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Mixed‑Dimensional Assembly Strategy to Construct Reduced Graphene Oxide/Carbon Foams Heterostructures for Microwave Absorption,Anti‑Corrosion and Thermal Insulation

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Nano-Micro Letters 2024年第11期16卷 1-18页

作者： Beibei Zhan Yunpeng Qu Xiaosi Qi Junfei Ding Jiao‑jing Shao Xiu Gong Jing‑Liang Yang Yanli Chen Qiong Peng Wei Zhong hualiang lv College of Physics Guizhou Province Key Laboratory for Photoelectrics Technology and ApplicationGuizhou UniversityGuiyang City 550025People’s Republic of China College of Materials and Metallurgy Guizhou UniversityGuiyang City 550025People’s Republic of China National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology Nanjing UniversityNanjing 210093People’s Republic of China Department of Materials Science and Laboratory of Advanced Materials Fudan UniversityShanghai 200433People’s Republic of China

Considering the serious electromagnetic wave(EMW)pollution problems and complex application condition,there is a pressing need to amalgamate multiple functionalities within a single ***,the effective integration of diverse functions into designed EMW absorption materials still faces the huge ***,reduced graphene oxide/carbon foams(RGO/CFs)with two-dimensional/three-dimensional(2D/3D)van der Waals(vdWs)heterostructures were meticulously engineered and synthesized utilizing an efficient methodology involving freeze-drying,immersing absorption,secondary freeze-drying,followed by carbonization *** to their excellent linkage effect of amplified dielectric loss and optimized impedance matching,the designed 2D/3D RGO/CFs vdWs heterostructures demonstrated commendable EMW absorption performances,achieving a broad absorption bandwidth of 6.2 GHz and a reflection loss of-50.58 dB with the low matching ***,the obtained 2D/3D RGO/CFs vdWs heterostructures also displayed the significant radar stealth properties,good corrosion resistance performances as well as outstanding thermal insulation capabilities,displaying the great potential in complex and variable ***,this work not only demonstrated a straightforward method for fabricating 2D/3D vdWs heterostructures,but also outlined a powerful mixeddimensional assembly strategy for engineering multifunctional foams for electromagnetic protection,aerospace and other complex conditions.

关键词： Multifunctionality Reduced graphene oxide/carbon foams 2D/3D van der Waals heterostructures Electromagnetic wave absorption Thermal insulation

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Low-dimensional cobalt doped carbon composite towards wideband electromagnetic dissipation

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Nano Research 2023年第1期16卷 70-79页

作者： Xiaodi Zhou Biao Zhao hualiang lv School of Microelectronics Fudan UniversityShanghai 200433China Willian G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOH 43210USA

Composites composed of a carbon matrix decorated with a metal or metal oxide derived from zeolitic imidazolate frameworks(ZIFs)have been widely applied as suitable electromagnetic wave absorbers due to their high porosity and controllable ***,achieving ideal absorption performance remains a challenge owing to the inadequate conductivity and high density of the metal ***,a temperature-controlling treatment was employed for the bimetal ZIFs,and the corresponding derivatives exhibited an excellent dissipation ability with a minimum reflection loss value of−54.3 dB and an effective bandwidth of 7.0 GHz at a thickness of 2.4 mm,which resulted from the strong dipole polarization ***,after successfully controlling the Zn/Co ratio,the attenuation capability was greatly enhanced at a thickness of 1.4 mm,with bandwidths of 13.0–18.0 ***,this work provides an ameliorated strategy for microwave absorption performance of carbon-based materials.

关键词： microwave absorption bi-meta based absorber single-atom metal organic frameworks(MOFs)derived composite dielectric relaxation

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Rational construction of graphene oxide with MOF- derived porous NiFe@C nanocubes for high-performance microwave attenuation

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Nano Research 2016年第12期9卷 3671-3682页

作者： Zhihong Yang hualiang lv Renbing WU College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 China Department of Materials Science Fudan University Shanghai 200433 China

Exploring lightweight microwave attenuation materials with strong and tunable wideband microwave absorption is highly desirable but remains a significant challenge. Herein, three-dimensional （3D） porous hybrid composites consisting of NiFe nanoparticles embedded within carbon nanocubes decorated on graphene oxide （GO） sheets （NiFe@C nanocubes@GO） as high-performance microwave attenuation materials have been rationally synthesized. The 3D porous hybrid composites are fabricated by a simple method, which involves one-step pyrolysis of NiFe Prussian blue analogue nanocubes in the presence of GO sheets. Benefiting from the unique structural features that exhibit good magnetic and dielectric losses as well as a proper impedance match, the resulting NiFe@C nanocubes@GO composites show excellent microwave attenuation ability. With a minimum reflection loss （RL） of -51 dB at 7.7 GHz at a thickness of 2.8 mm and maximum percentage bandwidth of 38.6% for RL 〈 -10 dB at a thickness of 2.2 mm, the NiFe@C nanocubes@GO composites are superior to the previously reported state-of-the-art carbon-based microwave attenuation materials.

关键词： hybrid dielectric loss magnetic loss microwave attenuation

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Achieving excellent bandwidth absorption by a mirror growth process of magnetic porous polyhedron structures

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Nano Research 2016年第6期9卷 1813-1822页

作者： hualiang lv Haiqian Zhang Jun Zhao Guangbin Ji Youwei Du College of Materials Science and Technology Nonjing University of Aeronautics and Astronautics Nonjing 211100 Chino School of Chemical and Biomedical Engineering Nanyang Technological University Singapore 637459 Singapore School of Materials Sciences and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore National Laboratory of Solid State Microstructures Nanjing University Nanjing 210093 China

A symmetrical Fe2O3/BaCO3 hexagonal cone structure having a height of 10 um and an edge length of -4um is reported, obtained using a common solvothermal process and a mirror growth process. Focused ion beam and high-resolution transmission electron microscopy techniques revealed that α-Fe2O3 was the single crystal feature present. Ba ions contributed to the formation of symmetrical structures exhibited in the final composites. Subsequently, porous magnetic symmetric hexagonal cone structures were used to study the observed intense electromagnetic wave interference. Electromagnetic absorption performance studies at 2-18 GHz indicated stronger attenuation electromagnetic wave ability as compared to other shapes such as spindles, spheres, cubes, and rods. The maximum absorption frequency bandwidth was at 7.2 GHz with a coating thickness d = 1.5 mm. Special structures and the absence of BaCO3 likely played a vital role in the excellent electromagnetic absorption properties described in this research.

关键词： symmetrical hexagonalcone structure Fe203/BaC03 single crystal porous magnetic absorber effective frequencybandwidth

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Silicon-coated fibrous network of carbon nanotube/iron towards stable and wideband electromagnetic wave absorption

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Journal of Materials Science & Technology 2022年第26期121卷 199-206页

作者： Xiaodi Zhou He Han Yuchao Wang Cheng Zhang hualiang lv Zhichao Lou Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037China Willian G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOH 43210USA School of Science Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang 471023China

Materials that can absorb electromagnetic(EM)wave have garnered increased attention in recent years due to their potential to mitigate the ever increasing environmental pollution by EM *** to recent advances in micro/nanofabrication,a variety of magnetic metal-based EM absorbers have been *** design and synthesis of EM absorbers that exhibit efficient and wide-band absorption at small thicknesses,however,remains *** we report the design of fibrous nanostructures consisting of magnetic iron(Fe)nanoparticles and carbon nanotubes(CNTs),which exhibits a wide-band EM absorption(3.8 GHz)while maintain the thickness at 1.2 *** our work,we created a novel core-shell structure by immersing the highly fibrous CNT-Fe structure into solid-state silicon(SiO)***,the SiO-coated CNT-Fe structures exhibit good stability against air-induced oxidation and acid corrosion while maintaining high EM ***,the results reported in this study present new avenues to absorb EM from ambient *** believe that our work elevates the utility of EM absorbers to real-world applications such as anti-acid and oxidation ability.

关键词： Fibrous network Silicon-coated nanostructure Electromagnetic pollution Magnetic-dielectric loss

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GABPB1-AS1 acts as a tumor suppressor and inhibits non-small cell lung cancer progression by targeting miRNA-566/F-box protein 47

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Oncology Research 2021年第6期29卷 401-409页

作者： hualiang lv CHANGCHUN LAI WENQU ZHAO YIBO SONG Department of Pulmonary and Critical Care Medicine Maoming People’s HospitalMaomingChina Department of Clinical Laboratory Maoming People’s HospitalMaomingChina Department of Pulmonary and Critical Care Medicine Nanfang Hospital Affiliated to Southern Medical UniversityGuangzhouChina

It has been certiﬁed that GABPB1-AS1 is aberrantly expressed and plays as a vital role in some kinds of ***,its expression pattern and functions in non-small cell lung cancer(NSCLC)are still largely *** study aims to assess GABPB1-AS1 expression and biological roles in *** expression of GABPB1-AS1 was detected in NSCLC specimens and adjacent normal ***8 and Transwell assays were performed to evaluate the effects of GABPB1-AS1 on NSCLC cell proliferation,migration and *** tools and luciferase reporter assays were applied to predict and verify GABPB1-AS1’s direct *** results revealed that GABPB1-AS1 is sharply reduced in NSCLC specimens and cell ***8 assays indicated that overexpression of GABPB1-AS1 dramatically reduced NSCLC cell growth,and Transwell assays proved that NSCLC cell migration and invasion were distinctly inhibited by *** of the mechanism uncovered that miRNA-566(miR-566)/F-box protein 47(FBXO47)is directly targeted by GABPB1-AS1 in *** study demonstrated that GABPB1-AS1 inhibited NSCLC cell proliferation,migration and invasion by targeting miR-566/FBXO47.

关键词： GABPB1-AS1 NSCLC Progression miRNA-566 FBXO47

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Hierarchical composite of biomass derived magnetic carbon framework and phytic acid doped polyanilne with prominent electromagnetic wave absorption capacity

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Journal of Materials Science & Technology 2021年第9期68卷 61-69页

作者： Tianqi Hou Zirui Jia Ailing Feng Zehua Zhou Xuehua Liu hualiang lv Guanglei Wu Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China Institute of Physics&Optoelectronics Technology Baoji University of Arts and SciencesBaoji721016China William G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOH.USA

To solve the electromagnetic pollution,herein,a CoFe_(2)O_(4)/C/PANI composite was developed by a green route,which was constructed with spinel of metal oxide,graphitized carbon and conductive polymer *** from the designable interfaces and increased dipoles,the microwave dielectric response capability can be boosted significantly and resulted in the enhanced microwave absorbing *** revealed by the reflection loss curve,the minimum reflection loss(RLmin) reached-51.81 dB at 12.4 GHz under a matched thickness of 2.57 *** 2.5 mm,the effective absorbing band covered 8.88 GHz,suggesting the desirable wideband *** our case,the method of utilization of a novel green way to fabricate multiple-component EM absorber can be a promising candidate for high-performance EM absorber.

关键词： Electromagnetic wave absorption CoFe_(2)O_(4)/C/PANI Interface polarization Effective absorption bandwidth

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Hierarchical porous hollow graphitized carbon@MoS_(2)with wideband EM dissipation capability

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Journal of Materials Science & Technology 2021年第24期83卷 239-247页

作者： Lieji Yang Tianwei Deng Zirui Jia Xiaodi Zhou hualiang lv Yutao Zhu Juncen Liu Zhihong Yang College of Material Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing210016China William G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOHUSA Fu Foundation School of Engineering and Applied Science Columbia UniversityNew York10027USA State Key Laboratory of Biofibers and Eco-textiles College of Chemistry and Chemical EngineeringQingdao UniversityQingdao266071China

Core-shell materials are promising broadband electromagnetic(EM)absorption materials since the highly component manipulation performance,interfacial effect ***,a well-defined core-shell shaped structure constructed by 2-dimensional Mo S_(2)nanosheets-coated porous hollow carbon has been successfully designed with controlled pore-sizes of the core,adjustable shell content,and *** effectively optimizing the parameters for these factors,the as-prepared hierarchical porous hollow C@Mo S_(2)sample enables an ultra-width EM absorption ability(covering 11.4-18.0 GHz)at a thickness of only 2.0 *** detailed contributions of each component and structure on the excellent EM absorption capability have been *** encouraging results indicate that the development of core-shell composites with multiple controllable physical factors is of great significance for the future ultra-wideband electromagnetic absorbers.

关键词： Porous hollow carbon@MoS_(2) Dielectric dissipation Pore-controllable core Wideband electromagnetic absorption

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One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption

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Nano-Micro Letters 2022年第10期14卷 260-272页

作者： Bintong Yang Jiefeng Fang Chunyang Xu Hui Cao Ruixuan Zhang Biao Zhao Mengqiu Huang Xiangyu Wang hualiang lv Renchao Che Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsDepartment of Materials ScienceFudan UniversityShanghai 200438People’s Republic of China Willian G.Lowrie Department of Chemical and Biomolecular Engineering The Ohio State UniversityColumbusOH 43210USA Zhejiang Laboratory Joint-Research Center for Computational MaterialsHangzhou 311100People’s Republic of China

Rational designing of one-dimensional(1D)magnetic alloy to facilitate electromagnetic(EM)wave attenuation capability in low-frequency(2-6 GHz)microwave absorption field is highly desired but remains a significant *** this study,a composite EM wave absorber made of a FeCoNi medium-entropy alloy embedded in a 1D carbon matrix framework is rationally designed through an improved electrospinning *** 1D-shaped FeCoNi alloy embedded composite demonstrates the high-density and continuous magnetic network using off-axis electronic holography technique,indicating the excellent magnetic loss ability under an external EM ***,the in-depth analysis shows that many factors,including 1D anisotropy and intrinsic physical features of the magnetic medium-entropy alloy,primarily contribute to the enhanced EM wave absorption ***,the fabricated EM wave absorber shows an increasing effective absorption band of 1.3 GHz in the low-frequency electromagnetic field at an ultrathin thickness of 2 ***,this study opens up a new method for the design and preparation of high-performance 1D magnetic EM absorbers.

关键词： Medium-entropy magnetic alloy One-dimension Off-axis electronic holography technique Improved electrospinning Lower-frequency electromagnetic wave absorption

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Self-Healing Liquid Metal Magnetic Hydrogels for Smart Feedback Sensors and High-Performance Electromagnetic Shielding

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Nano-Micro Letters 2023年第6期15卷 112-125页

作者： Biao Zhao Zhongyi Bai hualiang lv Zhikai Yan Yiqian Du Xiaoqin Guo Jincang Zhang Limin Wu Jiushuai Deng David Wei Zhang Renchao Che School of Microelectronics Fudan UniversityShanghai 2000433People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Key Laboratory of Separation and Processing of Symbiotic‑Associated Mineral Resources in Non‑Ferrous Metal Industry School of Chemical&Environmental EngineeringChina University of Mining&Technology(Beijing)Beijing 100083People’s Republic of China Institute of Optoelectronics Fudan UniversityShanghai 200433People’s Republic of China Henan Key Laboratory of Aeronautical Materials and Application Technology School of Material Science and EngineeringZhengzhou University of AeronauticsZhengzhou 450046HenanPeople’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

Hydrogels exhibit potential applications in smart wearable devices because of their exceptional sensitivity to various external ***,their applications are limited by challenges in terms of issues in biocompatibility,custom shape,and ***,a conductive,stretchable,adaptable,self-healing,and biocompatible liquid metal GaInSn/Ni-based composite hydrogel is developed by incorporating a magnetic liquid metal into the hydrogel framework through crosslinking polyvinyl alcohol(PVA)with sodium *** excellent stretchability and fast self-healing capability of the PVA/liquid metal hydrogel are derived from its abundant hydrogen binding sites and liquid metal ***,owing to the magnetic constituent,the PVA/liquid metal hydrogel can be guided remotely using an external magnetic field to a specific position to repair the broken wires with no need for manual *** composite hydrogel also exhibits sensitive deformation responses and can be used as a strain sensor to monitor various body ***,the multifunctional hydrogel displays absorption-dominated electromagnetic interference(EMI)shielding *** total shielding performance of the composite hydrogel increases to~62.5 dB from~31.8 dB of the pure PVA hydrogel at the thickness of 3.0 *** proposed bioinspired multifunctional magnetic hydrogel demonstrates substantial application potential in the field of intelligent wearable devices.

关键词： EMI shielding Liquid metal Hydrogel Self-healing properties Strain sensor Magnetic patterning

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