| 微米金刚石负载纳米银的电化学性能 |
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| 引用本文： | 孟为民,黄浩,郭松,马喜龙.微米金刚石负载纳米银的电化学性能[J].金刚石与磨料磨具工程,2017,37(2):20-25. |
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| 作者姓名： | 孟为民 黄浩 郭松 马喜龙 |
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| 作者单位： | 1. 河南黄河旋风股份有限公司, 河南 长葛 461501;2. 燕山大学 材料科学与工程学院, 河北 秦皇岛 066004 |
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| 基金项目： | 中国博士后基金面上项目（2015M582191）；河北省自然科学基金面上项目（E2017203160）；河北省科技计划项目（16211118）；河北省教育厅高等学校科技计划重点项目（ZD2017073）。 |
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| 摘 要： | 微米金刚石拥有优异的物理化学性能。为拓展其应用领域，通过葡萄糖还原银氨溶液中的络合Ag+，在微米金刚石表面负载纳米银颗粒。通过SEM、TEM、EDS和XRD等分析手段表征复合材料的形貌、组成和结构。使用旋转圆盘电极进行实验，研究不同银负载量的微米金刚石的氧还原和析氧特性。结果显示:微米金刚石表面负载质量分数为10%的银时，氧还原反应极限电流密度是4.1mA/cm2，析氧反应的极限电流密度是27.5mA/cm2。
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| 关 键 词： | 氧还原 析氧反应 极限电流密度 |
Electrochemical performance of Ag-coated micron diamond |
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| MENG Weimin,HUANG Hao,GUO Song,MA Xilong.Electrochemical performance of Ag-coated micron diamond[J].Diamond & Abrasives Engineering,2017,37(2):20-25. |
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| Authors: | MENG Weimin HUANG Hao GUO Song MA Xilong |
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| Affiliation: | 1. Henan Huanghe Whirlwind Co., Ltd., Changge 461501, Henan, China;2. College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China |
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| Abstract: | Micro diamond possesses excellent physical and chemical properties.In order to expand its application field,nano silver particles were coated on the surface of micro diamond by glucose reducing complexation Ag+in silver ammonia solution. The morphology,composition and structure of composites were characterized by SEM,TEM,EDS and XRD.The properties of oxygen reduction and oxygen evolution of diamond with different content of coated Ag were studied by using rotating disk electrodes.Resultsshow that the limiting current density of oxygen reduction reaction is 4.1mA/cm2,while the limiting current density of oxygen evolution reaction is 27.5 mA/cm2 when the silver mass fraction is 10%. |
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