Confining MoSe2 Nanosheets into N-Doped Hollow Porous Carbon Microspheres for Fast-Charged and Long-Life Potassium-Ion Storage

2021 ◽  
Author(s):  
Fulan Zhong ◽  
Anding Xu ◽  
Qi Zeng ◽  
Yijun Wang ◽  
Guilan Li ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Carbon Microspheres ◽  
Ion Storage ◽  
Long Life

Porous hard carbon spheres derived from biomass for high-performance sodium/potassium-ion batteries

2021 ◽  
Vol 33 (5) ◽  
pp. 055401
Author(s):  
Shuijiao Chen ◽  
Kejian Tang ◽  
Fei Song ◽  
Zhichao Liu ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Metal Ion ◽  
High Performance ◽  
Potassium Ion ◽  
Waste Biomass ◽  
Carbon Microspheres ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Sodium Potassium ◽  
Ion Storage

Abstract Hard carbon is the most attractive anode material for electrochemical sodium/potassium-ion storage. The preparation of hard carbon spheres directly from the broad sources of biomass is of great interest but barely reported. Herein, we developed a simple two-step hydrothermal method to construct porous carbon microspheres directly from the original waste biomass of camellia shells. The porous carbon microspheres have high specific capacities of 250 mAh g−1 and 264.5 mAh g−1 at a current density of 100 mA g−1 for sodium-ion batteries and potassium-ion batteries, respectively. And it has excellent cycle stability for sodium ions and potassium ions outperforming most reported hard carbons, which is mainly attributed to the microporous structure and spherical morphology. The work paves a way to prepare porous hard carbon spheres directly from biomass for alkali metal-ion batteries.

Porous carbon microspheres with highly graphitized structure for potassium-ion storage

2020 ◽  
Vol 577 ◽  
pp. 48-53 ◽  
Author(s):  
Seung Ho Choi ◽  
Jesse Baucom ◽  
Xinru Li ◽  
Li Shen ◽  
Young-Hoon Seong ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Carbon Microspheres ◽  
Ion Storage

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

Fe3O4 quantum dots embedded in porous carbon microspheres for long-life lithium-ion batteries

2019 ◽  
Vol 12 ◽  
pp. 269-276 ◽  
Author(s):  
Yang Liu ◽  
Yan Dai ◽  
Xiaobin Jiang ◽  
Xiangcun Li ◽  
Zhijun Yan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
Lithium Ion ◽  
Carbon Microspheres ◽  
Long Life

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...

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
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