4.7 Article

Nanosheet-like ZnCo2O4@nitrogen doped graphene oxide/polyaniline composite for supercapacitor application: Effect of polyaniline incorporation

期刊

JOURNAL OF ALLOYS AND COMPOUNDS
卷 830, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.154734

关键词

Zinc cobaltite; N-doped graphene oxide; Polyaniline; Supercapacitor; Electrochemical activity

资金

  1. Korea Institute of Energy Technology Evaluation and Planning (KETEP)
  2. Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20194030202320]
  3. Mid-career Researcher Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2019R1A2C2086747]

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This paper reports structural and electrochemical characteristics for polyaniline (PANi) incorporated ZnCo2O4@N-GO hybrid nanocomposite synthesized by thermal reduction. The prepared composites were characterized using XRD, Raman, SEM, TEM, XPS, BET, and CV studies. The ZnCo2O4@N-GO/PANi composite exhibited enhanced porosity and electrochemical activity. SEM and TEM analysis revealed spherical and plate shaped particulates of ZnCo2O4@N-GO and ZnCo2O4@N-GO/PANi composite, respectively, indicating PANi effects in forming flakey shapes. XRD results confirmed multifaceted PANi-incorporated composite, with higher surface area and porosity, and enhanced electrochemical activity compared with pristine ZnCo2O4@N-GO. The PANi included composite electrode exhibited excellent electrochemical performance with good cyclic stability above 96%, significantly superior to ZnCo2O4@NGO composite. Thus, the proposed PANi included composite is a promising catalytic material for supercapacitor applications. (c) 2020 Elsevier B.V. All rights reserved.

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