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International Journal of Minerals,Metallurgy and materials 2024年第5期31卷 877-886页

作者： Qiuhong Liu qing Du Xiaobin Zhang yuan Wu Andrey A.rempel Xiangyang peng Xiongjun Liu Hui Wang wenli Song Zhaoping Lü Beijing advanced Innovation Center for.mater.als Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083China School of materials Science and Engineering Ocean University of ChinaQingdao 266100China Institute of Metallurgy of the Ural Branch of the russian Academy of Sciences Ekaterinburg 620016Russia china Nuclear power technology research Institute Co.Ltd. Shenzhen 518000China Institute of High Energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China

Short-range ordering(SrO)is one of the most important structural features of high entropy alloys(HEAs).However,the chemical and structural analyses of SrOs are very difficult due to their small size,complexed compositions,and varied *** electron microscopy(TEM)as well as its aberration correction techniques are powerful for characterizing SrOs in these compositionally complex *** this short communication,we summarized recent progresses regarding characterization of SrOs using TEM in the field of *** using advanced TEM techniques,not only the existence of SrOs was confirmed,but also the effect of SrOs on the deformation mechanism was ***,the perspective related to application of TEM techniques in HEAs are also discussed.

关键词： high entropy alloys transmission electron microscopy short-range ordering deformation mechanisms

Exfoliation Corrosion of As‑Extruded Mg–1Li–1Ca:the Influence of the Superficial Layer

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Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1339-1353页

作者： Ze‑Song Wei Zi‑You Ding Lei Cai Shao‑Xia Ma Dong‑qing Zhao Lan‑Yue Cui cheng‑Bao Liu yuan‑Sheng Yang yuan‑Ding Huang rong‑Chang Zeng Corrosion laboratory for Light Metals College of Materials Science and EngineeringShandong University of Science and TechnologyQingdao 266590China Engineering research Center for Magnesium‑Based New materials Center for Advancing Materials Performance from the Nanoscale(CAMP‑Nano)State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Shandong provincial key laboratory of High Strength Lightweight Metallic materials Advanced Materials InstituteQilu University of Technology(Shandong Academy of Sciences)Jinan 250014China Institute of Metals research Chinese Academy of SciencesShenyang 110016China Institute of Metallic Biomaterials Helmholtz-Zentrum HereonMax‑Planck‑Str.121502 GeesthachtGermany

Exfoliation corrosion(EFC)has rarely been reported for wrought magnesium *** EFC of the as-extruded Mg–1Li–1Ca alloy was observed after the removal of outermost fine-grained *** microstructure and corrosion products were investigated using optical microscopy,scanning electron microscopy,electron backscattered diffraction,X-ray diffraction,and Fourier transform infrared *** corrosion behavior was analyzed using electrochemical polarization,electrochemical impedance spectroscopy,and scanning Kelvin probe *** results indicated that the surface of Mg–1Li–1Ca,with the superficial layer removed,was more susceptible to EFC.A linear correlation between grain boundary density and corrosion resistance was ***,the influence of factors such as grain size,intermetallic compounds,different alloy surfaces,and corrosion products on EFC were discussed,and the corresponding EFC mechanism was clarified.

关键词： Magnesium alloys Exfoliation corrosion Microstructure Intermetallic compound Metamorphic skin

A compact multi-pixel superconducting nanowire single-photon detector array supporting gigabit space-to-ground communications

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Light(Science & Applications) 2024年第2期13卷 254-266页

作者： Hao Hao qing-yuan Zhao Yang-Hui Huang Jie Deng Fan Yang Sai-Ying ru Zhen Liu Chao Wan Hao Liu Zhi-Jian Li Hua-Bing Wang xue-Cou Tu La-Bao Zhang Xiao-qing Jia Xing-Long Wu Jian {4. Lin Kang pei-Heng Wu research Institute of Superconductor Electronics(rISE) School of Electronic Science and EngineeringNanjing UniversityNanjingJiangsu 210023China purple Mountain Laboratories NanjingJiangsu 211111China Hefei National laboratory HefeiAnhui 230088China National laboratory of Solid state Microstructures and Department of physics Nanjing UniversityNanjing 210023China

Classical and quantum space-to-ground communications necessitate highly sensitive receivers capable of extracting information from modulated photons to extend the communication distance from near-earth orbits to deep space *** achieve gigabit data rates while mitigating strong background noise photons and beam drift in a highly attenuated free-space channel,a comprehensive design of a multi-functional detector is *** this study,we present an innovative compact multi-pixel superconducting nanowire single-photon detector array that integrates near-unity detection efficiency(91.6%),high photon counting rate(1.61 Gcps),large dynamic range for resolving different photon numbers(1-24.,and four-quadrant position sensing function all within one ***,we have constructed a communication testbed to validate the advantages offered by such an *** 8-ppM(pulse position modulation)format communication experiments,we have achieved an impressive maximum data rate of 1.5 Gbps,demonstrating sensitivities surpassing previous benchmarks at respective *** incorporating photon number information into error correction codes,the receiver can tolerate maximum background noise levels equivalent to 0.8 photons/slot at a data rate of 120 Mbps—showcasing a great potential for daylight operation ***,preliminary beam tracking tests were conducted through open-loop scanning techniques,which revealed clear quantitative dependence indicating sensitivity variations based on beam *** on the device characterizations and communication results,we anticipate that this device architecture,along with its corresponding signal p.ocessing and coding techniques,will be applicable in future space-to-ground communication tasks.

关键词： photon supporting correction

A strained π-extended[10]cycloparaphenylene carbon nanoring

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Chinese Chemical Letters 2024年第5期35卷 171-174页

作者： Kang Wei Jiayu Li wen Zhang Bing yuan Ming-De Li pingwu Du key laboratory of precision and Intelligent Chemistry Anhui Laboratory of Advanced Photon Science and TechnologyDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China Department of Chemistry and key laboratory for preparation and Application of Ordered Structural materials of Guangdong province Shantou UniversityShantou 515063China

Herein,we report the facile synthesis of a highly strained hexabenzocoronene-containing carbon nanoring,cyclo[4.-paraphenylene[2]-2,11-hexabenzocoronenylene([4.2]CpHBC),as the segment of a[10,10]single-walled carbon nanotube([10,10]SWNT).[4.2]CpHBC was synthesized based on the platinummediated assembly of diborylbiphenyl and diborylhexabenzocoronene,forming a tetranuclear platinum complex,followed by reductive *** nanoring molecule was confirmed by NMr and HrMS,and its photophysical properties were studied using steady-state and time-resolved ***,the selective supramolecular host-guest interaction between[4.2]CpHBC and C_(60) was also investigated.

关键词： Cpp Hexabenzocoronene Fullerene Supramolecular chemistry

roadmap for rechargeable batteries:present and beyond

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Science china Chemistry 2024年第1期67卷 13-42页

作者： Sen Xin xu Zhang Lin Wang Haijun Yu Xin Chang Yu-Ming Zhao qinghai Meng pan xu chen-Zi Zhao Jiahang chen Huichao Lu Xirui Kong Jiulin Wang Kai chen Gang Huang Xinbo Zhang Yu Su Yao Xiao Shu-Lei Chou Shilin Zhang Zaiping Guo Aobing Du Guanglei Cui Gaojing Yang qing Zhao Liubing Dong Dong Zhou Feiyu Kang Hu Hong Chunyi Zhi Zhizhang yuan Xianfeng Li Yifei Mo Yizhou Zhu Dongfang Yu Xincheng Lei Jianxiong Zhao Jiayi Wang Dong Su Yu-Guo Guo Qiang Zhang Jun chen Li-Jun Wan CAS key laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China university of Chinese Academy of Sciences.Beijing 10004. China Institute of advanced Battery materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China key laboratory of advanced Functional materi{4. Ministry of EducationBeijing University of TechnologyBeijing 100124China Beijing key laboratory of Green Chemical reaction Engineering and technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China state key laboratory of Chemistry and Utilization of Carbon-Based Energy resources College of ChemistryXinjiang UniversityUrumqi 830046China Department of Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China state key laboratory of rare Earth resource Utilization Changchun Institute of Applied ChemistryChangchun 130022China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Chemical Engineering and advanced materials The University of AdelaideAdelaide 5000Australia qingdao Industrial Energy Storage research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Frontiers Science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China College of Chemistry and materials Science Jinan UniversityGuangzhou 511443China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of materials Science and Engineering City University of Hong KongHong Kong 999077China Division of Energy Storage Dalian National Laboratory for Clean Energy(DNL)Dalian Institute of Chem

rechargeable batteries currently hold the largest share of the electrochemical energy storage market,and they play a major role in the sustainable energy transition and industrial decarbonization to respond to global climate *** to the increased popularity of consumer electronics and electric vehicles,lithium-ion batteries have quickly become the most successful rechargeable batteries in the past three decades,yet growing demands in diversified application scenarios call for new types of rechargeable *** efforts are made to developing the next-generation post-Li-ion rechargeable batteries,which include,but are not limited to solid-state batteries,lithium–sulfur batteries,sodium-/potassium-ion batteries,organic batteries,magnesium-/zinc-ion batteries,aqueous batteries and flow *** the great achievements,challenges persist in precise understandings about the electrochemical reaction and charge transfer process,and optimal design of key materials and interfaces in a *** roadmap tends to provide an overview about the current research progress,key challenges and future prospects of various types of rechargeable *** computational methods for.mater.als development,and characterization techniques will also be discussed as they play an important role in battery research.

关键词： energy storage rechargeable batteries battery materials electrochemistry

preparation and Thermal Stability of AlMoON Based Solar Selective Absorption Coating

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Journal of wuhan university of technology(materials Science) 2024年第4期39卷 854-862页

作者：闵捷 yuan wenxu chen Yufei LAN Yapeng YAN Mengdi LIU Hanze chenG xudong 代路 Hubei provincial key laboratory of Green materials for Light Industry Hubei University of TechnologyWuhan 430068China Col-laborative Innovation Center of Green Light-weight materials and p.ocessing Hubei University of TechnologyWuhan 430068China School of materials and Chemical Engineering Hubei University of TechnologyWuhan 430068China School of Industrial Design Hu-bei University of TechnologyWuhan 430068China state key laboratory of advanced {4. for.mater.als synthesis and process-ing Wuhan University of TechnologyWuhan 430070China Science and technology on Thermal Energy and power laboratory Wuhan Second Ship Design&Research InstituteWuhan 430205China

AlMoON based solar selective absorption coatings were deposited on stainless steel substrate by magnetron *** coatings included infrared reflection layer Mo,absorption layer AlMoN,absorption layer AlMoON and antireflection layer AlMoO from bottom to *** surface of the deposited coatings is flat without obvious *** absorptivity and emissivity are 0.896 and 0.09,respectively,and the quality factor is *** heat treatment at 500℃-36 h,the surface roughness of the coating increases,a small number of cracks and other defects appear,and the broken part is still attached to the coating surface.A certain degree of element diffusion occurs in the coatings,resulting in the decline of the optical properties of the *** absorptivity and emissivity are 0.883 and 0.131,respectively,the quality factor is 7.06,and the pC value is *** coatings do not fail under this condition and have certain thermal stability.

关键词： AlMoON coating preparation thermal stability

CoSb_3纳米热电材料的制备及热传输特性

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物理学报 2004年第9期53卷 3130-3135页

作者：余柏林唐新峰祁琼张清杰武汉理工大学材料复合新材料国家重点实验室武汉430070

以Sb ,Co为起始原料 ,采用固相反应法合成了CoSb3.通过高能球磨制得CoSb3纳米粉末 ,用放电等离子烧结(SpS)方法制备出最小平均晶粒尺寸为 1 5 0nm的块体材料 .研究了晶粒尺寸与热传输性能之间的关系 :CoSb3化合物结构纳米化对其晶格热... 详细信息

以Sb ,Co为起始原料 ,采用固相反应法合成了CoSb3.通过高能球磨制得CoSb3纳米粉末 ,用放电等离子烧结(SpS)方法制备出最小平均晶粒尺寸为 1 5 0nm的块体材料 .研究了晶粒尺寸与热传输性能之间的关系 :CoSb3化合物结构纳米化对其晶格热导率κL 有显著影响 ,当晶粒尺寸由微米尺度减小到纳米尺度 ,晶格热导率κL 显著降低 ,但对载流子热导率κc 的影响不甚显著 .CoSb3化合物的热导率κ随晶粒尺寸的减小而降低主要是由于晶格热导率κL

关键词：热电材料纳米粉末放电等离子烧结法晶格热导率锑化钴材料热电转换器件

Methylthio side-chain modified quinoidal benzo-[1,2-b:4.5-b']dithiophene derivatives for high-performance ambipolar organic field-effect transistors

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Science china Chemistry 2024年第10期67卷 3357-3365页

作者： Li chen Xiaoqi Luo Nuoya Li Shaoqian peng qing Jiang Di Wu Jianlong Xia state key laboratory of advanced {4. for.mater.als synthesis and p.ocessing Center of Smart Materials and DevicesWuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China Department of Chemistry National University of SingaporeSingapore 117543Singapore

Quinoidal small molecule semiconductors hold huge potential in ambipolar organic field-effect transistors(OFETs)and organic spintronic ***,two quinoidal molecules with methylthio side chains were synthesized to develop molecular semiconductors with high ambipolar mobility,designated QBDTS and *** theoretical calculation results reveal that QBDTS has a closed-shell structure while QTBDTS showed an open-shell structure with a biradical character(y0)of 0.4. and its magnetic properties were further investigated using electron paramagnetic resonance(Epr)and superconducting quantum interference device(SQUID)*** methyl side chains showed a large impact on the molecular orbital *** HOMO/LUMO levels of QBDTS and QTBDTS were measured to be-5.66/-4.56 and-5.27/-4.4. eV,respectively,which are favorable for ambipolar charge transport in ***,the spin-coated QBDTS displayed hole and electron mobilities of 0.01 and 0.5 cm^(2)V^(-1)s^(-1)while QTBDTS showed a record high hole mobility of 1.8 cm^(2)V^(-1)s^(-1)and electron mobility of 0.3 cm^(2)V^(-1)s^(-1).Moreover,comparative studies of the thin film morphologies also manifested the beneficial influence of methyl side chains on film crystallinity and molecule *** results strongly proved that methyl side chain engineering can be a simple but efficient strategy for modulating electronic properties and molecular stacking *** work also represents a big advancement for quinoidal molecular semiconductors in ambipolar OFET applications.

关键词： side-chain modification quinoidal molecules ambipolar diradicals organic field-effect transistors

High-timing-precision detection of single X-ray photons by superconducting nanowires

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National Science review 2024年第1期11卷 194-203页

作者： Shuya Guo Jingrou Tan Hengbin Zhang Jinguang Wang Tianhao Ji Labao Zhang Xiaolong Hu Jian chen Jun Xie Kai Zou Yun Meng Xiaomin Bei Ling-An Wu Qi chen Hao Wang xuecou Tu Xiaoqing Jia qing-yuan Zhao Lin Kang peiheng Wu research Institute of Superconductor Electronics Nanjing University Qian xuesen laboratory of Space technology Beijing National laboratory of Condensed Matter physics Institute of Physics Chinese Academy of Sciences Hefei National laboratory School of precision Instrument and Optoelectronic Engineering Tianjin University key laboratory of Optoelectronic Information Science and technology Ministry of Education

precisely acquiring the timing information of individual X-ray photons is important in both fundamental research and practical applications. The timing precision of commonly used X-ray single-photon detectors remains in the range of one hundred picoseconds to microseconds. In this work, we report on high-timing-precision detection of single X-ray photons through the fast transition to the normal state from the superconductive state of superconducting nanowires. We successfully demonstrate a free-running X-ray single-photon detector with a timing resolution of 20.1 ps made of 100-nm-thick niobium nitride film with an active area of 50 μm by 50 μm. By using a repeated differential timing measurement on two adjacent X-ray single-photon detectors, we demonstrate a precision of 0.87 ps in the arrival-time difference of X-ray photon measurements. Therefore, our work significantly enhances the timing precision in X-ray photon counting, opening a new niche for ultrafast X-ray photonics and many associated applications.

关键词： single-photon detection timing precision superconductor ultrafast phenomenon pulsar X-ray navigation

Highly Stable sp^(2) Carbon-Conjugated porous Organic Cages

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CCS Chemistry 2024年第1期6卷 149-156页

作者： Fenglei Qiu xun chen wenjing Wang Kongzhao Su Daqiang yuan state key laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002 College of Chemistry Fuzhou UniversityFuzhouFujian 350116 university of the Chinese Academy of Sciences Beijing 100049

The high-yield synthesis of ultrastable porous organic cages(pOCs)by facile methods is highly desirable but *** by highly stable sp^(2) carbon-conjugated(C=C)covalent organic frameworks,we used rational design and synthesized the first family of sp^(2) carbon-linked pOCs(sp^(2)c-pOCs)with triangular prism shapes by a one-step Knoevenagel reaction that is a high yield[2+3]condensation *** stability of sp^(2)c-pOC was demonstrated under strenuous conditions involving for example concentrated HCl or saturated NaOH ***^(2)c-pOC was used as a robust adsorbent for efficient separation of CO_(2)/CH_(4. or CO_(2)/N_(2) *** view of their facile synthesis and unique properties,we expect widespread use of these sp^(2) C=C linkages in the development of pOC materials.

关键词： porous organic cages Knoevenagel condensation sp^(2)C=C linkage exceptional chemical stability gas adsorption and separation properties