Carbon nanotube–ZnO nanocomposite electrodes for supercapacitors

Zhang, Yanping; Sun, Xiaowei; Pan, Likun; Li, Haibo; Sun, Zhenrong; Sun, Chang Q.; Tay, Beng Kang

doi:10.1016/j.ssi.2009.10.001

Cited by 144 publications

(62 citation statements)

References 13 publications

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“…Alternatively, commercially available conductive textile (CT) can be used for such application. [10][11][12][13][14][15] CNTs have attracted the attention of the research community owing to their various excellent electrical, mechanical, chemical, and piezoelectric properties. Therefore, CNTs and their derivatives have considerable potential for future generations of devices due to availability in nanoscale with well-defined structures making them suitable for potential application in nanoscale devices.…”

mentioning

confidence: 99%

A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile

Khan

Edberg

Nur

et al. 2014

Journal of Applied Physics

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In the present work, three junctions were fabricated on textile fabric as an alternative substrate for harvesting piezoelectric potential. First junction was formed on ordinary textile as (textile/multi-walled carbon nanotube film/zinc oxide nanowires (S1: T/CNTs/ZnO NWs)) and the other two were formed on conductive textile with the following layer sequence: conductive textile/zinc oxide nanowires (S2: CT/ZnO NWs) and conductive textile/multi-walled carbon nanotubes film/zinc oxide nanowires (S3: CT/CNTs/ZnO NWs). Piezoelectric potential was harvested by using atomic force microscopy in contact mode for the comparative analysis of the generated piezoelectric potential. ZnO NWs were synthesized by using the aqueous chemical growth method. Surface analysis of the grown nanostructures was performed by using scanning electron microscopy and transmission electron microscopy. The growth orientation and crystalline size were studied by using X-ray diffraction technique. This study reveals that textile as an alternative substrate have many features like cost effective, highly flexible, nontoxic, light weight, soft, recyclable, reproducible, portable, wearable, and washable for nanogenerators fabrication with acceptable performance and with a wide choice of modification for obtaining large amount of piezoelectric potential

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mentioning

confidence: 99%

A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile

Khan

Edberg

Nur

et al. 2014

Journal of Applied Physics

View full text Add to dashboard Cite

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“…87 Another group has developed ZnO/ CNT electrochemical capacitor cells that achieved a high capacitance of 324 F/g. 90 The study showed that the capacitance of CNT-ZnO is higher than that of pure CNT cells in 1 M KCl aqueous electrolyte. The presence of ZnO is the main cause in the increase of the total capacitance as the redox reactions occur on the composite electrode/electrolyte interface through the electrochemical conversion of Zn 2þ to other valence states.…”

Section: Zinc Oxide (Zno)-based Compositesmentioning

confidence: 95%

A Review of Metal Oxide Composite Electrode Materials for Electrochemical Capacitors

Khiew

Isa

et al. 2014

NANO

152

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With the emerging technology in the 21st century, which requires higher electrochemical performances, metal oxide composite electrodes in particular o®er complementary properties of individual materials via the incorporation of both physical and chemical charge storage mechanism together in a single electrode. Numerous works reviewed herein have identi¯ed a wide variety of attractive metal oxide-based composite electrode material for symmetric and asymmetric electrochemical capacitors. The focus of the review is the detailed literature data and discussion regarding the electrochemical performance of various metal oxide composite electrodes fabricated from di®erent con¯gurations including binary and ternary composites. Additionally, projection of future development in hybrid capacitor coupling lithium metal oxides and carbonaceous materials are found to obtain signi¯cantly higher energy storage than currently available commercial electrochemical capacitors. This review describes the novel concept of lithium metal oxide electrode materials which are of value to researchers in developing high-energy and 1430002-1 NANO: Brief Reports and Reviews Vol. 9, No. 6 (2014) enhanced-cyclability electrochemical capacitors comparable to Li-ion batteries. In order to fully exploit the potential of metal oxide composite electrode materials, developing low cost, environment-friendly nanocomposite electrodes is certainly a research direction that should be extensively investigated in the future.

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“…Unfortunately, the applicability of ZnO remains limited by its low rate capability and poor reusability during cycling, because of slow faradic redox kinetics or electron transport capability at high rates by high resistivity, in the process of developing ZnO as a promising electrode material for supercapacitor applications [69][70][71]. Therefore, the combination of the faradaic capacitance of the metal oxide and the double layer capacitance of the carbon materials, with large specific surface areas, improved the capacitance and energy/power capabilities [50,72].…”

Section: Zno/cnfcsmentioning

confidence: 99%

Electrospun Metal Oxide/Carbon Nanofiber Composite Electrode for Supercapacitor Application

Yang¹,

Kim

2015

Applied Chemistry for Engineering

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The hybridization of carbon nano-materials enhances the efficiency of each function of the resulting structure or composites. Also, the addition of non-carbon elements to nanomaterials modifies the electrochemical properties. Electrodes combining porous carbon nanofibers (CNFs) and metal oxides benefit from the combination of the double-layer capacitance of the CNFs and the pseudocapacitive character associated with the surface redox-type reactions. Consequently, they demonstrate superior supercapacitor performance in terms of high capacitance, high energy/power efficiency and high rate capability. This paper presents a comprehensive review of the latest advances made in the development and application of various metal oxide/CNF composites (CNFCs) to supercapacitor electrodes.

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Carbon nanotube–ZnO nanocomposite electrodes for supercapacitors

Cited by 144 publications

References 13 publications

A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile

A novel investigation on carbon nanotube/ZnO, Ag/ZnO and Ag/carbon nanotube/ZnO nanowires junctions for harvesting piezoelectric potential on textile

A Review of Metal Oxide Composite Electrode Materials for Electrochemical Capacitors

Electrospun Metal Oxide/Carbon Nanofiber Composite Electrode for Supercapacitor Application

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