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您的检索式：作者名="Yunchen CUI"
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| 1 | Composition Optimization and Microstructure Design in MOFs-Derived Magnetic Carbon-Based Microwave Absorbers:A Review显示文摘Magnetic carbon-based composites are the most attractive candidates for electromagnetic(EM)absorption because they can terminate the propagation of surplus EM waves in space by interacting with both electric and magnetic branches.Metal-organic frameworks(MOFs)have demonstrated their great potential as sacrificing precursors of magnetic metals/carbon composites,because they provide a good platform to achieve high dispersion of magnetic nanoparticles in carbon matrix.Nevertheless,the chemical composition and microstructure of these composites are always highly dependent on their precursors and cannot promise an optimal EM state favorable for EM absorption,which more or less discount the superiority of MOFs-derived strategy.It is hence of great importance to develop some accompanied methods that can regulate EM properties of MOFs-derived magnetic carbon-based composites e ectively.This review comprehensively introduces recent advancements on EM absorption enhancement in MOFs-derived magnetic carbon-based composites and some available strategies therein.In addition,some challenges and prospects are also proposed to indicate the pending issues on performance breakthrough and mechanism exploration in the related field. | Honghong Zhao Fengyuan Wang Liru Cui Xianzhu Xu Xijiang Han Yunchen Du | 2021 | Nano-Micro Letters2021，13，12： | 6 |
| 2 | Polymer-bubbling for one-step synthesis of three-dimensional cobalt/carbon foams against electromagnetic pollution显示文摘Constructing three-dimensional(3D)foam-like structure in magnetic metal/carbon composites is regarded as a promising pathway to reinforce their electromagnetic(EM)functions.Herein,a nitrateassisted polymer-bubbling strategy is reported for the synthesis of Co/carbon foams,which is simply accomplished by direct pyrolyzing the mixture of polyvinylpyrrolidone(PVP)and cobalt nitrate hexahydrate(Co(NO_(3))_(2)·6 H_(2) O).Co(NO_(3))_(2)·6H_(2)O not only plays as the source of Co nanoparticles,but also accounts for the formation of 3D microstructure through releasing gas.By manipulating the weight ratio of Co(NO_(3))_(2)·6H_(2)O to PVP,the chemical composition,microstructure,and EM properties of these composites can be easily regulated.When the weight ratio reaches 1.5,the resultant composite displays good microwave absorption performance,whose reflection loss intensity and effective absorption bandwidth are superior to those of many common Co/C composites.EM analysis reveals that such architecture is greatly helpful to establish cross-linked conductive networks in the wax matrix,resulting in powerful dielectric loss under low absorber loading.Meanwhile,3D microstructure is also beneficial for multiple reflections that equal to extend the transmission path of incident EM waves.Simple synthesis strategy and desirable properties of these magnetic carbon foams may render them as the low-cost substitute of 3D graphene for the application against EM pollution. | Fengyuan Wang Ping Xu Ning Shi Liru Cui Yahui Wang Dawei Liu Honghong Zhao Xijiang Han Yunchen Du | 2021 | Journal of Materials Science & Technology2021，，34： | 1 |
| 3 | A short note on the horizontal and vertical movements of a whale shark, Rhincodon typus, tracked by satellite telemetry in the South China Sea显示文摘Whale sharks,a global migratory species,are often reported entangled in fishing nets in coastal areas of Chi-na.The effectiveness of conservation measures has been constrained by very limited knowledge on their move-ments and preferred habitats in the coastal areas of China.For the first time,we tracked the movements of 2 whale sharks by satellite telemetry in China' Mainland.The tracking results of 1 whale shark revealed that it travelled in the South China Sea in a south-eastern direction,parallel to the eastern coast of Vietnam.Total dis-tance travelled was 1018 km,in approximately 74 days,with a mean speed of 14 km per day.It appeared to head towards the cool upwelling zones in southern Vietnam at the time of the tag’s detachment.In our study,it was observed that this whale shark was a surface dweller and spent approximately 45%of its time above 10 m water depth and 90%of its time above 50 m depth.It also tended to stay in water temperatures between 27 and 30°C,and was rarely recorded in water below 20°C.This preliminary study indicates the importance of shal-low waters as the foraging habitat for whale sharks,and has implications for their management and conserva-tion. | Yamin WANG Wei LI Xiaoguang ZENG Yunchen CUI | 2012 | Integrative Zoology2012，7，1： | 1 |
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