锰基配位聚合物的简易合成、结构及其在葡萄糖电化学传感中的应用 |
Mn-Based Coordination Polymer: Facile Synthesis, Structure and Application in Glucose Electrochemical Sensing |
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摘要: 利用刚性配体6-(3-吡啶基)间苯二甲酸(H2PIAD),制备了一种基于Mn (Ⅱ)的配位聚合物{[Mn (PIAD)(DMF)]·H2O}n(1)。采用后合成Ag纳米颗粒的策略制备了复合材料(Ag@1)以提高葡萄糖传感的电催化活性。在优化的外加电位下,通过计时电流法评估了Ag@1修饰的玻碳电极(GCE)的电催化性能。配位聚合物1为在其表面的Ag纳米颗粒均匀分布提供了固定基质,而且Ag@1传感器可以最大限度地发挥Ag与1结合对葡萄糖氧化的电催化协同效应。结果表明,Ag@1修饰的GCE对葡萄糖的检测性能良好,检出限低(6.36 μmol·L-1),选择性和灵敏度好(166.71 μA·L·mmol-1·cm-2)。 |
关键词: 锰 配位聚合物 Ag纳米颗粒 葡萄糖传感 |
基金项目: 国家自然科学基金(No.22008011)、长安大学中央高校基金(No.300102310109)和陕西省博士后基金(No.2018BSHGZZHQYXMZZ28)资助。 |
Abstract: Utilizing the rigid 6-(3-pyridyl) isophthalic acid (H2PIAD) linker, one Mn(Ⅱ)-based coordination polymer {[Mn(PIAD)(DMF)]·H2O}n (1) was prepared firstly. In order to improve the electrocatalytic activity of glucose sensing, a composite material (Ag@1) was prepared by the strategy of post synthesis of Ag nanoparticles (NPs). The electrocatalytic performance of the glassy carbon electrode (GCE) modified by Ag@1 was evaluated by chronoamperometry method at the optimized application potential, and coordination polymer 1 provided a fixed substrate for the uniform distribution of Ag NPs on its surface. Ag@1 sensor can maximize the electrocatalytic synergistic effect of the combination of Ag and 1 on glucose oxidation. The results reveal that modified GCE by Ag@1 had good performance for the detection of glucose with low detection limit (6.36 μmol·L-1), good selectivity and sensitivity (166.71 μA·L·mmol-1·cm-2). |
Keywords: manganese coordination polymer Ag nanoparticles glucose sensor |
投稿时间:2021-06-08 修订日期:2021-08-31 |
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赵璐,陈彤丹,王晗叶,李晨曦,李江.锰基配位聚合物的简易合成、结构及其在葡萄糖电化学传感中的应用[J].无机化学学报,2021,37(11):2101-2112. |
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Support information: 相关附件: file210266_210266_Supporting_information-提交版.doc |
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