新疆时时彩-新疆时时彩开奖直播结果历史记录Touou
近期模措,我院青年教师卞婷健睡擂刑、肖蓓蓓焦怖隧卫黄钡,研究生孙标等的研究成果在《Journal of Alloys and Compounds》(IF=3.779)上发表率箱啃。
发布时间刨掳盗些芦: 2019-02-25 浏览次数荷涩案老: 13

    近期那女丘腊皆,我院青年教师卞婷乌萌睦斯闪、肖蓓蓓桅芜博洁,研究生孙标等的研究成果Ion-Templated Fabrication of Pt-Cu Alloy Octahedra with Controlled Compositions for Electrochemical Detection of H2O2在《Journal of Alloys and Compounds》(IF=3.779)上发表入磁随文撤。

    论文简介如下衡嵌:

        Introducing Pt-based bimetallic nanocrystals into biosensors as a modifying agent has aroused immense interests to develop advanced non-enzymatic sensors for detecting H2O2. In this study, Pt-Cu alloy octahedra with controlled compositions are prepared through a facile method serving as a modifying agent in biosensors for H2O2 detection. The formation of Pt-Cu octahedra is achieved by simultaneous reduction of H2PtCl6 and CuCl2 by using N, N-dimethylformamide without addition of any other capping agents. A key to the synthesis of Pt-Cu octahedra is the introduction of Cl- ions, which can act as a dynamic template to facilitate the preferential overgrowth and accelerate the overall reduction kinetics. Compare to commercial Pt/C and spherical Pt-Cu nanoparticles, the Pt-Cu octahedra modified biosensors show substantially enhanced activity towards H2O2 detection due to the unique synergetic effect between Pt and Cu and surface structure. Specifically, the electrode modified by Pt55Cu45 octahedra achieves the highest sensitivity and best selectivity in neutral solution with a detection limit of 0.17 μM.






  

  

  

  

  

  

  

  

  

  

  

  

  

  


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