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Search for "methane" in Full Text gives 63 result(s) in Beilstein Journal of Nanotechnology.

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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  • Chemistry and Biotechnology, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia 10.3762/bjnano.9.235 Abstract Through computational calculations, CuO(001) has been identified as an active surface for methane oxidation. Experimental validation
  • 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
  • adsorption and oxidation. Keywords: catalytic oxidation; copper oxide; density functional theory; methane; Introduction Methane (CH4), as the main component of natural gas, offers significant environmental advantages over conventional gasoline and diesel [1][2][3]. However, its thermal combustion is often
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Published 24 Sep 2018

The inhibition effect of water on the purification of natural gas with nanoporous graphene membranes

  • Krzysztof Nieszporek,
  • Tomasz Pańczyk and
  • Jolanta Nieszporek

Beilstein J. Nanotechnol. 2018, 9, 1906–1916, doi:10.3762/bjnano.9.182

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  • interesting review on carbon- and nitrogen-based materials [10]. Hauser and Schwerdtfeger [11] studied theoretically the ability of functionalized graphene nanopores to separate methane from air. Recently, Guerrero-Avilés and Orellana performed ab initio MD simulations to study the interactions between
  • nitrogen atom located in the nanopore rim). Results and Discussion Molecules can migrate through the nanopores from the retentate to the permeate area. The observed number of molecules passing across the pores is different for methane and nitrogen because of different kinetic properties of the gases as
  • . It can be seen that the presence of water in the retentate area does not visibly affect the number of methane and nitrogen molecules passing through the HH nanopore. This is because the nanopore includes only hydrogen atoms, which are weak hydrogen bond (HB) donors in this system. Thus, the water
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Published 02 Jul 2018

Synthesis of carbon nanowalls from a single-source metal-organic precursor

  • André Giese,
  • Sebastian Schipporeit,
  • Volker Buck and
  • Nicolas Wöhrl

Beilstein J. Nanotechnol. 2018, 9, 1895–1905, doi:10.3762/bjnano.9.181

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  • CNW deposition in literature gaseous precursors have been used as carbon source. Gases used are typically methane (CH4), acetylene (C2H2) and hexafluoroethane (C2F6) mixed with argon or hydrogen as carrier gas. The synthesis from the solid metal-organic precursor Al(acac)3 was up to now only reported
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Published 29 Jun 2018

Understanding the performance and mechanism of Mg-containing oxides as support catalysts in the thermal dry reforming of methane

  • Nor Fazila Khairudin,
  • Mohd Farid Fahmi Sukri,
  • Mehrnoush Khavarian and
  • Abdul Rahman Mohamed

Beilstein J. Nanotechnol. 2018, 9, 1162–1183, doi:10.3762/bjnano.9.108

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  • Nor Fazila Khairudin Mohd Farid Fahmi Sukri Mehrnoush Khavarian Abdul Rahman Mohamed School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia 10.3762/bjnano.9.108 Abstract Dry reforming of methane (DRM) is one of the more promising methods for syngas
  • (synthetic gas) production and co-utilization of methane and carbon dioxide, which are the main greenhouse gases. Magnesium is commonly applied in a Ni-based catalyst in DRM to improve catalyst performance and inhibit carbon deposition. The aim of this review is to gain better insight into recent
  • conditions, influence the dry reforming reactions and product yields. In this review, different strategies for enhancing catalytic activity and the effect of metal dispersion on Mg-containing oxide catalysts are highlighted. Keywords: carbon formation; catalyst development; dry reforming of methane
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Published 13 Apr 2018

Electron-driven and thermal chemistry during water-assisted purification of platinum nanomaterials generated by electron beam induced deposition

  • Ziyan Warneke,
  • Markus Rohdenburg,
  • Jonas Warneke,
  • Janina Kopyra and
  • Petra Swiderek

Beilstein J. Nanotechnol. 2018, 9, 77–90, doi:10.3762/bjnano.9.10

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  • at 150 K and 210 K, respectively. We note that at temperatures between 250 K and 350 K slightly increased intensities of the methane signals were detected. These amounts are, however, negligible in comparison to reaction products formed under electron irradiation, as shown in the following. Electron
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Published 08 Jan 2018

Review on optofluidic microreactors for artificial photosynthesis

  • Xiaowen Huang,
  • Jianchun Wang,
  • Tenghao Li,
  • Jianmei Wang,
  • Min Xu,
  • Weixing Yu,
  • Abdel El Abed and
  • Xuming Zhang

Beilstein J. Nanotechnol. 2018, 9, 30–41, doi:10.3762/bjnano.9.5

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  • or methane [45][46]. Additionally, with the consumption of CO2, APS possibly provides a solution to the greenhouse effect and global warming. Unlike human beings, plants have no need to use CO2 as a clean fuel or for to reduce the greenhouse effect. They simply “consume” CO2 to produce carbohydrates
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Published 04 Jan 2018

One-step chemical vapor deposition synthesis and supercapacitor performance of nitrogen-doped porous carbon–carbon nanotube hybrids

  • Egor V. Lobiak,
  • Lyubov G. Bulusheva,
  • Ekaterina O. Fedorovskaya,
  • Yury V. Shubin,
  • Pavel E. Plyusnin,
  • Pierre Lonchambon,
  • Boris V. Senkovskiy,
  • Zinfer R. Ismagilov,
  • Emmanuel Flahaut and
  • Alexander V. Okotrub

Beilstein J. Nanotechnol. 2017, 8, 2669–2679, doi:10.3762/bjnano.8.267

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  • and porous carbon on the surface of MgO impregnated with bimetallic (transition metal/molybdenum) catalyst precursors. Acetonitrile was added to the methane feedstock to incorporate nitrogen into the graphitic network, which is beneficial for the electrochemical performance of the carbon materials [21
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Published 12 Dec 2017

Hydrothermal synthesis of ZnO quantum dot/KNb3O8 nanosheet photocatalysts for reducing carbon dioxide to methanol

  • Xiao Shao,
  • Weiyue Xin and
  • Xiaohong Yin

Beilstein J. Nanotechnol. 2017, 8, 2264–2270, doi:10.3762/bjnano.8.226

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  • , similar to what occurs in natural photosynthesis. Until now, the organics produced by such artificial photosynthesis include methane [2], formaldehyde [3], methanol [4], methyl formate [5], among others. Alkaline niobates, which are great potential photocatalysts, have been developed in virtue of their
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Published 30 Oct 2017

A systematic study of the controlled generation of crystalline iron oxide nanoparticles on graphene using a chemical etching process

  • Peter Krauß,
  • Jörg Engstler and
  • Jörg J. Schneider

Beilstein J. Nanotechnol. 2017, 8, 2017–2025, doi:10.3762/bjnano.8.202

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  • residue can be ruled out, thus replacing the need for further post-processing of graphene. Results and Discussion Graphene was synthesized by CVD on a copper substrate using methane. For the copper substrate etching process used to isolate the graphene, we used an encircling polymer frame made of standard
  • irregular CNTs with random areas of vertically aligned carbon nanotubes. Experimental Synthesis of graphene Graphene was synthesized by chemical vapor deposition of methane (Air Liquide) on copper foil (Alfa Aesar, 99.8% purity, 0.025 mm thickness) at 1000 °C and 5 mbar in a hydrogen atmosphere (Air Liquide
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Published 26 Sep 2017

Investigation of growth dynamics of carbon nanotubes

  • Marianna V. Kharlamova

Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85

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  • carbon and active catalyst in the system. A carbide cycle mechanism was proven for the growth of carbon filaments by the decomposition of different hydrocarbons (methane, butane, propylene, isobutylene, butadiene, benzene) on iron catalyst [75]. Other authors also reported the formation of intermediate
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Published 11 Apr 2017

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

  • Arpita Jana,
  • Elke Scheer and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

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Published 24 Mar 2017

Gas sensing properties of MWCNT layers electrochemically decorated with Au and Pd nanoparticles

  • Elena Dilonardo,
  • Michele Penza,
  • Marco Alvisi,
  • Riccardo Rossi,
  • Gennaro Cassano,
  • Cinzia Di Franco,
  • Francesco Palmisano,
  • Luisa Torsi and
  • Nicola Cioffi

Beilstein J. Nanotechnol. 2017, 8, 592–603, doi:10.3762/bjnano.8.64

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  • . Pd-functionalized MWCNTs have been shown to be highly sensitive to the other tested reducing gases, such as NH3 and C4H10. It is well known that Pd-modified CNTs are sensitive detectors for hydrogen and methane gases [51][52][53]. Therefore, the same proposed sensing mechanism can be extended, in
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Published 10 Mar 2017

Nitrogen-doped twisted graphene grown on copper by atmospheric pressure CVD from a decane precursor

  • Ivan V. Komissarov,
  • Nikolai G. Kovalchuk,
  • Vladimir A. Labunov,
  • Ksenia V. Girel,
  • Olga V. Korolik,
  • Mikhail S. Tivanov,
  • Algirdas Lazauskas,
  • Mindaugas Andrulevičius,
  • Tomas Tamulevičius,
  • Viktoras Grigaliūnas,
  • Šarunas Meškinis,
  • Sigitas Tamulevičius and
  • Serghej L. Prischepa

Beilstein J. Nanotechnol. 2017, 8, 145–158, doi:10.3762/bjnano.8.15

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  • obtain large area and high quality graphene [12]. Moreover, TG may be grown at ambient pressure applying atmospheric pressure CVD (APCVD) [10]. The use of different hydrocarbon sources to explore the growth mechanism and properties of TG is a hot topic nowadays. Generally, methane (CH4) is the most
  • ), a member of the homologous series of alkane hydrocarbons. n-Decane has a molecular mass approximately one order of magnitude greater than that of methane, which influences the growth kinetics of graphene. As a representative n-alkane, n-decane forms chains of radicals with a high reactive nature
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Published 16 Jan 2017

Photo-ignition process of multiwall carbon nanotubes and ferrocene by continuous wave Xe lamp illumination

  • Paolo Visconti,
  • Patrizio Primiceri,
  • Daniele Longo,
  • Luciano Strafella,
  • Paolo Carlucci,
  • Mauro Lomascolo,
  • Arianna Cretì and
  • Giuseppe Mele

Beilstein J. Nanotechnol. 2017, 8, 134–144, doi:10.3762/bjnano.8.14

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  • processes. This innovative research field was recently developed in [25][26]. In more detail, the photo-induced ignition of MWCNTs containing ferrocene metal nanoparticles by using a Xe flash lamp was used to photo-ignite gaseous methane/air mixtures. This resulted in a more rapid and homogeneous combustion
  • compared to ignition triggered by a traditional spark plug. In their work, the authors used 20 mg samples of MWCNTs containing 75 wt % ferrocene as ignition agents, and then added this to the methane/air gaseous mixture. The experimental results showed that the photo-induced ignition of a gaseous fuel
  • mixture triggered by MWCNTs determines a higher combustion pressure gradient and a higher peak pressure with respect to spark-induced ignition for all the tested methane/air ratios. In addition, the high-speed camera images showed that the light-induced ignition using MWCNT/ferrocene mixtures as ignition
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Published 13 Jan 2017

Sensitive detection of hydrocarbon gases using electrochemically Pd-modified ZnO chemiresistors

  • Elena Dilonardo,
  • Michele Penza,
  • Marco Alvisi,
  • Gennaro Cassano,
  • Cinzia Di Franco,
  • Francesco Palmisano,
  • Luisa Torsi and
  • Nicola Cioffi

Beilstein J. Nanotechnol. 2017, 8, 82–90, doi:10.3762/bjnano.8.9

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  • and concern various industrial activities, mostly related to production, treatment, storage and combustion of fossil fuel. The natural sources produce a much smaller variety of HC species, indeed the major emitted HC gas is methane [1]. Therefore, it is clear that the detection and monitoring of
  • Pd catalyst on the performance of ZnO-based gas sensors was investigated by the comparison of the gas sensing results of pristine and Pd-modified ZnO NRs, at an operating temperature of 300 °C, towards methane (CH4), propane (C3H8) and butane (C4H10) at a wide range of gas concentrations (30–1000 ppm
  • ZnO NRs, the mean sensitivity towards methane (CH4), propane (C3H8) and butane (C4H10) gases at an operating temperature of 300 °C is reported in Figure 6. The mean sensitivity of Pd-modified ZnO NRs is always higher than that of pristine ZnO for all analyzed HC gases. Pd NPs have a positive catalytic
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Published 10 Jan 2017

Nanostructured SnO2–ZnO composite gas sensors for selective detection of carbon monoxide

  • Paul Chesler,
  • Cristian Hornoiu,
  • Susana Mihaiu,
  • Cristina Vladut,
  • Jose Maria Calderon Moreno,
  • Mihai Anastasescu,
  • Carmen Moldovan,
  • Bogdan Firtat,
  • Costin Brasoveanu,
  • George Muscalu,
  • Ion Stan and
  • Mariuca Gartner

Beilstein J. Nanotechnol. 2016, 7, 2045–2056, doi:10.3762/bjnano.7.195

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  • the sol–gel/dip coating method. The sensor cross-response was tested with other hazardous gases, namely methane (CH4), carbon dioxide (CO2) and propane (C3H8); good selectivity was found towards CO over CH4, C3H8 and CO2, so the sensor may be proposed for further development towards indoor
  • selectivity towards CO is S2, at a corresponding optimum working temperature of 210 °C. Its response is approximately 5× higher compared to its response towards CO2, methane and propane. According to these results it can be said that the sensor has a good selectivity to CO. It can be seen from Figure 13 that
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Published 22 Dec 2016

Unraveling the neurotoxicity of titanium dioxide nanoparticles: focusing on molecular mechanisms

  • Bin Song,
  • Yanli Zhang,
  • Jia Liu,
  • Xiaoli Feng,
  • Ting Zhou and
  • Longquan Shao

Beilstein J. Nanotechnol. 2016, 7, 645–654, doi:10.3762/bjnano.7.57

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  • have also verified the role of OS in TiO2 NPs-induced neurotoxicity. Wang et al. [21] found that nasal instillation of TiO2 NPs can lead to histopathological changes in the mouse brain. At the same time, the activity of superoxide dismutase (SOD) was inhibited, methane dicarboxylic aldehyde (MDA
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Published 29 Apr 2016

Synthesis and applications of carbon nanomaterials for energy generation and storage

  • Marco Notarianni,
  • Jinzhang Liu,
  • Kristy Vernon and
  • Nunzio Motta

Beilstein J. Nanotechnol. 2016, 7, 149–196, doi:10.3762/bjnano.7.17

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  • types, as well as the operating temperature [54]. The production of MWNTs typically involves ethylene or acetylene feedstock with an iron, nickel or cobalt catalyst and operating temperatures of 550–750 °C. SWNTs are produced by using methane or ethane feedstock, similar catalysts, and operating
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Published 01 Feb 2016

Surface-site reactivity in small-molecule adsorption: A theoretical study of thiol binding on multi-coordinated gold clusters

  • Elvis C. M. Ting,
  • Tatiana Popa and
  • Irina Paci

Beilstein J. Nanotechnol. 2016, 7, 53–61, doi:10.3762/bjnano.7.6

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  • energetic cost between 0.8 and 1.2 eV. This was consistent with experimental and computational reports of methane adsorption on gold surfaces [78][79]. The importance of dispersive corrections in chemisorbed systems Given the importance of dispersive interactions in the adsorption behavior of methylthiolate
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Published 18 Jan 2016

A single-source precursor route to anisotropic halogen-doped zinc oxide particles as a promising candidate for new transparent conducting oxide materials

  • Daniela Lehr,
  • Markus R. Wagner,
  • Johanna Flock,
  • Julian S. Reparaz,
  • Clivia M. Sotomayor Torres,
  • Alexander Klaiber,
  • Thomas Dekorsy and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2015, 6, 2161–2172, doi:10.3762/bjnano.6.222

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  • ][60][61][62][63]. It is documented that the reaction with water proceeds via the stepwise elimination of methane and the formation of hydroxo zinc species prior to polycondensation affording zinc oxide [55]. The latter process can also be interpreted as the reaction between Hδ+–OH as a Lewis and
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Published 18 Nov 2015

Nitrogen-doped graphene films from chemical vapor deposition of pyridine: influence of process parameters on the electrical and optical properties

  • Andrea Capasso,
  • Theodoros Dikonimos,
  • Francesca Sarto,
  • Alessio Tamburrano,
  • Giovanni De Bellis,
  • Maria Sabrina Sarto,
  • Giuliana Faggio,
  • Angela Malara,
  • Giacomo Messina and
  • Nicola Lisi

Beilstein J. Nanotechnol. 2015, 6, 2028–2038, doi:10.3762/bjnano.6.206

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  • using liquid carbon precursors such as ethanol (instead of hydrocarbon gases, such as methane) because of their effectiveness, safety and low-cost. Pyridine (C5H5N) is a liquid precursor akin to ethanol (C2H5OH). The main difference between the two is that ethanol is generally used to make pristine
  • grown by other carbon precursors (such as methane and ethanol) on commercial copper foils. They are overall uniform and have some darker areas running along parallel stripes, which are graphene grains developed at sites of secondary nucleation induced by the lamination process undergone by the copper
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Published 14 Oct 2015

The role of low-energy electrons in focused electron beam induced deposition: four case studies of representative precursors

  • Rachel M. Thorman,
  • Ragesh Kumar T. P.,
  • D. Howard Fairbrother and
  • Oddur Ingólfsson

Beilstein J. Nanotechnol. 2015, 6, 1904–1926, doi:10.3762/bjnano.6.194

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  • irradiation. The only visible species during electron irradiation are at m/z 15, 16, and 2. These are assigned to CH3+, CH4+, and H2+, with the former two appearing at the ratio observed in electron impact ionization of gas phase methane (CH4). The initial loss of a methyl radical is likely to result from a
  • (IV) (CpPtMe3), which produced a similar mass spectrum during electron irradiation, despite the lack of the methyl group on the Cp ring. The conversion of the dissociated methyl radicals to the methane observed in the mass spectra is less clear as it could arise either from intra- or intermolecular
  • currently available gas phase data, this implies that electron-induced decomposition of surface-adsorbed MeCpPtMe3 is predominantly caused by secondary electrons with incident energy below 1 eV. Interestingly, the cross section for methane desorption from adsorbed MeCpPtMe3 exhibits a qualitatively similar
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Published 16 Sep 2015

Pt- and Pd-decorated MWCNTs for vapour and gas detection at room temperature

  • Hamdi Baccar,
  • Atef Thamri,
  • Pierrick Clément,
  • Eduard Llobet and
  • Adnane Abdelghani

Beilstein J. Nanotechnol. 2015, 6, 919–927, doi:10.3762/bjnano.6.95

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  • application of this concept by producing platinum-decorated carbon nanotubes by means of a wet-chemistry technique [27]. Star et al. electroplated carbon nanotubes with gold, rhodium, palladium or platinum to obtain metal-decorated nanotubes as gas sensors for carbon monoxide, nitrogen dioxide, methane
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Published 09 Apr 2015

Gas sensing properties of nanocrystalline diamond at room temperature

  • Marina Davydova,
  • Pavel Kulha,
  • Alexandr Laposa,
  • Karel Hruska,
  • Pavel Demo and
  • Alexander Kromka

Beilstein J. Nanotechnol. 2014, 5, 2339–2345, doi:10.3762/bjnano.5.243

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  • diamond. In the present study, the hot plasma system with an ellipsoidal, cavity-like reactor was used to grow diamond films under the following conditions: sample temperature, 450 °C; power, 1 kW; gas pressure, 30 mbar; hydrogen and methane flow rates, 300 and 3 sccm (i.e., 1% dilution), respectively
  • substrate and the linear antenna (i.e., 7–10 cm) [11]. An NCD film was grown from hydrogen-rich gas mixtures of methane and carbon dioxide. A microwave pulse of 2 kW was used for each antenna side. A total gas pressure of 0.1 mbar was used and the substrate temperature was kept at 450 °C. Figure 4 shows the
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Published 04 Dec 2014

Cathode lens spectromicroscopy: methodology and applications

  • T. O. Menteş,
  • G. Zamborlini,
  • A. Sala and
  • A. Locatelli

Beilstein J. Nanotechnol. 2014, 5, 1873–1886, doi:10.3762/bjnano.5.198

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  • vapor deposition (CVD) technique. CVD utilizes transition metal catalysts as a means to promote the dissociative adsorption of gases such as ethylene or methane, which can readily deliver the carbon atoms required for island nucleation and growth. LEEM is widely employed to image the growth process; the
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Published 27 Oct 2014
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