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7篇 您的检索式:作者名="Drew Higgins"
    题名 作者 年代 出处 被引量
1Mesoporous Ag nanocubes synthesized via selectively oxidative etching at room temperature for surface- enhanced Raman spectroscopy显示文摘Silver nanocubes enriched with {100} facets have been extensively used for surface-enhanced Raman scattering. Herein, we report a new water-phase synthesis method for weU-defined Ag nanocubes with tunable sizes via a two-step procedure at room temperature. First, irregularly shaped Ag nanoparticles (INPs) were prepared by reducing silver ammonia solution using ethylal. Second, the agglomerated INPs were selectively etched with HNO3 and C1- to yield {100} facet-rich mesoporous Ag nanocubes. The mechanism of Ag-nanocube formation and growth was investigated in detail by elucidating the involved chemical reactions and physical changes at each step during the synthesis. The addition of C1- anions was responsible for facilitating Ag nanoparticle growth by removing surface-adsorbed Ag+ species, thereby eliminating inter-particle repulsive forces. This agglomeration was found crucial for the subsequent selective oxidation of Ag nanoparticles because the protective agent used, polyvinylpyrrolidone (PVP), was the most effective one for adsorption on the surfaces of Ag nanoparticles of size greater than approximately 50 nm. Importantly mesopores were found inside the Ag nanocubes; this can be attributed to the unavoidable imperfect packing during the agglomeration of INPs. The newly prepared Ag nanocubes were further used to enhance the Raman signal of rhodamine 6G, which is capable of reducing the detection limitation to 10-16 mol·L-1.Lin Gan Meijia Yang Xi Ke Guofeng Cui Xudong Chen Shiva Gupta William Kellogg Drew Higgins Gang Wu 2015Nano Research2015,8,7:4
2Efficient organogenesisof an Australian passionfruit hybrid {Passiflora edulis x Passifloraedulis var, flavicarpa) suitable for gene delivery 显示文摘Hall R M Drew R A Higgins C M 2000Aust J Bot2000,48,:1
3Differential patterns of amantadine-resistance in influenza A (H3N2) and (H1N1) isolates in Toronto, Canada显示文摘Rachel R. Higgins A. Eshaghi L. Burton T. Mazzulli S.J. Drews 2008Journal of Clinical Virology2008,,1:1
4Differential patterns of amantadine-resistance in influenza A (H3N2) and (H1N1) isolates in Toronto,Canada显示文摘Higgins R R Eshaghi A Burton L Mazzulli T Drews S J 2009J Clin Virol2009,44,:1
5Development and Simulation of Sulfur‐doped Graphene Supported Platinum with Exemplary Stability and Activity Towards Oxygen Reduction显示文摘Drew Higgins Md Ariful Hoque Min Ho Seo Rongyue Wang Fathy Hassan Ja‐Yeon Choi Mark Pritzker Aiping Yu Jiujun Zhang Zhongwei Chen 2014Mater2014,,27:1
6Highly active Pt-Ru nanowire network catalysts for the methanol oxidation reaction显示文摘Li Bing Drew C Higgins Zhu Shaomin 0,,01:1
7Highly active nitrogen-doped carbon nanotubes for oxy- gen reduction reaction in fuel cell applications 显示文摘CHEN Zhu HIGGINS Drew TAO Haisheng 2009The Journal of Physical Chemistry C2009,113,21:1
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