SnO2 nanoparticles anchored on carbon foam as a freestanding anode for high performance potassium-ion batteries

2020 ◽  
Vol 13 (2) ◽  
pp. 571-578 ◽  
Author(s):  
Hailong Qiu ◽  
Lina Zhao ◽  
Muhammad Asif ◽  
Xiaoxiao Huang ◽  
Tianyu Tang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Sno2 Nanoparticles ◽  
Carbon Foam ◽  
Potassium Ion

SnO2@CF was obtained by anchoring SnO2 nanoparticles on carbon foam, which exhibited superior electrochemical performance for K+ storage.

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...

A general method for constructing robust, flexible and freestanding MXene@metal anodes for high-performance potassium-ion batteries

2019 ◽  
Vol 7 (16) ◽  
pp. 9716-9725 ◽  
Author(s):  
Yuan Tian ◽  
Yongling An ◽  
Shenglin Xiong ◽  
Jinkui Feng ◽  
Yitai Qian
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Potassium Ion ◽  
Electrodeposition Technique ◽  
Free Standing ◽  
Enhanced Electrochemical Performance ◽  
General Method ◽  
Metal Anodes

Flexible and free-standing MXene@Sb paper was fabricated via a general electrodeposition technique, and, in the form of anodes for potassium-ion batteries, it delivered enhanced electrochemical performance.

Self-assembled Ti3C2 MXene and N-rich porous carbon hybrids as superior anodes for high-performance potassium-ion batteries

2020 ◽  
Vol 13 (1) ◽  
pp. 246-257 ◽  
Author(s):  
Ruizheng Zhao ◽  
Haoxiang Di ◽  
Xiaobin Hui ◽  
Danyang Zhao ◽  
Rutao Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Reaction Kinetics ◽  
Porous Carbon ◽  
Self Assembly ◽  
High Performance ◽  
Potassium Ion ◽  
Electrostatic Attraction ◽  
The Novel ◽  
Self Assembled

The novel PDDA-NPCNs/Ti3C2 hybrids via an electrostatic attraction self-assembly approach effectively accelerate reaction kinetics and improve electrochemical performance as PIBs anodes.

Ultrafine SnO2 nanoparticles encapsulated in 3D porous carbon as a high-performance anode material for potassium-ion batteries

2019 ◽  
Vol 441 ◽  
pp. 227191 ◽  
Author(s):  
Zhiyuan Wang ◽  
Kangze Dong ◽  
Dan Wang ◽  
Shaohua Luo ◽  
Yanguo Liu ◽  
...  
Keyword(s):  
Anode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Sno2 Nanoparticles ◽  
Potassium Ion

Hierarchical T-Nb2O5 nanostructure with hybrid mechanisms of intercalation and pseudocapacitance for potassium storage and high-performance potassium dual-ion batteries

2018 ◽  
Vol 6 (37) ◽  
pp. 17889-17895 ◽  
Author(s):  
Na Li ◽  
Fan Zhang ◽  
Yongbing Tang
Keyword(s):  
Electrochemical Performance ◽  
Anode Material ◽  
High Performance ◽  
Potassium Ion ◽  
Fast Kinetics ◽  
Hybrid Mechanisms

Hierarchical T-Nb2O5 nanostructure has been firstly investigated as anode material for potassium-ion battery with fast kinetics, contributing to superior electrochemical performance of potassium dual-ion battery.

scholarly journals Homologous Strategy to Construct High-Performance Coupling Electrodes for Advanced Potassium-Ion Hybrid Capacitors

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Ying Xu ◽  
Jiafeng Ruan ◽  
Yuepeng Pang ◽  
Hao Sun ◽  
Chu Liang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Electrochemical Performance ◽  
High Performance ◽  
Large Scale ◽  
High Capacity ◽  
Rate Capability ◽  
High Energy ◽  
Potassium Ion ◽  
Koh Activation ◽  
Hybrid Capacitors

Abstract Potassium-ion hybrid capacitors (PIHCs) have been considered as promising potentials in mid- to large-scale storage system applications owing to their high energy and power density. However, the process involving the intercalation of K+ into the carbonaceous anode is a sluggish reaction, while the adsorption of anions onto the cathode surface is relatively faster, resulting in an inability to exploit the advantage of high energy. To achieve a high-performance PIHC, it is critical to promote the K+ insertion/desertion in anodic materials and design suitable cathodic materials matching the anodes. In this study, we propose a facile “homologous strategy” to construct suitable anode and cathode for high-performance PIHCs, that is, unique multichannel carbon fiber (MCCF)-based anode and cathode materials are firstly prepared by electrospinning, and then followed by sulfur doping and KOH activation treatment, respectively. Owing to a multichannel structure with a large interlayer spacing for introducing S in the sulfur-doped multichannel carbon fiber (S-MCCF) composite, it presents high capacity, super rate capability, and long cycle stability as an anode in potassium-ion cells. The cathode composite of activated multichannel carbon fiber (aMCCF) has a considerably high specific surface area of 1445 m2 g−1 and exhibits outstanding capacitive performance. In particular, benefiting from advantages of the fabricated S-MCCF anode and aMCCF cathode by homologous strategy, PIHCs assembled with the unique MCCF-based anode and cathode show outstanding electrochemical performance, which can deliver high energy and power densities (100 Wh kg−1 at 200 W kg−1, and 58.3 Wh kg−1 at 10,000 W kg−1) and simultaneously exhibit superior cycling stability (90% capacity retention over 7000 cycles at 1.0 A g−1). The excellent electrochemical performance of the MCCF-based composites for PIHC electrodes combined with their simple construction renders such materials attractive for further in-depth investigations of alkali-ion battery and capacitor applications.

scholarly journals Achieving the robust immobilization of CoP nanoparticles in cellulose nanofiber network-derived carbon via chemical bonding for a stable potassium ion storage

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44611-44623
Author(s):  
Xudong Zhao ◽  
Dan Zhou ◽  
Mingyang Chen ◽  
Jiaqi Yang ◽  
Li-Zhen Fan
Keyword(s):  
Electrochemical Performance ◽  
Chemical Bonding ◽  
Potassium Ion ◽  
Cellulose Nanofiber ◽  
Ion Storage ◽  
Enhanced Electrochemical Performance

A robust CoP@CNFC with enhanced electrochemical performance was synthesized via chemical bonding and demonstrates a promising potential toward an efficient K-storage.

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