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Your search keyword '"Yang, Xiaoxiang"' showing total 4 results
Start Over Author "Yang, Xiaoxiang" Journal journal of materials research
4 results on '"Yang, Xiaoxiang"'

3. Rational synthesis of porous CuO/Cu2O/NiCo2O4 3D composites for high-performance supercapacitors

Author

Xin Chen, Yan Li, Chang Li, Hongliang Cao, Wang Lingling, Yang Xiaoxiang, and Huimin Yin

Subjects
010302 applied physics, Supercapacitor, Nanocomposite, Materials science, Mechanical Engineering, Composite number, Oxide, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Capacitance, chemistry.chemical_compound, chemistry, Mechanics of Materials, 0103 physical sciences, General Materials Science, CCNC, Composite material, 0210 nano-technology, Current density, Bimetallic strip
Abstract

Bimetallic oxide NiCo2O4 and its composites hold promising applications for supercapacitors owing to their theoretical capacity, inexpensiveness, and ease of synthesis. In this work, novel CuO/Cu2O/NiCo2O4 (CCNC) open-structured three-dimensional (3D) composites were synthesized. The multiple components and open structure of the composite provide many open channels for ion diffusion, thus, promoting good rate performance during the electrochemical reaction. The optimized sample (CCNC3–6) shows good electrochemical performance, with a high specific capacitance of 1614 F g−1 at a current density of 1 A g−1, and good rate performance by maintaining a capacitance of 1383 F g−1 for increasing current density to 20 A g−1 (with a merely 14% capacitance loss, as compared with that at 1 A g−1). The composite also shows enhanced cycle stability than pure NiCo2O4, with 81% remaining capacitance after 3000 cycles. The CCNC 3D nanocomposites are demonstrated to be promising for high-performance supercapacitor applications.

Published
2021

4. Rational synthesis of porous CuO/Cu2O/NiCo2O43D composites for high-performance supercapacitors

Author

Yin, Huimin, Yang, Xiaoxiang, Li, Chang, Li, Yan, Cao, Hongliang, Chen, Xin, and Wang, Lingling

Abstract

Abstract: Bimetallic oxide NiCo2O4and its composites hold promising applications for supercapacitors owing to their theoretical capacity, inexpensiveness, and ease of synthesis. In this work, novel CuO/Cu2O/NiCo2O4(CCNC) open-structured three-dimensional (3D) composites were synthesized. The multiple components and open structure of the composite provide many open channels for ion diffusion, thus, promoting good rate performance during the electrochemical reaction. The optimized sample (CCNC3–6) shows good electrochemical performance, with a high specific capacitance of 1614 F g−1at a current density of 1 A g−1, and good rate performance by maintaining a capacitance of 1383 F g−1for increasing current density to 20 A g−1(with a merely 14% capacitance loss, as compared with that at 1 A g−1). The composite also shows enhanced cycle stability than pure NiCo2O4, with 81% remaining capacitance after 3000 cycles. The CCNC 3D nanocomposites are demonstrated to be promising for high-performance supercapacitor applications. Graphical abstract:

Published
2021
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