Sandwiched graphene inserted with graphene-encapsulated yolk–shell γ-Fe2O3 nanoparticles for efficient lithium ion storage

2017 ◽  
Vol 5 (15) ◽  
pp. 7035-7042 ◽  
Author(s):  
Miao Zhang ◽  
Enzuo Liu ◽  
Tingting Cao ◽  
Huayu Wang ◽  
Chunsheng Shi ◽  
...  
Keyword(s):  
Rate Capability ◽  
Lithium Ion ◽  
Fe2o3 Nanoparticles ◽  
Unique Structure ◽  
Ion Storage ◽  
Excellent Stability

YS-γ-Fe2O3@G-GS is fabricated by in situ CVD, whose unique structure is advantageous because it offers excellent stability and superior rate capability for LIBs.

Fast lithium-ion storage of Nb2O5 nanocrystals in situ grown on carbon nanotubes for high-performance asymmetric supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 41179-41185 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Ricky Tjandra ◽  
Xingye Fan ◽  
Xingcheng Xiao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Ion Storage ◽  
Energy And Power Density

Nanocomposites of Nb2O5 NCs in situ grown on CNTs are successfully developed with excellent rate capability, leading to the successful fabrication of asymmetric supercapacitors with high energy and power density and long-term cycling stability.

Contribution of Ultrahigh Electrochemical Performance of NiCo2O4 Nanoneedle-Based Free-Standing Electrode from Functionalized Carbon Cloth

NANO ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. 2050160
Author(s):  
Shi-Wen Wang ◽  
Zhen Li ◽  
Jun-Peng Ni ◽  
Li-Zhen Wang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Sodium Dodecyl ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Mass ◽  
Carbon Cloth ◽  
Free Standing ◽  
Ion Storage

Spinel structure NiCo2O4 suffers from poor electric conductivity and the resulted electrochemical properties in battery/supercapacitor system are still unsatisfied. In this paper, a free-standing electrode based on in-situ growth NiCo2O4 on carbon cloth has been synthesized by a surfactant-assisted solvothermal method (sodium dodecyl sulfate, SDS). The functional carbon cloth substrate makes unexpected contribution to the electrochemical lithium-ion storage. The assembled supercapacitor possesses ultrahigh pseudocapacitive properties with high mass loading. The specific capacitance of 2832[Formula: see text]F[Formula: see text]g[Formula: see text] has been obtained at 1[Formula: see text]A[Formula: see text]g[Formula: see text] current density with maintaining the high rate capability of 1620[Formula: see text]F[Formula: see text]g[Formula: see text] at 20[Formula: see text]A[Formula: see text]g[Formula: see text]. The obtained nanoneedle NiCo2O4/carbon cloth electrode also maintains a specific capacity of 2000[Formula: see text]mA[Formula: see text]h[Formula: see text]g[Formula: see text] at 40[Formula: see text]mA[Formula: see text]g[Formula: see text] and exceptional rate performance (1504[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 400[Formula: see text]mA[Formula: see text]g[Formula: see text] when tested as anode material in lithium ion batteries.

Flexible additive-free CC@TiOxNy@SnS2 nanocomposites with excellent stability and superior rate capability for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Storage Performance ◽  
Excellent Stability

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.

In-situ synthesis of Co1−xS-rGO composite for high-rate lithium-ion storage

2019 ◽  
Vol 833 ◽  
pp. 380-386 ◽  
Author(s):  
Zi Wen ◽  
Zhi Zhu ◽  
Bo Jin ◽  
Huan Li ◽  
Weimin Yao ◽  
...  
Keyword(s):  
Lithium Ion ◽  
In Situ Synthesis ◽  
High Rate ◽  
Ion Storage

Graphene-templated formation of 3D tin-based foams for lithium ion storage applications with a long lifespan

2016 ◽  
Vol 4 (2) ◽  
pp. 362-367 ◽  
Author(s):  
Bin Luo ◽  
Tengfei Qiu ◽  
Long Hao ◽  
Bin Wang ◽  
Meihua Jin ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
3D Graphene ◽  
Pore Structures ◽  
Ion Storage ◽  
Superior Cycling Stability

3D graphene-templated tin-based foams with tunable pore structures and uniform carbon coating have been successfully developed, achieving superior cycling stability and rate capability for lithium ion storage.

In situ grown graphene-encapsulated germanium nanowires for superior lithium-ion storage properties

2013 ◽  
Vol 1 (31) ◽  
pp. 8897 ◽  
Author(s):  
Chao Wang ◽  
Jing Ju ◽  
Yanquan Yang ◽  
Yufeng Tang ◽  
Jianhua Lin ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Germanium Nanowires ◽  
Ion Storage ◽  
Grown Graphene ◽  
Storage Properties

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.

In Situ Synthesis of MoC1–x Nanodot@Carbon Hybrids for Capacitive Lithium-Ion Storage

2019 ◽  
Vol 11 (22) ◽  
pp. 19977-19985 ◽  
Author(s):  
Jie Lin ◽  
Jijian Xu ◽  
Wei Zhao ◽  
Wujie Dong ◽  
Ruizhe Li ◽  
...  
Keyword(s):  
Lithium Ion ◽  
In Situ Synthesis ◽  
Ion Storage
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