Enhancing Catalytic Activity of Titanium Oxide in Lithium–Sulfur Batteries by Band Engineering
Xi'an Jiaotong University · Tsinghua University · +1 more institution
Abstract
Abstract The altering of electronic states of metal oxides offers a promising opportunity to realize high‐efficiency surface catalysis, which play a key role in regulating polysulfides (PS) redox in lithium–sulfur (Li–S) batteries. However, little effort has been devoted to understanding the relationship between the electronic state of metal oxides and a catalyst's properties in Li–S cells. Herein, defect‐rich heterojunction electrocatalysts composed of ultrathin TiO 2‐ x nanosheets and carbon nanotubes (CNTs) for Li–S batteries are reported. Theoretical simulations indicate that oxygen vacancies and heterojunction can enhance electronic conductivity and chemical adsorption. Spectroscopy and electrochemical…
Citation impact
- FWCI
- 34.38
- Percentile
- 100%
- References
- 67
Authors
11Topics & keywords
- Materials science
- Catalysis
- Surface engineering
- Heterojunction
- Titanium oxide
- Electrochemistry
- Nanotechnology
- Oxide