Development of Electropolymerized carbon nanotubes-polyaniline-3D graphene foam nanocomposite for supercapacitor applications

カテゴリ: 研究会(論文単位)

論文No: DEI16022

グループ名: 【A】基礎・材料・共通部門 誘電・絶縁材料研究会

発行日: 2016/01/12

タイトル(英語): Development of Electropolymerized carbon nanotubes-polyaniline-3D graphene foam nanocomposite for supercapacitor applications

著者名: Wisitsoraat Anurat(National Electronics and Computer Technology Center),Phokaratkul Ditsayuth(National Electronics and Computer Technology Center),Jaruwongrangsee Kata(National Electronics and Computer Technology Center),Thitima Maturos(National Electronics and Computer Technology Center),Tuantranont Adisorn(National Electronics and Computer Technology Center)

著者名(英語): Anurat Wisitsoraat(National Electronics and Computer Technology Center),Ditsayuth Phokaratkul(National Electronics and Computer Technology Center),Kata Jaruwongrangsee(National Electronics and Computer Technology Center),Maturos Thitima(National Electronics and Computer Technology Center),Adisorn Tuantranont(National Electronics and Computer Technology Center)

キーワード: 3D grapheme|Carbonanotube|Polyaniline|Nanocomposite|Supercapacitor|3D grapheme|Carbonanotube|Polyaniline|Nanocomposite|Supercapacitor

要約(日本語): In this work, we present the development of carbon nanotubes (CNTs)-polyaniline (Pani)-3D graphene foam (GP foam) composite prepared by electropolymerization process for supercapitor applications. GP foam was fabricated by chemical vapor deposition (CVD) on Ni foam using acetylene/hydrogen mixture (3/24 sccm) at 700oC for 3 minutes. Next, the foam was then etched in 3M HCl for an hour to partly remove Ni template. Next, multi-wall CNTs powder was dispersed in 1M HCl under sonication at 80oC for 2 hours and 0.2 M aniline monomer was added. Electrochemical polymerization in the CNTs-aniline monomer solution was then conducted on the GP-foam at 0.55 V vs. Ag/AgCl. Characterizations by electron microscopy and Raman spectroscopy confirmed the incorporation of CNTs in Pani/GP foam network with a number of nanowire features appeared on GP foam surface and dominant D and G carbon’s peaks compared with PANI peaks. Cyclic voltammetry results in 2M H2SO4 electrolyte showed that PANI’s redox peaks were broadened due to the presence of CNTs, indicating enhanced pseudocapacitance. From galvanostatic charge-discharge measurement, CNTs-Pani-GP foam exhibits a high specific capacitance of 920 Fg-1 at a specific current of 0.8 Ag-1, which is more than twice higher than that of Pani-GP foam (430 Fg-1). Therefore, CNTs-Pani-GP foam is a promising candidate for supercapacitor applications.

要約(英語): In this work, we present the development of carbon nanotubes (CNTs)-polyaniline (Pani)-3D graphene foam (GP foam) composite prepared by electropolymerization process for supercapitor applications. GP foam was fabricated by chemical vapor deposition (CVD) on Ni foam using acetylene/hydrogen mixture (3/24 sccm) at 700oC for 3 minutes. Next, the foam was then etched in 3M HCl for an hour to partly remove Ni template. Next, multi-wall CNTs powder was dispersed in 1M HCl under sonication at 80oC for 2 hours and 0.2 M aniline monomer was added. Electrochemical polymerization in the CNTs-aniline monomer solution was then conducted on the GP-foam at 0.55 V vs. Ag/AgCl. Characterizations by electron microscopy and Raman spectroscopy confirmed the incorporation of CNTs in Pani/GP foam network with a number of nanowire features appeared on GP foam surface and dominant D and G carbon’s peaks compared with PANI peaks. Cyclic voltammetry results in 2M H2SO4 electrolyte showed that PANI’s redox peaks were broadened due to the presence of CNTs, indicating enhanced pseudocapacitance. From galvanostatic charge-discharge measurement, CNTs-Pani-GP foam exhibits a high specific capacitance of 920 Fg-1 at a specific current of 0.8 Ag-1, which is more than twice higher than that of Pani-GP foam (430 Fg-1). Therefore, CNTs-Pani-GP foam is a promising candidate for supercapacitor applications.

原稿種別: 英語

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