Hierarchical TiO2–SnO2–graphene aerogels for enhanced lithium storage

Literature Information

Publication Date 2014-11-27
DOI 10.1039/C4CP04887C
Impact Factor 3.676
Authors

Sheng Han, Jianzhong Jiang, Yanshan Huang, Yanping Tang, Jing Cao, Dongqing Wu


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Abstract

Three-dimensional (3D) TiO2–SnO2–graphene aerogels (TTGs) were built up from the graphene oxide nanosheets supported with both TiO2 and SnO2 nanoparticles (NPs) via a facile hydrothermal assembly process. The resulting TTGs exhibit a 3D hierarchical porous architecture with uniform distribution of SnO2 and TiO2 NPs on the graphene surface, which not only effectively prevents the agglomeration of SnO2 NPs, but also facilitates the fast ion/electron transport in 3D pathways. As the anode materials in lithium ion batteries (LIBs), TTGs manifest a high reversible capacity of 750 mA h g−1 at 0.1 A g−1 for 100 cycles. Even at a high current density of 1 A g−1, a reversible capacity of 470 mA h g−1 can still be achieved from the TTG based LIB anode over 150 cycles.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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