NDLI: Porous graphdiyne applied for sodium ion storage

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Shengliang Zheng, Jie He, Jianjiang Lv, Qing Wang, Ning Lan, Zhenggang Huang, Changshui Wang, Kun
Copyright Year	2017
Abstract	Sodium ion batteries have gained recognition as an intriguing candidate for next generation battery systems and large scale energy storage devices due to the natural abundance of sodium sources. In this study, we prepared bulk graphdiyne powder with a porous structure and explored its sodium storage properties. The assembled sodium ion batteries exhibited extraordinary electrochemical performance, including moderate specific capacity, long cycle life as well as excellent rate performance, which should be attributed to its unique three-dimensional porous structure, chemical stability and high electronic conductivity. We obtained a reversible capacity of 261 mA h g−1 after 300 cycles at a current density of 50 mA g−1. Even at a high current density of 100 mA g−1, the as-prepared GDY electrodes delivered a moderate specific capacity of 211 mA h g−1 after 1000 cycles, with an excellent capacity retention of 98.2%. The calculation results indicate that most intercalated Na cations stay in a large triangular hole in bulk material.
Starting Page	2045
Ending Page	2051
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	5
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta09822c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ion Natural abundance Sodium Electrochemistry Electric current
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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