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General One‐Pot Synthesis of Transition‐Metal Phosphide/Nitrogen‐Doped Carbon Hybrid Nanosheets as Ultrastable Anodes for Sodium‐Ion Batteries
Author(s) -
Li Jingjing,
Shi Liang,
Gao Jingyu,
Zhang Genqiang
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201705432
Subject(s) - phosphide , anode , materials science , nanosheet , carbon fibers , nanotechnology , transition metal , energy storage , nanostructure , lithium (medication) , nanoparticle , prussian blue , chemical engineering , electrochemistry , metal , inorganic chemistry , electrode , catalysis , chemistry , metallurgy , composite material , organic chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering , composite number
Sodium‐ion batteries (SIBs) have been considered as promising energy storage devices in grid‐level applications, owing to their largely reduced cost compared with that of lithium‐ion batteries. However, the practical application of SIBs has been seriously hindered because of the lack of appropriate anode materials, limited by the thermodynamics perspective, which is one of the central task at current stage. Herein, we have developed a general one‐pot strategy for the synthesis of transition‐metal phosphide (TMP) based hybrid nanosheets composed of carbon‐coated TMP nanoparticles anchored to the surface of nitrogen‐doped carbon nanosheets. This facile and cost‐effective method is quite universal and holds potential to be further extended to other metal phosphide materials. Significantly, the hybrid nanosheet electrode possesses excellent sodium storage properties as anodes for SIBs, including high specific capacity, an ultra‐long cycle life and a remarkable rate performance. This work makes a significant contribution to not only the synthetic methodology of TMP–carbon two‐dimensional hybrid nanostructures, but also the application of TMP‐based anodes for high‐energy SIBs.