Surface passivation and optical characterization of Al₂O₃/a-SiC_x stacks on c-Si substrates

• Gema López,
• Pablo R. Ortega,
• Cristóbal Voz,
• Isidro Martín,
• Mónica Colina,
• Anna B. Morales,
• Albert Orpella and
• Ramón Alcubilla

Beilstein J. Nanotechnol. 2013, 4, 726–731, doi:10.3762/bjnano.4.82

• were subsequently deposited by thermal ALD (Savannah S200, Cambridge Nanotech; Cambridge, MA, USA) at Tdep = 200 °C. This technique is based on sequential, self-limiting chemical reactions at the surface. The surface of the substrate is exposed to the precursor gases in alternating manner. The

Electrochemical and electron microscopic characterization of Super-P based cathodes for Li–O₂ batteries

• Mario Marinaro,
• Santhana K. Eswara Moorthy,
• Jörg Bernhard,
• Ludwig Jörissen,
• Margret Wohlfahrt-Mehrens and
• Ute Kaiser

Beilstein J. Nanotechnol. 2013, 4, 665–670, doi:10.3762/bjnano.4.74

• a stepwise fashion leading to the formation of LiO2 and Li2O2 as shown in the chemical reactions below. Conversely, upon charging, the oxygen evolution reaction (OER) gives O2 and Li+ back via a 2-electrons reaction. The unsuitability of commonly used electrolytes for Li-ion batteries (e.g

Large-scale atomistic and quantum-mechanical simulations of a Nafion membrane: Morphology, proton solvation and charge transport

• Pavel V. Komarov,
• Pavel G. Khalatur and
• Alexei R. Khokhlov

Beilstein J. Nanotechnol. 2013, 4, 567–587, doi:10.3762/bjnano.4.65

• total number of atoms in these systems was limited to about two million because of computer memory and CPU limitations [28]. Significant efforts have been made to take into account quantum effects and chemical reactions within the molecular dynamics models. For this purpose, the so-called Reax force

Continuous parallel ESI-MS analysis of reactions carried out in a bespoke 3D printed device

• Jennifer S. Mathieson,
• Mali H. Rosnes,
• Victor Sans,
• Philip J. Kitson and
• Leroy Cronin

Beilstein J. Nanotechnol. 2013, 4, 285–291, doi:10.3762/bjnano.4.31

• into the device, was used to initiate chemical reactions [6]. We have also presented how 3D printing can be used to make intricate micro- and milliscale reactionware for organic, inorganic and materials syntheses, offering significant freedom to design bespoke reactors in terms of residence time

• ketone (PEEK), which is a harder plastic than PP, allowing for boring into the PP plastic inlet and outlets to give a tight seal to the device. These fittings can be removed and replaced as many times as necessary, and the whole device can be used repeatedly, for a variety of chemical reactions. LabView

• [Cu(C24H24N6)(NO3)]+ (1), m/z 521.1 species see Supporting Information File 1. Conclusion By carrying out a number of complementary supramolecular chemical reactions in bespoke 3D-printed reactionware we have shown their high potential and configurability. The tailored milliscale reactionware, with

Electrospinning preparation and electrical and biological properties of ferrocene/poly(vinylpyrrolidone) composite nanofibers

• Ji-Hong Chai and
• Qing-Sheng Wu

Beilstein J. Nanotechnol. 2013, 4, 189–197, doi:10.3762/bjnano.4.19

• , there are a series of chemical reactions between Fc and the enzymes, DNA and RNA in the cell due to the penetration of Fc, leading to cell death [32]. The Fc conveys many unique properties such as low toxicity, stability, lipophilicity, aromaticity and easy access to one-electron oxidation potential

Functionalization of vertically aligned carbon nanotubes

• Eloise Van Hooijdonk,
• Carla Bittencourt,
• Rony Snyders and
• Jean-François Colomer

Beilstein J. Nanotechnol. 2013, 4, 129–152, doi:10.3762/bjnano.4.14

• the evaporation of the solvent. The product has high optical transparency, robust flexibility and good conductivity. Chen et al. [130] used a radio-frequency glow-discharge treatment and chemical reactions post-treatment to graft polysaccharide chains onto a VA-CNT surface. After functionalization

Plasmonics-based detection of H₂ and CO: discrimination between reducing gases facilitated by material control

• Gnanaprakash Dharmalingam,
• Nicholas A. Joy,
• Benjamin Grisafe and
• Michael A. Carpenter

Beilstein J. Nanotechnol. 2012, 3, 712–721, doi:10.3762/bjnano.3.81

• also likely induce a change in the polarizability of the YSZ matrix, changing the dielectric constant. The shift in the plasmon peak position will therefore be a result of the combined effect of the charge exchange and the change in dielectric properties of the YSZ. Other chemical reactions between H2

Focused electron beam induced deposition: A perspective

• Michael Huth,
• Fabrizio Porrati,
• Christian Schwalb,
• Marcel Winhold,
• Roland Sachser,
• Maja Dukic,
• Jonathan Adams and
• Georg Fantner

Beilstein J. Nanotechnol. 2012, 3, 597–619, doi:10.3762/bjnano.3.70

• precursor fragments, i.e., under the assumption that no secondary chemical reactions are taking place between volatile dissociation fragments, the concentration ratios [X]/[Z] of two elements in the binary deposit can be calculated from the yields as follows where [X]i and [Z]i (i = 1, 2) represent the

Junction formation of Cu₃BiS₃ investigated by Kelvin probe force microscopy and surface photovoltage measurements

• Fredy Mesa,
• William Chamorro,
• William Vallejo,
• Robert Baier,
• Thomas Dittrich,
• Alexander Grimm,
• Martha C. Lux-Steiner and
• Sascha Sadewasser

Beilstein J. Nanotechnol. 2012, 3, 277–284, doi:10.3762/bjnano.3.31

• surface defect states from which separation of photoexcited charge carriers is possible, i.e., chemical reactions at the Cu3BiS3/In2S3 interface lead to the passivation of surface-defect states in the band gap of Cu3BiS3. Often it is useful to analyze the amplitude and phase angle instead of the x- and y

Self-assembly of octadecyltrichlorosilane: Surface structures formed using different protocols of particle lithography

• ChaMarra K. Saner,
• Kathie L. Lusker,
• Zorabel M. LeJeune,
• Wilson K. Serem and
• Jayne C. Garno

Beilstein J. Nanotechnol. 2012, 3, 114–122, doi:10.3762/bjnano.3.12

• capabilities for the high-throughput fabrication of nanopatterns from organosilane self-assembled monolayers, which offers the opportunity to study surface-based chemical reactions at the molecular level. Nanopatterns of octadecyltrichlorosilane (OTS) were prepared on surfaces of Si(111) using designed

Substrate-mediated effects in photothermal patterning of alkanethiol self-assembled monolayers with microfocused continuous-wave lasers

• Anja Schröter,
• Mark Kalus and
• Nils Hartmann

Beilstein J. Nanotechnol. 2012, 3, 65–74, doi:10.3762/bjnano.3.8

• advantage of nonlinear effects, such as photothermal and multiphoton absorption processes [11][12][13][14][15][16][17]. In photothermal processing, laser light is used in order to locally heat the substrate surface and initiate chemical reactions [12]. Commonly, photothermal patterning of SAMs is carried

Octadecyltrichlorosilane (OTS)-coated ionic liquid drops: Micro-reactors for homogenous catalytic reactions at designated interfaces

• Xiaoning Zhang and
• Yuguang Cai

Beilstein J. Nanotechnol. 2012, 3, 33–39, doi:10.3762/bjnano.3.4

• defects on the OTS coating layer provided spaces for the catalyst inside the capsule and reactants outside the capsule to react. Hence, the coated IL drops enable the interfacial chemical reactions. Results and Discussion Chemical pattern-directed assembly of IL on surface The carboxylic acid-terminated

Micro- and mesoporous solids: From science to application

• Jörg J. Schneider

Beilstein J. Nanotechnol. 2011, 2, 774–775, doi:10.3762/bjnano.2.85

• achieve a basic understanding of what happens inside the porous framework of such a solid on the molecular, and nano- and mesocopic level, in a hierarchical order, during adsorption, desorption and chemical reactions. Alongside the development of experimental methods to unravel the details of the

How to remove the influence of trace water from the absorption spectra of SWNTs dispersed in ionic liquids

• Juan Yang,
• Daqi Zhang and
• Yan Li

Beilstein J. Nanotechnol. 2011, 2, 653–658, doi:10.3762/bjnano.2.69

• electrochemistry [4][5], and chemical reactions and separations [6][7][8][9]. In 2003, Fukushima et al. [10] found that by mixing together and mechanically grinding the single-walled carbon nanotubes with imidazolium-based ILs, a thermally stable bucky gel can be formed with SWNTs untangled from the heavily

Inorganic–organic hybrid materials through post-synthesis modification: Impact of the treatment with azides on the mesopore structure

• Miriam Keppeler,
• Jürgen Holzbock,
• Johanna Akbarzadeh,
• Herwig Peterlik and
• Nicola Hüsing

Beilstein J. Nanotechnol. 2011, 2, 486–498, doi:10.3762/bjnano.2.52

• structural features such as pore size, connectivity, etc., are strongly influenced by the presence of the organosilane [25]. These organo-functionalized silica gels can be further modified by chemical reactions with more complex functional groups; recent examples include Cu(I)-catalyzed 1,3-dipolar

• cycloadditions, also termed Click reactions, on silica surfaces involving alkynes and azide functionalities [26][27][28]. Reviewing the literature on this topic reveals that most of the examples of postsynthesis surface chemical reactions are concerned with the successful chemical conversion, but the structure

Organic–inorganic nanosystems

• Paul Ziemann

Beilstein J. Nanotechnol. 2011, 2, 363–364, doi:10.3762/bjnano.2.41

• specificity for subsequent chemical reactions or, in the simplest case, served as a spacer to avoid aggregation in a system of corresponding nanoobjects. However, there is yet another highly active field where the organic component delivers the sought after functionality of a device: Organic electronics. Here

Extended X-ray absorption fine structure of bimetallic nanoparticles

• Carolin Antoniak

Beilstein J. Nanotechnol. 2011, 2, 237–251, doi:10.3762/bjnano.2.28

• nanoparticles follows the approach by S. Sun et al. [84] by the reduction of platinum diacetylacetonate, Pt(acac)2 and thermal decomposition of iron pentacarbonyl, Fe(CO)5, in hexadecane-1,2-diol at about 300 °C. The chemical reactions were initiated in the presence of the surfactants oleic acid and oleyl amine

Defects in oxide surfaces studied by atomic force and scanning tunneling microscopy

• Thomas König,
• Georg H. Simon,
• Lars Heinke,
• Leonid Lichtenstein and
• Markus Heyde

Beilstein J. Nanotechnol. 2011, 2, 1–14, doi:10.3762/bjnano.2.1

• example, defects are often preferred adsorption sites and hence are particularly chemically active. Electrically charged defects may enable electron transfer processes, which play an important role in chemical reactions in general and in heterogeneous catalysis in particular. A sketch of a binary oxide

• on the MgO surface are investigated in detail and classified by their charge state. From calculations it has been proposed that color centers are directly involved in chemical reactions [23][24], e.g., as adsorption sites due to more attractive defect-adsorbate interactions compared with the pristine

Preparation and characterization of supported magnetic nanoparticles prepared by reverse micelles

• Ulf Wiedwald,
• Luyang Han,
• Johannes Biskupek,
• Ute Kaiser and
• Paul Ziemann

Beilstein J. Nanotechnol. 2010, 1, 24–47, doi:10.3762/bjnano.1.5

• such as the annealing of the covered NPs appears unfavorable due to the possible occurrence of chemical reactions. If, however, all these problems are carefully considered, SQUID-magnetometry can provide valuable information. The drawback of a strong diamagnetic substrate contribution in SQUID