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Interpenetrated Networks between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals with Patterned Macroporous Structure for High-Performance Lithium Ion Batteries.
ACS Appl Mater Interfaces. 2017 Jun 21; 9(24):20491-20500.AA

Abstract

Interpenetrated networks between graphitic carbon infilling and ultrafine TiO2 nanocrystals with patterned macropores (100-200 nm) were successfully synthesized. Polypyrrole layer was conformably coated on the primary TiO2 nanoparticles (∼8 nm) by a photosensitive reaction and was then transformed into carbon infilling in the interparticle mesopores of the TiO2 nanoparticles. Compared to the carbon/graphene supported TiO2 nanoparticles or carbon coated TiO2 nanostructures, the carbon infilling would provide a conductive medium and buffer layer for volume expansion of the encapsulated TiO2 nanoparticles, thus enhancing conductivity and cycle stability of the C-TiO2 anode materials for lithium ion batteries (LIBs). In addition, the macropores with diameters of 100-200 nm in the C-TiO2 anode and the mesopores in carbon infilling could improve electrolyte transportation in the electrodes and shorten the lithium ion diffusion length. The C-TiO2 electrode can provide a large capacity of 192.8 mA h g-1 after 100 cycles at 200 mA g-1, which is higher than those of the pure macroporous TiO2 electrode (144.8 mA h g-1), C-TiO2 composite electrode without macroporous structure (128 mA h g-1), and most of the TiO2 based electrodes in the literature. Importantly, the C-TiO2 electrode exhibits a high rate performance and still delivers a high capacity of ∼140 mA h g-1 after 1000 cycles at 1000 mA g-1 (∼5.88 C), suggesting good lithium storage properties of the macroporous C-TiO2 composites with high capacity, cycle stability, and rate capability. This work would be instructive for designing hierarchical porous TiO2 based anodes for high-performance LIBs.

Authors+Show Affiliations

State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.State Key Laboratory of Fine Chemicals, Chemical Engineering Department, Dalian University of Technology , Linggong Road No. 2, Dalian 116024, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28569503

Citation

Zheng, Wenji, et al. "Interpenetrated Networks Between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals With Patterned Macroporous Structure for High-Performance Lithium Ion Batteries." ACS Applied Materials & Interfaces, vol. 9, no. 24, 2017, pp. 20491-20500.
Zheng W, Yan Z, Dai Y, et al. Interpenetrated Networks between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals with Patterned Macroporous Structure for High-Performance Lithium Ion Batteries. ACS Appl Mater Interfaces. 2017;9(24):20491-20500.
Zheng, W., Yan, Z., Dai, Y., Du, N., Jiang, X., Dai, H., Li, X., & He, G. (2017). Interpenetrated Networks between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals with Patterned Macroporous Structure for High-Performance Lithium Ion Batteries. ACS Applied Materials & Interfaces, 9(24), 20491-20500. https://doi.org/10.1021/acsami.7b02345
Zheng W, et al. Interpenetrated Networks Between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals With Patterned Macroporous Structure for High-Performance Lithium Ion Batteries. ACS Appl Mater Interfaces. 2017 Jun 21;9(24):20491-20500. PubMed PMID: 28569503.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Interpenetrated Networks between Graphitic Carbon Infilling and Ultrafine TiO2 Nanocrystals with Patterned Macroporous Structure for High-Performance Lithium Ion Batteries. AU - Zheng,Wenji, AU - Yan,Zhijun, AU - Dai,Yan, AU - Du,Naixu, AU - Jiang,Xiaobin, AU - Dai,Hailing, AU - Li,Xiangcun, AU - He,Gaohong, Y1 - 2017/06/09/ PY - 2017/6/2/pubmed PY - 2017/6/2/medline PY - 2017/6/2/entrez KW - Li ion battery KW - TiO2 KW - carbon KW - macropore KW - mesopore SP - 20491 EP - 20500 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 9 IS - 24 N2 - Interpenetrated networks between graphitic carbon infilling and ultrafine TiO2 nanocrystals with patterned macropores (100-200 nm) were successfully synthesized. Polypyrrole layer was conformably coated on the primary TiO2 nanoparticles (∼8 nm) by a photosensitive reaction and was then transformed into carbon infilling in the interparticle mesopores of the TiO2 nanoparticles. Compared to the carbon/graphene supported TiO2 nanoparticles or carbon coated TiO2 nanostructures, the carbon infilling would provide a conductive medium and buffer layer for volume expansion of the encapsulated TiO2 nanoparticles, thus enhancing conductivity and cycle stability of the C-TiO2 anode materials for lithium ion batteries (LIBs). In addition, the macropores with diameters of 100-200 nm in the C-TiO2 anode and the mesopores in carbon infilling could improve electrolyte transportation in the electrodes and shorten the lithium ion diffusion length. The C-TiO2 electrode can provide a large capacity of 192.8 mA h g-1 after 100 cycles at 200 mA g-1, which is higher than those of the pure macroporous TiO2 electrode (144.8 mA h g-1), C-TiO2 composite electrode without macroporous structure (128 mA h g-1), and most of the TiO2 based electrodes in the literature. Importantly, the C-TiO2 electrode exhibits a high rate performance and still delivers a high capacity of ∼140 mA h g-1 after 1000 cycles at 1000 mA g-1 (∼5.88 C), suggesting good lithium storage properties of the macroporous C-TiO2 composites with high capacity, cycle stability, and rate capability. This work would be instructive for designing hierarchical porous TiO2 based anodes for high-performance LIBs. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/28569503/Interpenetrated_Networks_between_Graphitic_Carbon_Infilling_and_Ultrafine_TiO2_Nanocrystals_with_Patterned_Macroporous_Structure_for_High_Performance_Lithium_Ion_Batteries_ L2 - https://dx.doi.org/10.1021/acsami.7b02345 DB - PRIME DP - Unbound Medicine ER -
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