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xiejf專家顧問(wèn) (文學(xué)泰斗)
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[資源]
Science最新研究進(jìn)展:溶液中Pt3Fe納米棒的實(shí)時(shí)成相
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美國(guó)Lawrence Berkeley國(guó)家實(shí)驗(yàn)室報(bào)導(dǎo)了溶液中Pt3Fe納米棒的實(shí)時(shí)成相,直觀地研究了Pt3Fe納米棒的生長(zhǎng)機(jī)理為形狀引導(dǎo)的顆粒接觸,繼而發(fā)生相互作用的增強(qiáng)和導(dǎo)向。這個(gè)成果對(duì)納米結(jié)構(gòu)的設(shè)計(jì)有著重要的作用。 摘要: The growth of colloidal nanocrystal architectures by nanoparticle attachment is frequently reported as an alternative to the conventional growth by monomer attachment. However, the mechanism whereby nanoparticle attachment proceeds microscopically remains unclear. We report real-time transmission electron microscopy (TEM) imaging of the solution growth of Pt3Fe nanorods from nanoparticle building blocks. Observations revealed growth of winding polycrystalline nanoparticle chains by shape-directed nanoparticle attachment followed by straightening and orientation and shape corrections to yield single-crystal nanorods. Tracking nanoparticle growth trajectories allowed us to distinguish the force fields exerted by single nanoparticles and nanoparticle chains. Such quantification of nanoparticle interaction and understanding the growth pathways are important for the design of hierarchical nanomaterials and controlling nanocrystal self-assembly for functional devices. . [ 來(lái)自科研家族 材料家族 ] |
材料科學(xué)最新前沿?zé)狳c(diǎn) | nano physics&chem | 材料類(lèi)精品資源 | 科研 |
經(jīng)典資源貼 | 新技術(shù) | 化學(xué)教材 | science&nature |
對(duì)大學(xué)生有用的資料 | 信息 | 新材料 |
至尊木蟲(chóng) (正式寫(xiě)手)
鐵桿木蟲(chóng) (小有名氣)


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