High Edge-Nitrogrn-Doped Porous Carbon Nanosheets with Rapid Pseudocapacitive Mechanism for Boosted Potassium-Ion Storage

2021 ◽  
Author(s):  
Lingfeng Zhu ◽  
Yun Wang ◽  
Minji Wang ◽  
Mouzhi Huang ◽  
Yanan Huang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Carbon Nanosheets ◽  
Ion Storage

Insights into high capacity and ultrastable carbonaceous anodes for potassium-ion storage via a hierarchical heterostructure

2020 ◽  
Vol 8 (5) ◽  
pp. 2836-2842 ◽  
Author(s):  
Chunrong Ma ◽  
Huijun Yang ◽  
Zhixin Xu ◽  
Zhengguang Fu ◽  
Yingying Xie ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Porous Carbon ◽  
Three Dimensional ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Nanosheets ◽  
Structure And Morphology ◽  
Ion Storage

Three-dimensional (3D) P-doped porous carbon nanosheets (PCSs) are designed for enhancing PIB performance by adjusting the electronic structure and morphology.

High edge-nitrogen-doped porous carbon nanosheets with rapid pseudocapacitive mechanism for boosted potassium-ion storage

Carbon ◽  
2021 ◽  
Author(s):  
Lingfeng Zhu ◽  
Yun Wang ◽  
Minji Wang ◽  
Mouzhi Huang ◽  
Yanan Huang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Ion Storage

Ultrathin Carbon Nanosheets for Highly-efficient Capacitive K-ion and Zn-ion Storage

2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Metal Ion ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Capacity Retention ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
High Efficient ◽  
Ion Storage

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>

Phytic Acid Induced Nitrogen Configuration Adjustment of Active Nitrogen-Rich Carbon Nanosheets for High-Performance Potassium-Ion Storage

2021 ◽  
Author(s):  
Ma Liang ◽  
Zhibin Li ◽  
Jinliang Li ◽  
Yao Dai ◽  
Chen Qian ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Phytic Acid ◽  
High Performance ◽  
Nitrogen Doping ◽  
Potassium Ion ◽  
Active Nitrogen ◽  
Carbon Nanosheets ◽  
Ion Storage

As a conventional modification approach, nitrogen doping in carbon can greatly improve the electrochemical performance for potassium (K)-ion storage. However, we realized that the improvement of electrochemical performance by simple...

ZIF‐8@ZIF‐67‐Derived Nitrogen‐Doped Porous Carbon Confined CoP Polyhedron Targeting Superior Potassium‐Ion Storage

Small ◽  
2020 ◽  
Vol 16 (7) ◽  
pp. 1906566 ◽  
Author(s):  
Yuyang Yi ◽  
Wen Zhao ◽  
Zhihan Zeng ◽  
Chaohui Wei ◽  
Chen Lu ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Nitrogen Doped ◽  
Ion Storage

Defects and sulfur-doping design of porous carbon spheres for high-capacity potassium-ion storage

2021 ◽  
Author(s):  
Ruling Huang ◽  
Xixue Zhang ◽  
Zexi Qu ◽  
Xiaodong Zhang ◽  
Jiao Lin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Capacitive Energy Storage ◽  
Heteroatom Doping ◽  
Ion Storage ◽  
Porous Carbon Spheres

Heteroatom-doping had been demonstrated to effectively improve the capacitive energy storage of hard carbon in potassium ion batteries (KIBs). However, the external defects introduced during doping process are responsible to...

Sign in / Sign up

Export Citation Format

Share Document