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Chinese Chemical Letters 2024年第6期35卷 502-506页

作者： Chaozheng He Pei Shi Donglin Pang Zhanying Zhang Long Lin Yingchun Ding Department of Chemistry and Chemical Engineering Liaocheng UniversityLiaocheng 252059China Henan Key Laboratory of Materials on Deep-Earth Engineering School of Materials Science and EngineeringHenan Polytechnic UniversityJiaozuo 454000China School of Materials Science and Engineering Henan Polytechnic UniversityJiaozuo 454000China Department of Basic Medicine North Sichuan Medical CollegeNanchong 637000China

Single atom catalysts(SACs)have been in the forefront of catalysts research because of their high efficiency and low cost and provide new ideas for development of renewable energy conversion and storage technologies.However,the relationship between the intrinsic properties of materials such as lattice thermal conductivity and catalysis remains to be explored.In this work,the lattice thermal conductivity of BN and graphene was calculated by Sheng BTE.In addition,the adsorption properties of 3d-TM(TM=V,Cr,Mn,Fe,Co,Ni)on BN and graphene were investigated using first-principles methods,and it was found that Ni atom can form relatively stable SACs compared to other TMs.The molecular dynamics(MD)simulation and migration barrier of Ni loaded on BN and graphene were calculated.Our study found that graphene has higher thermal conductivity and is easier to form SACs than BN,but the SACs formed on BN surface have higher thermodynamic stability.

关键词： First-principles calculation Thermal conductivity Single atom catalysts graphene BN

graphene and graphene-based materials in axonal repair of spinal cord injury

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Neural Regeneration Research 2022年第10期17卷 2117-2125页

作者： Shi-Xin Wang Yu-Bao Lu Xue-Xi Wang Yan Wang Yu-Jun Song Xiao Wang Munkhtuya Nyamgerelt School of Basic Medical Sciences Lanzhou UniversityLanzhouGansu ProvinceChina The Second Clinical Medical College Lanzhou UniversityLanzhouGansu ProvinceChina Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province LanzhouGansu ProvinceChina

graphene and graphene-based materials have the ability to induce stem cells to differentiate into neurons,which is necessary to overcome the current problems faced in the clinical treatment of spinal cord injury.This review summarizes the advantages of graphene and graphene-based materials(in particular,composite materials)in axonal repair after spinal cord injury.These materials have good histocompatibility,and mechanical and adsorption properties that can be targeted to improve the environment of axonal regeneration.They also have good conductivity,which allows them to make full use of electrical nerve signal stimulation in spinal cord tissue to promote axonal regeneration.Furthermore,they can be used as carriers of seed cells,trophic factors,and drugs in nerve tissue engineering scaffolds to provide a basis for constructing a local microenvironment after spinal cord injury.However,to achieve clinical adoption of graphene and graphene-based materials for the repair of spinal cord injury,further research is needed to reduce their toxicity.

关键词： axonal regeneration graphene graphene oxide nerve axon regeneration reduced graphene oxide spinal cord contusions spinal cord injury spinal cord trauma

graphene superlubricity:A review

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摩擦:英文版 2023年第11期11卷 1953-1973页

作者： Xiangyu GE Zhiyuan CHAI Qiuyu SHI Yanfei LIU Wenzhong WANG School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081China State Grid Smart Grid Research Institute Co. Ltd.Beijing 102209China

Superlubricity has drawn substantial attention worldwide while the energy crisis is challenging human beings.Hence,numerous endeavors are bestowed to design materials for superlubricity achievement at multiple scales.Developments in graphene-family materials,such as graphene,graphene oxide,and graphene quantum dots,initiated an epoch for atomically thin solid lubricants.Nevertheless,superlubricity achieved with graphene-family materials still needs fundamental understanding for being applied in engineering in the future.In this review,the fundamental mechanisms for superlubricity that are achieved with graphene-family materials are outlined in detail,and the problems concerning graphene superlubricity and future progress in superlubricity are proposed.This review concludes the fundamental mechanisms for graphene superlubricity and offers guidance for utilizing graphene-family materials in superlubricity systems.

关键词： superlubricity graphene graphene-family materials two-dimensional(2D)materials friction

graphene-Oxide Mediated Chemodivergent Ring-Opening of Cyclobutanols

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Chinese Journal of Chemistry 2023年第11期41卷 1333-1340页

作者： Andrea Brunetti Angela Pintus Lorenzo Lombardi Alessandro Kovtun Federico Mascietti Francesco Bruno Enrico Ravera Manuela Melucci Giulio Bertuzzi Marco Bandini Dipartimento di Chimica“Giacomo Ciamician” Alma Mater StudiorumUniversitàdi BolognaVia Selmi 240126BolognaItaly Istituto per la Sintesi e la Fotoreattività(ISOF)–CNR Via Gobetti10140129BolognaItaly Magnetic Resonance Center(CERM) University of FlorenceVia L.Sacconi 650019 Sesto FiorentinoItaly Department of Chemistry“Ugo Schiff” University of FlorenceVia della Lastruccia 350019 Sesto FiorentinoItaly Center for Chemical Catalysis–C3 Alma Mater StudiorumUniversitàdi Bolognavia Selmi 240126BolognaItaly

The chemodivergent ring-opening of cyclobutanols is described under the carbocatalytic assistance of graphene oxide(GO).The protocol enables the synthesis of diversely functionalized dienes or indenes(26 examples)based on the amount of GO employed.Spectroscopic(XPS and ssNMR)as well as experimental investigations revealed a direct involvement of theπ-domains of GO in tuning the stability of carbocationic intermediates during the reaction.

关键词： Carbocatalysis C-C activation graphene Carbocations Methodology and reactions

graphene and MXene-based porous structures for multifunctional electromagnetic interference shielding

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Nano Research 2023年第1期16卷 1387-1413页

作者： Xi Shen Jang-Kyo Kim Department of Aeronautical and Aviation Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China School of Mechanical and Manufacturing Engineering University of New South WalesSydneyNSW 2052Australia The Research Institute for Sports Science and Technology The Hong Kong Polytechnic UniversityHung HomHong Kong 999077China

Electrically conductive porous structures are ideal candidates for lightweight and absorption-dominant electromagnetic interference(EMI)shielding.In this review,we summarize the recent progress in developing porous composites and structures from emerging two-dimensional(2D)graphene and MXene nanosheets for EMI shielding applications.Important properties contributing to various energy loss mechanisms are probed with a critical discussion on their correlations with EMI shielding performance.Technological approaches to constructing bulk porous structures,such as 2D porous films,three-dimensional(3D)aerogels and foams,and hydrogels,are compared to highlight important material and processing parameters required to achieve optimal microstructures.A comprehensive comparison of EMI shielding performance is also carried out to elucidate the effects of different assembly techniques and microstructures.Distinctive multifunctional applications in adaptive EMI shielding,mechanical force attenuation,thermal management,and wearable devices are introduced,underlining the importance of unique compositions and microstructures of porous composites.The process–structure–property relationships established in this review would offer valuable guidance and insights into the design of lightweight EMI shielding materials.

关键词： porous composite graphene MXene electrical conductivity electromagnetic interference(EMI)shielding

graphene-and Multi-Walled Carbon Nanotubes-Coated Tapered Plastic Optical Fiber for Detection of Lard Adulteration in Olive Oil

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Photonic Sensors 2022年第4期12卷 1-10页

作者： Ika PUSPITA Ninik IRAWATI Kartika Anoraga MADURANI Fredy KURNIAWAN Sekartedjo KOENTJORO Agus Muhamad HATTA Department of Engineering Physics Faculty of Industrial Technology and System EngineeringInstitut Teknologi Sepuluh NopemberSurabaya 60111Indonesia Department of Physics National Taiwan UniversityTaipei 10617China Department of Chemistry Faculty of Science and Data AnalyticsInstitut Teknologi Sepuluh NopemberSurabaya 60111Indonesia

A rapid and high-performance sensor for lard adulterant in edible oil was developed using the tapered plastic optical fiber(POF)coated with graphene and multi-walled carbon nanotubes.The coating material was deposited onto a tapered POF with a taper waist diameter and a taper length of 0.45 mm and 1 cm,respectively.The addition of the coating material was used to increase the sensitivity and selectivity coefficient of the tapered POF toward the lard substance.The sensing mechanism is based on a simultaneous interaction of lard substance and an evanescent wave of tapered POF with the coating layers.The results showed that graphene coating on the tapered POF increased the selectivity coefficient of the tapered POF towards lard substance from 33.54 to 324.19,and it gave a sensitivity of 0.427 dBm/%.In comparison,multi-walled carbon nanotubes coating increased the selectivity coefficient to 71.65 and increased its sensitivity to 1.189 dBm/%.Thus,the proposed configuration of the tapered POF with the coating material offered a simple configuration for a rapid,high sensitivity and selectivity detection of lard adulterant in edible oils.

关键词： Lard adulteration tapered optical fiber sensor graphene carbon nanotubes food safety

graphene-based electrocatalysts for advanced energy conversion

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Green Energy & Environment 2023年第5期8卷 1265-1278页

作者： Pingping Yang Xin Yang Wenzhu Liu Ruike Guo Zufu Yao Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol Fiber MaterialHuaihua UniversityHuaihua418000China Hunan Provincial Key Laboratory of Dong Medicine Hunan University of MedicineHuaihua418000China

graphene-based nanocatalysts have appealed much interest as advanced electrocatalysts toward energy conversion reactions due to their outstanding electrocatalytic performance from the distinctive chemical composites and strong synergistic effects.Aiming to better understand the role of graphene played in enhancing the catalytic performance and offer guidance for fabricating more efficient graphenebased electrocatalysts,we herein summarize the remarkable achievements of graphene-based electrocatalysts for energy-conversion-related reactions.Started by discussing applications of graphene in the electrocatalytic reactions,we have manifested the crucial role of graphene played in promoting the catalytic performance.Subsequently,many representative graphene-based catalyst hybrids for electrocatalytic reactions are also overviewed,showing many effective strategies for the fabrication of more efficient graphene-related materials for the practical application.Finally,the perspective insights and challenging issues are also concluded to provide directions for the future development.

关键词： graphene Electrocatalysis Energy conversion Activity

graphene-based nanomaterials for cancer therapy and anti-infections

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Bioactive Materials 2022年第8期7卷 335-349页

作者： Yan Wang Juan Li Xiaobin Li Jinping Shi Zhaotan Jiang Can Yang Zhang School of Physics Beijing Institute of TechnologyBeijing100081China Advanced Research Institute for Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Institute of Biopharmaceutical and Health Engineering Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China

graphene-based nanomaterials(GBNMs)has been thoroughly investigated and extensively used in many biomedical fields,especially cancer therapy and bacteria-induced infectious diseases treatment,which have attracted more and more attentions due to the improved therapeutic efficacy and reduced reverse effect.GBNMs,as classic two-dimensional(2D)nanomaterials,have unique structure and excellent physicochemical properties,exhibiting tremendous potential in cancer therapy and bacteria-induced infectious diseases treatment.In this review,we first introduced the recent advances in development of GBNMs and GBNMs-based treatment strategies for cancer,including photothermal therapy(PTT),photodynamic therapy(PDT)and multiple combination therapies.Then,we surveyed the research progress of applications of GBNMs in anti-infection such as antimicrobial resistance,wound healing and removal of biofilm.The mechanism of GBNMs was also expounded.Finally,we concluded and discussed the advantages,challenges/limitations and perspective about the development of GBNMs and GBNMs-based therapies.Collectively,we think that GBNMs could be potential in clinic to promote the improvement of cancer therapy and infections treatment.

关键词： graphene Phototherapy Cancer therapy Anti-infection 2D materials

graphene-integrated waveguides:Properties,preparation,and applications

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Nano Research 2022年第11期15卷 9704-9726页

作者： Kaili Chang Zenghui Li Yuzong Gu Kaihui Liu Ke Chen Center for the Physics of Low-Dimensional Materials School of Physics and ElectronicsHenan UniversityKaifeng 475004China State Key Laboratory for Mesoscopic Physics School of PhysicsPeking UniversityBeijing 100871China

graphene-integrated waveguides(GIWGs)have shown immense potential for applications in next-generation datacom technology due to graphene’s compactness and its functional complementarity with traditional optical waveguides.However,the fabrication techniques of GIWGs lack scalability for commercial applications.Here we discuss the recent developments of GIWGs in two-dimensional optoelectronics by focusing on their properties,wave–matter interaction mechanisms,and fabrication techniques.We highlight representative advances on the advantages and potential applications of GIWGs in telecom networks.Finally,we outline major challenges and development trends to bridge the gap between proof-of-concept demonstrations and practical applications.

关键词： graphene waveguide integration process optoelectronics two-dimensional materials

基于氧等离子体辐照处理的缺陷工程策略调控石墨烯性能

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Science China Materials 2024年第6期67卷 2023-2031页

作者：裴家云宋爱生陈锦淙金炜烨杨帆赵海燕马天宝 Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

从石墨烯的制备到实际应用的整个过程中,缺陷的存在或引入不可避免.因此,阐明缺陷如何影响石墨烯的性能至关重要.本研究通过实验研究和理论计算的方法研究了石墨烯的结构变化、缺陷演变及性能调控.结果表明,当处于sp3缺陷状态时,石墨烯... 详细信息

从石墨烯的制备到实际应用的整个过程中,缺陷的存在或引入不可避免.因此,阐明缺陷如何影响石墨烯的性能至关重要.本研究通过实验研究和理论计算的方法研究了石墨烯的结构变化、缺陷演变及性能调控.结果表明,当处于sp3缺陷状态时,石墨烯能够较好的保持其原始的机械性能,而随着缺陷数量迅速增加,石墨烯的机械性能显著下降,整体结构最终被破坏.此外,氧等离子体辐照引入的空位缺陷的散射效应增加了电子散射的概率,但掺杂效应有利于石墨烯的电传输;同时,石墨烯面内导电性与氧等离子体处理引起的石墨烯表面起伏程度呈负相关.本工作为基于缺陷工程的石墨烯和其它二维材料的改性研究提供了指导方向.

关键词： defect engineering graphene oxygen plasma me-chanical and electrical properties