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| 1 | 新型碳基磁性复合吸波材料的研究进展显示文摘新型碳基磁性复合吸波材料因兼具质轻和高性能而成为当今电磁波吸收材料的研究主流。碳系吸波材料既有密度小、比表面大、电导率高等优点,也存在无磁性、阻抗匹配水平低等不足,常通过与磁损耗物质复合来构筑多样微结构、多元协同损耗机制的轻质复合材料,实现高强与宽频电磁波吸收。本文在总结国内外碳基复合材料吸波应用的研究基础上,以成分组成、复合方法、微观结构等为主线对比分析了新型石墨烯、碳纳米管、生物质多孔碳及其他碳系磁性复合吸波材料的研究进展,并指出了磁性碳系吸波材料存在的问题及未来发展趋势。 | 曹敏 邓雨希 徐康 郝晓峰 胡嘉裕 杨喜 | 2020 | 复合材料学报2020，37，12： | 11 |
| 2 | 石墨烯基复合吸波材料的最新研究进展显示文摘随着现代通信技术的飞速发展和电子设备的广泛应用,电磁污染问题日益严重,因此开发质量轻、厚度薄、吸收强、有效吸收频带宽的吸波材料显得尤为重要。石墨烯存在无磁性、阻抗匹配水平低等不足,单独使用时无法同时满足吸波材料“薄、轻、宽、强”的要求。文章首先介绍了石墨烯一元吸波材料的发展现状,以及石墨烯与其他损耗型材料复合可以构筑具有多样微观结构、多元协同损耗机制的轻质复合材料,实现高强与宽频电磁波吸收的研究进展,然后论述了石墨烯基二元、三元、四元复合吸波材料的最新研究,展望了石墨烯基复合吸波材料未来的发展方向。 | 杨文栋 刘元军 | 2021 | 丝绸2021，58，7： | 9 |
| 3 | 三维多孔碳基吸波材料的研究进展显示文摘随着电磁波(EMW)污染的日益严重,开发高性能电磁波吸收材料(EWAMs)已成为研究热点.碳基EWAMs具有优异的物理、化学稳定性和高导电性带来的强介电损耗.特别是三维(3D)多孔碳基EWAMs在EMW吸收研究领域长盛不衰.3D多孔结构大大降低了材料的密度,有利于EMW的多次反射和散射,优化了阻抗匹配,因此有望实现“低密度、薄厚度、宽吸收带宽、强吸收”的目标.在此,我们首先阐明了相关的理论基础和评价方法.之后,我们以材料来源为主线索,总结了3D多孔碳基EWAMs的最新研究进展,并突出了其中一些独特而新颖的观点.最后,提出了3D多孔碳基EWAMs的挑战和前景,这将有助于高性能EWAMs的进一步发展. | 韩明睿 杨云霏 刘伟 曾志辉 刘久荣 | 2022 | Science China Materials2022，65，11： | 3 |
| 4 | 石墨烯基气凝胶微球的研究进展显示文摘近年来,石墨烯基气凝胶(GAs)因其低密度、高比表面积及多孔结构等优异特性被广泛研究并在诸多应用领域内表现出极大的潜力。但是传统块状石墨烯基气凝胶往往具有设备依赖性强、材料尺寸大及量化生产性差等缺点,并且忽略了特定应用场景对材料形状尺寸的要求,从而限制了其实际应用与发展。石墨烯基气凝胶微球(GAMs)作为一种具有新颖结构的新型材料,不仅具有GAs的各种优势特征,而且具有灵活可控的尺寸及可量化生产能力等优点,大大丰富了GAMs的应用场景。本文将对GAMs的制备方法及其结构特征,以及在水污染处理、电磁波吸收、电催化等领域研究现状进行详细阐述,指出微球成形组装过程中的内在机制。 | 李天 支丹丹 郭子浩 郭玮琳 张美玲 孟凡彬 | 2021 | 材料工程2021，49，11： | 2 |
| 5 | Heteroatoms-doped carbon nanocages with enhanced dipolar and defective polarization toward light-weight microwave absorbers显示文摘Light-weight and exceptional microwave absorption are two vital characteristics for microwave absorbers in practical applications,but still face challenges.Herein,we employ a sacrificial template strategy to fabricate heteroatoms-doped carbon nanocages(CNs)via chemical vapor deposition,in which heteroatoms are simultaneously doped into the carbon frameworks by bubbling flowing source liquid.Compared with CNs,doped heteroatoms,accompanied with the inevitably defective arrangements in the lattice,not only decrease the electrical conductivity and balance the impedance characteristics,but also introduce structuralchemical defects and trigger dominant dipolar/defect polarization.As a result,both the minimum reflection loss(R_(L,min))and effective absorption bandwidth(EAB)greatly increase at an ultralow filler loading of 5 wt.%owing to internal hollow void and high specific surface area.The R_(L,min) values reach−53.6,−43.2,and−50.1 dB for N-CNs,S-CNs,and N,S-CNs with the corresponding EAB of 4.9,2.5,and 3.1 GHz,respectively.Furthermore,this work provides an effective strategy for the construction of heteroatoms-doped hollow carbon frameworks in large-scale production and the obtained doped carbon nanocages can be used as light-weight and high-performance microwave absorbers. | Hanxiao Xu Guozheng Zhang Yi Wang Yiruo Wang Huanlei Wang Ying Huang Panbo Liu | 2022 | Nano Research2022，15，10： | 2 |
| 6 | 3D石墨烯在热管理及电磁防护应用中的研究进展显示文摘由于石墨烯粉体在复合材料应用中存在易团聚和低利用效率问题,构建3D石墨烯引起了研究人员极大的关注。同时,3D石墨烯本身具有许多优点,例如多孔结构、轻质、高导热、高导电性等,因此,它被广泛应用于热管理和电磁防护领域。为了全面理解3D石墨烯的研究进展,在本文中,我们详细地介绍了各向同性和各向异性3D石墨烯的制备策略。然后,从热界面材料、相变材料、电磁屏蔽材料、微波吸收材料等不同的应用角度全面综述了3D石墨烯的最新研究进展。最后,讨论了3D石墨烯在研究中存在的问题,并展望了未来研究热点和发展趋势。该综述能够为3D石墨烯在5G电子设备散热和电磁防护材料开发方面提供新视野。 | 贾辉 梁磊磊 刘冬 王正 刘卓 谢莉婧 陶则超 孔庆强 陈成猛 | 2021 | 新型炭材料2021，36，5： | 1 |
| 7 | Electrospinning fabrication and ultra-wideband electromagnetic wave absorption properties of CeO_(2)/N-doped carbon nanofibers显示文摘The impedance mismatch of carbon materials is a key factor limiting their widespread use in electromagnetic(EM)wave absorption.In this work,the novel CeO_(2)/nitrogen-doped carbon(CeO_(2)/N-C)nanofiber was prepared to solve the problem by electrospinning and sintering.X-ray diffraction(XRD),Raman,X-ray photoelectron spectroscopy(XPS),and transmission electron microscopy(TEM)analyses demonstrated CeO_(2)was successfully loaded onto the surface of partially graphitized carbon fibers.Different sintering temperatures change the graphitization degree of material,and the oxygen vacancy structure of CeO_(2)and defects from N doping optimize the impedance matching of the material.When the sintering temperature reaches 950℃,CeO_(2)/N-C fiber possesses the minimum reflection loss(RLmin)value of−42.59 dB at 2.5 mm with a filler loading of only 3 wt.%in polyvinylidene difluoride(PVDF).Meanwhile,the CeO_(2)/N-C fiber achieves a surprising wideband(8.48 GHz)at a thickness of 2.5 mm,covering the whole Ku-band as well as 63%of the X-band at the sintering temperature of 650℃.This work provides the research basis for widely commercial applications of carbon-based nanofiber absorbers. | Pei-Yan Zhao Hui-Ya Wang Bo Cai Xiao-Bo Sun Zhi-Ling Hou Jun-Tao Wu Ming Bai Guang-Sheng Wang | 2022 | Nano Research2022，15，9： | 1 |
| 8 | 生物质衍生磁性碳基复合材料的制备及其吸波性能显示文摘为响应国家碳中和、碳达峰目标,解决磁性碳基复合材料制备方法繁杂、能耗高、环境不友好等问题,提出生物质衍生法制备碳基吸波材料的新策略。通过选取香菇为原料,铁盐为金属源,经吸附得到铁/香菇前驱体,后经高温煅烧得到Fe/Fe_(4)N/C复合材料,对材料的相结构、微观形貌、热稳定性、磁特性等理化性质进行表征,分析其吸波性能。研究结果表明:随煅烧温度升高,Fe/Fe_(4)N/C复合材料中磁性纳米粒子结晶性增强,Fe_(4)N含量增加,材料的矫顽力和饱和磁化强度降低;煅烧温度有助于碳组分由无定形碳向微晶石墨转变,碳组分石墨化程度升高;当温度为700℃时,Fe/Fe_(4)N/C复合材料的吸波性能最佳,厚度为4 mm时,有效吸收带宽可达6.64 GHz(4.00~10.64 GHz)。研究结果将为磁性碳基吸波材料的合成提供借鉴,继而促进生物质衍生法的推广应用。 | 强荣 冯帅博 李婉莹 尹琳芝 马茜 陈博文 陈熠 | 2022 | 纺织学报2022，43，1： | 1 |
| 9 | Multifunctional cellular carbon foams derived from chitosan toward self-cleaning, thermal insulation, and highly efficient microwave absorption properties显示文摘To adapt the practical demand,designing and constructing the multifunctional microwave absorbers(MAs)is the key future direction of research and development.However,effective integrating the multiple functions into a single material remains a huge challenge.Herein,cellular carbon foams(CCFs)with different porous structures were elaborately designed and fabricated in high efficiency through a facile continuous freeze-drying and carbonization processes using a sustainable biomass chitosan as the precursor.The obtained results revealed that the thermal treated temperature and g-C_(3)N_(4) amount played a great impact on the carbonization degrees,pore sizes,and morphologies of CCFs,which led to their tunable electromagnetic(EM)parameters,improved conduction loss,and polarization loss abilities.Owing to the special cellular structure,the designed CCFs samples simultaneously displayed the strong absorption capabilities,broad absorption bandwidths,and thin matching thicknesses.Meanwhile,the as-prepared CCFs exhibited the strong hydrophobicity and good thermal insulation,endowing its attractive functions of self-cleaning and thermal insulation.Therefore,our findings not only presented a facile approach to produce different porous structures of CCFs,but also provided an effective strategy to develop multifunctional high-performance MAs on basis of three-dimensional CCFs. | Beibei Zhan Yanling Hao Xiaosi Qi Yunpeng Qu Junfei Ding Jing-liang Yang Xiu Gong Yanli Chen Qiong Peng Wei Zhong | 2024 | Nano Research2024，17，3： | 0 |
| 10 | Flexible regulation engineering of titanium nitride nanofibrous membranes for efficient electromagnetic microwave absorption in wide temperature spectrum显示文摘Simultaneous development of well impedance matching and strong loss capability has become a mainstream method for achieving outstanding electromagnetic microwave absorption(EMWA)performances over wide temperature range.However,it is difficult to pursue both due to the mutual restraint of relationship between impedance matching and loss capability about temperature.Here,we propose a flexible regulation engineering of titanium nitride(TiN)nanofibrous membranes(NMs,TNMs),which could be distributed uniformly in the polydimethylsiloxane(PDMS)matrix and contributed to the formation of abundant local conductive networks,generating the local conductive loss and enhancing the loss ability of EMWs.Moreover,when the TNMs are used as functional units and dispersed in the matrix,the corresponding composites exhibit an outstanding anti-reflection effect on microwaves.As hoped,under the precondition of good impedance matching,local conductive loss and polarization loss together improve the loss capacity at room temperature,and polarization loss can compensate the local conductive loss to acquire effective dielectric response at elevated temperature.Benefiting from the reasonably synergistic loss ability caused by flexible regulation engineering,the corresponding composites exhibit the perfect EMWA performances in a wide temperature range from 298 to 573 K.This work not only elaborates the ponderable insights of independent membrane in the composition-structure-function connection,but also provides a feasible tactic for resolving coexistence of well impedance matching and strong loss capability issues in wide temperature spectrum. | Cuiping Li Lu Zhang Shuai Zhang Qiqi Yu Dan Li Lei Zhang Chunhong Gong Jingwei Zhang | 2024 | Nano Research2024，17，3： | 0 |
| 11 | Three-dimensional macroscopic absorbents: From synergistic effects to advanced multifunctionalities显示文摘The accelerated arriving of 5G era has brought a new round of intelligent transformation which will completely emancipate smart terminal devices.While the subsequent deleterious effect of electromagnetic wave on electronic devices is increasingly serious,driving the growth of next-generation electromagnetic wave absorbents.As a tactful combination of components and structures,three-dimensional(3D)macroscopic absorbents with fascinating synergy afford exceptional electromagnetic wave absorption,and tremendous efforts have been devoted to this investigation.However,in terms of macroscopic absorbents and their synergistic effect,few reviews are proposed to comb the latest achievements and detailed synergy.This review article focuses on the synergistic effect of macro-architectured absorbents mainly including structure-induced synergy,structure-components synergy,and multiple-components induced synergy.And then the potential construction principles and strategies of macroscopic absorbents are combed.Significantly,the key information for structures and components manipulation including nano-micro design and components regulation is further dissected by critically selected cutting-edge 3D macroscopic absorbents.Moreover,a brief summary of multifunctional electromagnetic wave absorbents(EWAs)-based macroscopic structures is presented.Finally,the development prospects and challenges of these materials are discussed. | Shijie Zhang Di Lan Xingliang Chen Yueyuan Gu Junwen Ren Suxuan Du Shichang Cai Xiaomiao Zhao Zhiwei Zhao Guanglei Wu | 2024 | Nano Research2024，17，3： | 0 |
| 12 | 石墨烯基吸波复合材料研究进展显示文摘电子信息技术的迅速发展,致使电磁污染及干扰问题愈加严重,研制具有“宽、薄、轻、强”综合优异性能的吸波材料显得尤为重要。石墨烯材料因其具有轻质、高导电、大比表面积、强介电损耗等优点,但其阻抗匹配性能较差,损耗机制单一。对其进行异质元素掺杂或进行形貌结构设计,可有效改善其阻抗失配问题。本文基于电磁波吸收理论,阐述了不同维度石墨烯基吸波复合材料的研究进展,详细讨论了不同石墨烯基吸波复合材料的性能和吸波机理。还讨论了石墨烯吸波材料领域目前研究工作中存在的一些不足,最后针对石墨烯基吸波材料未来的研究方向和发展前景进行了展望。 | 徐东卫 王瑞琪 陈平 | 2024 | 材料研究学报2024，38，1： | 0 |
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