Graphitic Carbon Nitride Doped Copper-Manganese Alloy as High-Performance Electrode Material in Supercapacitor for Energy Storage

Samarjeet Singh Siwal; Qibo Zhang; Changbin Sun; Vijay Kumar Thakur

doi:10.3390/nano10010002

Graphitic Carbon Nitride Doped Copper-Manganese Alloy as High-Performance Electrode Material in Supercapacitor for Energy Storage

Nanomaterials (Basel). 2019 Dec 18;10(1):2. doi: 10.3390/nano10010002.

Authors

Samarjeet Singh Siwal¹, Qibo Zhang^{1

2}, Changbin Sun¹, Vijay Kumar Thakur^{3

4}

Affiliations

¹ Key Laboratory of Ionic Liquids Metallurgy, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
² State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province, Kunming 650093, China.
³ Enhanced Composites and Structures Center, School of Aerospace, Transport and Manufacturing, Cranfield University, Bedfordshire MK43 0AL, UK.
⁴ Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh 201314, India.

Abstract

Here, we report the synthesis of copper-manganese alloy (CuMnO₂) using graphitic carbon nitride (gCN) as a novel support material. The successful formation of CuMnO₂-gCN was confirmed through spectroscopic, optical, and other characterization techniques. We have applied this catalyst as the energy storage material in the alkaline media and it has shown good catalytic behavior in supercapacitor applications. The CuMnO₂-gCN demonstrates outstanding electrocapacitive performance, having high capacitance (817.85 A·g^-1) and well-cycling stability (1000 cycles) when used as a working electrode material for supercapacitor applications. For comparison, we have also used the gCN and Cu₂O-gCN for supercapacitor applications. This study proposes a simple path for the extensive construction of self-attaining double metal alloy with control size and uniformity in high-performance energy-storing materials.

Keywords: copper-manganese alloy; energy storage; graphitic carbon nitride; supercapacitor.