Nitrogen and Oxygen Co‐Doped Porous Hard Carbon Nanospheres with Core‐Shell Architecture as Anode Materials for Superior Potassium‐Ion Storage

Bimetallic sulfide SnS/MoS2 heterostructures decorating N, S co-doped carbon nanosheets have been synthesized, and evaluated as high performance anode materials for SIBs.

Download Full-text

A Three-Dimensional Carbon Framework Constructed by N/S Co-doped Graphene Nanosheets with Expanded Interlayer Spacing Facilitates Potassium Ion Storage

ACS Energy Letters ◽

10.1021/acsenergylett.0c00413 ◽

2020 ◽

Vol 5 (5) ◽

pp. 1653-1661 ◽

Cited By ~ 12

Author(s):

Wenxiu Yang ◽

Jinhui Zhou ◽

Shuo Wang ◽

Zichen Wang ◽

Fan Lv ◽

...

Keyword(s):

Graphene Nanosheets ◽

Three Dimensional ◽

Interlayer Spacing ◽

Potassium Ion ◽

Carbon Framework ◽

Ion Storage ◽

Doped Graphene ◽

Co Doped

Download Full-text

Potassium‐Ion Storage in Cellulose‐Derived Hard Carbon: The Role of Functional Groups

Batteries & Supercaps ◽

10.1002/batt.202000116 ◽

2020 ◽

Vol 3 (9) ◽

pp. 953-960 ◽

Cited By ~ 2

Author(s):

Ashok Kumar Nanjundan ◽

Rohit Ranganathan Gaddam ◽

Amir H. Farokh Niaei ◽

Pratheep K. Annamalai ◽

Deepak P. Dubal ◽

...

Keyword(s):

Functional Groups ◽

Potassium Ion ◽

Hard Carbon ◽

Ion Storage

Download Full-text

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

Journal of Materials Chemistry A ◽

10.1039/d1ta09337a ◽

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...

Download Full-text

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

Nanotechnology ◽

10.1088/1361-6528/ac317d ◽

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.

Download Full-text