Chitosan-Assisted Assembly of Sub-10 nm Nanocrystals into Mesoporous TiO2 Fibers with High-Aspect-Ratio for Improved Lithium-Ion Storage

2015 ◽  
Vol 180 ◽  
pp. 658-665 ◽  
Author(s):  
Yunpeng Zong ◽  
Yong Liu ◽  
Wenxia Zhao ◽  
Hao Zhang ◽  
Baojun Li ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Ion Storage

Enhanced lithium-ion storage performance from high aspect ratio Mn3O4 nanowires

2015 ◽  
Vol 159 ◽  
pp. 182-184 ◽  
Author(s):  
Da-wei Yu ◽  
Yue-long Hou ◽  
Xu Han ◽  
Xiu-juan Zheng ◽  
Shi-jun Yu ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Lithium Ion ◽  
Storage Performance ◽  
Ion Storage

Mesoporous TiO2–B microflowers composed of (1 1̄ 0) facet-exposed nanosheets for fast reversible lithium-ion storage

2013 ◽  
Vol 1 (39) ◽  
pp. 12028 ◽  
Author(s):  
Vinodkumar Etacheri ◽  
Yenting Kuo ◽  
Anton Van der Ven ◽  
Bart M. Bartlett
Keyword(s):  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
Ion Storage

Mesoporous Fe2O3 flakes of high aspect ratio encased within thin carbon skeleton for superior lithium-ion battery anodes

2015 ◽  
Vol 3 (27) ◽  
pp. 14178-14187 ◽  
Author(s):  
Junhua Wang ◽  
Mingxia Gao ◽  
Hongge Pan ◽  
Yongfeng Liu ◽  
Ze Zhang ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Electrochemical Properties ◽  
Lithium Ion Battery ◽  
High Aspect Ratio ◽  
Volume Expansion ◽  
Lithium Ion ◽  
Carbon Skeleton ◽  
Thin Carbon

Mesoporous Fe2O3 flakes encased within a thin carbon skeleton were fabricated. The unique architecture of the flakes accommodates the volume expansion of Fe2O3 during lithiation, offering excellent electrochemical properties.

Synthesis of high aspect ratio CuO submicron rods through oriented attachment and their application in lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 49968-49972 ◽  
Author(s):  
Hequan Wang ◽  
Yunpeng Zong ◽  
Wenxia Zhao ◽  
Li Sun ◽  
Ling Xin ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Lithium Ion Batteries ◽  
High Aspect Ratio ◽  
Lithium Ion ◽  
Building Blocks ◽  
Oriented Attachment

High aspect ratio CuO submicron rods were synthesized via the polymer-assisted oriented attachment of nanocrystal building blocks along with calcination.

High Aspect Ratio Electrospun CuO Nanofibers as Anode Material for Lithium-Ion Batteries with Superior Cycleability

2012 ◽  
Vol 116 (34) ◽  
pp. 18087-18092 ◽  
Author(s):  
Rahul Sahay ◽  
Palaniswamy Suresh Kumar ◽  
Vanchiappan Aravindan ◽  
Jayaraman Sundaramurthy ◽  
Wong Chui Ling ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Aspect Ratio ◽  
Lithium Ion

scholarly journals Versatilely tuned vertical silicon nanowire arrays by cryogenic reactive ion etching as a lithium-ion battery anode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andam Deatama Refino ◽  
Nursidik Yulianto ◽  
Iqbal Syamsu ◽  
Andika Pandu Nugroho ◽  
Naufal Hanif Hawari ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Silicon Nanowire ◽  
Reactive Ion Etching ◽  
Lithium Ion ◽  
Nanowire Arrays ◽  
Chamber Pressure ◽  
Ion Etching ◽  
Si Nanowire ◽  
Silicon Nanowire Arrays

AbstractProduction of high-aspect-ratio silicon (Si) nanowire-based anode for lithium ion batteries is challenging particularly in terms of controlling wire property and geometry to improve the battery performance. This report demonstrates tunable optimization of inductively coupled plasma reactive ion etching (ICP-RIE) at cryogenic temperature to fabricate vertically-aligned silicon nanowire array anodes with high verticality, controllable morphology, and good homogeneity. Three different materials [i.e., photoresist, chromium (Cr), and silicon dioxide (SiO2)] were employed as masks during the subsequent photolithography and cryogenic ICP-RIE processes to investigate their effects on the resulting nanowire structures. Silicon nanowire arrays with a high aspect ratio of up to 22 can be achieved by tuning several etching parameters [i.e., temperature, oxygen/sulfur hexafluoride (O2/SF6) gas mixture ratio, chamber pressure, plasma density, and ion energy]. Higher compressive stress was revealed for longer Si wires by means of Raman spectroscopy. Moreover, an anisotropy of lattice stress was found at the top and sidewall of Si nanowire, indicating compressive and tensile stresses, respectively. From electrochemical characterization, half-cell battery integrating ICP-RIE-based silicon nanowire anode exhibits a capacity of 0.25 mAh cm−2 with 16.67% capacity fading until 20 cycles, which has to be improved for application in future energy storage devices.

Synthesis of snowflake-shaped Co3O4 with a high aspect ratio as a high capacity anode material for lithium ion batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 9689-9699 ◽  
Author(s):  
Bin Wang ◽  
Xiao-Ying Lu ◽  
Yuanyuan Tang
Keyword(s):  
Aspect Ratio ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Aspect Ratio ◽  
High Capacity ◽  
Lithium Ion ◽  
Hydrothermal Route

In this study, snowflake-shaped Co3O4 nanosheets (Co3O4-SF) are successfully fabricated by a facile ammonia-assisted hydrothermal route followed by calcination at 450 °C.

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