TY - JOUR
T1 - Prussian Blue Analogue with Fast Kinetics Through Electronic Coupling for Sodium Ion Batteries
AU - Nie, Ping
AU - Yuan, Jiaren
AU - Wang, Jie
AU - Le, Zaiyuan
AU - Xu, Guiyin
AU - Hao, Liang
AU - Pang, Gang
AU - Wu, Yuting
AU - Dou, Hui
AU - Yan, Xiaohong
AU - Zhang, Xiaogang
N1 - Funding Information:
We gratefully ackonwledage financial support from the National Program on Key Basic Research Project of China (2014CB239701), National Natural Science Foundation of China (51372116, 51672128), Prospective Joint Research Project of Cooperative Innovation Fund of Jiangsu Province (BY2015003-7), Anhui Provincial Natural Science Foundation (KJ2016A092, 1708085QE115), Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and the support of computer resources from National Supercomputing Center in Shenzhen. P. Nie acknowledges Funding for Outstanding Doctoral Dissertation in NUAA (BCXJ14-12), Funding of Jiangsu Innovation Program for Graduate Education (KYLX-0254, KYZZ16-0166), and China Scholarship Council (201406830023) for providing a scholarship for studying at University of California, Los Angeles as a visiting graduate. Y.W. acknowledges Founding of Graduate Innovation Center in NUAA (kfjj20160601).
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/6/21
Y1 - 2017/6/21
N2 - Alternative battery systems based on the chemistry of sodium are being considered to offer sustainability and cost-effectiveness. Herein, a simple and new method is demonstrated to enable nickel hexacyanoferrate (NiHCF) Prussian blue analogues (PBA) nanocrystals to be an excellent host for sodium ion storage by functionalization with redox guest molecule. The method is achieved by using NiHCF PBA powders infiltrated with the 7,7,8,8-tetracyanoquinododimethane (TCNQ) solution. Experimental and ab initio calculations results suggest that TCNQ molecule bridging with Fe atoms in NiHCF Prussian blue analogue leads to electronic coupling between TCNQ molecules and NiHCF open-framework, which functions as an electrical highway for electron motion and conductivity enhancement. Combining the merits including high electronic conductivity, open framework structure, nanocrystal, and interconnected mesopores, the NiHCF/TCNQ shows high specific capacity, fast kinetics and good cycling stability, delivering a high specific capacity of 35 mAh g-1 after 2000 cycles, corresponding a capacity loss of 0.035% decay per cycle.
AB - Alternative battery systems based on the chemistry of sodium are being considered to offer sustainability and cost-effectiveness. Herein, a simple and new method is demonstrated to enable nickel hexacyanoferrate (NiHCF) Prussian blue analogues (PBA) nanocrystals to be an excellent host for sodium ion storage by functionalization with redox guest molecule. The method is achieved by using NiHCF PBA powders infiltrated with the 7,7,8,8-tetracyanoquinododimethane (TCNQ) solution. Experimental and ab initio calculations results suggest that TCNQ molecule bridging with Fe atoms in NiHCF Prussian blue analogue leads to electronic coupling between TCNQ molecules and NiHCF open-framework, which functions as an electrical highway for electron motion and conductivity enhancement. Combining the merits including high electronic conductivity, open framework structure, nanocrystal, and interconnected mesopores, the NiHCF/TCNQ shows high specific capacity, fast kinetics and good cycling stability, delivering a high specific capacity of 35 mAh g-1 after 2000 cycles, corresponding a capacity loss of 0.035% decay per cycle.
KW - Prussian blue analogue
KW - TCNQ
KW - electronic coupling
KW - fast kinetics
KW - sodium ion batteries
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U2 - 10.1021/acsami.7b05178
DO - 10.1021/acsami.7b05178
M3 - Article
C2 - 28570041
AN - SCOPUS:85021090314
VL - 9
SP - 20306
EP - 20312
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 24
ER -