青岛科技大学  English 
陈英杰
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教师拼音名称:chenyingjie

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毕业院校:中国科学院海洋研究所

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材料学

曾获荣誉:

2018-10-09 我最喜爱的老师

2019-09-13 校级优秀班主任

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N, S, P-Codoped Graphene-Supported Ag-MnFe2O4 Heterojunction Nanoparticles as Bifunctional Oxygen Electrocatalyst with High Efficiency

关键字:REDUCED GRAPHENE OXIDE; CARBON; PERFORMANCE; NI; ARRAYS; MOF; SUPERCAPACITOR; NANOPARTICLES; VERSATILE; DESIGN

摘要:The rational design and controllable synthesis of metal-carbon composites as low cost and efficient catalysts have become the focus of research on non-enzymatic glucose detection. Herein, nickel sulfide nanocrystals encapsulated/dispersed by bamboo-like nitrogen-doped carbon nanotubes (Ni3S2@NCNT) are facilely synthesized by pyrolysis and sulfuration of Ni2+-dicyandiamide complex. During the pyrolysis, nickel nanoparticles are formed to promote the growth of NCNTs, while the NCNTs can disperse Ni nanoparticles to prevent them from oxidation and aggregations. The synergistic effects between Ni3S2 active sites and NCNTs also facilitate electronic transfer and enhance catalytic performances. Thus, Ni3S2@NCNT demonstrates excellent performances on glucose oxidation with unprecedented sensitivity (1447.64 mu A mM(-1) cm(-2)), low detection limit (0.14 mu M), and wide linear range (0.46 mu M-3.19 mM). Furthermore, as-fabricated sensors with superior performances indicate promising application prospects on non-enzymatic glucose detection in artificial sweat. This study will provide a general strategy for the controllable fabrication of catalysts with similar structures for other applications.

卷号:585

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