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.

进行了激光消融实验，对浸入甲苯中的银板进行了用超临界二氧化碳溶剂的溶剂。发现银纳米颗粒是由激光消融过程形成的，还可以证实银纳米颗粒被碳膜覆盖。为了进一步研究激光消融到甲苯中形成的碳膜的起源，在激光照射后，对液体进行了GC-MS分析。将pyrene视为主要产品之一。因此得出的结论是，甲苯的激光载曲解形成的吡啶是碳膜的起源。还发现，激光照射到这些溶剂后也使用其他溶剂形成了pyr。还执行了在超临界二氧化碳条件下的Cu板的激光消融，并通过对Cu板上沉积膜的拉曼信号分析来说服石墨烯的形成。

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

Observation of the plasmon absorption band shifts of the silver nanoparticles formed by the laser ablation in a solution.

观察溶液中激光烧蚀形成的银纳米粒子的等离激元吸收带位移。

• 发表时间: 2014
• 期刊: Proceedings of EOS Conference on Advanced Nanoparticle Generation and Excitation by Lasers in Liquids
• 作者: Yoshinori Murakami;Ming Jing Chua
• 通讯作者: Ming Jing Chua

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