title: Functionalization of super-aligned carbon nanotube film using hydrogen peroxide solution and its application in copper electrodeposition.
abstract: In order to make super-aligned carbon nanotubes (SACNT) homogeneously spread in electrolytes, a swift and effective method was devised for surface functionalization of SACNT film by ohmic heating using hydrogen peroxide solution. Controllable generation of defects and notable graft of oxygen functional groups on the sidewall of SACNTs were induced as proven by X-ray photoelectron spectroscopy and Raman spectroscopy. Differently from the harsh wet chemical oxidation, the super-aligned morphology and structural integrity of carbon nanotubes in the SACNT film were found to be well preserved by electron microscopy analysis. The functionalized treatment can remove extraneous material contaminating SACNT film and improve its conductivity. The grafting of polar ionizable groups has been proved to effectively eliminate the agglomeration of SACNTs. When the oxidized SACNT film was used as host material for electrodeposition of copper, the composite film of well-bonded SACNTs and Cu was successfully prepared.
authors.affiliation: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Lunqiao
authors.initials: L
authors.lastname: Xiong
authors.affiliation: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Shuai
authors.affiliation: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Zecheng
authors.initials: Z
authors.lastname: Hou
authors.affiliation: Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Zhu
authors.affiliation: School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China. Electronic address: zqqlwz@tsinghua.edu.cn.
authors.forename: Wenzhen
authors.initials: W
authors.lastname: Li
keywords: Electrical conductivity; Electrodeposition; Hydrogen peroxide; SACNT functionalization; SACNT/copper film; Super-aligned carbon nanotubes (SACNT); Surface characterization