Preparation of 3D Architecture Graphdiyne Nanosheets for High-Performance Sodium-Ion Batteries and Capacitors
Here, we apply three-dimensional (3D) architecture graphdiyne nanosheet (GDY-NS) as anode materials for sodium-ion storage devices achieving high energy and power performance along with excellent cyclic ability. The contribution of 3D architecture nanostructure and intramolecular pores of the GDY-NS...
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Published in | ACS applied materials & interfaces Vol. 9; no. 46; pp. 40604 - 40613 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
22.11.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Here, we apply three-dimensional (3D) architecture graphdiyne nanosheet (GDY-NS) as anode materials for sodium-ion storage devices achieving high energy and power performance along with excellent cyclic ability. The contribution of 3D architecture nanostructure and intramolecular pores of the GDY-NS can substantially optimize the sodium storage behavior through the accommodated intramolecular pore, 3D interconnective porous structure, and increased activity sites to facilitate a fast sodium-ion-diffusion channel. The contribution of butadiyne linkages and the formation of a stable solid electrolyte interface layer are directly confirmed through the in situ Raman measurement. The GDY-NS-based sodium-ion batteries exhibit a stable reversible capacity of approximately 812 mAh g–1 at a current density of 0.05 A g–1; they maintain more than 405 mAh g–1 over 1000 cycles at a current density of 1 A g–1. Furthermore, the sodium-ion capacitors could deliver a capacitance more than 200 F g–1 over 3000 cycles at 1 A g–1 and display an initial specific energy as high as 182.3 Wh kg–1 at a power density of 300 W kg–1 and maintain specific energy of 166 Wh kg–1 even at a power density of 15 000 W kg–1. The high energy and power density along with excellent cyclic performance based on the GDY-NS anode offers a great potential toward application on next-generation energy storage devices. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1944-8244 1944-8252 |
DOI: | 10.1021/acsami.7b11420 |