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Search for "Ni" in Full Text gives 366 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Comparing a porphyrin- and a coumarin-based dye adsorbed on NiO(001)

  • Sara Freund,
  • Antoine Hinaut,
  • Nathalie Marinakis,
  • Edwin C. Constable,
  • Ernst Meyer,
  • Catherine E. Housecroft and
  • Thilo Glatzel

Beilstein J. Nanotechnol. 2019, 10, 874–881, doi:10.3762/bjnano.10.88

Graphical Abstract
  • distribution of the surface (Ni is δ+ and O is δ−), it is thought that the metallic core of the molecule is likely to be located above an O atom. In addition, it is expected, that the molecules adopt the same adsorption configuration, independent of the island type, triggered by the formation of H-bonds
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Published 15 Apr 2019

Tungsten disulfide-based nanocomposites for photothermal therapy

  • Tzuriel Levin,
  • Hagit Sade,
  • Rina Ben-Shabbat Binyamini,
  • Maayan Pour,
  • Iftach Nachman and
  • Jean-Paul Lellouche

Beilstein J. Nanotechnol. 2019, 10, 811–822, doi:10.3762/bjnano.10.81

Graphical Abstract
  • , they reported a method based on a nickel–nitrotriacetic acid (Ni-NTA) complex as an anchoring group for different chemical functionalities [48][49][50]. Another study of the Tremel group involves terpyridine (TerPy) ligands [51]. NTA and TerPy are multi-dentate ligands, forming complexes with
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Published 02 Apr 2019

Trapping polysulfide on two-dimensional molybdenum disulfide for Li–S batteries through phase selection with optimized binding

  • Sha Dong,
  • Xiaoli Sun and
  • Zhiguo Wang

Beilstein J. Nanotechnol. 2019, 10, 774–780, doi:10.3762/bjnano.10.77

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  • '-MoS2 monolayer are lower in energy than the orbital of 2H-MoS2, thus leading to a stronger binding. Both 2H-MoS2 and 1T'-MoS2 monolayers show less trapping of S8 with a binding energy of 0.04 eV. The binding energies of Li2Sx on borophene are in the range from −1.00 to −3.00 eV [15] and on Ni-doped
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Published 26 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

Graphical Abstract
  • . This is a consequence of the fact that self-organization is dominated by the periphery of the porphyrin [32][33][34][35][36][37][38]. As an example, we note the case of mixtures of Co-TPP and Ni-TPP (TPP = tetraphenylporphyrin) on Au(111) forming ordered islands with random distributions of the two
  • understanding the whole process. Since the energy depends almost linearly on the position for TM = (Cr, Fe, Co and Ni) it is reasonable to assume that in these cases the process will follow similar dynamics. For VPP, and partially for MnPP, a larger gap occurs between the “i” and “h” position, suggesting that
  • approximately 4.0, 4.8, 1.0 and 0μB per unit cell for TM = Cr, Mn, Co and Ni, respectively. In order to comment on the dependence between the position and magnetization we remind that the magnetic moments are the result of the crystal-field splitting of the d-orbitals of the TM. Hence, they depend critically on
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Published 13 Mar 2019

Topochemical engineering of composite hybrid fibers using layered double hydroxides and abietic acid

  • Liji Sobhana,
  • Lokesh Kesavan,
  • Jan Gustafsson and
  • Pedro Fardim

Beilstein J. Nanotechnol. 2019, 10, 589–605, doi:10.3762/bjnano.10.60

Graphical Abstract
  • stacked in a uniform fashion [17][18][19]. This makes the material employable for charge-directed self-assembly of any molecule of interest on its surface. The metals in this kind of inorganic solids, such as Ni, Mg, Zn, Al, Fe, usually have oxidation states of +2 and +3. The anions in these materials are
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Published 28 Feb 2019

Mo-doped boron nitride monolayer as a promising single-atom electrocatalyst for CO2 conversion

  • Qianyi Cui,
  • Gangqiang Qin,
  • Weihua Wang,
  • Lixiang Sun,
  • Aijun Du and
  • Qiao Sun

Beilstein J. Nanotechnol. 2019, 10, 540–548, doi:10.3762/bjnano.10.55

Graphical Abstract
  • means a stronger interaction. Therefore, it can be seen clearly from Figure 1a that there is weak adsorption between CO2 and some of the TM-doped BN monolayers, including Sc, Mn, Fe, Co, Ni, Zn, Ru, Rh, Pd and Ag, whose adsorption energy values are not negative enough to satisfy the requirements as
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Published 22 Feb 2019

Nanocomposite–parylene C thin films with high dielectric constant and low losses for future organic electronic devices

  • Marwa Mokni,
  • Gianluigi Maggioni,
  • Abdelkader Kahouli,
  • Sara M. Carturan,
  • Walter Raniero and
  • Alain Sylvestre

Beilstein J. Nanotechnol. 2019, 10, 428–441, doi:10.3762/bjnano.10.42

Graphical Abstract
  • the film thickness. Grazing incidence X-ray diffraction scans were carried out on a Philips diffractometer on the as-grown samples, using Ni-filtered Cu Kα radiation at 40 kV and 40 mA. The incidence angle was fixed at 0.5° for all the samples. Some spectra were also collected at 1° incidence in order
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Published 12 Feb 2019

Improving control of carbide-derived carbon microstructure by immobilization of a transition-metal catalyst within the shell of carbide/carbon core–shell structures

  • Teguh Ariyanto,
  • Jan Glaesel,
  • Andreas Kern,
  • Gui-Rong Zhang and
  • Bastian J. M. Etzold

Beilstein J. Nanotechnol. 2019, 10, 419–427, doi:10.3762/bjnano.10.41

Graphical Abstract
  • types of carbides [19]). Commonly used graphitization catalysts are transitions metals such as Fe, Ni, and Co [18][21][22]. The conventional method for catalytic graphitization is to mix the non-porous carbide and metal catalyst precursor prior to the selective etching at high temperature. Indeed, the
  • impregnation of untreated titanium carbide was compared with the same loading (30 mg of nickel per gram of equivalent carbide). EDX mapping (see Figure S1 in Supporting Information File 1) of the impregnated core–shell material shows clearly the remaining core in the Ti K edge signal, while the Ni K and Cl K
  • ., “Area I” in the region below 610 °C and “Area II” in the region above 610 °C. From integrating both regions the ratio between amorphous and graphitic carbon can be roughly estimated. Figure 4b plots this ratio as a function of the Ni catalyst loading. It can be clearly seen that the portion of
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Published 11 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

Graphical Abstract
  • interface) and secondary reflection (GZO–silver interface) is an integer multiple of π: where λF−P is the wavelength (in vacuo) at which there is constructive or destructive interference between front and back reflected beams. di and ni are the thickness and (wavelength-dependent) refractive index of the i
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Published 31 Jan 2019

Heating ability of magnetic nanoparticles with cubic and combined anisotropy

  • Nikolai A. Usov,
  • Mikhail S. Nesmeyanov,
  • Elizaveta M. Gubanova and
  • Natalia B. Epshtein

Beilstein J. Nanotechnol. 2019, 10, 305–314, doi:10.3762/bjnano.10.29

Graphical Abstract
  • small interval 1 < a/b < ξmax. For elongated nanoparticles, in addition to the magneto-crystalline anisotropy energy, Equation 3, there is also a shape anisotropy energy contribution where Ki is the shape anisotropy constant and ni is the unit vector along the direction of elongation of the ith
  • anisotropy the directions of the particle elongations ni are unit vectors randomly distributed in space – the semiaxis ratios ξi = 2ai/D are random variables uniformly distributed within the interval 1 ≤ ξi ≤ ξmax. Here ai is the long semiaxis of the ith nanoparticle, whereas its transverse semiaxis equals D
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Published 29 Jan 2019

A Ni(OH)2 nanopetals network for high-performance supercapacitors synthesized by immersing Ni nanofoam in water

  • Donghui Zheng,
  • Man Li,
  • Yongyan Li,
  • Chunling Qin,
  • Yichao Wang and
  • Zhifeng Wang

Beilstein J. Nanotechnol. 2019, 10, 281–293, doi:10.3762/bjnano.10.27

Graphical Abstract
  • Developing a facile and environmentally friendly approach to the synthesis of nanostructured Ni(OH)2 electrodes for high-performance supercapacitor applications is a great challenge. In this work, we report an extremely simple route to prepare a Ni(OH)2 nanopetals network by immersing Ni nanofoam in water. A
  • binder-free composite electrode, consisting of Ni(OH)2 nanopetals network, Ni nanofoam interlayer and Ni-based metallic glass matrix (Ni(OH)2/Ni-NF/MG) with sandwich structure and good flexibility, was designed and finally achieved. Microstructure and morphology of the Ni(OH)2 nanopetals were
  • characterized. It is found that the Ni(OH)2 nanopetals interweave with each other and grow vertically on the surface of Ni nanofoam to form an “ion reservoir”, which facilitates the ion diffusion in the electrode reaction. Electrochemical measurements show that the Ni(OH)2/Ni-NF/MG electrode, after immersion in
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Published 25 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
  • on bare/patterned ITO were structurally characterized using an X-ray diffractometer (PANalytical X’pert Pro model) having Cu Kα radiation (λ = 1.54 Å) in the 2θ range 20° to 80° using grazing incidence X-ray diffraction (GIXRD). The setup consists of an X-ray mirror, a Ni filter, and a PIXcel3D
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Published 24 Jan 2019

Interaction of Te and Se interlayers with Ag or Au nanofilms in sandwich structures

  • Arkadiusz Ciesielski,
  • Lukasz Skowronski,
  • Marek Trzcinski,
  • Ewa Górecka,
  • Wojciech Pacuski and
  • Tomasz Szoplik

Beilstein J. Nanotechnol. 2019, 10, 238–246, doi:10.3762/bjnano.10.22

Graphical Abstract
  • common sublayers for silver and gold are Cr [1][2], Ti [2][13][14], Ni [14][15], Cu [16], Ge [3][14][15][17] as well as amorphous hydrogenated carbon (a-C:H) [4], polymer layers [18][19] and recently also Al2O3 [9]. The use of these materials is relatively inexpensive and is an easy way to promote the
  • films have a sheet resistance approximately twice higher than similar structures deposited on top of Ti or Ni sublayers. Ellipsometric and XPS measurements by Wróbel et al. [25] have shown that this increase in ohmic losses is most likely a result of Ge atoms segregating towards the surface of the
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Published 21 Jan 2019

Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

  • Sandra Haschke,
  • Dmitrii Pankin,
  • Vladimir Mikhailovskii,
  • Maïssa K. S. Barr,
  • Adriana Both-Engel,
  • Alina Manshina and
  • Julien Bachmann

Beilstein J. Nanotechnol. 2019, 10, 157–167, doi:10.3762/bjnano.10.15

Graphical Abstract
  • limited by its significant dissolution (corrosion) at high anodic potential over the whole pH range (Figure 2) [10][11][12]. One strategy to address this limitation has involved mixing metallic Ru (or its oxides) with other solids (such as Ir [13][14][15][16][17][18], Ta [19], or Pt [20], TiO2 [21], Ni
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Published 11 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

Graphical Abstract
  • surface morphology, with preferable erosion of hills as compared with valleys [6], which also results in the smoothing of the surface [7]. Sputtering by an argon cluster beam has been studied for many pure metals (Cu, Ag, Au, W, Pt, Ni) and their alloys, semiconductors (Si and SiC), and insulators (SiO2
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Published 10 Jan 2019

Amorphous NixCoyP-supported TiO2 nanotube arrays as an efficient hydrogen evolution reaction electrocatalyst in acidic solution

  • Yong Li,
  • Peng Yang,
  • Bin Wang and
  • Zhongqing Liu

Beilstein J. Nanotechnol. 2019, 10, 62–70, doi:10.3762/bjnano.10.6

Graphical Abstract
  • by cyclic voltammetry, linear sweep voltammetry, and electrochemical impedance spectroscopy. We show that after incorporating Co into Ni–P, the resulting NixCoyP/TNAs present enhanced electrocatalytic activity due to the improved electron transfer and increased electrochemically active surface area
  • (ECSA). In 0.5 mol L−1 H2SO4 electrolyte, the NixCoyP/TNAs (x = 3.84, y = 0.78) demonstrated an ECSA value of 52.1 mF cm−2, which is 3.8 times that of Ni–P/TNAs (13.7 mF cm−2). In a two-electrode system with a Pt sheet as the anode, the NixCoyP/TNAs presented a bath voltage of 1.92 V at 100 mA cm−2
  • .) demonstrate a superior electrochemical performance. Because the ternary phases provide a synergistic effect, these bi-metal phosphides provide good electrical conductivity and electronic structure [15][16][17]. Among the bi-metal phosphides, Ni–Co–P catalysts have been intensively investigated. The similar
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Published 07 Jan 2019

Bidirectional biomimetic flow sensing with antiparallel and curved artificial hair sensors

  • Claudio Abels,
  • Antonio Qualtieri,
  • Toni Lober,
  • Alessandro Mariotti,
  • Lily D. Chambers,
  • Massimo De Vittorio,
  • William M. Megill and
  • Francesco Rizzi

Beilstein J. Nanotechnol. 2019, 10, 32–46, doi:10.3762/bjnano.10.4

Graphical Abstract
  • 1.8°, voltage output was amplified (100× amplification factor), converted analogue-to-digital with 14 bits precision (NI USB-6009), recorded and post-processed with a commercial software (MATLAB). In each of the 200 positions (for a full cycle of 360 degrees), 10,000 samples were taken with a sampling
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Published 03 Jan 2019

A novel polyhedral oligomeric silsesquioxane-modified layered double hydroxide: preparation, characterization and properties

  • Xianwei Zhang,
  • Zhongzhu Ma,
  • Hong Fan,
  • Carla Bittencourt,
  • Jintao Wan and
  • Philippe Dubois

Beilstein J. Nanotechnol. 2018, 9, 3053–3068, doi:10.3762/bjnano.9.284

Graphical Abstract
  • , these peaks in the brucite-like lattice show a small shift toward higher binding energies, probably arising from the interferences of OCPS intercalators. A similar phenomenon has been reported before in the case of carbon black nanoparticles modified Ni–Fe LDH [31]. XRD The XRD patterns of NLDH and OLDH
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Published 19 Dec 2018

Colloidal chemistry with patchy silica nanoparticles

  • Pierre-Etienne Rouet,
  • Cyril Chomette,
  • Laurent Adumeau,
  • Etienne Duguet and
  • Serge Ravaine

Beilstein J. Nanotechnol. 2018, 9, 2989–2998, doi:10.3762/bjnano.9.278

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  • calculated based on a minimum of 500 nanoparticles per batch using the following equation: where and are the number-average and the weight-average diameter, respectively, and ni is the number of particles of diameter Di. Synthesis of the Au@SiO2 nanoparticles Gold nanoparticles of 14 ± 2 nm were prepared
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Published 06 Dec 2018

Investigation of CVD graphene as-grown on Cu foil using simultaneous scanning tunneling/atomic force microscopy

  • Majid Fazeli Jadidi,
  • Umut Kamber,
  • Oğuzhan Gürlü and
  • H. Özgür Özer

Beilstein J. Nanotechnol. 2018, 9, 2953–2959, doi:10.3762/bjnano.9.274

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  • two main groups, i.e., “strongly bonded” and “weakly bonded”. Graphene–Ni, graphene–Co and graphene–Rh are classified as strongly bonded and others such as graphene–Cu, graphene–Au and graphene–Ir are classified as weakly bonded. Moreover, graphene–metal interaction can result in a lattice-matched
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Published 28 Nov 2018

Site-controlled formation of single Si nanocrystals in a buried SiO2 matrix using ion beam mixing

  • Xiaomo Xu,
  • Thomas Prüfer,
  • Daniel Wolf,
  • Hans-Jürgen Engelmann,
  • Lothar Bischoff,
  • René Hübner,
  • Karl-Heinz Heinig,
  • Wolfhard Möller,
  • Stefan Facsko,
  • Johannes von Borany and
  • Gregor Hlawacek

Beilstein J. Nanotechnol. 2018, 9, 2883–2892, doi:10.3762/bjnano.9.267

Graphical Abstract
  • predefined number Ni of incident ions, being related to the cross section according to where n(x) denotes the local atomic density. Thus, the mixing efficiency results as where xi and xf denote the initial and final depths, respectively, of each recoil generated within Δx. In Figure 4a the so obtained depth
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Published 16 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

Graphical Abstract
  • on the substrate with Ni/Cu IDEs to fabricate the CuO–rGO sensor. The CuO–rGO sensor showed a three-times higher sensitivity to CO and faster response/recovery time than the rGO sensor, while the pure CuO sensor showed no response to CO at room temperature. The p–p junctions constituted between p
  • sensor sensitivity to the Ni–O–C bonds formed at the interfaces of NiO nanoparticles and graphene sheets. The NO2 molecules capture electrons from the surface of NiO nanoparticles when the sensor is exposed to NO2. More and more electrons are transferred from graphene to NiO by Ni–O–C bonds because of
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Published 09 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

Graphical Abstract
  • , where M = Co, Mn, Ni or Cu). The energy levels of the intrinsic defects are located between the valence and conduction bands and have different ionization energies ranging from ≈0.05 to 2.8 eV [10]. Various emissions (fluorescence) in the visible (green, yellow and red) originating from the defects in
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Published 23 Oct 2018

Enhanced antineoplastic/therapeutic efficacy using 5-fluorouracil-loaded calcium phosphate nanoparticles

  • Shanid Mohiyuddin,
  • Saba Naqvi and
  • Gopinath Packirisamy

Beilstein J. Nanotechnol. 2018, 9, 2499–2515, doi:10.3762/bjnano.9.233

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  • diffractometer using Ni-filtered Cu Kα radiation with a typical scan speed of 0.05 °/min in the range of 2θ = 5–90°. Transmission electron microscopy The surface and internal morphology as well as the size of CaP@5-FU NPs were visualised by TEM. A small drop of the aqueous dispersed CaP@5-FU NPs with the
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Published 20 Sep 2018

Nanocellulose: Recent advances and its prospects in environmental remediation

  • Katrina Pui Yee Shak,
  • Yean Ling Pang and
  • Shee Keat Mah

Beilstein J. Nanotechnol. 2018, 9, 2479–2498, doi:10.3762/bjnano.9.232

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  • functional groups usually induce a high adsorption rate at low pH while a decrease in the adsorption uptake capacity is observed in medium with pH above 8. The aminopropyltriethoxysilane modified MFC’s affinity for different metal ions follows the order of Cd(II) > Cu(II) > Ni(II) [90]. The modified
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Published 19 Sep 2018
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