Control of the shell structure for the core-shell metal nano-particles using the supercritical CO2 fluid.

使用超临界 CO2 流体控制核壳金属纳米颗粒的壳结构。

• 批准号: 23560924
• 负责人: MURAKAMI Yoshinori
• 金额: $ 3.41万
• 依托单位: Hachinohe National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560924/
• 关键词: レーザアブレーション; ナノ微粒子; 超臨界二酸化炭素; 表面被覆; 金属ナノ微粒子; コアシェル構造; 多環芳香族化合物; 銀ナノ微粒子; 炭素被覆; 熱分解; トルエン; ピレン

Laser ablation experiments toward the silver plate immersed in toluene, which were solvented with supercritical CO2, were performed. It was found that silver nanoparticles were formed by the laser ablation processes and it was also confirmed that silver nanoparticles were covered with carbon film. To investigate further the origin of the carbon film formed by the laser ablation into toluene, GC-MS analysis were carried out to the liquid after the laser irradiation. Pyrene was observed as one of the major products. And thus it was concluded that pyrene formed by the laser pyrolysis of toluene was the origin of the carbon film. It was also found that pyrene was also formed using the other solvents after the laser irradiation to those solvents. Laser ablation of Cu plate under the supercritical CO2 condition was also performed and the graphene formation was convinced by the Raman signal analysis of the deposited film on Cu plate.

用超临界CO2对浸泡在甲苯中的银片进行了激光烧蚀实验。研究发现，激光烧蚀过程中形成了银纳米颗粒，并证实了银纳米颗粒表面覆盖了碳膜。为了进一步探讨激光烧蚀甲苯所形成的碳膜的来源，对激光辐照后的液体进行了GC-MS分析。观察到，芘是主要产物之一。由此得出结论：甲苯激光热解生成的Py是碳膜的来源。研究还发现，激光照射其他溶剂后，这些溶剂中也有芘的生成。在超临界CO2条件下对铜板进行了激光烧蚀实验，对铜板上沉积的薄膜进行了拉曼信号分析，证实了石墨烯的生成。

项目成果

レーザ照射による誘起されたルミノール化学発光の観測

激光照射诱导鲁米诺化学发光的观察

• 发表时间: 2013
• 作者: Yamamura M.;Koga H.;Mawatari Y.,Kage Y.;村上能規
• 通讯作者: 村上能規

多環芳香族化合物の燃焼反応とOHラジカル生成経路の探索

多环芳香族化合物的燃烧反应及OH自由基生成途径的探索

• 发表时间: 2013
• 作者: 村上能規;小口達夫
• 通讯作者: 小口達夫

レーザアブレーションによるナノ微粒子生成と溶媒熱分解による表面被覆

通过激光烧蚀生成纳米颗粒并通过溶剂热解进行表面涂层

• 发表时间: 2012
• 作者: 村上能規

レーザアブレーションによる銀ナノ微粒子生成における界面活性剤の効果

表面活性剂对激光烧蚀生成银纳米颗粒的影响

• 发表时间: 2011
• 作者: Chua Ming Jing;村上能規
• 通讯作者: 村上能規

レーザアブレーションによる銀ナノ微粒子生成における界面活性剤の添加効果

添加表面活性剂对激光烧蚀生成银纳米颗粒的影响

• 发表时间: 2011
• 作者: Chua Ming Jing;村上能規
• 通讯作者: 村上能規