Loading...
Please wait, while we are loading the content...
Similar Documents
Tailoring three-dimensional interconnected nanoporous graphene micro/nano-foams for lithium-sulfur batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lu, Liqiang Abeln, Thom Pei, Yutao |
| Copyright Year | 2020 |
| Abstract | Abstract Three-dimensional interconnected nanoporous graphene (NPG) microfoams and nanofoams are developed via a new approach of solid-state catalytic growth. Both NPG microfoam and nanofoam exhibit similar nanoporous structures that contain close tubular pores and open non-tubular pores but with different particle sizes. As electrochemical reactors for sulfur cathodes, sulfur is encapsulated inside the tubular pores. It is found that NPG nanoreactors can enhance the electrochemical performances in comparison with NPG microreactors, including improved reversible capacities, cyclic performances and rate performances in particular. The electrochemical impedance spectroscopy analysis reveals that NPG nanoreactors facilitate Li+ transportation and decrease the charge-transfer resistance in comparison with the microreactors, promoting the redox kinetics of multi-step conversions between sulfur and lithium sulfides. This work demonstrates a significant particle size effect of nanoporous graphene on the Li–S electrochemistry and can be useful for designing Li–S batteries as well as other electrochemical energy storage systems. |
| Starting Page | 437 |
| Ending Page | 447 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.carbon.2019.10.072 |
| Volume Number | 157 |
| Alternate Webpage(s) | https://www.rug.nl/research/portal/files/111588398/1_s2.0_S0008622319310905_main_1_.pdf |
| Alternate Webpage(s) | https://www.rug.nl/research/portal/files/100686335/1_s2.0_S0008622319310905_main.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.carbon.2019.10.072 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
