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Nano Research 2022年第10期15卷 9392-9401页

作者： Yu Wang fulai zhao Yiyu Feng Wei Feng School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300072China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin 300350China Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Layered double hydroxides(LDHs)are widely used owing to their unique alternating anionic and cationic layered twodimensional(2D)***,studies on the preparation of 2D LDH nanosheets with uniform thickness and their photodetectors are *** this study,two novel ultrathin LDH(Ca-In and Ca-Al LDH)nanosheets are peeled off from precursor bimetallic phosphides through the original precursor *** Ca-In and Ca-Al LDH nanosheets demonstrate a uniform thickness distribution with an average thickness of 3–4 nm,micron-level lateral sizes,and moderate *** to its broad light absorption range,hydrophilicity,and stability,Ca-In and Ca-Al LDH nanosheets are applied for the first time in photoelectrochemical photodetectors,realizing a wide range of light detection from ultraviolet(365 nm)to visible light(635 nm).Moreover,the fabricated photodetectors exhibit excellent cycle stability,and the average photocurrent density shows no reduction after 70 ***,this study provides an effective method to prepare 2D Ca-In and Ca-Al LDH nanosheets with uniform thickness and photoelectric application prospects.

关键词： layered double hydroxides precursor method thickness photoelectrochemical photodetectors calculations

Germanium-based monoelemental and binary two-dimensional materials:Theoretical and experimental investigations and promising applications

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InfoMat 2022年第11期4卷 1-82页

作者： fulai zhao Yiyu Feng Wei Feng School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjinPeople's Republic of China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjinPeople's Republic of China Collaborative Innovation Center of Chemical Science and Engineering TianjinPeoples Republic of China

Two-dimensional(2D)materials based on group IVA elements have attracted extensive attention owing to their rich chemical structures and novel *** comprehensive review focuses on the phases of Ge monoelemental and binary 2D materials including germanene and its derivatives,Ge-IVA binary compounds,Ge-VA binary compounds,and Ge-VIA binary *** latest progress in predictive modeling,fabrication,and fundamental and physical property modulation of their stable 2D configurations are ***,various interesting applications of these Ge-based 2D materials are discussed,particularly field effect transistors,photodetectors,optical devices,catalysts,energy storage devices,solar cells,thermoelectric devices,sensors,biomedical materials,and spintronic ***,this review con-cludes with a few perspectives and an outlook for quickly expanding the appli-cation scope Ge-based 2D materials based on recent developments.

关键词： 2D materials binarycompounds electronicproperties germanene groupIVAelements

Toward high-sulfur-content,high-performance lithium-sulfur batteries:Review of materials and technologies

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Journal of Energy Chemistry 2023年第5期80卷 625-657,I0014页

作者： fulai zhao Jinhong Xue Wei Shao Hui Yu Wei Huang Jian Xiao School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Basic Department Jinci College of Shanxi Medical UniversityTaiyuan 030025ShanxiChina School of Engineering Westlake UniversityHangzhou 310024ZhejiangChina School of Physics and Electronic Information Shangrao Normal UniversityShangrao 334001JiangxiChina

Lithium sulfur batteries(LSBs)are recognized as promising devices for developing next-generation energy storage *** addition,they are attractive rechargeable battery systems for replacing lithium-ion batteries(LIBs)for commercial use owing to their higher theoretical energy density and lower cost compared to those of ***,LSBs are still beset with some persistent issues that prevent them from being used industrially,such as the unavoidable dissolution of lithium polysulfide intermediates during electrochemical reactions and large volume expansion(up to 80%)upon the formation of Li_(2)S,resulting in serious battery life and safety *** the process of solving these problems,it is necessary to maintain a high sulfur content in the cathode materials to ensure that the LSBs have high energy densities and excellent cycle *** this review,the novel preparation methods and cathode materials used for preparing LSBs in recent years are reviewed considering the sulfur content and cycle *** addition,the problems and difficulties in practically applying cathode materials are described,and the development trend is discussed.

关键词： Lithium sulfur batteries Cathode material High sulfur content Cycle performance

Polyphyllin Ⅰ enhances tumor necrosis factor-related apoptosis-inducing ligand-induced inhibition of human osteosarcoma cell growth via downregulating the Wnt/β-catenin pathway

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Journal of Traditional Chinese Medicine 2024年第2期44卷 251-259页

作者： CHANG Junli zhao fulai SUN Xingyuan MA Xiaoping zhao Peng ZHOU Chujie SHI Binhao GU Wenchao WANG Yongjun YANG Yanping Spine Disease Institute Longhua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 200032China Department of Diagnostic and Interventional Radiology University of TsukubaIbaraki 315-0114Japan

OBJECTIVE:To investigate the synergistic effects of polyphyllin Ⅰ(PPⅠ)combined with tumor necrosis factorrelated apoptosis-inducing ligand(TRAIL)on the growth of osteosarcoma cells through downregulating the Wnt/β-catenin signaling ***:Cell viability,apoptosis and cell cycle distribution were examined using cell counting kit-8 and flow cytometry *** morphology of cancer cells was observed with inverted phase contrast *** migration and invasion abilities were examined by xCELLigence real time cell analysis DP system and transwell *** expressions of poly(adenosine diphosphate-ribose)polymerase,C-Myc,Cyclin B1,cyclin-dependent kinases 1,N-cadherin,Vimentin,Active-β-catenin,β-catenin,p-glycogen synthase kinase 3β(GSK-3β)and GSK-3βwere determined by Western blotting ***:PPⅠ sensitized TRAIL-induced decrease of viability,migration and invasion,as well as increase of apoptosis and cell cycle arrest of MG-63 and U-2 OS osteosarcoma *** synergistic effect of PPⅠwith TRAIL in inhibiting the growth of osteosarcoma cells was at least partially realized through the inactivation of Wnt/β-catenin signaling ***:The combination of PPⅠ and TRAIL is potentially a novel treatment strategy of osteosarcoma.

关键词： osteosarcoma tumor necrosis factor-related apoptosis-inducing ligand Wnt signaling pathway beta-catenin polyphyllinⅠ

Three-Dimensional N-Doped Carbon Nanotube/Graphene Composite Aerogel Anode to Develop High-Power Microbial Fuel Cell

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Energy & Environmental Materials 2023年第3期6卷 161-169页

作者： Shixuan Jin Yiyu Feng Jichao Jia fulai zhao Zijie Wu Peng Long Feng Li Huitao Yu Chi Yang Qijing Liu Baocai Zhang Hao Song Wei Feng School of Material Science and Engineering Tianjin UniversityTianjin 300350China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China

Optimizing the structure of electrode materials is one of the most effective strategies for designing high-power microbial fuel cells(MFCs).However,electrode materials currently suffer from a series of shortcomings that limit the output of MFCs,such as high intrinsic resistance,poor electrolyte wettability,and low microbial load ***,a three-dimensional(3D)nitrogen-doped multiwalled carbon nanotube/graphene(N-MWCNT/GA)composite aerogel is synthesized as the anode for *** nitrogen-doped GA,MWCNT/GA,and N-MWCNT/GA,the macroporous hydrophilic N-MWCNT/GA electrode with an average pore size of 4.24μm enables high-density loading of the microbes and facilitates extracellular electron transfer with low intrinsic ***,the hydrophilic surface of N-MWCNT can generate high charge mobility,enabling a high-power output performance of the *** consequence,the MFC system based on N-MWCNT/GA anode exhibits a peak power density and output voltage of 2977.8 mW m^(−2)and 0.654 V,which are 1.83 times and 16.3%higher than those obtained with MWCNT/GA,*** results demonstrate that 3D N-MWCNT/GA anodes can be developed for high-power MFCs in different environments by optimizing their chemical and microstructures.

关键词： anode graphene aerogel microbial fuel cell N-doped carbon nanotube

NIR-Ⅱabsorbing organic nanoagents for photoacoustic imaging and photothermal therapy

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BMEMat(BioMedical Engineering Materials) 2023年第1期1卷 35-51页

作者： Wei Shao fulai zhao Jinhong Xue Lingling Huang School of Engineering Westlake UniversityHangzhouChina Institute of Advanced Technology Westlake Institute for Advanced Study(WIAS)HangzhouChina School of Materials Science and Engineering Tianjin UniversityTianjinChina Jinci College Shanxi Medical UniversityTaiyuanChina Department of Pharmacy The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina

Near-infrared(NIR)absorbing materials hold great potential in biomedical applications,such as fluorescence imaging(FLI),photoacoustic imaging(PAI),photodynamic therapy(PDT),and photothermal therapy(PTT).Generally,these materials can be classified into two main categories based on their absorbing wavelengths:the first NIR(NIR-I)(~650–950 nm)absorbing materials and the second NIR(NIR-Ⅱ)(~1000–1700 nm)absorbing *** to the reduced absorption and scattering of NIR-Ⅱlight in tissue compared to NIR-Ⅰlight,NIR-Ⅱabsorbing materials enable imaging and therapy with improved contrast and deepened penetration,which is in favor of practical *** inorganic materials have been developed for NIR-Ⅱphototheranostics in recent ***,the non-biodegradability and potential toxicity of these materials hinder their further clinical *** organic materials with potential biodegradability as well as tailored optical property are thus more *** this review,we sum-marize the recent advances of NIR-Ⅱabsorbing organic nanoagents(ONAs)based on small molecules(SMs)and conjugated polymers(CPs)for PAI and PTT and show our perspectives on future challenges and development of these materials.

关键词： NIR-Ⅱ organic nanoagents photoacoustic imaging phototheranostics photothermal therapy

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碲化锗场效应晶体管的制备及电学性能

高等学校化学学报 2020年第9期41卷 2032-2037页

作者：张鑫赵付来王宇梁雪静冯奕钰封伟天津大学材料科学与工程学院先进陶瓷与加工技术教育部重点实验室天津300072 郑州大学材料加工与模具教育部重点实验室郑州450002

采用微机械剥离法得到横向尺寸为10μm的碲化锗(GeTe)纳米片.通过电子束曝光和真空溅射镀膜的方法,以钛金合金为接触电极,制备基于二维碲化锗(2D-GeTe)纳米材料的场效应晶体管(FET),并测定了其电学性能.结果表明,剥离所得GeTe纳米材料... 详细信息

采用微机械剥离法得到横向尺寸为10μm的碲化锗(GeTe)纳米片.通过电子束曝光和真空溅射镀膜的方法,以钛金合金为接触电极,制备基于二维碲化锗(2D-GeTe)纳米材料的场效应晶体管(FET),并测定了其电学性能.结果表明,剥离所得GeTe纳米材料具有良好的结晶性,光学带隙为1.98 eV,属于p型半导体;该场效应晶体管展现出了6.4 cm^2·V^‒1·s^‒1的载流子迁移率和670的开关电流比的良好电学性能.

关键词：碲化锗二维材料微机械剥离法场效应晶体管

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硫硒化亚锗光电探测器的制备及光电性能

高等学校化学学报 2021年第8期42卷 2661-2667页

作者：梁雪静赵付来王宇张义超王亚玲冯奕钰封伟天津大学材料科学与工程学院天津300072 天津大学先进陶瓷与加工技术教育部重点实验室天津300072

采用微机械剥离法得到横向尺寸约为12μm的硫硒化亚锗(GeS_(0.5)Se_(0.5))纳米片,以铬/金(Cr/Au)为接触电极,首次制备得到GeS_(0.5)Se_(0.5)光电探测器,并探究了其光电性能.结果表明,剥离所得的纳米片具有良好的结晶质量,硫和硒在纳米... 详细信息

采用微机械剥离法得到横向尺寸约为12μm的硫硒化亚锗(GeS_(0.5)Se_(0.5))纳米片,以铬/金(Cr/Au)为接触电极,首次制备得到GeS_(0.5)Se_(0.5)光电探测器,并探究了其光电性能.结果表明,剥离所得的纳米片具有良好的结晶质量,硫和硒在纳米片中分布均匀,光学带隙为1.3 eV;该光电探测器在515 nm光激发下最大探测能力达到4.52×10^(13)Jones,最高响应度为1.15×10^(4)A/W,外部量子效率为2.79×10^(4)6%,展现出非常高效、快速和稳定的光响应能力.

关键词：硫硒化亚锗合金半导体材料微机械剥离光电探测器

基于多层二硒化钨的高性能场效应晶体管的实验优化和理论模拟

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高等学校化学学报 2022年第6期43卷 166-176页

作者：张义超赵付来王宇王亚玲沈永涛冯奕钰封伟天津大学材料科学与工程学院天津300354 天津大学先进陶瓷与加工技术教育部重点实验室天津300072

采用微机械剥离法制备了基于不同厚度的高质量WSe_(2)纳米片的场效应晶体管(WSe_(2)-FETs),研究了其性能的影响因素.通过调控WSe_(2)纳米片及介电层的厚度、测试温度及退火处理等,结合理论模拟分析,获得了WSe_(2)-FETs的最佳电学性能.最... 详细信息

采用微机械剥离法制备了基于不同厚度的高质量WSe_(2)纳米片的场效应晶体管(WSe_(2)-FETs),研究了其性能的影响因素.通过调控WSe_(2)纳米片及介电层的厚度、测试温度及退火处理等,结合理论模拟分析,获得了WSe_(2)-FETs的最佳电学性能.最终,基于7层WSe_(2)纳米片的场效应晶体管表现出最优异的电学性能,室温下载流子迁移率可达93.17 cm^(2)·V^(‒1)·s^(‒1);在78 K低温下,载流子迁移率高达482.78 cm^(2)·V^(‒1)·s^(‒1).

关键词：微机械剥离法二维材料二维过渡金属硫族化合物载流子迁移率开关比

Study of Image Reconstruction Algorithms for Single Drive Electrode ERT

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Study of Image Reconstruction Algorithms for Single Drive El...