title: Synthesis and characteristic of polyaniline/Dy₂O₃ composites: Thermal property and electrochemical performance.
abstract: A simple route of in situ polymerization by the chemical oxidation method was successfully employed to synthesize polyaniline/dysprosium oxide (PANI/Dy2O3) composites. The synthesized materials were characterized by Fourier transform infrared spectra and X-ray diffraction. The thermal stability of the composite was studied by thermogravimetry (TG). The electrochemical performance of the composites was investigated by cyclic voltammetry and alternating current impedance spectroscopy with a three-electrode system. TG results suggested that the thermal stability of PANI/Dy2O3 composites showed a tendency to first increase and then decrease with increasing Dy2O3 amount. Electrochemical experiments indicated that the composite electrodes showed a lower capacitance than that of pure PANI, which may be attributed to the interaction between PANI and Dy2O3 in the composites.
authors: College of Environmental & Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China.  kdwangsx@126.com
authors: Shaoxu
authors: S
authors: Wang
authors: Physical and Chemical Testing Center, Qiqihar Railway Rolling Stock Co., Ltd., Qiqihar 161002, China.
authors: Yan
authors: Y
authors: Li
authors: College of Environmental & Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China.
authors: Zihang
authors: Z
authors: Huang
authors: College of Environmental & Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China.
authors: Hui
authors: H
authors: Li
mesh_terms: D000814:Aniline Compounds / Q000138:chemical synthesis / Q000737:chemistry; D004419:Dysprosium / Q000737:chemistry; D004560:Electricity; D004563:Electrochemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D000814:Aniline Compounds; C416807:polyaniline; D004419:Dysprosium; C030582:dysprosium oxide
keywords: PANI/Dy(2)O(3) composite; electrochemical performance; thermal stability