|
| 弯曲纳米银线的合成、表征、机理及催化活性研究 |
| Synthesis, Characterization, Mechanism and Catalytic Activity of Curly Silver Nanowires |
| Received:April 12, 2019 |
| DOI： |
| 中文关键词: 银纳米线 对硝基苯酚 水相合成 加氢还原 |
| 英文关键词: silver nanowires p-nitrophenol aqueous synthesis hydrogenation reduction |
| 基金项目:国家自然科学基金(21761016)、云南省中青年学术与技术带头人后备人才项目(2017HB060)、云南省应用基础研究(2017FB142) 云南省重点新产品开发专项(2016BA007)、云南省重大研发专项(2018ZE001)、云南省院所开发专项(2016DC033) |
| Author Name | Affiliation | E-mail | | MENG Xianwei | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China
Sichuan Engineering Technical College, Deyang 618000, Sichuan, China | mxw@ipm.com.cn | | YANG Hongwei | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | | | YUAN Ximin | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | | | LI Yuxiu | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | | | LI Yao | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | | | CHEN Li | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | | | CHEN Jialin | State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106, China | |
|
| Hits: 2670 |
| Download times: 1793 |
| 中文摘要: |
| 在未额外添加表面活性剂或聚合物的室温条件下,于水相中合成了弯曲纳米银线，采用SEM、XRD和UV-Vis等手段对产物进行表征。表征结果表明，弯曲银纳米线的直径在95~175 nm 之间；机理探讨认为，弯曲纳米银线可能的生成机理包含2个关键步骤，即首先形成不规则的片状银，然后再通过溴离子的刻蚀作用最终形成弯曲的纳米银线；活性试验表明，该纳米银线在对硝基苯酚(4-硝基苯酚)的加氢还原反应中呈现出高的催化活性。 |
| 英文摘要: |
| An aqueous synthesis of curly silver nanowires (AgNWs) at room temperature without any surfactants or polymers was reported for the first time. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and ultraviolet-visible (UV-Vis) spectroscopy were characterized the bending and twisting AgNWs. The results showed that the diameter of the curly silver nanowire was between 95 and 175 nm. The possible growth mechanism of the curly AgNWs contained two key steps: First, silver flakes with irregular shape were formed first and then silver flakes were etched into curly AgNWs with the addition of bromide ions. Moreover, activity test indicated that the products exhibited high catalytic activity in the reduction of p-nitrophenol (4-nitrophenol, 4-NP). |
|
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|