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Multispectral ErBO_(3)@ATO porous composite microspheres with laser and electromagnetic wave compatible absorption

Rare Metals 2023年第7期42卷 2406-2418页

作者： Song-Song Guo Jian-Ping Zhu Zhi Song Qing-Guo ren Tong Feng Qi-Tu Zhang li-Xi Wang College of Materials Science and Engineering Nanjing Tech UniversityNanjing211816China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing211816China

The high-speed advances in electromagnetic(EM)wave and laser detection technology have accelerated the innovation of absorbing materials toward specific multi-band *** is difficult to achieve dual absorption of EM waves and near-infrared lasers by absorbing materials in a single frequency band;the design of high-performance laser-EM wave multi-band compatible absorbing materials is ***,ErBO_(3)@ATO(erbium borate/antimony-doped tin oxide)porous composite microspheres with an average size of 15-20μm are produced solvothermal method and self-assembly,which exhibit excellent laser-EM wave compatible *** porous structure on the surface of ErBO_(3)microspheres provides heterogeneous nucleation sites for ATO particle *** minimum reflectivity of the composite for1.06 and 1.54μm lasers is 9.59%and 4.79%,which is0.57%and 3.78%lower than those of pure ATO particles,*** composites containing 70 wt%porous ErBO_(3)@ATO reveal the minimum reflection loss(RL)value of-31.6 dB,and an effective absorption band width reaches 2.08 GHz at 2.5 mm *** mechanism of near-infrared laser and EM wave compatible absorption is the synergistic effect of the energy level transition of ErBO_(3)and the dielectric loss of ATO,coupled with the large surface area and porous structure of the micro ***,the designed porous ErBO_(3)@ATO composite microspheres can be an attractive choice for lasers and EM wave high-quality compatible absorption.

关键词： Core-shell ErBO_(3)@antinomy-doped tin oxide(ATO) Porous microsphere Laser reflection Electromagnetic(EM)wave loss

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Rechargeable Metasurfaces for Dynamic Color Display Based on a Compositional and Mechanical Dual-Altered Mechanism

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Research 2023年第1期2022卷 367-377页

作者： Le Yang Xiaorong Hong Jiafang li Chang-Yin Ji Yu Han Shanshan Chen Hanqing Jiang Wei-li Song Hao-Sen Chen Daining fang Beijing Key Laboratory of lightweight Multi-Functional Composite Materials and Structures Institute of Advanced Structure TechnologyBeijing Institute of TechnologyBeijing 100081China Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education) Beijing Key Lab of Nanophotonics e Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Engineering Westlake UniversityHangzhou 310024China

Dynamic color display can be realized by tunable optical metasurfaces based on the compositional or structural ***,it is still a challenge to realize the efficient modulation by a single-field ***,we report a novel compositional and mechanical dual-altered rechargeable metasurface for reversible and broadband optical reconfiguration in both visible and near-infrared wavelength *** employing a simple fabrication and integration strategy,the continuous optical reconfiguration is manipulated through an electro-chemo-mechanical coupled process in a lithium ion battery,where lithiation and delithiation processes occur dynamically under a low electric voltage(ling the phase transformation from Si to li,Si,both structural morphology and optical scattering could be rapidly and dramatically tailored within 30s,exhibiting high-contrast colorization and decolorization in a large-area nanofilm and showing long cyclic *** wide-angle reconfiguration of high-resolution structural colors in bowtie metasurfaces is demonstrated from anomalous *** results provide a multifield mechanism for reconfigurable photonic devices,and the new platform can be introduced to the multidimensional information encryption and storage.

关键词： scattering figuration Dynamic

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Tandem Catalysis of One Metallocene Catalyst Combined with Two Different Cocatalysts for Preparing Branched Polyethylene

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Chinese Journal of Polymer Science 2016年第3期34卷 298-306页

作者：杨敏 qin li xiang-liu li bo-wen hu xiao-fang dong jia-yan qu 刘宾元 xi wang xiao-yu hao Institute of Polymer Science and Engineering Hebei University of Technology Tianjin 300130 China

Tandem catalytic systems, consisting of ethylene bis（indenyl） zirconium dichloride with two different cocatalysts, alkylaluminum（diethylaluminium chloride or trialkylaluminum） and methylaluminoxane, were employed in preparing branched polyethylene from ethylene as sole monomer. The catalytic system rac-Et（Ind）2Zr Cl2/Al Et2Cl/MAO exhibited high incorporation（29.0/1000C）. The oligomerization and copolymerization reaction conditions in the tandem catalytic system, as well as the different cocatalysts, have effects on the catalytic activity and the properties of the obtained polymer, such as melting temperature, crystallinity, molecular weight and molecular weight distribution. Moreover, the oligomerization reaction condition is the main factor in altering the properties and structures of polyethylene.

关键词： Tandem catalysis Branched polyethylene Metallocene Alkylaluminum Methylaluminoxane

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On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H_(2)Production

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Research 2021年第1期2021卷 923-934页

作者： Yao Chen Dong Yang Yuchen Gao Runlai li Ke An Wenjing Wang Zhanfeng Zhao Xin Xin Hanjie ren Zhongyi Jiang Key Laboratory for Green Chemical Technology School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Key Laboratory of Systems Bioengineering of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China

The rational design of an outer shell is of great significance to promote the photocatalytic efficiency of core-shell structured ***,a covalent organic framework(COF)nanoshell was designed and deposited on the cadmium sulfide(CdS)core surface.A typical COF material,TPPA,featuring exceptional stability,was synthesized through interfacial polymerization using 1,3,5-triformylphloroglucinol(TP)and p-phenylenediamine(PA)as *** nanoshell endows the CdS@TPPA nanosphere with ordered channels for unimpeded light-harvesting and fast diffusion of reactants/products and well-defined modular building blocks for spatially charge ***,the heterojunction formed between CdS and TPPA can further facilitate the effective charge separation at the interface via lower exciton binding energy compared with that of pristine *** modulating the thickness of TPPA nanoshell,the CdS@TPPA nanosphere photocatalyst with the nanoshell thickness of about 8±1 nm exhibits the highest photocatalytic H2 evolution of 194.1μmol h^(-1)(24.3 mmol g^(-1)h^(-1),8 mg),which is superior to most of the reported COF-based *** framework nanoshell in this work may stimulate the thinking about how to design advanced shell architecture in the core-shell structured photocatalysts to achieve coordinated charge and molecule transport.

关键词： shells exceptional rational

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Low-cost and stable SFX-based semiconductor materials in organic optoelectronics

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Resources Chemicals and Materials 2023年第1期2卷 100-109页

作者： Chen-Sheng li Bao-Yi ren Ya-Guang Sun College of Science Shenyang University of Chemical TechnologyShenyang LiaoningChina

In the progress of realizing the commercialization of organic optoelectronic materials,the four basic coherent factors are stability,cost,performance,and processability,all which determine the results of device ***[fluorene-9,9′-xanthene](SFX)has been becoming the robust building-block that fulfilling the practical requirements due to its key features of non-planarity,one-pot facile availability,well-defined quality assurance as well as performance *** this review,we introduce the SFX and its analogues,including synthesis,molecular design,device performance,and structure-property relationship,in the applications of organic light-emitting diodes(OLEDs),organic photovoltaics,perovskite solar cells(PSCs)and ***,emitters or hosts for OLED and hole transport materials for PSCs are highlighted at the level of molecular configuration and film *** the thread from intrinsic photoelectric properties,molecular packing to optoelectronic application,the advantage of stability and low-cost of SFX-based materials are illuminated,and an outlook is given providing orientation for bring SFX into the fields of catalysis and energy chemistry in view of its binary conjugation and three-dimensional configuration.

关键词： Organic optoelectronic materials Spiro[fluorene-9,9′-xanthene](SFX) Synthesis Application

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Boosting chemical looping combustion performances of red mud with transition metal oxides

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Carbon Resources Conversion 2022年第2期5卷 119-130页

作者： Jingchong Yan li Zhang Jing He Muxin liu Zhiping Lei Zhanku li Zhicai Wang Shibiao ren Hengfu Shui School of Chemistry&Chemical Engineering Anhui Province Key Laboratory of Coal Clean Conversion and High Valued UtilizationAnhui University of TechnologyMaanshan 243002China School of Computer Science and Technology Anhui University of TechnologyMaanshan 243002China School of Materials and Chemical Engineering Bengbu UniversityBengbuAnhui Province 233030China

Red mud(RM)is industrial solid waste that severely threatens environmental safety,and its resource utilization is significant both economically and *** presence of ferric oxides(Fe_(2)O_(3))makes RM potential oxygen carriers(OC)for chemical looping combustion(CLC),which is a promising,novel and low-carbon combustion *** work examined the CLC performance of two kinds of RM using gaseous and solid *** Fe_(2)O_(3) and alkali and alkaline-earth metals(AAEM)species within RM enhance carbon conversion during ***,the reactivity of original RM is unsatisfactory due to its low oxygen transporting capacity(R_(0),lower than 0.1),carbon conversion(X_(C),less than 0.8),CO_(2) selectivity(Y_(CO_(2)),less than 0.9)and instable *** metal oxides including CuO and NiO were used to modify the RM through wet *** oxides notably improve RM performances,i.e.,X_(C) and Y_(CO_(2)) are notably ***,deteriorations during redox cycles are observed because of particle agglomeration and sintering,especially for the RM modified with *** the cost,potential environmental risk and efficacy,CuO is superior to NiO thanks to the enhanced performances of the modified RM-based OC including higher X_(C)(about 0.9),Y_(CO_(2))(approximately 1)and stronger sintering resistance.

关键词： Red mud Chemical looping combustion Oxygen carriers Reactivity Agglomeration

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Al matrix composites fabricated by solid-state cold spray deposition:A critical review

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Journal of Materials Science & Technology 2021年第27期86卷 20-55页

作者： Xinliang Xie Shuo Yin Rija-nirina Raoelison Chaoyue Chen Christophe Verdy Wenya li Gang ji Zhongming ren Hanlin liao ICB UMR 6303 CNRSUniv.Bourgogne Franche-ComtéUTBMF-90010BelfortFrance Univ.lille CNRSINRAECentrale LilleUMR 8207UMET-UnitéMatériaux et TransformationsF-59000LilleFrance Department of Mechanical and Manufacturing Engineering Trinity College DublinThe University of DublinParsons BuildingDublin 2Ireland Institute of Mechanics Materials and Civil EngineeringUC LouvainLouvain-la-NeuveBelgium State Key Laboratory of Advanced Special Steels School of Materials Science and EngineeringShanghai UniversityShanghai200444China State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Friction Welding TechnologiesNorthwestern Polytechnical UniversityXi’an710072China

Cold spraying(CS),or cold gas dynamic spray(CGDS),is an emerging solid-state powder deposition process,allowing fast and mass production and restoration of metallic *** of metal matrix composites(MMCs)has attracted increasing attention from academia and industry over the last decades,especially in the area of Al matrix composites(AMCs),which have demonstrated a high potential for applications in aerospace,automotive,and electronics *** article aims to summarize the recent development of CS-processed AMCs in terms of composite powder preparation,deposition processing,microstructure evolution,mechanical and corrosion ***,this review also reports the relevant research progress with the focus on post-treatments of the AMCs for CS additive manufacturing applications including heat treatment,hot rolling,and friction stir ***,the challenges and perspectives on the fabrication of advanced AMCs by CS are addressed.

关键词： Al matrix composites Solid-state cold spraying Additive manufacturing Post-treatments

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Emerging rechargeable aqueous magnesium ion battery

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Materials Reports(Energy) 2022年第4期2卷 36-53页

作者： Mudi li Yaxi Ding Ying Sun Yujin ren Jinzhang Yang Bosi Yin Hui li Siwen Zhang Tianyi Ma Institute of Clean Energy Chemistry Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning ProvinceCollege of ChemistryLiaoning UniversityShenyang110036China School of Science RMIT UniversityMelbourneVIC3000Australia

Recently,aqueous rechargeable batteries have played an essential role in developing renewable energy due to the merits of low cost,high security,and high energy *** various aqueous-based batteries,aqueous magnesium ion batteries(AMIBs)have rich reserves and high theoretical specific capacity(3833 mAh cm3).However,for future industrialization,AMIBs still face many scientific issues to be solved,such as the slow diffusion of magnesium ions in the material structure,the desolvation penalty at electrode-electrolyte interfaces,the cost of water-in-salt electrolyte,the low voltage of traditional aqueous electrolyte,*** yet a comprehensive summary of the components of AMIBs is lacking in the research *** review mainly introduces the exploration and development of AMIB systems and related *** conduct an in-depth study of the cathode materials appropriate for magnesium ion batteries from their crystal structures,focusing primarily on layered structures,spinel structures,tunnel structures,and three-dimensional framework *** also investigate the anode materials,ranging from inorganic materials to organic materials,as well as the electrolyte materials(from the traditional electrolyte to water-in-salt electrolyte).Finally,some perspectives on ensuing optimization design for future research efforts in the AMIBs field are summarized.

关键词： Aqueous magnesium ion batteries(AMIBs) Magnesium storage mechanism Cathode materials Anode materials Electrolytes

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Design of artificial nucleases and studies of their interaction with DNA

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Science China Chemistry 2009年第4期52卷 402-414页

作者： ZHANG JingJing SHAO Ying WEI li li Ying SHENG Xin liU fang LU GuoYuan State Key Laboratory of Coordination Chemistry Department of ChemistryNanjing UniversityNanjing 210093China

The design of artificial nucleases and nuclease mimics has attracted extensive attention and made great progress due to their significant scientific meanings and potential application in the field of gene medicine and molecular biology. This paper reviews recent progress in the investigation of artificial nuclease,including "bifunctional cooperative catalysis","dinuclear synergistic catalysis","metal-free catalysis" ,and especially,the studies of aza-crown ethers as artificial nucleases and their interaction with DNA.

关键词： artificial nuclease DNA cleavage metal-free cleavage DNA guanidinium group aza-crown ether

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Postharvest ASM or Harpin Treatment Induce Resistance of Muskmelons Against Trichothecium roseum

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Agricultural Sciences in China 2008年第2期7卷 217-223页

作者： WANG Yi li Xuan BI Yang GE Yong-hong li Yong-cai XIE fang College of Food Science and Engineering Gansu Agricultural Unversity Lanzhou 730070 P.R.China College of Chemical and Biological Engineering Lanzhou Jiaotong University Lanzhou 730070 P.R.China

Induced resistance was studied in muskmelons （cv. Yindi） inoculated Trichothecium roseum with postharvest 1,2,3- benzothiadiazole-7-carbothioic acid S-methyl ester （ASM）（100 mg L^-1） or harpin （50 mg L^-1） treatment. Both ASM and harpin significantly reduced lesion diameter in inoculated fruit. Lesion diameter was limited in the treated and untreated halves of the same fruit, indicating that the local and systemic resistance was induced. Inhibiting efficacy of elicitors lasted 7 and 5 days in the treated and untreated halves. The resistance increased by the chemicals was associated with the activation of peroxidase （POD） and chitinase （CHT）. The elicitors induced a significantly and progressively increasing activity of POD and CHT in the treated and untreated halves, and the activation lasted at least 5 days. The activities of POD isoenzymes increased in the treated fruit. However, no new enzyme band was found in the treated and untreated halves.

关键词： muskmelon elicitor decay induced resistance

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