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Porous Fe2O3 Nanoframeworks Encapsulated within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery.
ACS Nano 2017; 11(5):5140-5147AN

Abstract

Integrating nanoscale porous metal oxides into three-dimensional graphene (3DG) with encapsulated structure is a promising route but remains challenging to develop high-performance electrodes for lithium-ion battery. Herein, we design 3DG/metal organic framework composite by an excessive metal-ion-induced combination and spatially confined Ostwald ripening strategy, which can be transformed into 3DG/Fe2O3 aerogel with porous Fe2O3 nanoframeworks well encapsulated within graphene. The hierarchical structure offers highly interpenetrated porous conductive network and intimate contact between graphene and porous Fe2O3 as well as abundant stress buffer nanospace for effective charge transport and robust structural stability during electrochemical processes. The obtained free-standing 3DG/Fe2O3 aerogel was directly used as highly flexible anode upon mechanical pressing for lithium-ion battery and showed an ultrahigh capacity of 1129 mAh/g at 0.2 A/g after 130 cycles and outstanding cycling stability with a capacity retention of 98% after 1200 cycles at 5 A/g, which is the best results that have been reported so far. This study offers a promising route to greatly enhance the electrochemical properties of metal oxides and provides suggestive insights for developing high-performance electrode materials for electrochemical energy storage.

Authors+Show Affiliations

State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China. Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Xiangtan University , Hunan 411105, China.State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China.State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China.Sustainable Energy Technologies Center, College of Engineering, King Saud University , Riyadh 11421, Kingdom of Saudi Arabia.Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Xiangtan University , Hunan 411105, China.State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University , Shanghai 200433, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

28457124

Citation

Jiang, Tiancai, et al. "Porous Fe2O3 Nanoframeworks Encapsulated Within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery." ACS Nano, vol. 11, no. 5, 2017, pp. 5140-5147.
Jiang T, Bu F, Feng X, et al. Porous Fe2O3 Nanoframeworks Encapsulated within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery. ACS Nano. 2017;11(5):5140-5147.
Jiang, T., Bu, F., Feng, X., Shakir, I., Hao, G., & Xu, Y. (2017). Porous Fe2O3 Nanoframeworks Encapsulated within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery. ACS Nano, 11(5), pp. 5140-5147. doi:10.1021/acsnano.7b02198.
Jiang T, et al. Porous Fe2O3 Nanoframeworks Encapsulated Within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery. ACS Nano. 2017 05 23;11(5):5140-5147. PubMed PMID: 28457124.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Porous Fe2O3 Nanoframeworks Encapsulated within Three-Dimensional Graphene as High-Performance Flexible Anode for Lithium-Ion Battery. AU - Jiang,Tiancai, AU - Bu,Fanxing, AU - Feng,Xiaoxiang, AU - Shakir,Imran, AU - Hao,Guolin, AU - Xu,Yuxi, Y1 - 2017/05/02/ PY - 2017/5/2/pubmed PY - 2017/5/2/medline PY - 2017/5/2/entrez KW - anode KW - lithium-ion battery KW - porous Fe2O3 KW - prussian blue KW - three-dimensional graphene SP - 5140 EP - 5147 JF - ACS nano JO - ACS Nano VL - 11 IS - 5 N2 - Integrating nanoscale porous metal oxides into three-dimensional graphene (3DG) with encapsulated structure is a promising route but remains challenging to develop high-performance electrodes for lithium-ion battery. Herein, we design 3DG/metal organic framework composite by an excessive metal-ion-induced combination and spatially confined Ostwald ripening strategy, which can be transformed into 3DG/Fe2O3 aerogel with porous Fe2O3 nanoframeworks well encapsulated within graphene. The hierarchical structure offers highly interpenetrated porous conductive network and intimate contact between graphene and porous Fe2O3 as well as abundant stress buffer nanospace for effective charge transport and robust structural stability during electrochemical processes. The obtained free-standing 3DG/Fe2O3 aerogel was directly used as highly flexible anode upon mechanical pressing for lithium-ion battery and showed an ultrahigh capacity of 1129 mAh/g at 0.2 A/g after 130 cycles and outstanding cycling stability with a capacity retention of 98% after 1200 cycles at 5 A/g, which is the best results that have been reported so far. This study offers a promising route to greatly enhance the electrochemical properties of metal oxides and provides suggestive insights for developing high-performance electrode materials for electrochemical energy storage. SN - 1936-086X UR - https://www.unboundmedicine.com/medline/citation/28457124/Porous_Fe2O3_Nanoframeworks_Encapsulated_within_Three_Dimensional_Graphene_as_High_Performance_Flexible_Anode_for_Lithium_Ion_Battery_ L2 - https://dx.doi.org/10.1021/acsnano.7b02198 DB - PRIME DP - Unbound Medicine ER -