Synthesis of CuO nanowalnuts and nanoribbons from aqueous solution and their catalytic and electrochemical properties

Yu, Qing; Huang, Hongwen; Chen, Ru; Wang, Peng; Yang, Hangsheng; Gao, Mingxia; Peng, Xinsheng; Ye, Zhizhen

doi:10.1039/c2nr30135k

Cited by 104 publications

(77 citation statements)

References 46 publications

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“…2,16,[18][19][20][21][22][23][24][25] For instance, Rao and coworkers have synthesized archetype sandwich structured CuO microstructures by the transformation of Cu 2 (OH) 2 CO 3 precursors. 16 Yang and coworkers have obtained CuO nanourchins by the self-oxidation of hierarchical Cu 2 O nanospheres method.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous copper oxide ribbon assembly of free-standing nanoneedles as biosensors for glucose

Sun

Chen

et al. 2015

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Inspired by a sequential hydrolysis-precipitation mechanism, morphology-controllable hierarchical cupric oxide (CuO) nanostructures are facilely fabricated by a green water/ethanol solution-phase transformation of Cu(x)(OH)(2x-2)(SO4) precursors in the absence of any organic capping agents and without annealing treatment in air. Antlerite Cu3(OH)4(SO4) precursors formed in a low volume ratio between water and ethanol can transform into a two-dimensional (2D) hierarchical nanoporous CuO ribbon assembly of free-standing nanoneedle building blocks and hierarchical nanoneedle-aggregated CuO flowers. Brochantite Cu4(OH)6(SO4) precursors formed in a high volume ratio between water and ethanol can transform into hierarchical nanoplate-aggregated CuO nanoribbons and nanoflowers. Such 2D hierarchical nanoporous CuO ribbons serving as a promising electrode material for nonenzymatic glucose detection show high sensitivity, a low detection limit, fast amperometric response and good selectivity. Significantly, this green water-induced precursor-hydrolysis method might be used to control effectively the growth of other metal oxide micro-/nanostructures.

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Section: Introductionmentioning

confidence: 99%

Nanoporous copper oxide ribbon assembly of free-standing nanoneedles as biosensors for glucose

Sun

Chen

et al. 2015

Analyst

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“…CuO interconnected nanosheets were obtained by hydrothermal treatment of Cu(OH) 2 nanorod bundles and cupric oxide with a well-preserved morphological feature of the sisal-like Cu(OH) 2 precursor was formed through thermal treatment. The Cu 2 (OH) 3 NO 3 were converted to CuO porous nanoribbons [25]. The Cu 2 (OH) 2 CO 3 have been used for preparation CuO peanut-shaped nanoribbons [26] and hierarchical sphere-like structures [27].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation photocatalytically active CuO plate-like nanoparticles from brochantite

et al. 2016

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“…2 CuO started to be regarded as a promising semiconductor due to its low cost and abundance, its environmentally friendly nature and its easy preparation in various nanostructure morphologies: wires, 5,6 rods, 7 tubes, 8 spheres, 9 flowers, 10 ribbons, 11 rings, 12 dendrites, 13 and fibers. 14,15 These CuO nanostructures have numerous applications, including gas-sensors, 9,[16][17][18] bio-sensors, [19][20][21] rechargeable ions batteries, 7,22-24 supercapacitors, 10 solar cells, 25,26 memristors, 27 field emitters, [28][29][30] or field effect transistors.…”

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confidence: 99%

Electrical properties of single CuO nanowires for device fabrication: Diodes and field effect transistors

Florica

Costas

Boni

et al. 2015

Applied Physics Letters

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High aspect ratio CuO nanowires are synthesized by a simple and scalable method, thermal oxidation in air. The structural, morphological, optical, and electrical properties of the semiconducting nanowires were studied. Au-Ti/CuO nanowire and Pt/CuO nanowire electrical contacts were investigated. A dominant Schottky mechanism was evidenced in the Au-Ti/CuO nanowire junction and an ohmic behavior was observed for the Pt/CuO nanowire junction. The Pt/CuO nanowire/Pt structure allows the measurements of the intrinsic transport properties of the single CuO nanowires. It was found that an activation mechanism describes the behavior at higher temperatures, while a nearest neighbor hopping transport mechanism is characteristic at low temperatures. This was also confirmed by four-probe resistivity measurements on the single CuO nanowires. By changing the metal/semiconductor interface, devices such as Schottky diodes and field effect transistors based on single CuO p-type nanowire semiconductor channel are obtained. These devices are suitable for being used in various electronic circuits where their size related properties can be exploited. V C 2015 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4921914]In the last years, among the studies on the transition metal oxides nanostructures, 1-4 copper oxide (CuO), a p-type semiconductor with a narrow band gap (1.2 eV in bulk), attracted interest because of its properties. 2 CuO started to be regarded as a promising semiconductor due to its low cost and abundance, its environmentally friendly nature and its easy preparation in various nanostructure morphologies: wires, 5,6 rods, 7 tubes, 8 spheres, 9 flowers, 10 ribbons, 11 rings, 12 dendrites, 13 and fibers. 14,15 These CuO nanostructures have numerous applications, including gas-sensors, 9,16-18 bio-sensors, 19-21 rechargeable ions batteries, 7,22-24 supercapacitors, 10 solar cells, 25,26 memristors, 27 field emitters, 28-30 or field effect transistors. 18,31 Particularly, one dimensional semiconducting nanostructures, such as nanowires or nanotubes, defined by high aspect and large surface to bulk ratios, gained considerable attention due to the potential use in electronic devices. 5,[16][17][18][19][27][28][29][30][31][32][33][34] Up to now, different approaches were used for growing CuO nanowires including wet-chemical methods, electrochemical and hydrothermal routes, as well as thermal and plasma oxidation techniques. 35 In this work, we report on the electrical properties of CuO nanowires, obtained by thermal oxidation in air of copper substrates, 6 these one-dimensional nanostructures being suitable for fabricating devices such as diodes and field effect transistors. In order to contact single CuO nanowires, electron beam lithography (EBL) and focused ion beam induced deposition (FIBID) were employed. Using different metals as electrodes, we modified the metal/semiconductor interface, and therefore, we developed different electronic devices which require either ohmic or blocking contacts or both. We evaluated the domin...

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Synthesis of CuO nanowalnuts and nanoribbons from aqueous solution and their catalytic and electrochemical properties

Cited by 104 publications

References 46 publications

Nanoporous copper oxide ribbon assembly of free-standing nanoneedles as biosensors for glucose

Nanoporous copper oxide ribbon assembly of free-standing nanoneedles as biosensors for glucose

Facile preparation photocatalytically active CuO plate-like nanoparticles from brochantite

Electrical properties of single CuO nanowires for device fabrication: Diodes and field effect transistors

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