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  • 2018-11-30 07:44發(fā)布了問答

    納米技術(shù)的原理
     
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    納米材料是指材料的什么尺寸在納米量級
     
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  • 2016-03-19 21:09發(fā)布了問答

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  • 2014-11-13 21:09發(fā)布了問答

    鋰電池有有用釹鐵硼稀土嗎
     
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  • 2013-08-10 00:40發(fā)布了問答

    納米漂用著如何?
    Z近看網(wǎng)上推出的納米漂,永不吸水的,各位高手有用過的給說說,用著怎么樣?
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  • 2011-09-18 01:49發(fā)布了問答

    檸檬酸鈉還原納米金的反應(yīng)機(jī)理
     
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  • 2010-12-19 11:31發(fā)布了問答

    氣相法納米級二氧化鈦P25的參數(shù)及應(yīng)用?
     
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  • 2010-03-06 01:33發(fā)布了問答

    翻譯英文~專業(yè)類的
    Whilegraphene,acarbon-basedtwo-dimensionalnanomaterials,hasreceivedanupsurgeofinterest,[1]self-assemblyofsmallorganicandorganometallicmoleculesinto2Dnanostructurescouldal... While graphene, a carbon-based two-dimensional nanomaterials, has received an upsurge of interest,[1] self-assembly of small organic and organometallic molecules into 2D nanostructures could also be harnessed to develop new classes of functional supramolecular nanomaterials.[2] In principle, quasi-2D lamellae or nanosheets are planar structures having a thickness less than 100 nm and lateral dimensions a few orders of magnitude greater than their thickness. Control over the bilateral intermolecular noncovalent interactions is anticipated to organize small molecules into regular 2D nanostructures, which has been a formidable challenge yet to be achieved. Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.[7] Moreover, some amphiphiles and organogelators were found to self-organize into sheet-like nanostructures in contact with solvents.[8] Despite these advances, templateand surfactant-free synthesis of free-standing, crystalline, and optoelectronically active nanosheets from small molecules remains elusive. 展開
    480人看過