| 超声法制备纳米Pt/MWCNT催化剂及其在CO2传感器上的应用 |
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| 引用本文： | 陈振兴,何翡翡,李改平,晋冠平.超声法制备纳米Pt/MWCNT催化剂及其在CO2传感器上的应用[J].金属功能材料,2012,19(2):55-57. |
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| 作者姓名： | 陈振兴 何翡翡 李改平 晋冠平 |
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| 作者单位： | 合肥工业大学化工学院,安徽合肥,230009 |
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| 基金项目： | 国家大学生创新基金091035948 |
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| 摘 要： | 采用超声合成法制备了纳米铂/多壁碳纳米管复合催化剂(Pt/MWCNT),通过场发射扫描电镜(FE-SEM)、X-射线衍射(XRD)及电化学技术表征了该催化剂的性质.结果表明:纳米Pt均匀地镶嵌在MWCNTs表面,粒径为40±20 nm.该催化剂对CO2的还原呈现良好的催化作用,可用作制备CO2电化学传感器,CO2在纳米铂/多壁碳纳米碳管修饰玻碳电极上的还原电流响应(Pt/MWCNTs/GCE),分别在1～10 ppm和10～100 ppm两个浓度范围内呈良好的线性关系,检测限为1 ppm.
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| 关 键 词： | 纳米Pt/MWCNT 超声 电化学 CO2检测 |
Ultrasonic Preparation of Nano-Pt/MWCNT Catalyst and Application to CO2 Senser |
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| CHEN Zhen-xing
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HE Fei-fei
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LI Gai-ping
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JIN Guan-ping.Ultrasonic Preparation of Nano-Pt/MWCNT Catalyst and Application to CO2 Senser[J].Metallic Functional Materials,2012,19(2):55-57. |
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| Authors: | CHEN Zhen-xing HE Fei-fei LI Gai-ping JIN Guan-ping |
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| Affiliation: | (School of Chemical Engineering,Hefei University of Technology,Hefei 230009,Anhui,China) |
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| Abstract: | Platinum nanoparticles were grafted on multi-walled carbon nanotubes using ultrasonic synthesis method(Pt/MWCNTs).The catalyst was characterized by field emission scanning electron microscope(FE-SEM),X-ray diffraction(XRD) and electrochemical techniques.The results showed that Pt nanoparticles were homogeneously inlaid on the surfaces of MWCNTs with an average size of 40±20 nm.The catalyst showed an excellent eletrocatalysis effect towards the reduction of carbon dioxide(CO2),it was used as CO2 sensing,and two good linear relationships were respectively obtained at Pt/MWCNTs modified glassey carbon electrode from 1 to 10 ppm and 10 to 100 ppm with a detection limit of 1 ppm. |
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| Keywords: | nano-Pt/MWCNTs ultrasonic synthesis CO2 sensing |
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