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Search for "nanowires" in Full Text gives 324 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Gas sensing properties of individual SnO2 nanowires and SnO2 sol–gel nanocomposites

  • Alexey V. Shaposhnik,
  • Dmitry A. Shaposhnik,
  • Sergey Yu. Turishchev,
  • Olga A. Chuvenkova,
  • Stanislav V. Ryabtsev,
  • Alexey A. Vasiliev,
  • Xavier Vilanova,
  • Francisco Hernandez-Ramirez and
  • Joan R. Morante

Beilstein J. Nanotechnol. 2019, 10, 1380–1390, doi:10.3762/bjnano.10.136

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  • selectivity to target gases. The aim of this work is the comparison of gas sensing properties of tin dioxide in the form of individual nanowires and nanopowders obtained by sol–gel synthesis. This comparison is necessary because the traditional synthesis procedures of small particle, metal oxide materials
  • seem to be approaching their limit. Because of this, there is increasing interest in the fabrication of functional materials based on nanowires, i.e., quasi-one-dimensional objects. In this work, nanocrystalline tin dioxide samples with different morphology were synthesized. The gas-transport method
  • was used for the fabrication of well-faceted wire-like crystals with diameters ranging between 15–100 nm. The sol–gel method allowed us to obtain fragile gels from powders with grain sizes of about 5 nm. By means of X-ray photoelectron spectroscopy (XPS) it was proven that the nanowires contain
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Published 08 Jul 2019

Multicomponent bionanocomposites based on clay nanoarchitectures for electrochemical devices

  • Giulia Lo Dico,
  • Bernd Wicklein,
  • Lorenzo Lisuzzo,
  • Giuseppe Lazzara,
  • Pilar Aranda and
  • Eduardo Ruiz-Hitzky

Beilstein J. Nanotechnol. 2019, 10, 1303–1315, doi:10.3762/bjnano.10.129

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  • nanofillers to ensure the mechanical strength and electrical conductivity of the prepared bionanocomposite films and foams [26]. Moreover, MWCNTs are supposed to act as nanowires improving the contact between the active site of the immobilized enzymes and an electrode surface via direct electron transfer [39
  • (1000–2500 S·m−1 [14][15]). The high in-plane conductivity found here can be attributed to a synergic effect of MWCNTs and the lamellar assembly of graphene nanoplatelets in the plane of the film as observed by SEM (see Figure 3F). The MWCNTs act as nanowires connecting the GNPs, which facilitates the
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Published 25 Jun 2019

Green fabrication of lanthanide-doped hydroxide-based phosphors: Y(OH)3:Eu3+ nanoparticles for white light generation

  • Tugrul Guner,
  • Anilcan Kus,
  • Mehmet Ozcan,
  • Aziz Genc,
  • Hasan Sahin and
  • Mustafa M. Demir

Beilstein J. Nanotechnol. 2019, 10, 1200–1210, doi:10.3762/bjnano.10.119

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  • nanowires. The level of doping for Y(OH)3:7.5% Eu3+ phosphors produced at 5 min was captured through an annular dark field (ADF) STEM micrograph and the STEM-EELS analysis of the indicated area is presented in Figure 3. Elemental composition maps of Y (red) and Eu (green) along with their composites are
  • ≈10 nm thick nanowires. Annular dark field (ADF) STEM micrograph of an agglomerate of nanoparticles synthesized at 5 min with 7.5% doping ratio. STEM-EELS elemental composition maps of the area indicated with a white rectangle: Y (in red) and Eu (in green) maps along with their composite image. (a
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Published 07 Jun 2019

Pure and mixed ordered monolayers of tetracyano-2,6-naphthoquinodimethane and hexathiapentacene on the Ag(100) surface

  • Robert Harbers,
  • Timo Heepenstrick,
  • Dmitrii F. Perepichka and
  • Moritz Sokolowski

Beilstein J. Nanotechnol. 2019, 10, 1188–1199, doi:10.3762/bjnano.10.118

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  • ]. These authors [20][21] also noted that HTPEN is a one-dimensional semiconductor when it is synthesized in the form of nanowires. These nanowires exhibit a molecular structure similar to that of the bulk crystal with the primary growth direction along the [100] direction. These wires are considered to
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Published 06 Jun 2019

Electroluminescence and current–voltage measurements of single-(In,Ga)N/GaN-nanowire light-emitting diodes in a nanowire ensemble

  • David van Treeck,
  • Johannes Ledig,
  • Gregor Scholz,
  • Jonas Lähnemann,
  • Mattia Musolino,
  • Abbes Tahraoui,
  • Oliver Brandt,
  • Andreas Waag,
  • Henning Riechert and
  • Lutz Geelhaar

Beilstein J. Nanotechnol. 2019, 10, 1177–1187, doi:10.3762/bjnano.10.117

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  • ensemble is mandatory. In order to characterize NW-ensemble LEDs in depth, a combined analysis of the emission and transport behavior of single NWs under electrical carrier injection is needed. One way to do such a combined analysis is to remove the nanowires from the ensemble, disperse them on a substrate
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Published 05 Jun 2019

Photoactive nanoarchitectures based on clays incorporating TiO2 and ZnO nanoparticles

  • Eduardo Ruiz-Hitzky,
  • Pilar Aranda,
  • Marwa Akkari,
  • Nithima Khaorapapong and
  • Makoto Ogawa

Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114

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  • reactivity can be modified [48][49]. TiO2 and ZnO NPs with different shapes, sizes and exposed crystal facets were assembled to yield hollow particles, fibers, nanosheets, nanowires, nanorods, nanoflowers and nanobelts through various synthesis routes including template synthesis [50][51][52][53
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Published 31 May 2019

Tailoring the stability/aggregation of one-dimensional TiO2(B)/titanate nanowires using surfactants

  • Atiđa Selmani,
  • Johannes Lützenkirchen,
  • Kristina Kučanda,
  • Dario Dabić,
  • Engelbert Redel,
  • Ida Delač Marion,
  • Damir Kralj,
  • Darija Domazet Jurašin and
  • Maja Dutour Sikirić

Beilstein J. Nanotechnol. 2019, 10, 1024–1037, doi:10.3762/bjnano.10.103

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  • Zagreb, Croatia 10.3762/bjnano.10.103 Abstract The increased utilization of one-dimensional (1D) TiO2 and titanate nanowires (TNWs) in various applications was the motivation behind studying their stability in this work, given that stability greatly influences both the success of the application and the
  • . Keywords: 1D nanomaterials; cationic surfactants; stability; surface complexation model; titanate nanowires; Introduction Among the extensive variety of metal oxide nanomaterials, titanium dioxide nanomaterials (TNMs) (e.g., anatase, rutile, TiO2(B) and titanate) have attracted considerable attention
  • and in the presence of different additives [12][20][21][22], much less is known about 1D TNMs, such as titanium oxide nanotubes (TNTs), titanium oxide nanowires (TNWs) and titanium oxide nanorods (TNRs). As shown previously, the morphology of TNMs is expected to play a significant role in their
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Published 13 May 2019

Novel reversibly switchable wettability of superhydrophobic–superhydrophilic surfaces induced by charge injection and heating

  • Xiangdong Ye,
  • Junwen Hou and
  • Dongbao Cai

Beilstein J. Nanotechnol. 2019, 10, 840–847, doi:10.3762/bjnano.10.84

Graphical Abstract
  • termed electrowetting [19]. The equilibrium morphology under electrical wetting conditions is determined by the equilibrium of Maxwell stress and Laplace pressure [20][21]. Verplanck et al. [22] reported the reversible electrical wetting of droplets on superhydrophobic silicon nanowires in air and oil
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Published 10 Apr 2019

Features and advantages of flexible silicon nanowires for SERS applications

  • Hrvoje Gebavi,
  • Vlatko Gašparić,
  • Dubravko Risović,
  • Nikola Baran,
  • Paweł Henryk Albrycht and
  • Mile Ivanda

Beilstein J. Nanotechnol. 2019, 10, 725–734, doi:10.3762/bjnano.10.72

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  • flexible silicon nanowires (SiNWs) substrates for surface-enhanced Raman spectroscopy (SERS) applications. The novel SERS substrates are described in detail considering three main aspects. First, the key synthesis parameters for the flexible nanostructure SERS substrates were optimized. It is shown that
  • allowed hot spots occurrence. Finally, the test with 4-mercaptophenylboronic acid showed excellent SERS performance of the flexible, horizontally oriented SiNWs in comparison with several other commercially available substrates. Keywords: flexible hot spots; horizontal silicon nanowires; 4
  • the targeted molecule. The Raman signal of these commercially available substrates exceeds that of competitors [19]. Therefore, these substrates can be considered as one of the top SERS substrates on the market. We have synthesized similar flexible, but horizontally oriented silicon nanowires (SiNWs
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Published 15 Mar 2019

The effect of translation on the binding energy for transition-metal porphyrines adsorbed on Ag(111) surface

  • Luiza Buimaga-Iarinca and
  • Cristian Morari

Beilstein J. Nanotechnol. 2019, 10, 706–717, doi:10.3762/bjnano.10.70

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  • the TM atom. Indeed, with the only exception of NiPP, we have similar magnetic moments for all four adsorption positions. The values are listed in Table 1. Our results are similar to those obtained for porphyrin-based molecular nanowires [66]: The total magnetic moments of TM-PNWs are calculated to be
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Published 13 Mar 2019

A carrier velocity model for electrical detection of gas molecules

  • Ali Hosseingholi Pourasl,
  • Sharifah Hafizah Syed Ariffin,
  • Mohammad Taghi Ahmadi,
  • Razali Ismail and
  • Niayesh Gharaei

Beilstein J. Nanotechnol. 2019, 10, 644–653, doi:10.3762/bjnano.10.64

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  • nanowires and carbon nanotubes, GNRs possess high sensitivity, high electron and hole mobility, chemical stability, low noise, and a large surface-to-volume ratio, properties which are highly desired for gas sensor applications. Electrically, GNRs have shown high sensitivity to their surroundings and
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Published 04 Mar 2019

Gold nanoparticles embedded in a polymer as a 3D-printable dichroic nanocomposite material

  • Lars Kool,
  • Anton Bunschoten,
  • Aldrik H. Velders and
  • Vittorio Saggiomo

Beilstein J. Nanotechnol. 2019, 10, 442–447, doi:10.3762/bjnano.10.43

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  • reflection. The explanation is that, while boiling, the gold nanowires fragment, creating nanoparticles with a large head and a slim and long tail, comparable to a tadpole. Over time the tail starts to shrink, due to intra-particle Ostwald ripening to minimize the total surface energy of the nanoparticle
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Published 12 Feb 2019

Sub-wavelength waveguide properties of 1D and surface-functionalized SnO2 nanostructures of various morphologies

  • Venkataramana Bonu,
  • Binaya Kumar Sahu,
  • Arindam Das,
  • Sankarakumar Amirthapandian,
  • Sandip Dhara and
  • Harish C. Barshilia

Beilstein J. Nanotechnol. 2019, 10, 379–388, doi:10.3762/bjnano.10.37

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  • understanding of the surface defects and role of morphology in 1D SnO2 nanowires can help to better utilize these nanostructures more efficiently. For this purpose, three different nanowires (NWs), namely belts, cylindrical- and square-shaped structures were grown using SnO2 quantum dots as a precursor material
  • measurements and a band diagram is proposed. Keywords: functionalization; nanowires; photoluminescence; SnO2; sub-wavelength waveguide; Introduction The development and understanding of one-dimensional (1D) nanowire (NW) sub-wavelength waveguides is a crucial step towards on-chip routing of optical signals
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Published 07 Feb 2019

Geometrical optimisation of core–shell nanowire arrays for enhanced absorption in thin crystalline silicon heterojunction solar cells

  • Robin Vismara,
  • Olindo Isabella,
  • Andrea Ingenito,
  • Fai Tong Si and
  • Miro Zeman

Beilstein J. Nanotechnol. 2019, 10, 322–331, doi:10.3762/bjnano.10.31

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  • Thin Film Electronic Laboratory (PV-Lab), Rue de la Maladière 71b, 2002 Neuchâtel, Switzerland 10.3762/bjnano.10.31 Abstract Background: Elongated nanostructures, such as nanowires, have attracted significant attention for application in silicon-based solar cells. The high aspect ratio and
  • modelling analysis of the optical performance of the proposed solar cell architecture was also carried out. Results showed that nanowires act as resonators, amplifying interference resonances and exciting additional wave-guided modes. The optimisation of the array geometrical dimensions highlighted a strong
  • illumination conditions, by exciting resonances inside the absorber layer. However, passivation of nanowires is critical to further improve the efficiency of such devices. Keywords: heterojunction; nanowires; optical modelling; photovoltaics; silicon; Introduction The implementation of effective and low-cost
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Published 31 Jan 2019

Electromagnetic analysis of the lasing thresholds of hybrid plasmon modes of a silver tube nanolaser with active core and active shell

  • Denys M. Natarov,
  • Trevor M. Benson and
  • Alexander I. Nosich

Beilstein J. Nanotechnol. 2019, 10, 294–304, doi:10.3762/bjnano.10.28

Graphical Abstract
  • of publications have dealt with the modeling of nanolasers based on metal nanoparticles and nanowires equipped with active cores or shells [4][5][6][7][8][9]. Note that in [4], the authors studied the effect of a metal tube on the lowest-order modes of the active core while the presence of the
  • circular shell. Alternatively, such configurations can be seen as a quantum wire loaded with a plasmonic open resonator. An infinite array of circular quantum nanowires was considered with LEP in [27] where it was shown that such a periodic open active resonator can support so-called lattice modes with
  • ultra-low thresholds and wavelengths located near to the Rayleigh anomalies. A similar LEP-based study of the lasing modes of an infinite binary grating of circular silver and quantum nanowires was published in [14] where the thresholds of the LSP modes were found to be higher than those of the lattice
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Published 28 Jan 2019

Site-specific growth of oriented ZnO nanocrystal arrays

  • Rekha Bai,
  • Dinesh K. Pandya,
  • Sujeet Chaudhary,
  • Veer Dhaka,
  • Vladislav Khayrudinov,
  • Jori Lemettinen,
  • Christoffer Kauppinen and
  • Harri Lipsanen

Beilstein J. Nanotechnol. 2019, 10, 274–280, doi:10.3762/bjnano.10.26

Graphical Abstract
  • morphological structures such as nanorods [5][6][7], nanowires [8], tetrapods [9], nanodisks [10], nanotubes [11], flowers [12], and nanocrystals [13], have been reported. Among the many nanostructured morphologies possible for ZnO, self-assembled ZnO nanocrystals (NCs) have been attracting great attention due
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Published 24 Jan 2019

Sputtering of silicon nanopowders by an argon cluster ion beam

  • Xiaomei Zeng,
  • Vasiliy Pelenovich,
  • Zhenguo Wang,
  • Wenbin Zuo,
  • Sergey Belykh,
  • Alexander Tolstogouzov,
  • Dejun Fu and
  • Xiangheng Xiao

Beilstein J. Nanotechnol. 2019, 10, 135–143, doi:10.3762/bjnano.10.13

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  • nanowires. There are many molecular dynamics simulations using the collision cascade theory and, at the same time, only a few experimental studies on the interaction of monomer and cluster projectiles with nanodimensional systems. Using a MD simulation, Kissel et al. [16] have studied the effect of the
  • been revealed for 80 keV Xe ion irradiation of Au nanowires of 20 nm in diameter and micrometers in length [24][25]. The sputtering yield dependence on the gold particle size under bombardment with 20 keV С60 ions has been studied in [26]. At 9.3 nm the particle diameter the yield was 320, whereas for
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Published 10 Jan 2019

Hydrogen-induced plasticity in nanoporous palladium

  • Markus Gößler,
  • Eva-Maria Steyskal,
  • Markus Stütz,
  • Norbert Enzinger and
  • Roland Würschum

Beilstein J. Nanotechnol. 2018, 9, 3013–3024, doi:10.3762/bjnano.9.280

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  • still plausible in this case, although with a reduced strain amplitude. Lattice reorientations driven by surface stress, suggested by simulations in both pristine [40] and hydrided Pd nanowires [41], could also be indicative for the concept of a surface-stress contribution to the α-phase straining
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Published 10 Dec 2018

Charged particle single nanometre manufacturing

  • Philip D. Prewett,
  • Cornelis W. Hagen,
  • Claudia Lenk,
  • Steve Lenk,
  • Marcus Kaestner,
  • Tzvetan Ivanov,
  • Ahmad Ahmad,
  • Ivo W. Rangelow,
  • Xiaoqing Shi,
  • Stuart A. Boden,
  • Alex P. G. Robinson,
  • Dongxu Yang,
  • Sangeetha Hari,
  • Marijke Scotuzzi and
  • Ejaz Huq

Beilstein J. Nanotechnol. 2018, 9, 2855–2882, doi:10.3762/bjnano.9.266

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  • fabrication of isolated structures, for example by Koops et al. [79], and by Frabboni et al. [80] who attempted to overcome the resolution limit due to the presence of a bulk or thin substrate by growing suspended nanowires by EBID on the tip of a tilted pillar, achieving a lateral resolution of 5 nm. Sub-10
  • common in electrical measurements. Another important application of EBIE demonstrated there was the modification of as-deposited EBID structures to alter their physical or chemical properties. Carbonaceous nanowires of about 24 nm width deposited by EBID were slimmed by repeatedly scanning the field of
  • view containing the deposits in the presence of water. In this manner, nanowires with widths down to 13 nm were achieved, as shown in Figure 12. The specific case of EBIE of SiO2 using XeF2 was studied by Randolph et al. [95] who performed experiments to study the etch rate as a function of beam
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Published 14 Nov 2018

Graphene-enhanced metal oxide gas sensors at room temperature: a review

  • Dongjin Sun,
  • Yifan Luo,
  • Marc Debliquy and
  • Chao Zhang

Beilstein J. Nanotechnol. 2018, 9, 2832–2844, doi:10.3762/bjnano.9.264

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  • components is equal, which accounts for the improved sensing performance to CO at room temperature. Wang et al. [52] mixed ZnO nanowires, prepared via carbothermal reduction, with GO under a protective gas atmosphere (Ar) at 300 °C to synthesize ZnO–rGO hybrids. Although the response to NH3 was not as well
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Published 09 Nov 2018

Controlling surface morphology and sensitivity of granular and porous silver films for surface-enhanced Raman scattering, SERS

  • Sherif Okeil and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2018, 9, 2813–2831, doi:10.3762/bjnano.9.263

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  • ][55][56], and nanotransfer printing, which was used to build stacks of gold nanorods or nanowires [4]. The production of nanoporous metal films or particles through a dealloying process also emerged as an effective tool for the facile formation of a large number of SERS-active hot spots [57][58][59
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Published 07 Nov 2018

Oriented zinc oxide nanorods: A novel saturable absorber for lasers in the near-infrared

  • Pavel Loiko,
  • Tanujjal Bora,
  • Josep Maria Serres,
  • Haohai Yu,
  • Magdalena Aguiló,
  • Francesc Díaz,
  • Uwe Griebner,
  • Valentin Petrov,
  • Xavier Mateos and
  • Joydeep Dutta

Beilstein J. Nanotechnol. 2018, 9, 2730–2740, doi:10.3762/bjnano.9.255

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  • , a lot of attention has been paid to the studies of ZnO nanostructures of various shapes, including oriented nanorods (NRs), nanowires, nanobelts, nanoparticles, etc. for versatile photonic applications [1][2]. ZnO NRs are especially attractive for short-wavelength nano-devices due to their high
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Published 23 Oct 2018

Silencing the second harmonic generation from plasmonic nanodimers: A comprehensive discussion

  • Jérémy Butet,
  • Gabriel D. Bernasconi and
  • Olivier J. F. Martin

Beilstein J. Nanotechnol. 2018, 9, 2674–2683, doi:10.3762/bjnano.9.250

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  • nanowires with various gap sizes. They observed that the SHG does not increase as the gap between the two nanowires decreases, despite an increase of the fundamental field enhancement. Their experimental observations were supported by numerical results demonstrating that the SHG from nanogaps is not
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Published 15 Oct 2018

Impact of the anodization time on the photocatalytic activity of TiO2 nanotubes

  • Jesús A. Díaz-Real,
  • Geyla C. Dubed-Bandomo,
  • Juan Galindo-de-la-Rosa,
  • Luis G. Arriaga,
  • Janet Ledesma-García and
  • Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

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  • synthesis methods resulting in a wide range of morphologies, such as mesoporous structures [4], microtubes [5], microdendrites, nanoparticles [6][7][8], nanorods [9][10], nanotubes [11][12][13], nanowires [14], and nanosheets [15][16]. Standing out from the rest of the synthesis techniques, electrochemical
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Published 04 Oct 2018

Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

  • Qingquan Kong,
  • Yichun Yin,
  • Bing Xue,
  • Yonggang Jin,
  • Wei Feng,
  • Zhi-Gang Chen,
  • Shi Su and
  • Chenghua Sun

Beilstein J. Nanotechnol. 2018, 9, 2526–2532, doi:10.3762/bjnano.9.235

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  • with CuO nanobelts comprised of predominantly (001) surfaces has been performed and it is confirmed that the performance of such nanobelts is much higher than normal nanoparticles and nanowires. First principle calculations further clarified that two-coordinated oxygen plays a key role for methane
  • shows high reactivity due to the high ratio of lowly coordinated oxygen – a feature that has been employed for gas sensing and Li-ion batteries [21]. Now we turn to the experimental validation, starting with the synthesis of CuO nanowires (NWs) and CuO nanobelts (NBs) comprised of predominantly (001
  • are needed to improve the thermal stability of such nanostructures as they tend to aggregate after high temperature treatment. Experimental Synthesis of CuO nanowires and nanobelts For a typical sample, 1 g of Cu(NO3)2 was dissolved in 100 mL distilled water and 30 mL ammonia solution (NH3·H2O, 0.15
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Published 24 Sep 2018
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