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Title: Rationally-designed configuration of directly-coated Ni 3S 2/Ni electrode by RGO providing superior sodium storage

Abstract

Designing nanocomposite materials is an effective approach for enhancing the performance of sodium-ion batteries (SIBs), and understanding the synergy among components is critically important for new, better materials design. Here in this paper, a directly reduced graphene oxide (RGO) decorated anode electrode was designed and tested for SIBs, in which uniform RGO coating onto the Ni 3S 2/Ni electrode was realized using facile hydrothermal reactions. The results indicate that the RGO/Ni 3S 2/Ni electrode delivers a high reversible specific capacity of 448.6 mAh g -1, high capacity retention of 96.5% after 100 cycles, and excellent rate capability of 263.1 mAh g -1 at 800 mA g -1. Compared with the Ni 3S 2/Ni electrode, the improved performance of the RGO/Ni 3S 2/Ni electrode benefits from RGO-promoted displacement reaction of Ni 3S 2 with sodium. DFT calculations reveal that the RGO layer can significantly improve the electron mobility of the RGO/Ni 3S 2 + Na structure, and the hybrid interaction between the extraneous p orbits of C and indigenous p and d orbits of Ni, as well as p orbits of S is the major reason for why RGO can improve the electrical transport properties.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [7];  [8]
  1. Xi'an Univ. of Technology, Xi'an (China). Inst. of Advanced Electrochemical Energy; China Univ. of Geosciences, Beijing (China). Beijing Key Lab. of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Lab. of Mineral Materials, School of Materials Science and Technology; Tianjin Normal Univ., Tianjin (China). Energy & Materials Engineering Centre, College of Physics and Materials Science
  2. Xi'an Univ. of Technology, Xi'an (China). Inst. of Advanced Electrochemical Energy; Tianjin Normal Univ., Tianjin (China). Energy & Materials Engineering Centre, College of Physics and Materials Science
  3. China Univ. of Geosciences, Beijing (China). Beijing Key Lab. of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Lab. of Mineral Materials, School of Materials Science and Technology
  4. Xi'an Univ. of Technology, Xi'an (China). Inst. of Advanced Electrochemical Energy
  5. Xi'an Univ. of Technology, Xi'an (China). Inst. of Advanced Electrochemical Energy; China Univ. of Geosciences, Beijing (China). Beijing Key Lab. of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Lab. of Mineral Materials, School of Materials Science and Technology; Tianjin Normal Univ., Tianjin (China). Energy & Materials Engineering Centre, College of Physics and Materials Science
  6. Wuhan Univ. of Science and Technology (China). State Key Lab. of Refractories and Metallurgy
  7. Tianjin Normal Univ., Tianjin (China). Energy & Materials Engineering Centre, College of Physics and Materials Science
  8. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NNSFC)
OSTI Identifier:
1423327
Grant/Contract Number:
AC0576RL01830; 51572194; 51672189; 52XC1404; 2652016114
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 127; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Song, Xiaosheng, Li, Xifei, Bai, Zhimin, Yan, Bo, Xiong, Dongbin, Lin, Liangxu, Zhao, Hui, Li, Dejun, and Shao, Yuyan. Rationally-designed configuration of directly-coated Ni3S2/Ni electrode by RGO providing superior sodium storage. United States: N. p., 2018. Web. doi:10.1016/J.CARBON.2018.02.101.
Song, Xiaosheng, Li, Xifei, Bai, Zhimin, Yan, Bo, Xiong, Dongbin, Lin, Liangxu, Zhao, Hui, Li, Dejun, & Shao, Yuyan. Rationally-designed configuration of directly-coated Ni3S2/Ni electrode by RGO providing superior sodium storage. United States. doi:10.1016/J.CARBON.2018.02.101.
Song, Xiaosheng, Li, Xifei, Bai, Zhimin, Yan, Bo, Xiong, Dongbin, Lin, Liangxu, Zhao, Hui, Li, Dejun, and Shao, Yuyan. Wed . "Rationally-designed configuration of directly-coated Ni3S2/Ni electrode by RGO providing superior sodium storage". United States. doi:10.1016/J.CARBON.2018.02.101.
@article{osti_1423327,
title = {Rationally-designed configuration of directly-coated Ni3S2/Ni electrode by RGO providing superior sodium storage},
author = {Song, Xiaosheng and Li, Xifei and Bai, Zhimin and Yan, Bo and Xiong, Dongbin and Lin, Liangxu and Zhao, Hui and Li, Dejun and Shao, Yuyan},
abstractNote = {Designing nanocomposite materials is an effective approach for enhancing the performance of sodium-ion batteries (SIBs), and understanding the synergy among components is critically important for new, better materials design. Here in this paper, a directly reduced graphene oxide (RGO) decorated anode electrode was designed and tested for SIBs, in which uniform RGO coating onto the Ni3S2/Ni electrode was realized using facile hydrothermal reactions. The results indicate that the RGO/Ni3S2/Ni electrode delivers a high reversible specific capacity of 448.6 mAh g-1, high capacity retention of 96.5% after 100 cycles, and excellent rate capability of 263.1 mAh g-1 at 800 mA g-1. Compared with the Ni3S2/Ni electrode, the improved performance of the RGO/Ni3S2/Ni electrode benefits from RGO-promoted displacement reaction of Ni3S2 with sodium. DFT calculations reveal that the RGO layer can significantly improve the electron mobility of the RGO/Ni3S2 + Na structure, and the hybrid interaction between the extraneous p orbits of C and indigenous p and d orbits of Ni, as well as p orbits of S is the major reason for why RGO can improve the electrical transport properties.},
doi = {10.1016/J.CARBON.2018.02.101},
journal = {Carbon},
number = ,
volume = 127,
place = {United States},
year = {Wed Feb 28 00:00:00 EST 2018},
month = {Wed Feb 28 00:00:00 EST 2018}
}

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