MOF-derived manganese monoxide nanosheet-assembled microflowers for enhanced lithium-ion storage

Nanoscale ◽  
2019 ◽  
Vol 11 (22) ◽  
pp. 10763-10773 ◽  
Author(s):  
Yuping Guo ◽  
Tingting Feng ◽  
Jian Yang ◽  
Feng Gong ◽  
Cheng Chen ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Reversible Capacity ◽  
Ion Storage ◽  
Manganese Monoxide

MOF-derived MnO@rGO possesses a microflower structure assembled by nanosheets and exhibits a reversible capacity of 930 mA h g−1 at 2 A g−1.

scholarly journals Nickel-Embedded Carbon Materials Derived from Wheat Flour for Li-Ion Storage

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4611
Author(s):  
Wen Ding ◽  
Xiaozhong Wu ◽  
Yanyan Li ◽  
Shuo Wang ◽  
Shuping Zhuo
Keyword(s):  
Anode Material ◽  
Wheat Flour ◽  
Lithium Ion ◽  
Nanocrystalline Structure ◽  
Reversible Capacity ◽  
Nickel Nitrate ◽  
Carbon Anode ◽  
Ion Storage ◽  
Superior Electrochemical Properties

The biomass-based carbons anode materials have drawn significant attention because of admirable electrochemical performance on account of their nontoxicity and abundance resources. Herein, a novel type of nickel-embedded carbon material (nickel@carbon) is prepared by carbonizing the dough which is synthesized by mixing wheat flour and nickel nitrate as anode material in lithium-ion batteries. In the course of the carbonization process, the wheat flour is employed as a carbon precursor, while the nickel nitrate is introduced as both a graphitization catalyst and a pore-forming agent. The in situ formed Ni nanoparticles play a crucial role in catalyzing graphitization and regulating the carbon nanocrystalline structure. Mainly owing to the graphite-like carbon microcrystalline structure and the microporosity structure, the NC-600 sample exhibits a favorable reversible capacity (700.8 mAh g−1 at 0.1 A g−1 after 200 cycles), good rate performance (51.3 mAh g−1 at 20 A g−1), and long-cycling durability (257.25 mAh g−1 at 1 A g−1 after 800 cycles). Hence, this work proposes a promising inexpensive and highly sustainable biomass-based carbon anode material with superior electrochemical properties in LIBs.

scholarly journals W2C/WS2 Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1336 ◽  
Author(s):  
Thang Phan Nguyen ◽  
Il Tae Kim
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Transition Metal Dichalcogenides ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Facile Hydrothermal Method ◽  
Initial Discharge ◽  
Ion Storage ◽  
Metal Dichalcogenides ◽  
Prepared Alloy

Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W2C/WS2 alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W2C in the WS2 NFs improved their electronic properties. Among them, the W2C/WS2_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g−1 and excellent cyclability corresponding to a reversible capacity of 500 mAh g−1 after 100 cycles compared to that of the pure WS2 NF electrode. Therefore, the incorporation of W2C is a promising approach to improve the performance of LIB anode materials.

Functionalized Carbonaceous Materials as Cathode for Lithium-Ion Batteries

MRS Advances ◽  
2016 ◽  
Vol 1 (45) ◽  
pp. 3037-3042 ◽  
Author(s):  
Hai Zhong ◽  
Chunhua Wang ◽  
Zhibin Xu ◽  
Fei Ding ◽  
Xingjiang Liu
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Carbon Particles ◽  
Ion Storage ◽  
Activated Carbon Particles ◽  
Storage Buffer ◽  
A Current

ABSTRACTActivated carbon materials are integrated into functionalization of graphene nano-sheets to serve as a high-power lithium cathode. The electrochemical performance shows that the composite displays the highest reversible capacity (c. 170 mAh g-1) comparing with functionalized graphene and activated carbon. Also, approximately 92% of its capacity can be retained after 4,000 cycles at a current of 1 A g-1. Moreover, the composite exhibits an excellent rate performance, a reversible capacity of 90 mAh g-1 even at 6 A g-1, which corresponds to the power density of 15.2 kW kg-1 and energy density of 227 Wh kg-1, respectively. The high performance of this composite can be attributed to the fact that the activated carbon particles not only reduce the graphene sheet stacking thus making it easier for ions to diffuse, but also act as an ion storage buffer against accelerating electron transfer.

scholarly journals Uniform gallium oxyhydroxide nanorod anodes with superior lithium-ion storage

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 34896-34901
Author(s):  
Jingjing Feng ◽  
Bowen Fu ◽  
Liang Fang ◽  
Fang Wang ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Reversible Capacity ◽  
Rate Performance ◽  
Ion Storage

The hydrothermal GaOOH nanorods with uniform morphology show highly reversible capacity and superior rate performance with boosted pseudocapacitance contribution.

Synthesis of Nitrogen and Phosphorus Dual-Doped Graphene Oxide as High-Performance Anode Material for Lithium-Ion Batteries

2020 ◽  
Vol 20 (12) ◽  
pp. 7673-7679
Author(s):  
Ke Wang ◽  
Zhi Li
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Nitrogen And Phosphorus ◽  
Xrd Pattern ◽  
Ion Storage ◽  
Doped Graphene

Nitrogen and phosphorus dual-doped graphene oxide was prepared by directly calcining a mixture of pure graphene oxide, urea (nitrogen source), and 1,2-bis(diphenylphosphino)methane (phosphorous source). The morphology and composition of the obtained dual-doped graphene oxide were confirmed by SEM, TEM, XRD pattern, Raman spectrum, and XPS. The nitrogen and phosphorous dual-doped graphene oxide was tested as an anode material of lithium-ion batteries (LIBs). The cycle and rate performance of the dual-doped graphene oxide were also examined. The dualdoped graphene oxide exhibited a superior initial discharge capacity of 2796 mAh·g−1 and excellent reversible capacity of 1200 mAh·g−1 at a current density of 100 mA·g−1 after 200 charge/discharge cycles, suggesting that the dual-doping of nitrogen and phosphorous is an effective way to enhance lithium-ion storage for graphene oxide.

scholarly journals Easy preparation of SnO2@carbon composite nanofibers with improved lithium ion storage properties

2010 ◽  
Vol 25 (8) ◽  
pp. 1516-1524 ◽  
Author(s):  
Zunxian Yang ◽  
Guodong Du ◽  
Zaiping Guo ◽  
Xuebin Yu ◽  
Zhixin Chen ◽  
...  
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Reversible Capacity ◽  
Carbon Composite ◽  
Constant Current ◽  
Thermal Treatments ◽  
Ion Storage ◽  
Potential Use

SnO2@carbon nanofibers were synthesized by a combination of electrospinning and subsequent thermal treatments in air and then in argon to demonstrate their potential use as an anode material in lithium ion battery applications. The as-prepared SnO2@carbon nanofibers consist of SnO2 nanoparticles/nanocrystals encapsulated in a carbon matrix and contain many mesopores. Because of the charge pathways, both for the electrons and the lithium ions, and the buffering function provided by both the carbon encapsulating the SnO2 nanoparticles and the mesopores, which tends to alleviate the volumetric effects during the charge/discharge cycles, the nanofibers display a greatly improved reversible capacity of 420 mAh/g after 100 cycles at a constant current of 100 mA/g, and a sharply enhanced reversible capacity at higher rates (0.5, 1, and 2 C) compared with pure SnO2 nanofibers, which makes it a promising anode material for lithium ion batteries.

Synthesis of nanoparticle-assembled Zn3(VO4)2 porous networks via a facile coprecipitation method for high-rate and long-life lithium-ion storage

2020 ◽  
Vol 49 (7) ◽  
pp. 2112-2120 ◽  
Author(s):  
Yuanxiang Gu ◽  
Yingjie Han ◽  
Wenqi Hou ◽  
Huixia Lan ◽  
Heng Zhang ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
High Reversible Capacity ◽  
Porous Networks ◽  
Ion Storage ◽  
Long Life ◽  
Good Cycling Stability

Nanoparticle-assembled Zn3(VO4)2 porous networks exhibited excellent electrochemical properties, including high reversible capacity, good cycling stability and excellent rate capability.

Synthesis of an indium oxide nanoparticle embedded graphene three-dimensional architecture for enhanced lithium-ion storage

2015 ◽  
Vol 3 (35) ◽  
pp. 18238-18243 ◽  
Author(s):  
Si Qin ◽  
Dan Liu ◽  
Weiwei Lei ◽  
Ying Chen
Keyword(s):  
Three Dimensional ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
High Rate Capability ◽  
High Reversible Capacity ◽  
Ion Storage ◽  
3D Architecture ◽  
Oxide Nanoparticle

An In2O3 nanoparticle embedded graphene 3D architecture exhibits high reversible capacity and high rate capability as an anode material for lithium-ion batteries.

FeCl3intercalated few-layer graphene for high lithium-ion storage performance

2015 ◽  
Vol 3 (30) ◽  
pp. 15498-15504 ◽  
Author(s):  
Xin Qi ◽  
Jin Qu ◽  
Hao-Bin Zhang ◽  
Dongzhi Yang ◽  
Yunhua Yu ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Reversible Capacity ◽  
Intercalation Compounds ◽  
Graphite Intercalation Compounds ◽  
Layer Graphene ◽  
Storage Performance ◽  
Graphite Intercalation ◽  
Ion Storage ◽  
Few Layer Graphene

FeCl3-FLG prepared from graphite intercalation compounds exhibits a reversible capacity as high as 1002 mA h g−1even after 110 cycles.

Preparation of TiNb6O17 nanospheres as high-performance anode candidates for lithium-ion storage

2019 ◽  
Vol 374 ◽  
pp. 937-946 ◽  
Author(s):  
Yu Yuan ◽  
Haoxiang Yu ◽  
Xing Cheng ◽  
Runtian Zheng ◽  
Tingting Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Lithium Ion ◽  
Ion Storage
Sign in / Sign up

Export Citation Format

Share Document