固体超强酸NiO-ZrO2/SO42-的合成及其对葡萄糖电催化氧化的研究
Synthesis of Solid Superacid NiO-ZrO2/SO42- and Its Electrocatalytic Activity for Glucose Oxidation
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摘要: 制备了固体超强酸NiO-ZrO2/SO42-,并研究了其对葡萄糖的电催化氧化性能.利用X射线衍射、扫描电镜以及傅里叶变换红外光谱法对其进行表征,同时研究了其对葡萄糖的电催化氧化性能.结果表明:起主要催化作用的为NiO-ZrO2/SO42-中镍的活性物质,而ZrO2/SO42-上的缺电子金属中心加速了反应过程中电子的转移速率,使得NiO-ZrO2/SO42-相比于NiO/SO42-有更低的峰电位,并且表现出更好的稳定性.Abstract: Solid superacid NiO-ZrO2/SO42- was synthesized and its electrocatalytic activity for glucose oxidation were studied.The nanostructure was characterized by X-ray diffraction,scanning electron microscope and Fourier transform infrared spectroscopy.Its electrocatalytic activity for glucose oxidation was studied.It was shown that the catalytic effect was mainly caused by the active material of Ni in NiO-ZrO2/SO42-,and the electro-deficient metal centers of ZrO2/SO42- accelerated electron transfer rate during reaction process.Therefore,comparing with NiO/SO42-,the NiO-ZrO2/SO42- possessed lower peak potential and more satisfactory stability.
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