التفاصيل البيبلوغرافية
| العنوان: |
Dual-Functional Template-Induced In Situ Polymerization Process Enables the Hierarchical Carbonaceous Nanotubes with Simultaneous Sn Cluster Incorporation and Nitrogen-Doping for Superior Potassium-Ion Storage |
| المؤلفون: |
Jie Li (15030), Gongrui Wang (10304923), Lai Yu (3420074), Jingyu Gao (5352323), Yapeng Li (124282), Suyuan Zeng (1902247), Genqiang Zhang (1794397) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Medicine, Developmental Biology, Plant Biology, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, cyclic stability, carbonaceous-based anode materials, dual-functional template, storage capability, u-Sn, shape-directing agents, carbonaceous nanotubes, capacity, X-ray photoelectron spectroscopy, nitrogen doping, energy density, titration technique, mA, Situ Polymerization Process Enables, Superior Potassium-Ion Storage Pota., Raman spectrum, Dual-Functional Template-Induced, exhibit, cycling stability, power density, Hierarchical Carbonaceous Nanotubes, cycling capability, MnO 2 nanowires |
| الوصف: |
Potassium ion-based energy storage devices have received extensive attention for grid-level applications due to their abundant natural resources and low cost. However, the large ionic radius of K + leads to inferior capacities and cyclic stability, which hinders their practical application. Herein, hierarchical carbonaceous nanotubes with simultaneous ultrasmall Sn cluster incorporation and nitrogen doping (denoted as u-Sn@NCNTs) are fabricated using MnO 2 nanowires as a dual-functional template ( in situ polymerization and shape-directing agents) and subsequent carbonization treatment. The u-Sn@NCNTs exhibit a superior K + storage capability with a high reversible capacity (220.1 mA h g –1 at 0.1 A g –1 ) and long cycling stability (149.9 mA h g –1 at 1 A g –1 after 4000 cycles). Besides, the u-Sn@NCNTs exhibit superior cycling stability up to 10000 cycles at 5 A g –1 for Na + storage. The potassium storage mechanism and kinetics are investigated based on ex situ X-ray photoelectron spectroscopy, in situ Raman spectrum, and galvanostatic intermittent titration technique. More importantly, u-Sn@NCNTs can be used as the anode for potassium ion hybrid capacitors, achieving a superior energy density of 181.4 W h kg –1 at a power density of 185 W kg –1 with excellent cycling capability. This work could push forward the development and application of carbonaceous-based anode materials for next-generation high-performance rechargeable batteries. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Dual-Functional_Template-Induced_i_In_Situ_i_Polymerization_Process_Enables_the_Hierarchical_Carbonaceous_Nanotubes_with_Simultaneous_Sn_Cluster_Incorporation_and_Nitrogen-Doping_for_Superior_Potassium-Ion_Storage/14216998 |
| DOI: |
10.1021/acsami.0c21883.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsami.0c21883.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.DD5479C6 |
| قاعدة البيانات: |
BASE |