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Journal of materials Science & Technology 2024年第6期173卷 72-79页

作者： L.J.huang h.wang L.z.Ouyang m.zhu h.J.Lin School of materials Science and Engineering Key Laboratory of Advanced Energy Storage Materials of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510641China Institute of Advanced Wear&Corrosion Resistance and Functional materials Jinan UniversityGuangzhou 510632China

mg-based amorphous alloys are one of the potential hydrogen storage materials but suffer from sluggish dehydrogenation/hydrogenation(de/hydrogenation)*** this work,as a new strategy,a hydrogen pump is built on the surface of amorphous alloys to solve this *** milling crystalline yFe_(2-x)Al_(x) hydrogen storage alloy with mg_(60)La_(10)Ni_(20)Cu_(10) amorphous alloy,fine crystalline particles were seeded on amorphous alloy powder to form a“strawberry”*** to the TEm observation,a metallurgical bonding boundary formed between the mg-based amorphous matrix and the y-Fe-Al crystalline *** microstructure and de/hydrogenation kinetics investigation,the“hydrogen pump”effect of the seeded crystalline alloy was confirmed,which makes it much easier for the hydrogen to dissociate on and diffuse through the surface of the mg-based amorphous *** such effect,the h absorption rate of mg_(60)La_(10)Ni_(20)Cu_(10) amorphous alloy became almost eight times faster and it absorbs ~2.8 wt.% in 1 h at 130℃ under 4.5 mpa-h_(2).Further,fast hydrogenation can even achieve at 70℃ and the low-temperature dehydrogenation kinetics of the amorphous hydride can be also greatly *** present work proves that surface modification is of great importance for obtaining mg-based amorphous alloy with ideal hydrogen storage performance.

关键词： hydrogen storage mg-based amorphous alloy hydrogen pump Composite structure

Rescattering of stimulated Raman side scattering in nonuniform plasmas

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matter and Radiation at Extremes 2024年第5期9卷 68-76页

作者： S.Tan Q.wang y.Chen W.B.yao C.z.xiao J.F.myatt School of physics and Electronics Hunan UniversityChangsha 410082China Institute of Applied physics and Computational mathematics Beijing 100094China School of Electrical and Information Engineering Anhui University of Science and TechnologyHuainanAnhui 232001China department of Electrical and Computer Engineering University of Alberta9211116 St.NWEdmontonAlberta T6G 1H9Canada

Rescattering of stimulated Raman side scattering(SRSS)is observed for the first time via two-dimensional(2d)particle-in-cell(pIC)*** construct a theoretical model for the rescattering process,which can predict the region of occurrence of mth-order SRSS and estimate its *** rescattering process is identified by the 2d pIC simulations under typical conditions of a direct-drive inertial confinement fusion *** electrons produced by second-order SRSS propagate nearly perpendicular to the density gradient and gain nearly the same energy as in first-order SRSS,but there is no cascade acceleration to produce superhot *** studies for a wide range of ignition conditions show that SRSS and associated rescatterings are robust and important processes in inertial confinement fusion.

关键词： nonuniform acceleration scattering

STCF conceptual design report (Volume 1): physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： m.Achasov x.C.Ai L.p.An R.Aliberti Q.An x.z.Bai y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov d.Bodrov A.Bogomyagkov A.Bondar I.Boyko z.h.Bu F.m.Cai h.Cai J.J.Cao Q.h.Cao x.Cao z.Cao Q.Chang K.T.Chao d.y.Chen h.Chen h.x.Chen J.F.Chen K.Chen L.L.Chen p.Chen S.L.Chen S.m.Chen S.Chen S.p.Chen W.Chen x.Chen x.F.Chen x.R.Chen y.Chen y.Q.Chen h.y.Cheng J.Cheng S.Cheng T.G.Cheng J.p.dai L.y.dai x.C.dai d.dedovich A.denig I.denisenko J.m.dias d.z.ding L.y.dong W.h.dong V.druzhinin d.S.du y.J.du z.G.du L.m.duan d.Epifanov y.L.Fan S.S.Fang z.J.Fang G.Fedotovich C.Q.Feng x.Feng y.T.Feng J.L.Fu J.Gao y.N.Gao p.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo y.p.Guo z.h.Guo A.Guskov K.L.han L.han m.han x.Q.hao J.B.he S.Q.he x.G.he y.L.he z.B.he z.x.heng B.L.hou T.J.hou y.R.hou C.y.hu h.m.hu K.hu R.J.hu W.h.hu x.h.hu y.C.hu J.hua G.S.huang J.S.huang m.huang Q.y.huang W.Q.huang x.T.huang x.J.huang y.B.huang y.S.huang N.hüsken V.Ivanov Q.p.Ji J.J.Jia S.Jia z.K.Jia h.B.Jiang J.Jiang S.z.Jiang J.B.Jiao z.Jiao h.J.Jing x.L.Kang x.S.Kang B.C.Ke m.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin y.Lei E.Levichev C.h.Li C.Li d.y.Li F.Li G.Li G.Li h.B.Li h.Li h.N.Li h.J.Li h.L.Li J.m.Li J.Li L.Li L.Li L.y.Li N.Li p.R.Li R.h.Li S.Li T.Li W.J.Li x.Li x.h.Li x.Q.Li x.h.Li y.Li y.y.Li z.J.Li h.Liang J.h.Liang y.T.Liang G.R.Liao L.z.Liao y.Liao C.x.Lin d.x.Lin x.S.Lin B.J.Liu C.W.Liu d.Liu F.Liu G.m.Liu h.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu x.Liu y.W.Liu y.Liu y.L.Liu z.Q.Liu z.y.Liu z.W.Liu I.Logashenko y.Long C.G.Lu J.x.Lu N.Lu Q.F.Lü y.Lu y.Lu z.Lu p.Lukin F.J.Luo T.Luo x.F.Luo y.h.Luo h.J.Lyu x.R.Lyu J.p.ma p.ma y.ma y.m.ma F.maas S.malde d.matvienko z.x.meng R.mitchell A.Nefediev y.Nefedov S.L.Olsen Q.Ouyang p.pakhlov G.pakhlova x.pan y.pan E.passemar y.p.pei h.p.peng L.peng x.y.peng x.J.peng K.peters S.pivovarov E.pyata B.B.Qi y.Q.Qi W.B.Qian y.Qian C.F.Qiao J.J.Qin J.J.Qin L.Q.Qin x.S.Qin T.L.Qiu J.Rademacker C.F.Redmer h.y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear physics Novosibirsk 630090Russia CAS Key Laboratory of Theoretical physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of mining and Technology Xuzhou 221116China École polytechnique Fédérale de Lausanne(EpFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China hangzhou Institute for Advanced Study UCASHangzhou 310024China hebei Normal University Shijiazhuang 050024China hebei University Baoding 071002China hefei University of Technology Hefei 230601China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China high Energy physics Center Chung-Ang UniversitySeoul 06974Korea higher School of Economy 11 pokrovsky Bulvar Moscow 109028Russia huangshan University Huangshan 245000China hubei University of Automotive Technology Shiyan 442002China hunan Normal University Changsha 410081China hunan University of Science and Technology Xiangtan 411201China hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of high Energy physics Chinese Academy of SciencesBeijing 100049China Institute of modern physics Chinese Academy of SciencesLanzhou 730000China Institute of physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEpCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&d *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&d and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

Graph neural network-based scheduling for multi-UAV-enabled communications in d2d networks

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digital Communications and Networks 2024年第1期10卷 45-52页

作者： pei Li Lingyi wang wei Wu Fuhui zhou Baoyun wang Qihui Wu Nanjing University of posts and Telecommunications Nanjing210023China Nanjing University of Aeronautics and Astronautics Nanjing210016China

In this paper,we jointly design the power control and position dispatch for multi-Unmanned Aerial Vehicle(UAV)-enabled communication in device-to-device(d2d)*** objective is to maximize the total transmission rate of downlink Users(dUs).meanwhile,the Quality of Service(QoS)of all d2d users must be *** comprehensively considered the interference among d2d communications and downlink *** original problem is strongly non-convex,which requires high computational complexity for traditional optimization *** to make matters worse,the results are not necessarily globally *** this paper,we propose a novel Graph Neural Networks(GNN)based approach that can map the considered system into a specific graph structure and achieve the optimal solution in a low complexity ***,we first construct a GNN-based model for the proposed network,in which the transmission links and interference links are formulated as vertexes and edges,***,by taking the channel state information and the coordinates of ground users as the inputs,as well as the location of UAVs and the transmission power of all transmitters as outputs,we obtain the mapping from inputs to outputs through training the parameters of *** results verified that the way to maximize the total transmission rate of dUs can be extracted effectively via the training on ***,it also shows that the performance of proposed GNN-based method is better than that of traditional means.

关键词： Unmanned aerial vehicle d2 dcommunication Graph neural network power control position planning

discovery of new mAx-phase-like layered ternary carbide V_(8)p_(6)C:Crystal structure,thermal expansion,and elastic properties

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Journal of materials Science & Technology 2024年第7期174卷 55-62页

作者： h.x.Chen L.Sheng z.L.zhang x.C.Wen d.L.yang x.y.ye p.Q.dai School of materials Science and Engineering Fujian University of TechnologyFuzhou 350118China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of ScienceBeijing 100049China Fujian provincial Key Laboratory of Advanced materials processing and Application Fuzhou 350118China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

due to the laminated structure,mAx phases and mAx-phase-like compounds possess outstanding dam-age tolerance capability with good thermal/electrical conductivity and other charming functional prop-erties,showing a bright future for structural-functional ***,a new mAx-phase-like ternary car-bide V_(8)p_(6)C with layered characteristics was *** to the alternate stacking of hexagonal-arranged m/A/x atom layers in mAx phases,V_(8)p_(6)C has a layered structure formed by a repeated stacking of the slabs consisting of V_(6)C-octahedrons and Vp 6-distorted-octahedrons in three-atomic layers *** thermal expansion anisotropy was revealed,with the thermal expansion coefficients(TECs)along a-axis,c-axis,and the average value,equal toα_(a)=8.55(5)μK^(−1),α_(c)=10.23(5)μK^(−1),andα_(L)=9.14(5)μK^(−1),*** dilation along the c-axis was mainly dominated by out-plane V-p bonds be-tween layered *** to the pressure-dependent lattice parameters,the polycrystalline bulk modulus(B_(0)=185(9)Gpa)and high compressibility anisotropy factor(B_(a)/B_(c)=1.64)was ***-while,the second-order elastic constants were calculated,and the elastic moduli,E=303 Gpa,B=198 Gpa,G=122 Gpa,andν=0.246,were *** the weak connection between layer slabs by out-plane V1-p bond was revealed by the bond stiffness model,with a bond stiffness close to the m-A bond in mAx ***,good damage tolerance capability was predicted according to paugh’s ratio(G/B=0.616)and Cauchy pressure(p_(a)=0 Gpa,p_(c)=-7.5 Gpa),even better than those of typical mAx *** discovery of V_(8)p_(6)C provides a new member of mAx-phase-like damage-tolerant ceramic with relatively low density,moderate thermal expansion,and anisotropic compressibility,and the unique lay-ered structure is inspiring for exploring new layered ternary ceramics.

关键词： New ternary carbide mAx phase Thermal expansion Elastic constants Anisotropy

Greatly enhanced corrosion/wear resistances of epoxy coating for mg alloy through a synergistic effect between functionalized graphene and insulated blocking layer

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Journal of magnesium and Alloys 2024年第1期12卷 332-344页

作者： z.y.xue x.J.Li J.h.Chu m.m.Li d.N.zou L.B.Tong School of metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Laboratory of Advanced design and manufacturing for Vehicle Body Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of mg alloys seriously limit their potential applications in various *** conventional epoxy coating easily forms many intrinsic defects during the solidification process,which cannot provide sufficient *** the current study,we design a double-layer epoxy composite coating on mg alloy with enhanced anti-corrosion/wear properties,via the spin-assisted assembly *** outer layer is functionalized graphene(FG)in waterborne epoxy resin(WEp)and the inner layer is Ce-based conversion(Ce)*** FG sheets can be homogeneously dispersed within the epoxy matrix to fill the intrinsic defects and improve the barrier *** Ce film connects the outer layer with the substrate,showing the transition *** corrosion rate of Ce/WEp/FG composite coating is 2131 times lower than that of bare mg alloy,and the wear rate is decreased by~90%.The improved corrosion resistance is attributed to the labyrinth effect(hindering the penetration of corrosive medium)and the obstruction of galvanic coupling *** synergistic effect derived from the FG sheet and blocking layer exhibits great potential in realizing the improvement of multi-functional integration,which will open up a new avenue for the development of novel composite protection coatings of mg alloys.

关键词： mg alloy Functionalized graphene Epoxy coating Corrosion/wear resistance Blocking layer

dual-functional pOm@IL complex modulate hole transport layer properties and interfacial charge dynamics for highly efficient and stable perovskite solar cells

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Chinese Chemical Letters 2024年第7期35卷 461-464页

作者： Boyuan hu Jian zhang yulin yang yayu dong Jiaqi wang wei wang Kaifeng Lin debin xia mIIT Key Laboratory of Critical materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China

The severe interfacial charge recombination as well as the stability issues brought by the Li-TFSI still hinder the commercialization of high-performance perovskite solar cells(pSCs).here,a polyoxometalates(pOms)-based complex,pOm@ionic liquid(IL),is synthesized and applied as an effective additive that simultaneously enhances the performance and stability of *** interactions between pOm@IL complex and Li-TFSI inhibit the aggregation of *** synergistic oxidation of pOm@IL complex and Li-TFSI towards 2,2,7,7-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene(Spiro-OmeTAd)effectively enhances the electrical properties of hole transport layer film and the photovoltaic performances of *** champion device modified with the pOm@IL complex yields an excellent power conversion efficiency(pCE)of 22.73%.moreover,the incorporation of pOm@IL improves the humidity stability of *** storing under high humidity conditions(25℃,60%Rh)for 1200 h,the pOm@IL modified device retained a remarkable 81.2%of its initial *** work provides new insight into constructing pOms-based materials for high-performance photovoltaic devices.

关键词： polyoxometalates Ionic liquid perovskite solar cells Energy alignment humidity stability

Stabilizing high-efficiency iridium single atoms via lattice confinement for acidic oxygen evolution

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Nano Research 2024年第4期17卷 2492-2498页

作者： yibo wang Jiadong Jiang zhaoping Shi hongxiang Wu Jiahao yang pengbo wang Shuai hou meiling xiao Junjie Ge Changpeng Liu wei xing Laboratory of Advanced power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026.China State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Jilin province Key Laboratory of Low Carbon Chemical power Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Key Laboratory of physics and Technology for Advanced Batteries Ministry of EducationCollege of PhysicsJilin UniversityChangchun 130012China

Stable and efficient single atom catalysts(SACs)are highly desirable yet challenging in catalyzing acidic oxygen evolution reaction(OER).herein,we report a novel iridium single atom catalyst structure,with atomic Ir doped in tetragonal pdO matrix(IrSAs-pdO)via a lattice-confined *** optimized IrSAs-pdO-0.10 exhibited remarkable OER activity with an overpotential of 277 mV at 10 mA·cm^(-2) and long-term stability of 1000 h in 0.5 m h_(2)SO_(4).Furthermore,the turnover frequency attains 1.6 s^(-1) at an overpotential of 300 mV with a 24-fold increase in the intrinsic *** high activity originates from isolated iridium sites with low valence states and decreased Ir–O bonding covalency,and the excellent stability is a result of the effective confinement of iridium sites by Ir–O–pd ***,we demonstrated for the first time that SACs have great potential in realizing ultralow loading of iridium(as low as microgram per square center meter level)in a practical water electrolyzer.

关键词： lattice confinement iridium single atoms ultralow iridium loading acidic oxygen evolution proton exchange membrane water electrolysis

Baicalein suppresses Coxsackievirus B3 replication by inhibiting caspase-1 and viral protease 2A

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Virologica Sinica 2024年第4期39卷 685-693页

作者： yanyan dong Enze Shao Siwei Li Ruiqi wang dan wang Lixin wang hong yang yingxia he Tian Luan yang Chen yao wang Lexun Lin yan wang zhaohua zhong Wenran zhao department of Cell Biology Harbin Medical UniversityHarbin 150081China department of microbiology Harbin Medical UniversityHarbin 150081China

myocarditis is an inflammatory disease of the cardiac muscle and one of the primary causes of dilated *** B coxsackievirus(CVB)is one of the leading causative pathogens of viral myocarditis,which primarily affects children and young *** to the lack of vaccines,the development of antiviral medicines is crucial to controlling CVB infection and the progression of *** this study,we investigated the antiviral effect of baicalein,a flavonoid extracted from Scutellaria *** results demonstrated that baicalein treatment significantly reduced cytopathic effect and increased cell viability in CVB3-infected *** addition,significant reductions in viral protein 3d,viral RNA,and viral particles were observed in CVB3-infected cells treated with *** found that baicalein exerted its inhibitory effect in the early stages of CVB3 *** also suppressed viral replication in the myocardium and effectively alleviated myocarditis induced by CVB3 *** study revealed that baicalein exerts its antiviral effect by inhibiting the activity of caspase-1 and viral protease *** together,our findings demonstrate that baicalein has antiviral activity against CVB3 infection and may serve as a potential therapeutic option for the myocarditis caused by enterovirus infection.

关键词： Baicalein Coxsackievirus B(CVB) myocarditis 2A protease Caspase-1

Combining anodic alcohol oxidative coupling for C-C bond formation with cathodic ammonia production

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National Science Review 2024年第5期11卷 217-226页

作者： Leitao xu wei Chen Cairong wang Wenjie Wu yelin yao zhifeng huang Jingcheng Wu ming yang yandong Wu dianke xie yuqin zou Shuangyin wang State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringAdvanced Catalytic Engineering Research Center of the Ministry of Education Hunan University

Electrocatalytic oxidation of alcohols using heterogeneous catalysts is a promising aqueous, energy-efficient and environmentally friendly approach, especially for coupling different alcohols to prolong the carbon chain via co-oxidation. precisely regulating critical steps to tailor electrode materials and electrolyte composition is key to selectively coupling alcohols for targeted synthesis. however, selectively coupling different alcohols remains challenging due to the lack of effective catalyst and electrolyte design promoting specific pathways. herein, we demonstrate a paired electrolysis strategy for combining anodic oxidative coupling of ethanol（EtOh） and benzyl alcohol（phCh2Oh） to synthesize cinnamaldehyde（CAL） and cathodic ammonia production. The strategies involve:（i） utilizing the salt-out effect to balance selective oxidation and coupling rates;（ii） developing platinum-loaded nickel hydroxide electrocatalysts to accelerate intermediate coupling kinetics;（iii） introducing thermodynamically favorable nitrate reduction at the cathode to improve coupling selectivity by avoiding hydrogenation of products while generating valuable ammonia instead of hydrogen. We achieved 85% coupling selectivity and 278 μmol/h Nh3productive rate at 100 m A/cm2with a low energy input（～1.63 V）. The membrane-free, low energy, scalable approach with a wide substrate scope highlights promising applications of this methodology. This work advances heterogeneous electrocatalytic synthesis through rational design principles that integrate anodic oxidative coupling with cathodic nitrate reduction reactions, having synergistic effects on efficiency and selectivity.

关键词： anodic alcohol oxidative coupling C–C bond formation cinnamaldehyde cathodic ammonia production