التفاصيل البيبلوغرافية
| العنوان: |
Carbon-Reinforced Nb 2 CT x MXene/MoS 2 Nanosheets as a Superior Rate and High-Capacity Anode for Sodium-Ion Batteries |
| المؤلفون: |
Zeyu Yuan (10035553), Lili Wang (104605), DongDong Li (10356822), Junming Cao (6795797), Wei Han (151406) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Neuroscience, Physiology, Biotechnology, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Sodium-Ion Batteries Sodium-ion bat., Nb 2 CT x MXene-framework MoS 2 nan., MoS 2, MoS 2 sheets, Nb 2 CT x, conductive Nb 2 CT x MXene nanosheets, capacity retention rate, energy storage devices, C anode |
| الوصف: |
Sodium-ion batteries operating at room temperature have emerged as a generation of energy storage devices to replace lithium-ion batteries; however, they are limited by a lack of anode materials with both an adequate lifespan and excellent rate capability. To address this issue, we developed Nb 2 CT x MXene-framework MoS 2 nanosheets coated with carbon (Nb 2 CT x @MoS 2 @C) and constructed a robust three-dimensional cross-linked structure. In such a design, highly conductive Nb 2 CT x MXene nanosheets prevent the restacking of MoS 2 sheets and provide efficient channels for charge transfer and diffusion. Additionally, the hierarchical carbon coating has a certain level of volume elasticity and excellent electrical conductivity to guarantee the intercalation of sodium ions, facilitating both fast kinetics and long-term stability. As a result, the Nb 2 CT x @MoS 2 @C anode delivers an ultrahigh reversible capacity of 530 mA h g –1 at 0.1 A g –1 after 200 cycles and very long cycling stability with a capacity of 403 mA h g –1 and only 0.01% degradation per cycle for 2000 cycles at 1.0 A g –1 . Moreover, this anode has an outstanding capacity retention rate of approximately 88.4% from 0.1 to 1 A g –1 in regard to rate performance. Most importantly, the Nb 2 CT x @MoS 2 @C anode can realize a quick charge and discharge at current densities of 20 or even 40 A g –1 with capacities of 340 and 260 mAh g –1 , respectively, which will increase the number of practical applications for sodium-ion batteries. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Carbon-Reinforced_Nb_sub_2_sub_CT_sub_x_sub_MXene_MoS_sub_2_sub_Nanosheets_as_a_Superior_Rate_and_High-Capacity_Anode_for_Sodium-Ion_Batteries/14270364 |
| DOI: |
10.1021/acsnano.1c00849.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsnano.1c00849.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.F4C60688 |
| قاعدة البيانات: |
BASE |