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Construction of dual heterogeneous interface between zigzag-like Mo–MXene nanofibers and small CoNi@NC nanoparticles for electromagnetic wave absorption

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Journal of Advanced Ceramics 2023年第8期12卷 1562-1576页

作者： Xiaojun Zeng Xiao Jiang Ya Ning Feiyue Hu bingbing fan School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403China School of Materials Science&Engineering Zhengzhou UniversityZhengzhou 450001China Jiangsu Key Laboratory of Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China

Two-dimensional(2D)transition metal carbides(MXene)possess attractive conductivity and abundant surface functional groups,providing immense potential in the field of electromagnetic wave(EMW)***,high conductivity and spontaneous aggregation of MXene suffer from limited EMW *** by dielectric–magnetic synergy effect,the strategy of decorating MXene with magnetic elements is expected to solve this *** this work,zigzag-like Mo_(2)TiC_(2)–MXene nanofibers(Mo-based MXene(Mo–MXene)NFs)with cross-linked networks are fabricated by hydrofluoric acid(HF)etching and potassium hydroxide(KOH)shearing ***,Co-metal–organic framework(MOF)and derived CoNi layered double hydroxide(LDH)ultrathin nanosheets are grown inside Mo–MXene NFs,and the N-doped carbon matrix anchored by CoNi alloy nanoparticles formed by pyrolysis is firmly embedded in the Mo–MXene NFs *** from synergistic effect of highly dispersed small CoNi alloy nanoparticles,a three-dimensional(3D)conductive network assembled by zigzag-like Mo–MXene NFs,numerous N-doped hollow carbon vesicles,and abundant dual heterogeneous interface,the designed Mo–MXene/CoNi–NC heterostructure provides robust EMW absorption ability with a reflection loss(RL)value of−68.45 dB at the thickness(d)of 4.38 *** robust EMW absorption performance can be attributed to excellent dielectric loss,magnetic loss,impedance matching(Z),and multiple scattering and reflection triggered by the unique 3D network *** work puts up great potential in developing advanced MXene-based EMW absorption devices.

关键词： zigzag-like Mo-MXene nanofiber(NF)network dual heterogeneous interface CoNi alloy electromagnetic wave(EMW)absorption

Ultrabroad band microwave absorption from hierarchical MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)Tx hybrids via annealing treatment

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Journal of Advanced Ceramics 2022年第9期11卷 1466-1478页

作者： Feiyue HU fan ZHANG Xiaohan WANG Yaya LI Hailong WANG Rui ZHANG Hongxia LI bingbing fan School of Material Science and Engineering Zhengzhou UniversityZhengzhou 450001China School of Materials Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023China Sinosteel Luoyang Institute of Refractories Research Co. Ltd.Luoyang 471039China

Two-dimensional(2D)transition metal carbide MXene-based materials hold great potentials applied for new electromagnetic wave(EMW)***,the application of MXenes in the field of electromagnetic wave absorption(EMA)is limited by the disadvantages of poor impedance matching,single loss mechanism,and easy *** this work,MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)hybrids were prepared by the annealing-treated Mo_(2)TiC_(2)T_(x)MXene and uniform MoO_(3)and TiO_(2)oxides in-situ grew on Mo_(2)TiC_(2)T_(x)*** the annealing temperature of 300℃,the minimum reflection loss(RLmin)value of MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)reaches-30.76 dB(2.3 mm)at 10.18 GHz with a significantly broadening effective absorption bandwidth(EAB)of 8.6 GHz(1.8 mm).The in-situ generated oxides creating numerous defects and heterogeneous interfaces enhance dipolar and interfacial polarizations and optimize the impedance matching of Mo_(2)TiC_(2)T_(x).Considering the excellent overall performance,the MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)hybrids can be a promising candidate for EMA.

关键词： MoO_(3)/TiO_(2)/Mo_(2)TiC_(2)T_(x)composites Mo_(2)TiC_(2)T_(x)MXene electromagnetic wave absorption(EMA) impedance matching interfacial polarization dielectric loss

Perylene Bisimides as efficient electron transport layers in planar heterojunction perovskite solar cells

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Science China Chemistry 2016年第12期59卷 1658-1662页

作者： bingbing fan Dong Meng Dehua Peng Shiwei Lin Zhaohui Wang Yanming Sun School of Chemistry and Environment Beihang University Heeger Beijing Research and Development Center Beihang University Beijing National Laboratory for Molecular Science Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources College of Materials and Chemical Engineering Hainan University

Two perylene bisimides based non-fullerene small molecules, H-DIPBI and B-DIPBI, are applied into inverted planar heterojunction perovskite solar cells. The power conversion efficiency up to 11.6% has been achieved for device with B-DIPBI,indicating that non-fullerene acceptor can function as the electron transport layer to replace PCBM in perovskite solar cells.

关键词： perylene bisimide perovskite solar cell non-fullerene

Mechanism of total glucosides from Chishao(Radix Paeoniae Rubra)on proliferation and apoptosis of hepatocellular carcinoma cells via phosphatase and tensin homolog deleted on chromosome ten/phosphatidylinositol 3-kinase/protein kinase B signaling pathway

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Journal of Traditional Chinese Medicine 2021年第5期41卷 677-683页

作者： fan bingbing LI Tianjiao MENG Xiansheng WANG Shuai BAO Yongrui WANG Fei College of Pharmacy Liaoning University of Traditional Chinese MedicineDalian 116600China College of Graduate Studies Liaoning University of Traditional Chinese MedicineShenyang 110847China

OBJECTIVE:To investigate the possible molecular mechanism of total glycosides of Chishao(Radix Paeoniae Rubra)(TG-RPR)on proliferation and apoptosis of hepatocellular carcinoma ***:The proliferation of TG-RPR on Hep G2 cells was detected using the 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)*** apoptosis of Hep G2 cells was measured by annexin V-FITC/double *** phosphatase and tensin homolog deleted on chromosome ten(PTEN)/phosphatidylinositol 3-kinase(PI3 K)/protein kinase B(Akt)signaling pathway was evaluated by Western Blot and reverse transcription-polymerase chain reaction(RT-PCR).RESULTS:TG-RPR can up-regulation the expression of pro-apoptotic factors such as PTEN and BCL2-Associated X(Bax),down-regulation the expression of anti-apoptotic factors including B-cell lymphoma-2(Bcl-2),PI3 K,and ***:TG-RPR significantly inhibits the proliferation of Hep G2 cells in a dose-dependent manner and promotes *** results demonstrated TG-RPR has significant inhibitory effect on Hep G2 *** results identify a critical role of TG-RPR in proliferation and apoptosis of Hep G2 cells via modulating PTEN/PI3 K/Akt signaling ***-RPR may offer a promise as a potential pharmaceutical therapy for hepatocellular carcinoma.

关键词： carcinoma,hepatocellular glycosides PTEN phosphohydrolase phosphatidylinositol 3-kinase proto-oncogene proteins c-akt Chishao(Radix Paeoniae Rubra)

In-situ grown Ni Co bimetal anchored on porous straw-derived biochar composites with boosted microwave absorption properties

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International Journal of Minerals,Metallurgy and Materials 2023年第3期30卷 515-524页

作者： Yuanyuan Zhou Zhongyi Bai Xiangyang Yang Wei Liu bingbing fan Zhikai Yan Xiaoqin Guo Henan Key Laboratory of Aeronautical Materials and Application Technology School of Material Science and EngineeringZhengzhou University of AeronauticsZhengzhou 450046China School of Chemical&Environmental Engineering China University of Mining&Technology(Beijing)Beijing 100083China School of Material Science and Engineering Zhengzhou UniversityZhengzhou 450001China

With the gradually increasing protection awareness about electromagnetic pollution,the demand for absorbing materials with renewability and environmental friendliness has attracted widespread *** this work,composites consisting of straw-derived biochar combined with NiCo alloy were successfully fabricated through high-temperature carbonization and subsequent hydrothermal *** electromagnetic parameters of the porous biocarbon/NiCo composites can be effectively modified by altering their NiCo content,and their improved absorbing performance can be attributed to the synergy effect of magnetic-dielectric *** exceptional reflection loss of-27.0 dB at 2.2 mm thickness and an effective absorption bandwidth of 4.4 GHz(11.7-16.1 GHz)were *** results revealed that the porous biocarbon/NiCo composites could be used as a new generation absorbing material because of their low density,light weight,excellent conductivity,and strong absorption.

关键词： straw-derived biochar microwave absorption interfacial polarization magnetic loss bimetallic NiCo impedance matching

Growth of magnetic metals on carbon microspheres with synergetic dissipation abilities to broaden microwave absorption

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Journal of Materials Science & Technology 2022年第12期107卷 100-110页

作者： Biao Zhao Yang Li Qingwen Zeng bingbing fan Lei Wang Rui Zhang Renchao Che Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsFudan UniversityShanghai 200438China Department of Materials Science Fudan UniversityShanghai 200438China Henan Key Laboratory of Aeronautical Materials and Application Technology School of Material Science and EngineeringZhengzhou University of AeronauticsZhengzhouHenan 450046China School of Material Science and Engineering Zhengzhou UniversityZhengzhouHenan 450001China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China

Microwave absorption(MA) materials have been captured extensive attentions due to the serious electromagnetic(EM) pollution. Numerous interests focus on the MA performances of core-shell structural composites with magnetic constituents as cores and dielectric constituents as shells, which inevitably suppressed the magnetic coupling causing the decrease of magnetic loss to some extent. Herein, the coreshell structural carbon(C) microsphere/magnetic metal composites were fabricated through the combination of an electrostatic assembly approach and subsequent in-situ reduction reaction. The complex permittivity and permeability of core-shell C@magnetic metal composite system can be effective adjusted by the constituent and microstructure of shells. Thanks to the distinct magnetic coupling from the subtle designed structures and the promotion of the magnetic-dielectric synergy, the C@magnetic metal composite exhibited enhanced MA properties. The optimal reflection loss(RL) of C@Ni composite was-54.1 dB with a thickness of 3.4 mm, meanwhile the effective absorbing band could reach over 5.5 GHz at only a1.8 mm thickness. Broad absorption bandwidth with RL below-10 d B could achieve 6.0 GHz and 6.7 GHz for C@Co and C@Ni Co composites with a thin 2.1 mm thickness, respectively. Our exciting findings might lead a guide on the novel structure design for the functional core-shell structural composites used for microwave absorption.

关键词： Microwave absorption Core-shell structure C@magnetic metal composite Interfacial polarization Magnetic coupling

From binary to ternary and back to binary:Transition of electromagnetic wave shielding to absorption among MAB phase Ni_(3)ZnB_(2)and corresponding binary borides Nin+1Bn(n=1,3)

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Journal of Advanced Ceramics 2023年第11期12卷 2101-2111页

作者： Chengwen Wu fan Zhang Qin Zhi Bo Song Yongqiang Chen Hailong Wang Rui Zhang Hongxia Li bingbing fan School of Material Science and Engineering Zhengzhou UniversityZhengzhou 450001China Henan Vocational College of Information and Statistics Zhengzhou 450008China School of Material Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023China State Key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang 471039China

Due to chemical inertness of nickel and boron,the preparation of nickel borides and corresponding layered ternary transition metal borides Ni_(3)ZnB_(2)(MAB phase)has always required high-temperature and/or high-pressure ***,an innovative and efficient approach to preparing Ni_(3)ZnB_(2)at only 600℃and without applied pressure is presented in this *** is discovered that by simply adjusting the temperature,a phase transition from Ni_(3)ZnB_(2)to Ni4B3 with a layered structure could be *** transition between the binary-component and the ternary-component brings about significant variation in electromagnetic wave(EMW)shielding/absorption performance of prepared *** instance,Ni2B has good EMW shielding performance(42.54 dB in X band)and Ni_(3)ZnB_(2)is of weak EMW shielding(13.43 dB in X band);Ni_(3)ZnB_(2)has poor EMW absorption performance(−5 dB)while Ni4B3 has excellent EMW absorption performance(−45.19 dB)at a thickness of 2.7 mm with effective absorption bandwidth(10.4 GHz).

关键词： nickel borides Ni_(3)ZnB_(2) electromagnetic wave(EMW)shielding properties electromagnetic wave absorbing properties

Ternary layered boride MoAlB:A novel thermo-regulation microwave absorbing ceramic material

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Journal of Advanced Ceramics 2024年第5期13卷 699-710页

作者： Zhangjue Wang fan Zhang Nannan Wang Wei Li Yongqiang Chen Hailong Wang Rui Zhang Yanqiu Zhu bingbing fan School of Material Science and Engineering Zhengzhou UniversityZhengzhou 450001China Henan Academy of Sciences Zhengzhou 450046China State Key Laboratory of Featured Metal Materials and Life Cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China Department of Materials and Earth Sciences Technical University of DarmstadtDarmstadt 64287Germany School of Material Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023China Department of Engineering Faculty of EnvironmentScience and EconomyUniversity of ExeterExeter EX44QFUK

In the context of the fifth-generation(5G)smart era,the demand for electromagnetic wave(EMW)-absorbing materials has become increasingly prominent,so it is necessary to explore promising candidate *** work focuses on the exploration of the material absorbing properties of a MoAlB MAB(MAB represents a promising group of alternatives,where M stands for a transition metal,A typically denotes Al,and B is boron)phase ***,the first-principles calculations were performed to reveal the unique crystal and layered structure of the MoAlB ceramics and to predict their potential for use as an EMW absorption ***,a series of MoAlB ceramics were synthesized at temperatures ranging from 800 to 1300℃,and the influence of temperature on the phase compositions and microstructures of the obtained MoAlB ceramics was characterized and ***,the practical EMW absorption performance of the prepared MoAlB ceramics was evaluated via a combination of experiments and radar cross-sectional *** MoAlB sample synthesized at 900℃ exhibits superior EMW absorption performance,achieving an impressive minimum reflection loss(RL)of−50.33 *** unique layered structure and good electrical conductivity of the MoAlB samples are the main reasons for their enhanced wave absorption performance,which provides interfacial polarization and multiple dielectric loss ***,this study not only contributes to the understanding of the preparation of MoAlB materials but also provides potential guidance for their utilization in the realm of electromagnetic wave absorption.

关键词： MoAlB electronic band structure electromagnetic wave(EMW)absorption layered ternary boride density of states

Layer-controlled 2D Sn_(4)P_(3) via space-confined topochemical transformation for enhanced lithium cycling performance

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Nano Research 2024年第11期17卷 9697-9703页

作者： Jianan Gu Yongzheng Zhang bingbing fan Yanlong Lv Yanhong Wang Ruohan Yu Meicheng Li State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of New Energy North China Electric Power University Beijing 100096 China State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 China Wuhan University of Technology Sanya 572000 China

Topochemical transformation has emerged as a promising method for fabricating two-dimensional (2D) materials with precise control over their composition and morphology. However, the large-scale synthesis of ultrathin 2D materials with controllable thickness remains a tremendous challenge. Herein, we adopt an efficient topochemical synthesis strategy, employing a confined reaction space to fabricate ultrathin 2D Sn_(4)P_(3) nanosheets in large-scale. By carefully adjusting the rolling number during the processing of Sn/Al foils, we have successfully fabricated Sn_(4)P_(3) nanosheets with varied layer thicknesses, achieving a remarkable minimum thickness of two layers (~ 2.2 nm). Remarkably, the bilayer Sn_(4)P_(3) nanosheets display an exceptional initial capacity of 1088 mAh·g^(−1), nearing the theoretical value of 1230 mAh·g^(−1). Furthermore, we reveal their high-rate property as well as outstanding cyclic stability, maintaining capacity without fading more than 3000 cycles. By precisely controlling the layer thickness and ensuring nanoscale uniformity, we enhance the lithium cycling performance of Sn_(4)P_(3), marking a significant advancement in developing high-performance energy storage systems.

关键词： topochemical transformation 2D materials confined reaction layer-controlled Sn_(4)P_(3)nanosheets lithium storage