Vertically aligned VO<sub>2</sub>(B) nanobelt forest and its three-dimensional structure on oriented graphene for energy storage

Ren, Guofeng; Hoque, Nadim Ferdous; Pan, Xuan; Warzywoda, Juliusz; Fan, Zhaoyang

doi:10.1039/c5ta01900a

Cited by 58 publications

(53 citation statements)

References 56 publications

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“…VO 2 (B) hollow microspheres offered more tolerance to the structure expansion and shrinkage during charging and discharging cycles, which is beneficial for the stability and rate enhancement of battery . VO 2 (B) composites with carbon material (graphene, reduced graphene oxide, graphene quantum dots, carbon fiber cloth, and carbon nanotubes) can enhance effective pathways for electron transport and improve electronic conduction when it is used as electrode material . A recent paper reviewed the application of VO 2 (B) in the application of a secondary lithium battery …”

Section: Hydrothermal Combined Thermal Treatment Synthesis Of Vo2(m)mentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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306

185

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Vanadium dioxide (VO ) is a widely studied inorganic phase change material, which has a reversible phase transition from semiconducting monoclinic to metallic rutile phase at a critical temperature of τ ≈ 68 °C. The abrupt decrease of infrared transmittance in the metallic phase makes VO a potential candidate for thermochromic energy efficient windows to cut down building energy consumption. However, there are three long-standing issues that hindered its application in energy efficient windows: high τ , low luminous transmittance (T ), and undesirable solar modulation ability (ΔT ). Many approaches, including nano-thermochromism, porous films, biomimetic surface reconstruction, gridded structures, antireflective overcoatings, etc, have been proposed to tackle these issues. The first approach-nano-thermochromism-which is to integrate VO nanoparticles in a transparent matrix, outperforms the rest; while the thermochromic performance is determined by particle size, stoichiometry, and crystallinity. A hydrothermal method is the most common method to fabricate high-quality VO nanoparticles, and has its own advantages of large-scale synthesis and precise phase control of VO . This Review focuses on hydrothermal synthesis, physical properties of VO polymorphs, and their transformation to thermochromic VO (M), and discusses the advantages, challenges, and prospects of VO (M) in energy-efficient smart windows application.

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Section: Hydrothermal Combined Thermal Treatment Synthesis Of Vo2(m)mentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

Small

306

185

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“…[77,145,146] For example, a free-standing carbon fiber cloth@VO 2 (B) was fabricated as a high mass-loading cathode of LIBs, and exhibited a good electrochemical performance. [77,145,146] For example, a free-standing carbon fiber cloth@VO 2 (B) was fabricated as a high mass-loading cathode of LIBs, and exhibited a good electrochemical performance.…”

Section: Free-standing Electrodesmentioning

confidence: 99%

Recent Progress in the Applications of Vanadium‐Based Oxides on Energy Storage: from Low‐Dimensional Nanomaterials Synthesis to 3D Micro/Nano‐Structures and Free‐Standing Electrodes Fabrication

Liu

Zhu

Gao

et al. 2017

Advanced Energy Materials

167

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IntroductionWith the economic, science and technology increasing at an amazing speed, energy has become one of the most important issues in the 21 st century. In addition, the supply of fossil With revolutionary electric vehicles and the smart grid fast developing, more advanced energy storage technologies become quite crucial issues. Li-ion batteries (LIBs) and Na-ion batteries (NIBs) are considered as the most promising electrochemical energy storage technologies. Low-dimensional nano-structural electrode materials can greatly increase the specific capacity, but they still suffer from poor cycling and rate performances due to their serious self-aggregations. Constructing 3D structures, such as micro/ nano-structures and free-standing electrodes, is a quite promising method to address the above issues. Such 3D structures can simultaneously avoid the disadvantages of low-dimensional nanomaterials, and preserve their advantages. As one group of promising high-capacity and low-cost electrode materials, vanadium-based oxides have exhibited an quite attractive electrochemical performance for energy storage applications in many novel works. However, their systematic reviews are quite limited, which is disadvantageous to their further development. Herein, this article provides an overview of vanadium-based oxides in the applications of LIBs and NIBs by focusing mainly on the aspect from low-dimensional nanomaterials synthesis to 3D micro/nano-structures and free-standing electrodes fabrication. Moreover, a feasible strategy to controllably fabricate the 3D micro/nano-structure for the whole vanadium-based oxides family is presented. Furthermore, and importantly, a quite promising solution method for the practical commercialized applications of vanadium oxides cathode materials in the future is proposed, i.e., fabricating the "vanadium oxides-based cathode/solid electrolyte/Li metal anode-type" all solid-state secondary-ion batteries.

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“…The perpendicularly EOG growth procedure inside cellulose sheets, is similar to previous reports on graphite or nickel surfaces [30,31]. Briefly, the chamber was pumped down to 1 Â 10 À4 torr and then refilled with CH 4 and H 2 both at a flow rate of 10 sccm to a pressure of 30 torr.…”

Section: Preparation Of Pog/ccp Sheetsmentioning

confidence: 99%

Ultrahigh-rate supercapacitors with large capacitance based on edge oriented graphene coated carbonized cellulous paper as flexible freestanding electrodes

Ren

Zhao

et al. 2016

Journal of Power Sources

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h i g h l i g h t sStackable 3D edge oriented graphene (EOG) based flexible and freestanding electrode. Ultrafast supercapacitor with a characteristic frequency of more than 10 kHz. Very large capacitance of 1.5 mF cm À2 and 1.4 mF cm À2 at 120 Hz and 1 kHz, respectively. a b s t r a c tLarge-capacitance and ultrahigh-rate electrochemical supercapacitors (UECs) with frequency response up to kilohertz (kHz) range are reported using light, thin, and flexible freestanding electrodes. The electrode is formed by perpendicularly edge oriented multilayer graphene/thin-graphite (EOG) sheets grown radially around individual fibers in carbonized cellulous paper (CCP), with cellulous carbonization and EOG deposition implemented in one step. The resulted~10 mm thick EOG/CCP electrode is light and flexible. The oriented porous structure of EOG with large surface area, in conjunction with high conductivity of the electrode, ensures ultrahigh-rate performance of the fabricated cells, with large areal capacitance of 0.59 mF cm À2 and 0.53 mF cm À2 and large phase angle of À83 and À80 at 120 Hz and 1 kHz, respectively. Particularly, the hierarchical EOG/CCP sheet structure allows multiple sheets stacked together for thick electrodes with almost linearly increased areal capacitance while maintaining the volumetric capacitance nearly no degradation, a critical merit for developing practical faraday-scale UECs. 3-layers of EOG/CCP electrode achieved an areal capacitance of 1.5 mF cm À2 and 1.4 mF cm À2 at 120 Hz and 1 kHz, respectively. This demonstration moves a step closer to the goal of bridging the frequency/capacitance gap between supercapacitors and electrolytic capacitors.

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Vertically aligned VO₂(B) nanobelt forest and its three-dimensional structure on oriented graphene for energy storage

Abstract: Assembling two-dimensional graphene and VO2(B) nanomaterials into an ordered three-dimensional forest structure for high performance lithium ion batteries.

Cited by 58 publications

References 56 publications

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Recent Progress in the Applications of Vanadium‐Based Oxides on Energy Storage: from Low‐Dimensional Nanomaterials Synthesis to 3D Micro/Nano‐Structures and Free‐Standing Electrodes Fabrication

Ultrahigh-rate supercapacitors with large capacitance based on edge oriented graphene coated carbonized cellulous paper as flexible freestanding electrodes

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Vertically aligned VO2(B) nanobelt forest and its three-dimensional structure on oriented graphene for energy storage

Abstract: Assembling two-dimensional graphene and VO2(B) nanomaterials into an ordered three-dimensional forest structure for high performance lithium ion batteries.

Cited by 58 publications

References 56 publications

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Recent Progress in the Applications of Vanadium‐Based Oxides on Energy Storage: from Low‐Dimensional Nanomaterials Synthesis to 3D Micro/Nano‐Structures and Free‐Standing Electrodes Fabrication

Ultrahigh-rate supercapacitors with large capacitance based on edge oriented graphene coated carbonized cellulous paper as flexible freestanding electrodes

Contact Info

Product

Resources

About

Vertically aligned VO₂(B) nanobelt forest and its three-dimensional structure on oriented graphene for energy storage

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows