantum Computing Department of PhysicsFudan UniversityShanghai 200438China. ShanghaiTech Quantum Device Lab ShanghaiTech UniversityShanghai 201210China. Shanghai Qi Zhi Institute 41th FloorAI TowerNo.701 Yunjin RoadXuhui DistrictShanghai 200232China. Yiwu Research Institute of Fudan University Chengbei RoadYiwu City 322000 ZhejiangChina. Zhangjiang Fudan International Innovation Center Fudan UniversityShanghai 201210China

Optical sensors with in-cell logic and memory capabilities offer new horizons in realizing machine vision beyond von Neumann architectures and have been attempted with two-dimensional materials,memristive oxides,phasechanging materials *** the unparalleled performance of superconductors with both quantum-limited optical sensitivities and ultra-wide spectrum coverage,here we report a superconducting memlogic long-wave infrared sensor based on the bistability in hysteretic superconductor-normal phase *** cooperatively by electrical and optical pulses,the device offers deterministic in-sensor switching between resistive and superconducting(hence dissipationless)states with persistence>105 *** results in a resilient reconfigurable memlogic system applicable for,e.g.,encrypted ***,a high infrared sensitivity at 12.2μm is achieved through its in-situ metamaterial perfect absorber *** work opens the avenue to realize all-in-one superconducting memlogic sensors,surpassing biological retina capabilities in both sensitivity and wavelength,and presents a groundbreaking opportunity to integrate visional perception capabilities into superconductor-based intelligent quantum machines.

关键词： wave superconductor quantum

Synthesis strategies of hard carbon anodes for sodium-ion batteries

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Materials Reports(Energy) 2024年第2期4卷 1-22页

作者： Jian Yin Ye Shui Zhang Hanfeng liang Wenli Zhang Yunpei zhu Laboratory of Environmental Sciences and Technology Xinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesUrumqi830011China Materials Science and Engineering Physical Science and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal23955-6900Saudi Arabia School of Engineering University of AberdeenAberdeenAB243UEUK State Key Laboratory of Physical Chemistry of Solid Surfaces Tan Kah Kee Innovation Laboratory(IKKEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Jieyang515200China Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of Technology(GDUT)Panyu DistrictGuangzhou510006China School of Advanced Manufacturing Guangdong University of Technology(GDUT)Jieyang522000China

Sodium-ion battery(SIB)is an ideal candidate for large-scale energy storage due to high abundant sodium sources,relatively high energy density,and potentially low *** carbons,as one of the most promising anodes,could deliver high plateau capacities at low potentials,which boosts the energy densities of *** slope capacities have been demonstrated from the defect adsorption of sodium ions,while the plateau capacity depends highly on intercalation and pore ***,the specific structures of sodium ions stored in hard carbons have not been clarified,namely active sites of adsorption,intercalation,and pore-filling ***,delicate synthesis methods are required to prepare hard carbons with controllable specific structures,along with elucidating the precise active sites for enhancing the Na-ion storage *** offer databases for future designs,we summarized the synthesis strategies of hard carbon anodes for constructing active sites of plateau *** methods were highlighted with corresponding influences on the meticulous structures of hard carbons and Na-ion storage *** but not least,perspectives were proposed for developing hard carbon anodes from the points of research and practical applications.

关键词： Hard carbon anodeCarbon synthesisSodium-ion batteryStructure-function relationship

Detwinning and Anneal-Hardening Behaviors of Pre-Twinned AZ31 Alloys under Cryogenic Loading

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1551-1563页

作者： Lingyu Zhao Wei zhu Chao Zhang Yunchang Xin Changjian yan Yao Cheng Zhaoyang Jin School of Mechanical Engineering Yangzhou UniversityYangzhou225127China Key Laboratory for Light-Weight Materials Nanjing Tech UniversityNanjing210009China Institute of Corrosion Science and Technology Guangzhou510070GuangdongChina Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing Institute of TechnologyNanjing211167China

Detwinning behavior of a pre-twinned magnesium alloy AZ31 at cryogenic temperature was investigated,also with a focus on the annealing hardening behavior of samples with different fractions of ***-compression along the transverse direction with strains of 1.7%,3.0%,and 6.0% was applied to generated[1012]*** behavior,microstructure,and texture evolution during subsequent tension were *** results show that low temperature did not change the fact that detwinning still pre-dominated in the pre-twinned samples under reverse ***,a relatively harder migration of twin boundaries was found at cryogenic *** annealing hardening of 27-40 MPa was observed in the pre-twinned samples,and such a hardening effect shows a close relation with the fraction of pre-twins or the level of *** annealing hardening effect disappeared if the matrix was consumed by twins along with the increased pre-compression *** corresponding reasons for the annealing hardening behavior were discussed.

关键词： Mg alloys Detwinning Annealing hardening Cryogenic temperature Mechanical property

Adsorption and activation of peroxymonosulfate on BiOCl for carbamazepine degradation: The role of piezoelectric effect

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Chinese Chemical Letters 2024年第10期35卷 421-424页

作者： Cunjun Li Wencong Liu Xianlei Chen liang Li Shenyu Lan Mingshan zhu Zhoushan Institute of Calibration and Testing for Quality and Technology Supervision Zhoushan 316012China School of Environment Jinan UniversityGuangzhou 511443China Department of Environmental Science and Engineering Xi'an Jiaotong UniversityXi'an 710049China

The adsorption of peroxymonosulfate(PMS)is crucial for PMS activation in the heterogeneous advanced oxidation ***,the investigation of PMS adsorption on the piezocatalysts still remains *** this work,bismuth oxychloride(BiO Cl)nanosheets were prepared as the piezocatalysts for PMS activation under ultrasonic vibration to remove carbamazepine(CBZ)in aqueous *** to92.5%of CBZ was degraded for 40 min in Bi OCl piezo-activated PMS system with the reaction rate constant of 0.0741 min-1,being 1.63 times that of the sum of BiOCl piezocatalysis,BiOCl-activated PMS,and vibration-activated *** adsorption on the surface of BiOCl was specifically studied by comparing the microscopic structure change of the fresh and used Bi *** results suggested that the piezoelectric field of Bi OCl was able to promote the tight adsorption of PMS on the surface,thus facilitating the fast activation of PMS through electrons transfer to produce reactive species(HO·,SO_(4)·-,O_(2)·-,1O_(2)).This work presents an in-depth understanding for the role of piezoelectric effect on the adsorption and activation of PMS.

关键词： Peroxymonosulfate adsorption Peroxymonosulfate activation Electron transfer Biocl piezoelectricity Carbamazepine degradation

Molecular Dynamics Simulation of Shock Response of CL-20 Co-crystals Containing Void Defects

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Defence Technology（防务技术） 2024年第1期31卷 364-374页

作者： Changlin Li Wei yang Qiang Gan Yajun Wang Lin liang Wenbo Zhang Shuangfei zhu Changgen Feng State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China School of Materials Science&Engineering Beijing Institute of TechnologyBeijing 100081China

To investigate the effect of void defects on the shock response of hexanitrohexaazaisowurtzitane(CL-20)co-crystals,shock responses of CL-20 co-crystals with energetic materials ligands trinitrotoluene(TNT),1,3-dinitrobenzene(DNB),solvents ligands dimethyl carbonate(DMC) and gamma-butyrolactone(GBL)with void were simulated,using molecular dynamics method and reactive force *** is found that the CL-20 co-crystals with void defects will form hot spots when impacted,significantly affecting the decomposition of molecules around the *** degree of molecular fragmentation is relatively low under the reflection velocity of 2 km/s,and the main reactions are the formation of dimer and the shedding of nitro *** existence of voids reduces the safety of CL-20 co-crystals,which induced the sensitivity of energetic co-crystals CL-20/TNT and CL-20/DNB to increase more *** has occurred under the reflection velocity of 4 km/s,energetic co-crystals are easier to polymerize than solvent co-crystals,and are not obviously affected by *** results show that the energy of the wave decreases after sweeping over the void,which reduces the chemical reaction frequency downstream of the void and affects the detonation performance,especially the solvent co-crystals.

关键词： CL-20 co-crystals Molecular dynamics simulation Reactive forcefield Impact response Hot spot Void defect

Atmospheric transmission algorithm for pulsed X-rays from high-altitude nuclear detonations based on scattering correction

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Nuclear Science and Techniques 2024年第3期35卷 40-52页

作者： Ding-Han zhu Xiong Zhang Xiao-Qiang Li Peng Li yan-Bin Wang Shuang Zhang State Key Laboratory of NBC Protection for Civilian Beijing 102205China

In high-altitude nuclear detonations,the proportion of pulsed X-ray energy can exceed 70%,making it a specific monitoring signal for such *** pulsed X-rays can be captured using a satellite-borne X-ray detector following atmospheric *** quantitatively analyze the effects of different satellite detection altitudes,burst heights,and transmission angles on the physical processes of X-ray transport and energy fluence,we developed an atmospheric transmission algorithm for pulsed X-rays from high-altitude nuclear detonations based on scattering *** proposed method is an improvement over the traditional analytical method that only computes direct-transmission *** traditional analytical method exhibits a maximum relative error of 67.79% compared with the Monte Carlo *** improved method reduces this error to within 10% under the same conditions,even reaching 1% in certain ***,its computation time is 48,000 times faster than that of the Monte Carlo *** results have important theoretical significance and engineering application value for designing satellite-borne nuclear detonation pulsed X-ray detectors,inverting nuclear detonation source terms,and assessing ionospheric effects.

关键词： High-altitude nuclear detonation Atmospheric transmission Pulsed X-rays Scattering correction Analytical method Monte Carlo method

Effect of phosphorus content on interfacial heat transfer and film deposition behavior during the high-temperature simulation of strip casting

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 1016-1025页

作者： Wanlin Wang Cheng Lu liang Hao Jie Zeng Lejun Zhou Xinyuan Liu Xia Li Chenyang zhu School of Metallurgy and Environment Central South UniversityChangsha 410083China National Center for International Research of Clean Metallurgy Central South UniversityChangsha 410083China Institute of Research of Iron and Steel ShasteelJiangsu ProvinceZhangjiagang 215625China

The interfacial wettability and heat transfer behavior are crucial in the strip casting of high phosphorus-containing steel.A hightemperature simulation of strip casting was conducted using the droplet solidification technique with the aims to reveal the effects of phosphorus content on interfacial wettability,deposited film,and interfacial heat transfer *** showed that when the phosphorus content increased from 0.014wt%to 0.406wt%,the mushy zone enlarged,the complete solidification temperature delayed from1518.3 to 1459.4℃,the final contact angle decreased from 118.4°to 102.8°,indicating improved interfacial contact,and the maximum heat flux increased from 6.9 to 9.2 MW/*** the phosphorus content from 0.081wt%to 0.406wt%also accelerated the film deposition rate from 1.57 to 1.73μm per test,resulting in a thickened naturally deposited film with increased thermal resistance that advanced the transition point of heat transfer from the fifth experiment to the third experiment.

关键词： strip casting interfacial heat transfer interfacial wettability naturally deposited film phosphorus content

The use of electrokinetics promises a sustainable mining future

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The Innovation 2024年第3期5卷 17-18页

作者： Gaofeng Wang Xiaoliang liang Jianxi zhu Hongping He CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Material Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China CAS Center for Excellence in Deep Earth Science Guangzhou 510640China University of the Chinese Academy of Sciences Beijing 100049China

Moving toward a zero-carbon economy is an ambitious goal of all human *** of various metal resources plays a central role in such a *** earth elements(REEs),especially heavy REEs(HREEs),are crucial for the development of future green and zero-carbon economies due to their irreplaceable roles in many applications of renewable energy technologies;e.g.,solar panels,wind turbines,and hybrid vehicle ***-adsorption rare earth deposits(IADs)are the primary repositories for HREEs and supply more than 95%of the global HREE demand.1 However,current mining technologies using excessive ammonium salts have caused devastating harm to the local environment while exhibiting a low recovery rate of REEs,a long mining period,and landslide *** 2018,the adoption of ammonium salt-based techniques in REE mining has been prohibited,exacerbating the scarcity of REEs that could lead to disruptions of the supply ***,metals are currently almost exclusively extracted from their ores via physical excavation or chemical *** energy-intensive and environmentally damaging techniques remain among the foremost CO_(2) *** mining industry is in desperate need of a new generation of mining technology.

关键词： mining replace earth

Synthesis and optical properties of highly efficient Na_(3)KMg_(7)(PO_(4))_(6):Eu^(2+)blue phosphor for full-spectrum white-light-emitting diodes:The role of Li_(2)CO_(3)flux

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Journal of Rare Earths 2024年第7期42卷 1217-1223,I0001页

作者： Zihao Wang Sisi liang Chenyang Zhan Kunyuan Xu Jie Hu Dejian Chen Liping Song Haomiao zhu School of Physics and Materials Science Nanchang UniversityNanchang330000China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou341000China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Research Center of Rare Earth MaterialsHaixi InstituteChinese Academy of SciencesXiamen361021China

Full-spectrum phosphor-converted white-light-emitting diodes(pc-WLED)are emerging as a mainstream technology in semiconductor ***,high-performance blue phosphor which can be excited efficiently by a 400 nm NUV diode chip is still ***,we present a blue-emitting Na_(3)KMg_(7)(PO_(4))6:Eu^(2+)phosphor synthesized by the solid-reaction ***,we find that the using of Li_(2)CO_(3)as flux can significantly improve the crystal quality and thus the emission efficiency of the ***,the excitation peak of the phosphor shifts from 365 to 400 nm,which is pivotal for efficient NUV(400 nm)diode chip *** practical Eu^(2+)concentration is also enhanced by using Li_(2)CO_(3)as flux,and the absorption efficiency is greatly *** phosphor exhibits superior PL thermal stability,namely retains 94%integrated photoluminescence intensity at 150℃of that at 25℃.As a result,the optimized phosphor shows an emission band peaked at 437 nm with a bandwidth of 40 nm and a high external photoluminescence quantum yield of 51.7%.Finally,a pc-WLED was fabricated by using NKMPO:Eu^(2+)blue,Sr_(2)SiO_(4):Eu^(2+)green,CaAlSiN_(3):Eu^(2+)red phosphors,and a 400 nm NUV diode *** shows a high color rendering index of R_(a)=96.4 and a correlated color temperature of 4358 *** results prove that NKMPO:Eu^(2+)is a promising blue phosphor for full-spectrum WLED based on NUV diode chips.

关键词： Eu^(2+) Blue phosphor Na_(3)KMg_(7)(PO_(4))_(6) Full-spectrum white LEDs Rare earths