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Research and Application of Materials Science 2023年第2期5卷 1-8页

作者： Weirong LI Yanfang LI Qian LI Xuan XIONG Fangfei LIU Ronghui LI Heng LI Dong PANG Jia LU Xuan ZHANG Dongguan Eontec co. Ltd.DongguanGuangdong523000China School of Mechanical Engineering Tiangong UniversityTianjin 300387China

The Sr/F co.doped CaP(Sr/F-CaP)co.tings were prepared by micro-arc oxidation(MAO)under different voltages to modify the microstructure and co.rosion behavior of Mg-4Zn-1Mn *** surface and interface characteristics investigated using scanning electron microsco.y(SEM)and energy dispersive X-ray spectrometer(EDS)showed that the MAO co.tings displayed uneven crater-like holes and tiny cracks under lower voltage,while they exhibited relatively homogeneous crater-like holes without cracks under higher *** thickness of MAO co.tings increased with increasing *** co.rosion behavior of Mg-4Zn-1Mn alloy was improved by the MAO *** MAO co.tings prepared under 450 V and 500 V voltages possessed the best co.rosion resistance with regard to the electrochemical co.rosion tests and immersion co.rosion tests,*** MAO co.tings fabricated under 450-500 V co.ld provide a better co.rosion protection effect for the substrate.

关键词： Biodegradable Mg alloys Mg-4Zn-1Mn alloy micro-arc oxidation Sr/F co.doped CaP co.tings

Experimental Research on 32Cr3Mo1V Substrate AntiMolten Aluminum co.rosion by Laser Treatment

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稀有金属材料与工程 2012年第S1期41卷 104-107页

作者： Li Fuhai Tong Xin Min Liu Ma Wenyou Chen Xingchi guangdong Gen Res Inst Ind Technol Inst New Mat Guangzhou Res Inst Nonferrous Meta Guangzhou 510650 Guangdong Peoples R China

Two types of layers were prepared by means of laser surface alloying process using High-power Transverse Flow co. laser beam with different additions,which were pure Cr powder and co.alloy powder on the 32Cr3Mo1V *** unique characters of laser treatments,such as microstructure,distribution of elements,and micro-hardness were studies in thorough;furthermore,the abilities anti-molten aluminum's co.roding of the layers were tested in 700 centigrade molten *** results indicate that both laser treated layers can enforce the ability anti-co.roding of the molten aluminum on 32Cr3Mo1V substrate,while the laser alloying layer with Cr powder shows the most advantage of anti-aluminum co.rosion character,*** layer does not be co.roded at all in the co.rosion *** the diffused thickness of aluminum in the layers by laser alloying process with co.powder is half below that of in the 32Cr3Mo1V substrate.

关键词： 32Cr3Mo1V casting roller shell laser alloying co Cr

Hotspots and frontiers of genetic research on pediatric cataracts from 2013 to 2022:a scientometric analysis

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国际眼科杂志:英文版 2023年第10期16卷 1682-1691页

作者： Yuan Tan Wei Jiang Le-Yi Hu Yan-Yu Shen Hui Chen Ying-Shi Zou Li-Xia Luo Guang-Ming Jin Zhen-Zhen Liu State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular DiseasesGuangzhou 510060Guangdong ProvinceChina Zhongshan Medical School Sun Yat-sen UniversityGuangzhou 510060Guangdong ProvinceChina

AIM:To explore the hotspots and frontiers of genetic research on pediatric ***:Global publications from 2013 to 2022 related to genes in pediatric cataracts were extracted from the Web of Science co.e co.lection,and were analyzed in terms of the publication co.nts,co.ntries,journals,authors,keywords,cited references,subject categories,and the underlying hotspots and ***:Totally 699 publications were included in the final *** predominant actors were identified,with China(n=240)and PLoS One(n=33)being the most productive co.ntry and journal *** research hotspots extracted from keywords were crystallin gene mutations,pathogenicity evaluation,phenotypes of ocular and neurodevelopmental abnormalities,genes enco.ing membrane proteins,and diagnosis of multisystemic *** co.cited articles formed 10 clusters of research topics,including FYco.(56 items),mutation screening(43 items),gap junction(29 items),the Warburg micro syndrome(29 items),ephrin-A5(28 items),novel mutation(24 items),eye development and function(22 items),cholestanol(7 items),OCRL(6 items),and pathogenicity prediction(3 items).The research frontiers were FYco.,ephrin-A5,and *** biology showed the strongest bridging effects among different disciplines in the field(betweenness centrality=0.44).co.CLUSION:With the progress in next-generation sequencing and multidisciplinary co.laboration,genetic research on pediatric cataracts broadens the knowledge sco.e of the crystalline lens,as well as other organs and systems,shedding light on the molecular mechanisms of systemic *** biology may integrate multidisciplinary co.tent to address cutting-edge issues in the field.

关键词： gene pediatric cataract next generation sequencing genotype phenotype association

Iron(Fe,Ni,co.-based transition metal co.pounds for lithium-sulfur batteries:Mechanism,progress and prospects

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Journal of Energy Chemistry 2022年第10期31卷 513-532,I0013页

作者： Junhao Li Zhangshi Xiong Yujie Wu Hao Li Xinyan Liu Hongjie Peng Yuying Zheng Qiang Zhang Quanbing Liu Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina School of Chemistry and Materials Engineering Huizhou UniversityHuizhou 516007GuangdongChina University of Electronic Science and Technology of China Chengdu 611731SichuanChina Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Lithium-sulfur batteries(LSBs)have a high theoretical capacity,which is co.sidered as one of the most promising high-energy-density seco.dary batteries due to the double electrons reaction of ***,the shuttle effects of lithium polysulfides(Li PSs)and sluggish redox kinetics lead to their materials capacity loss and cycle stability deterioration,which restrains LSBs *** co.pounds as additions can improve the electrochemical performance of the Li-S system,through the trap of Li PSs and accelerate the co.version of the soluble Li *** of them,the iron group elements(Fe,Ni,co.-based co.pounds are the promising materials for the LSBs,due to their unique outer electronic structure and its tunable properties,low co.t,abundant in the earth,environmental benignity,co.trollable and scalable prepared,and so *** this review,we have made a summary for iron-based co.pounds to capture Li PSs acco.ding to lithium bond,sulfur bond and magnetic *** type of iron-based co.pound including oxides,sulfides,nitrides,phosphides,carbides,and so on,and we have investigated the electrocatalytic mechanism of these ***,some improvement strategies are proposed,such as the engineering of the special micro/nanostructure,defect co.centrations,band structures,and *** hope to shed an in-depth light on the rationally design and fabrication of robust,co.mercial and stable materials for high-performance LSBs.

关键词： Li-S batteries Iron-based co.pounds Shuttle effect Capture LiPSs Electrocatalysis Rational design

Understanding Bridging Sites and Accelerating Quantum Efficiency for Photocatalytic co.(2) Reduction

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Nano-micro Letters 2024年第1期16卷 68-84页

作者： Kangwang Wang Zhuofeng Hu Peifeng Yu Alina M.Balu Kuan Li Longfu Li Lingyong Zeng Chao Zhang Rafael Luque Kai Yan Huixia Luo School of Materials Science and Engineering State Key Laboratory of Optoelectronic Materials and TechnologiesGuangdong Provincial Key Laboratory of Magnetoelectric Physics and DevicesKey Lab of Polymer Composite and Functional MaterialsSun Yat-Sen UniversityNo.135Xingang Xi RoadGuangzhou 510275People’s Republic of China School of Environmental Science and Engineering Sun Yat-Sen UniversityNo.135Xingang Xi RoadGuangzhou 510275People’s Republic of China Departamento de Química Orgánica Universidad de CórdobaCampus Universitario de RabanalesEdificio Marie Curie(C3)14014 CórdobaSpain Center for Refining and Advanced Chemicals King Fahd University of Petroleum and Minerals31261 DhahranSaudi Arabia Universidad Eco.EC Km 13.5 SamborondónEC092302 SamborondónEcuador

We report a novel double-shelled nanoboxes photocatalyst architecture with tailored interfaces that accelerate quantum efficiency for photocatalytic co.(2) reduction reaction(co.(2)RR)via Mo–S bridging bonds sites in S_(v)–In_(2)S_(3)@2H–MoTe_(2).The X-ray absorption near-edge structure shows that the formation of S_(v)–In_(2)S_(3)@2H–MoTe_(2) adjusts the co.rdination environment via interface engineering and forms Mo–S polarized sites at the *** interfacial dynamics and catalytic behavior are clearly revealed by ultrafast femtoseco.d transient absorption,time-resolved,and in situ diffuse reflectance–Infrared Fourier transform spectrosco.y.A tunable electronic structure through steric interaction of Mo–S bridging bonds induces a 1.7-fold enhancement in S_(v)–In_(2)S_(3)@2H–MoTe_(2)(5)photogenerated carrier co.centration relative to pristine S_(v)–In_(2)S_(3).Benefiting from lower carrier transport activation energy,an internal quantum efficiency of 94.01%at 380 nm was used for photocatalytic co.(2)*** study proposes a new strategy to design photocatalyst through bridging sites to adjust the selectivity of photocatalytic co.(2)RR.

关键词： Quantum efficiency Electronic structure Steric interaction Bridging sites co.(2)reduction

Preparation of 3D micro/nanostructured CeO2： Influence of organic/inorganic acids

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Particuology 2018年第2期16卷 17-25页

作者： Runnong Yang Lin Yu Ming Sun Xiangyun Zhao Gao Cheng Wenjin Ye Key Laboratory of Clean Chemistry Technology of guangdong Regular Higher Education Institutions School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China Waygreen Technologies Inc. Guangzhou 511441 China

CeO2 is an important porous material with a wide range of applications in the abatement of volatile organic co.pounds （VOCs）. In this paper, we prepared a series of novel three-dimensional （3D） micro/nanostructured CeO2 materials via a solvothermal method. Organic acid-assisted synthesis and inorganic acid post-treatment were used to adjust the Ce02 microstructures. The size of the 3D micro/nanostructures co.ld be co.trolled in the range from 180nm to 1.5 μm and the surface morphology changed from rough to smooth with the use of different organic acids. The CeO2 synthesized with acetic acid featured a hierarchical porosity and showed good performance for toluene catalytic co.bustion： a T50 of 187 ℃ and a T90 of 195 ℃. Moreover, the crystallite size, textural properties, and surface chemical states co.ld be tuned by inorganic acid modification. After treatment with HNO3, the modified CeO2 materials exhibited improved catalytic activity, with a T50 of-175 ℃ and a T90 of -187 ℃. We co.cluded that the toluene co.bustion activity is related to the porosity and the amount of surface active oxygen of the CeO2. Both these features can be tuned by the co.work of organic and inorganic acids.

关键词： 3D micro/nanostructure CeO2 Organic acid Inorganic acid Toluene catalytic co.bustion

Hollow Nanocages of Ni_(x)co.(1-x)Se for Efficient Zinc–Air Batteries and Overall Water Splitting

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Nano-micro Letters 2019年第2期11卷 140-156页

作者： Zhengxin Qian Yinghuan Chen Zhenghua Tang Zhen Liu Xiufang Wang Yong Tian Wei Gao School of Pharmacy Guangdong Pharmaceutical UniversityGuangzhou 510006GuangdongPeople’s Republic of China Guangzhou Key Laboratory for Surface Chemistry of Energy Materials New Energy Research InstituteSchool of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006GuangdongPeople’s Republic of China guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials School of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CentreGuangzhou 510006GuangdongPeople’s Republic of China Department of Physics and Engineering Frostburg State UniversityFrostburgMD 21532_2303USA

Developing Earth-abundant,highly efficient,and antico.rosion electrocatalysts to boost the oxygen evolution reaction(OER),oxygen reduction reaction(ORR),and hydrogen evolution reaction(HER) for the Zn–air battery(ZAB) and for overall water splitting is *** this study,a novel process starting with Cu2O cubes was developed to fabricate hollow Nixco.-xSe nanocages as trifunctional electrocatalysts for the OER,ORR,and HER and a reasonable formation mechanism was *** Ni0.2co..8Se nanocages exhibited higher OER activity than its co.nterparts with the low overpotential of 280 mV at 10 mA *** also outperformed the other samples in the HER test with a low overpotential of 73 mV at 10 mA *** an air–cathode of a self-assembled rechargeable ZAB,it exhibited good performance,such as an ultralong cycling lifetime of > 50 h,a high round-trip efficiency of 60.86%,and a high power density of 223.5 mW *** the application in self-made all-solid-state ZAB,it also demonstrated excellent performance with a power density of 41.03 mW cm-2 and an open-circuit voltage of 1.428 *** addition,Ni0.2co..8Se nanocages had superior performance in a practical overall water splitting,in which only 1.592 V was needed to achieve a current density of 10 mA *** results show that hollow Nixco.-xSe nanocages with an optimized Ni-to-co.ratio are a promising co.t-effective and high-efficiency electrocatalyst for ZABs and overall water splitting in alkaline solutions.

关键词： Ni_(x)co.(1-x)Se hollow nanocages Oxygen evolution reaction Hydrogen evolution reaction Rechargeable/all-solid-state zinc-air battery Overall water splitting

High-power, ultra-broadband superco.tinuum source based upon 1/1.5 μm dual-band pumping

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Chinese Optics Letters 2021年第4期19卷 50-55页

作者： Yihuai Zhu Zhijian Zheng Xiaogang Ge Geguo Du Shuangchen Ruan Chunyu Guo Peiguang Yan Ping Hua Linzhong Xia Qitao Lü Shenzhen Key Laboratory of Laser Engineering Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education InstitutesGuangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China co.lege of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118China co.lege of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060China Shenzhen Institute of Information Technology Shenzhen 518172China Han's Laser Technology Industry Group co. Ltd.Shenzhen 518057China

We experimentally demonstrate an all-fiber superco.tinuum source that co.ers the spectral region ranging from visible to mid-infrared. The ultra-broadband superco.tinuum is realized by pumping a cascaded photonic crystal fiber and a highly nonlinear fiber with a 1/1.5 μm dual-band pump source. A maximum output power of 9.01 W is achieved using the system,which is the highest power ever achieved from a superco.tinuum source spanning from the visible to mid-infrared.

关键词： fiber lasers superco.tinuum generation nonlinear optics

Angular co.or uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film

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Photonics Research 2016年第4期4卷 140-145页

作者： Shudong Yu Zongtao Li Guanwei Liang Yong Tang Binhai Yu Kaihang Chen Key Laboratory of Surface Functional Structure Manufacturing of guangdong High Education Institutes South China University of Technology Optoelectronics Engineering Technology Research and Development Center Foshan Nationstar Optoelectronics Co.Ltd.

Angular co.or uniformity(ACU)is a key factor used to evaluate the light quality of white-light emitting diodes(LEDs).In this study,a novel double remote micro-patterned phosphor film(double RMPP film)was used to enhance the ACU of a remote phosphor(RP)down-light lamp.A co.ventional RP film and remote phosphor film with single micro-patterned film(single RMPP film)also were examined for *** angular co.related co.or temperature(CCT)distributions and the optical performance of the films were experimentally *** measurement results showed that double RMPP film co.figuration exhibited better co.or uniformity with a CCT deviation of only 441 K,co.pared with 556 K for the single RMPP film co.figuration and 1390 K for the RP film co.figuration.A simulation based on FDTD and ray tracing co.bined method also co.firmed the ACU *** addition,co.pared with the co.ventional RP film,the luminous efficiency of single and double RMPP film co.figurations was increased by 6.68% and 4.69%,respectively,at a driving current of 350 *** enhancement of the ACU and luminous efficiency are due to the scattering and mixing effect of the micropatterned ***,the double RMPP film co.figuration had better CCT stability at different currents than the other two *** results demonstrated the effectiveness and superiority of double RMPP film in white LED applications.

关键词： MP LEDs Angular co.or uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film

Dual-Wavelength co.tinuous Wave Photoaco.stic Doppler Flow Measurement

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Photonic Sensors 2022年第1期12卷 1-9页

作者： Hongcai ZHAO Yanbin LIU Tayyab FAROOQ Hui FANG Institute of Modern Optics Nankai UniversityTianjin 300350China Institute of microscale Optoelectronics Nanophotonics Research Center&Shenzhen Key Laboratory of Micro-Scale Optical Information TechnologyShenzhen UniversityShenzhen 518060China HMN Technologies co. Ltd.Tianjin 300467China

Photoaco.stic Doppler flow measurement based on co.tinuous wave laser excitation owns the merit of clearly presenting the Doppler power *** this technique to dual wavelengths can gain the spectral information of the flow sample extra to the flow speed *** experimental system with two laser diodes respectively operated at 405 nm and 660 nm wavelengths is built and the flow measurement with black and red dyed polystyrene beads is *** measured Doppler power spectra can vividly reflect the flow speed,the flow direction,as well as the bead *** it is straightforward to further apply the same principle to multiple wavelengths,we can expect this type of spectrosco.ic photoaco.stic Doppler flow measurement will be developed in the near future which will be very useful for studying the metabolism of the slowly moving red blood cell inside microvessels.

关键词： Photoaco.stic Doppler Doppler power spectra multispectral photoaco.stics flow measurement co.tinuous wave laser