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Amorphous Red Phosphorus Embedded in Sandwiched Porous Carbon Enabling Superior Sodium Storage Performances
Author(s) -
Wu Ying,
Liu Zheng,
Zhong Xiongwu,
Cheng Xiaolong,
Fan Zhuangjun,
Yu Yan
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201703472
Subject(s) - materials science , anode , porosity , chemical engineering , amorphous solid , electrochemistry , carbon fibers , conductivity , electrode , volume (thermodynamics) , amorphous carbon , phosphorus , nanotechnology , composite material , chemistry , metallurgy , organic chemistry , physics , quantum mechanics , composite number , engineering
The red P anode for sodium ion batteries has attracted great attention recently due to the high theoretical capacity, but the poor intrinsic electronic conductivity and large volume expansion restrain its widespread applications. Herein, the red P is successfully encapsulated into the cube shaped sandwich‐like interconnected porous carbon building (denoted as P@C‐GO/MOF‐5) via the vaporization–condensation method. Superior cycling stability (high capacity retention of about 93% at 2 A g −1 after 100 cycles) and excellent rate performance (502 mAh g −1 at 10 A g −1 ) can be obtained for the P@C‐GO/MOF‐5 electrode. The superior electrochemical performance can be ascribed to the successful incorporation of red P into the unique carbon matrix with large surface area and pore volume, interconnected porous structure, excellent electronic conductivity and superior structural stability.