High energy density titanium doped-vanadium oxide-vertically aligned CNT composite electrodes for supercapacitor applications

Jampani, Prashanth H.; Velikokhatnyi, Oleg I.; Kadakia, Karan; Hong, Dae-Ki; Damle, Sameer S.; Poston, James A.; Manivannan, A.; Kumta, Prashant N.

doi:10.1039/c4ta06777k

Cited by 66 publications

(32 citation statements)

References 128 publications

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“…4,5 Ever since their discovery, because of the special structural, mechanical, electronic and fast electron transfer properties, CNTs have gained substantial attention in electronic applications. [8][9][10][11][12] However, only a few studies have reported on glucose sensors based on Co 3 O 4 . [9][10][11][12][13][14][15][16] Generally these metal oxide based sensors directly electrooxidise the glucose mediated by M 2+ /M 3+ (M = metal) in alkaline medium.…”

Section: Introductionmentioning

confidence: 99%

Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Prasad

Bhat

2015

New J. Chem.

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Self-assembled cobalt oxide-multiwalled carbon nanotube composites were synthesized by simple and effective wet chemical routes. Using these materials, a modified glassy carbon electrode was fabricated and investigated for enzyme-free glucose sensor applications. The fabricated sensor exhibited a high sensitivity of 5089.1 mA mM À1 cm À2 with a detection limit of 10.42 mM over a glucose concentration ranging from 0.05 to 12 mM. The sensor also shows promising sensor features like stability, selectivity and fast detection.Moreover, the detection of glucose in human blood serum samples with the as-developed sensor agreed well with the results obtained from commercial glucose meters.

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Section: Introductionmentioning

confidence: 99%

Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Prasad

Bhat

2015

New J. Chem.

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“…But among such energy storage systems electrochemical capacitors or supercapacitors have drawn attention as one of the most promising energy storage systems because of their high power density, short charging time and long life span although having moderate energy density 10-15 mWh/g which is still very less compared to batteries. Different research groups in the world are trying to improve the energy density and overall life span of the device by suitably choosing different electrode materials [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Oxide-Based Nano-materials for Energy Storage Application

Ray¹,

Roy²,

Saha³

et al. 2019

Science, Technology and Advanced Application of Supercapacitors

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With improvement of global economy, the fatigue of energy becomes inevitable in twenty-first century. It is expected that the increase of world energy requirements will be triple at the end of this century. Thus, there is an imperative need for development of renewable energy sources and storage systems. Among various energy storage systems, supercapacitors are ascertained one of the most significant storage devices. But the development of supercapacitor devices with high power and energy density are the greatest challenges for modern research. In this article, transition metal oxides such as TiO 2-V 2 O 5 , NiMn 2 O 4 etc. with porous structure are considered as high performance supercapacitors electrode. The effects of its structural, morphological and electrochemical properties have been studied extensively. A TiO 2-V 2 O 5 and NiMn 2 O 4 based electrode delivered specific capacitance of 310 and 875 F g À1 , respectively at a scan rate 2 mV s À1. This TiO 2-V 2 O 5 based asymmetric supercapacitor also exhibits excellent device performance with specific energy 20.18 W h kg À1 at specific power 5.94 kW kg À1 , and retained 88.0% specific capacitance at current density of 10 A g À1 after 5000 cycles.

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“…Many mixed valence VO x have been discovered for pseudocapacitors, such as V 2 O 3 / rGO/VO 2 , [199] V 2 O 3 /VO 2 @C, [200] hydrated VO x (2 < x < 2.5), [201] hydrated V 6 O 13 /V 2 O 5 , [202] VO x (1.5 < x < 2.5), [203] and Ti-doped VO x (2 < x < 2.5). [204] However, it was difficult to tell what the influence of different oxidation states is.…”

Section: Vanadium Oxide Nanocomposites In Pseudocapacitorsmentioning

confidence: 99%

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

Liu

Tang

et al. 2017

Advanced Energy Materials

220

127

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Vanadium oxides are known for their multioxidation states and diverse crystalline structures. Owing to their excellent interactions with molecules or ions, outstanding catalytic activities, and/or strong electron–electron correlations, nanostructured vanadium oxides have been extensively studied for energy conversion in the recent years. Here is a review of the recent advances in the development of nanostructured vanadium oxides and their applications. The synthesis strategies and structural properties of various vanadium oxide nanostructures, including vanadium dioxide (VO2), vanadium pentoxide (V2O5), and others, are summarized. The applications of vanadium oxides in energy conversion are discussed, focusing on three important types of energy sources: chemical energy (LIBs, pseudocapacitors and fuel cells), solar energy (photovoltaics and photocatalytic hydrogen evolutions), and heat (thermoelectric generation). Finally, conclusion with our remarks on the prospects of nanostructured vanadium oxides in energy conversion are provided.

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High energy density titanium doped-vanadium oxide-vertically aligned CNT composite electrodes for supercapacitor applications

Abstract: In this study, we provide the first report on the supercapacitance behavior of titanium doped vanadium oxide films grown on vertically aligned carbon nanotubes using a chemical vapor deposition (CVD) technique.

Cited by 66 publications

References 128 publications

Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Transition Metal Oxide-Based Nano-materials for Energy Storage Application

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

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High energy density titanium doped-vanadium oxide-vertically aligned CNT composite electrodes for supercapacitor applications

Abstract: In this study, we provide the first report on the supercapacitance behavior of titanium doped vanadium oxide films grown on vertically aligned carbon nanotubes using a chemical vapor deposition (CVD) technique.

Cited by 66 publications

References 128 publications

Self-assembly synthesis of Co3O4/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Self-assembly synthesis of Co3O4/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Transition Metal Oxide-Based Nano-materials for Energy Storage Application

Recent Advances in Nanostructured Vanadium Oxides and Composites for Energy Conversion

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Product

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Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor

Self-assembly synthesis of Co₃O₄/multiwalled carbon nanotube composites: an efficient enzyme-free glucose sensor