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| 基于单晶多孔钯纳米花的无酶型葡萄糖传感器研究 |
| Study of the Non-enzymatic Glucose Sensor Based on Single-crystalline Porous Palladium Nanoflowers |
| Received:August 24, 2015 |
| DOI： |
| 中文关键词: 钯纳米花 钯纳米立方体 钯纳米八面体 无酶型葡萄糖传感器 |
| 英文关键词: palladium nanoflowers palladium nanocubes palladium nanooctahedrons non-enzymatic glucose sensor |
| 基金项目:国家自然科学基金(No. 21275064、No. 21075051)。 |
| Author Name | Affiliation | E-mail | | WANG Qiang | Department of Materials Science, Materials Science and Engineering, Jilin University, Changchun 130012, China | | | WangQiyu | Department of Materials Science, Materials Science and Engineering, Jilin University, Changchun 130012, China | | | QI Kun | Department of Materials Science, Materials Science and Engineering, Jilin University, Changchun 130012, China | | | GUAN Weiming | Kunming Institute of Precious Metals, Kunming 650106, China | | | CUI Xiaoqiang | Department of Materials Science, Materials Science and Engineering, Jilin University, Changchun 130012, China | xqcui@jlu.edu.cn |
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| 中文摘要: |
| 研究了单晶多孔钯纳米花的制备以及它作为无酶型葡萄糖传感器的催化性能。通过XRD、TEM以及HRTEM表征手段证实合成的产物为以{100}为主导晶面的单晶多孔钯纳米花，并合成了与钯纳米花尺寸相近的钯纳米立方体和钯纳米八面体，比较了3种纳米粒子对葡萄糖的催化能力。实验结果表明，以{100}为主导晶面的单晶多孔钯纳米花和钯纳米立方体对葡萄糖的催化活性优于以{111}为主导晶面的钯纳米八面体。单晶多孔的钯纳米花是3者中催化活性最强，具有较好的稳定性以及抗干扰能力，检测范围为0.05~6.5 mmol/L (R2= 0.9984)，最低检测限为1 μmol/L (S/N=3)，灵敏度为1.1721 μA/(mmol/L cm2)。 |
| 英文摘要: |
| The preparation method of single-crystalline porous Palladium nanoflowers and electrocatalytic performance for non-enzymatic glucose biosensor was studied. As-prepared nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM), which confirm that the Palladium nanoflowers are single- crystalline nature and enclosed by {100} facets. Palladium nanocubes and Palladium nanooctahedrons with the same size as Palladium nanoflower were prepared, electrocatalytic performance for non- enzymatic glucose biosensor of three nanoparticles were compared. Experimental results show that Palladium nanoflowers and nanocubes enclosed by {100} have better catalytic performance than Palladium nanooctahedrons enclosed by {111} for non-enzymatic glucose biosensor. Single-crystalline porous Palladium nanoflowers have the best catalytic performance, good stability and resistance to interferences. The detection range is 0.05~6.5 mmol/L (R2=0.9984), with a detection limit of 1 μmol/L (signal-to-noise ratio of 3), and a sensitivity of 1.1721 μA/(mmol/L cm2). |
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