tailieunhanh - Fabrication and characterization of supercapacitor electrode by 3D printing
The ink was successfully printed on nickel foam and graphite paper substrates using a modified 3D printer followed by solvent evaporation to form a porous CNTs/CoFe2O4 aerogel film. The characterization results show that the film has porous surface, high electrical conductivity and good electrochemical properties, indicating its promising application as supercapacitor electrode for energy conversion and storage. | Vietnam Journal of Science and Technology 56 (5) (2018) 574-581 DOI: FABRICATION AND CHARACTERIZATION OF SUPERCAPACITOR ELECTRODE BY 3D PRINTING Hoang Tran Dung1, *, Ngo Thanh Dung1, Trinh Quang Dung1, Doan Thanh Tung1, 2, Nguyen Thi Yen1, Le Thi Thanh Tam2, Tran Viet Thu3, Phan Ngoc Hong2, 4, Le Trong Lu1, 2, * 1 Institute for Tropical Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 2 Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi 3 Le Quy Don Technical University, 236 Hoang Quoc Viet, Bac Tu Liem, Ha Noi 4 Center for high technology development, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi * Email: ltlu@; htdung@; Received: 13 December 2017; Accepted for publication: 1 September 2018 Abstract. 3D printing technology has emerged as a unique platform for rapid prototyping of various applications at low cost. Herein, we present a study on the fabrication and characterization of supercapacitor electrode by 3D printing. A colloidal suspension containing carbon nanotubes (CNTs) and cobalt ferrite nanoparticles (CoFe2O4 NPs) was used as ink. The ink was successfully printed on nickel foam and graphite paper substrates using a modified 3D printer followed by solvent evaporation to form a porous CNTs/CoFe2O4 aerogel film. The characterization results show that the film has porous surface, high electrical conductivity and good electrochemical properties, indicating its promising application as supercapacitor electrode for energy conversion and storage. Keywords: 3D printing, electrode, supercapacitor, hybrid nanomaterials. Classification numbers: ; 1. INTRODUCTION The economic and social development of modern society is increasingly dependent on energy supply, which makes energy conversion and storage becoming important. Batteries are widely used in industrial applications because of their high energy density. In recent years, supercapacitors have .
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