Back to Search
Start Over
Carbon-Coated SnO2/Ti3C2 Composites with Enhanced Lithium Storage Performance.
- Source :
- Journal of Nanomaterials; 10/7/2019, p1-10, 10p
- Publication Year :
- 2019
-
Abstract
- Tin-based anode materials including oxides, composites oxides, and tin-based alloys are identified as promising candidates for energy storage attributed to the highest theoretical specific capacity. We introduce Ti<subscript>3</subscript>C<subscript>2</subscript>-MXene as structural skeletons and amorphous carbon as conductive networks for tin oxide in this work. Herein, carbon-coated kernel-like SnO<subscript>2</subscript> coupling with two-dimensional (2D) layered structure Ti<subscript>3</subscript>C<subscript>2</subscript>-MXene (C@SnO<subscript>2</subscript>/Ti<subscript>3</subscript>C<subscript>2</subscript>) composites were prepared by a hydrothermal reaction and a further calcination process. The fabricated C@SnO<subscript>2</subscript>/Ti<subscript>3</subscript>C<subscript>2</subscript> nanocomposites exhibit smaller charge transfer resistance, larger Li<superscript>+</superscript> diffusion coefficient, and better cycling stability than SnO<subscript>2</subscript>/Ti<subscript>3</subscript>C<subscript>2</subscript> and pure Ti<subscript>3</subscript>C<subscript>2</subscript>. Most of all, C@SnO<subscript>2</subscript>/Ti<subscript>3</subscript>C<subscript>2</subscript> nanocomposites display excellent initial capacity of 1531.5 mAh g<superscript>−1</superscript> at current density of 100 mA g<superscript>−1</superscript> and show outstanding rate performance of 540 mAh g<superscript>−1</superscript>even after 200 cycles. In our work, we will provide a new research idea for the composite materials of metal oxides and two-dimensional layered materials in the field of electrode materials for batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16874110
- Database :
- Complementary Index
- Journal :
- Journal of Nanomaterials
- Publication Type :
- Academic Journal
- Accession number :
- 138978675
- Full Text :
- https://doi.org/10.1155/2019/9082132