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| 火试金分金卷对甲醇的电催化性能 |
| The Electrocatalytic Activities for Methanol of Gold Cornets Prepared by Fire Assay |
| Received:August 14, 2017 |
| DOI： |
| 中文关键词: 火试金分金卷 电催化性能 循环伏安 甲醇 |
| 英文关键词: fire assay cornets electrocatalytic activity cyclic voltammetry methanol |
| 基金项目:山东省质监系统科技计划项目(2016KY05)。 |
| Author Name | Affiliation | E-mail | | LI Guihua | National Gold & Diamond Testing Center, Jinan 250014, China
Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | guihual12@163.com | | SHAN Guangqi | National Gold & Diamond Testing Center, Jinan 250014, China
Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | CAO Cong | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | LI Ting | National Gold & Diamond Testing Center, Jinan 250014, China
Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | LOU Laichang | National Gold & Diamond Testing Center, Jinan 250014, China
Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | QU Dejian | JIER Machine-Tool Group Co.Ltd., Jinan 250022, China | |
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| 中文摘要: |
| 用火试金法制备了银金质量比分别为2.1、2.3、2.5的金银合粒，分金后得到分金卷样品Au2.1，Au2.3和Au2.5，用扫描电镜对样品表面和横截面形貌进行了观察。结果表明，三种样品均为三维多孔结构，其中样品Au2.5的孔隙率多，比表面积最大。以循环伏安法测试样品对甲醇的电催化性能，发现Au2.5样品对甲醇的氧化峰起始电位较Au2.1和Au2.3的低，氧化峰电流密度约为Au2.1和Au2.3的4倍，说明其对甲醇电催化性能最好。 |
| 英文摘要: |
| The gold and silver particles which the mass ratio of silver and silver were 2.1, 2.3 and 2.5 times respectively, were prepared by fire assay. After parting of gold, the fire assay cornets samples were named as Au2.1, Au2.3 and Au2.5. Scanning electron microscopy was used to observe the surface and cross section of the samples, the results showed that the structure of three samples is three-dimensional porous structure, in which the Au2.5 sample has the largest porosity and specific surface area. The electrocatalytic activity of methanol was tested by cyclic voltammetry, and it was found that the Au2.5 sample exhibits the best electrocatalytic performance of methanol because of its the lowest onset oxidation potential and the highest oxidation peak current density which is about 4 times that of other samples. |
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