Alloyed Pt₃M (M = Co, Ni) nanoparticles supported on S- and N-doped carbon nanotubes for the oxygen reduction reaction

• Stéphane Louisia,
• Yohann R. J. Thomas,
• Pierre Lecante,
• Marie Heitzmann,
• M. Rosa Axet,
• Pierre-André Jacques and
• Philippe Serp

Beilstein J. Nanotechnol. 2019, 10, 1251–1269, doi:10.3762/bjnano.10.125

• be done without compromise to the catalyst layer performance and durability. It is known that catalyst degradation via platinum dissolution and carbon corrosion plays an important role in the voltage degradation of PEMFCs [6][7][8]. CB, which is widely used, particularly for its low cost, suffers

• dispersing the Pt3Co/N-CNT or Pt3Ni/N-CNTHT in a 0.1 M EDTA solution and using ultrasonication. For the Pt3Co/N-CNT catalyst, the solution become purple in a few seconds, indicating the fast and easy dissolution of the Co; while for Pt3Ni/N-CNTHT, the solution become blue after a few hours. One can suppose

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

• the particle size and the size distribution of the growing NPs; ii) to immobilize the NPs either on the external surface or within nanoscale spaces, e.g., pores and intracrystalline cavities; iii) to diminish/to avoid NPs aggregation; iv) to suppress the NPs dissolution; v) to yield stable suspensions

• than bare ZnO. This was attributed to the dissolution of ZnO in acidic solution, which is suppressed by the hybridization with smectites [46][92][93]. CTA-smectites treated with a hydrothermal solution intercalation method at 70 °C for 10 h lead to ZnO@CTA-montmorillonite where the ZnO NPs are either

Enhanced inhibition of influenza virus infection by peptide–noble-metal nanoparticle conjugates

• Zaid K. Alghrair,
• David G. Fernig and
• Bahram Ebrahimi

Beilstein J. Nanotechnol. 2019, 10, 1038–1047, doi:10.3762/bjnano.10.104

• be determined experimentally, it would seem that the FluPep-functionalised nanoparticles may well be safe to deliver to target organs such the upper respiratory tract, a primary target for respiratory viruses including influenza. Although the mixed-matrix ligand shell largely prevents the dissolution

• of the silver, there are examples of ligand shells that allow solvent access to the silver and so the dissolution of the silver, at least under laboratory conditions [17]. Thus, it would be possible to design silver nanoparticles that act through FluPep ligand and released Ag+ ions. This would also

Concurrent nanoscale surface etching and SnO₂ loading of carbon fibers for vanadium ion redox enhancement

• Jun Maruyama,
• Shohei Maruyama,
• Tomoko Fukuhara,
• Toru Nagaoka and
• Kei Hanafusa

Beilstein J. Nanotechnol. 2019, 10, 985–992, doi:10.3762/bjnano.10.99

• the slightly retained amorphous carbon might prevent potential dislocation and dissolution of the SnO2 particles. Conclusion The thermal oxidation of Sn-containing carbonaceous thin films on a carbon fiber surface, which was formed by sublimation, deposition, and pyrolysis of SnPc during a single-step

In situ AFM visualization of Li–O₂ battery discharge products during redox cycling in an atmospherically controlled sample cell

• Kumar Virwani,
• Younes Ansari,
• Khanh Nguyen,
• Francisco José Alía Moreno-Ortiz,
• Jangwoo Kim,
• Maxwell J. Giammona,
• Ho-Cheol Kim and
• Young-Hye La

Beilstein J. Nanotechnol. 2019, 10, 930–940, doi:10.3762/bjnano.10.94

• scanned on the glassy carbon surface, vivid information about the dynamics of deposit formation during discharge and dissolution during recharge is visualized in Movie 2 (Supporting Information File 3). Each of the nine areas scanned in a spiral pattern shows the similar behavior of the sudden appearance

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

• ≤ 6), the final product of Li2S is formed upon discharging; and the charging process occurs through the reverse reactions [40]. The insulating nature of sulfur and the lithiation products (Li2S2 and Li2S), and the dissolution of higher-order Li2Sx (x = 4–8) are the main challenges in the application

Towards rare-earth-free white light-emitting diode devices based on the combination of dicyanomethylene and pyranine as organic dyes supported on zinc single-layered hydroxide

• Jeff L. Nyalosaso,
• Rachod Boonsin,
• Pierre Vialat,
• Damien Boyer,
• Geneviève Chadeyron,
• Rachid Mahiou and
• Fabrice Leroux

Beilstein J. Nanotechnol. 2019, 10, 760–770, doi:10.3762/bjnano.10.75

• -Aldrich. The two-components BluesilTM RTV 141 A&B as silicon film precursors was purchased from Bluestar Silicones (Elkem France). Synthesis procedures Preparation of the zinc single-layered hydroxide (Zn-SLH) The general procedure involves the dissolution of 50 mmol ZnAc2 in 0.5 L absolute EtOH at 85 °C

Deposition of metal particles onto semiconductor nanorods using an ionic liquid

• Michael D. Ballentine,
• Elizabeth G. Embry,
• Marco A. Garcia and
• Lawrence J. Hill

Beilstein J. Nanotechnol. 2019, 10, 718–724, doi:10.3762/bjnano.10.71

• afforded a mixture of platinum-decorated nanorods and additional platinum nanoparticles that were not attached to CdSe@CdS nanorods. For the platinum deposition conducted in toluene, the unattached platinum particles were removed by several dissolution and precipitation cycles using toluene and ethanol

Ultrasonication-assisted synthesis of CsPbBr₃ and Cs₄PbBr₆ perovskite nanocrystals and their reversible transformation

• Longshi Rao,
• Xinrui Ding,
• Xuewei Du,
• Guanwei Liang,
• Yong Tang,
• Kairui Tang and
• Jin Z. Zhang

Beilstein J. Nanotechnol. 2019, 10, 666–676, doi:10.3762/bjnano.10.66

• ultrasound power, corresponding to the red-shift of the PL emission peak, which is similar to the findings we recently reported [30]. While higher ultrasound power supports faster dissolution, it has also a strong impact on the homogeneity of the PNCs. For example, when the ultrasound power is 210 W, the UV

• be proven by the reduction of crystal size from 65 to 11.7 nm (Figure 1 and Figure 4). This is consistent with the findings reported by Wu and co-workers [20]. As the solubility of liquid paraffin or capping ligands in water is very low, further dissolution of CsPbBr3 PNCs is inhibited, which is

Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)

• Miguel A. Andrés,
• Clemence Sicard,
• Christian Serre,
• Olivier Roubeau and
• Ignacio Gascón

Beilstein J. Nanotechnol. 2019, 10, 654–665, doi:10.3762/bjnano.10.65

• the MOF dispersions and the spreading process. However, bare MOF films do not completely cover the water surface, probably due to the dissolution of MOF sMPs into the aqueous subphase. As an alternative, the fabrication of mixed MOF/surfactant films has been optimized by using octadecylphosphonic acid

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• , no trace of the base structure remains. The carbon and nitrogen signals from the bases have much lower intensity, and the residual carbon is attributed to adventitious carbon only. This is exemplified by the C 1s peak of the film based on thymine in Figure 14. This indicates dissolution or

Integration of LaMnO_3+δ films on platinized silicon substrates for resistive switching applications by PI-MOCVD

• Raquel Rodriguez-Lamas,
• Dolors Pla,
• Odette Chaix-Pluchery,
• Benjamin Meunier,
• Fabrice Wilhelm,
• Andrei Rogalev,
• Laetitia Rapenne,
• Xavier Mescot,
• Quentin Rafhay,
• Hervé Roussel,
• Michel Boudard,
• Carmen Jiménez and
• Mónica Burriel

Beilstein J. Nanotechnol. 2019, 10, 389–398, doi:10.3762/bjnano.10.38

• ] have been used for the deposition of epitaxial and polycrystalline LMO and doped LMO thin films enabling the control of the oxygen and cation stoichiometry. Since the precursor solution is simply prepared by dissolution of metalorganic species, the stoichiometry of the film is easily tuneable by

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

• during the dissolution and recrystallization process. The dissolved nickel atoms may continuously attach and bond to the surface of larger nanopetals, and form flower-like structures in order to achieve a minimum total free energy. Chemical characteristics of the composite surface In order to clarify the

• explained through a preferential oxidation of Ti and Zr during the alloy fabrication and the subsequent oxidation exposed to the air. After immersion in 0.05 M HF for 4 h, the signals for Ti and Zr become very weak due to the dissolution of Ti and Zr. It is clarified that the surface film of as-spun alloy

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

• 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

• line). Regions of predominant thermodynamic stability and dissolution of the solid in water oxidation conditions are color-coded in green and red, respectively. Photographs and schematic drawings of laser-induced chemical liquid deposition geometry on planar (a,b) and nanostructured samples (c,d) from

Characterization and influence of hydroxyapatite nanopowders on living cells

• Przemyslaw Oberbek,
• Tomasz Bolek,
• Adrian Chlanda,
• Seishiro Hirano,
• Sylwia Kusnieruk,
• Julia Rogowska-Tylman,
• Ganna Nechyporenko,
• Viktor Zinchenko,
• Wojciech Swieszkowski and
• Tomasz Puzyn

Beilstein J. Nanotechnol. 2018, 9, 3079–3094, doi:10.3762/bjnano.9.286

• interaction of HAp nanoobjects with cells when they are in the interior of the cells instead of being outside in close proximity. The growth stimulation in cells is probably related to a boost of PO43− that are a product of HAp dissolution. Phosphate groups can be used for ATP synthesis in mitochondria [63

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

• ][2][3], resistance [4][5][6], magnetic moment [5][7], optical transmission [8] and selective chemical transport [9] have been reported in recent years, apart from the mechanical properties described below. Dealloying, a selective dissolution process, has become an established technique to produce

• refers to the small offset accumulated after an oxide half-cycle, which can be attributed to weak anodic palladium (oxide) dissolution [29]. The length changes upon voltammetric cycling are in agreement with recent results for dealloyed nanoporous palladium from different base alloys [17][18]. The highly

• electrochemical cell, using the same counter and reference electrodes as described for the in situ setup. As chemical dissolution processes can hardly be discerned from mechanical yielding on the basis of strain curves obtained in a dilatometer, dissolution processes should be minimised using an adequate

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

• bonding geometry. We have previously reported that the selective growth of the silica core of binary PS/silica CMs and the subsequent dissolution of the polymeric satellites [19] leads to silica particles with a precise number of dimples. The PS chains which are chemically grafted onto the silica surface

• remain at the bottom of the dimples after the dissolution stage and can be specifically chemically modified providing both enthalpic and entropic characteristics to the patches [20][21]. Here we report the use of these patchy silica nanoparticles with two or four dimples as sp- and sp3-like colloidal

• of a central silica core and two or four PS nodules were prepared by the seeded-growth emulsion polymerization of styrene, according to an already published procedure [24]. The regrowth of the silica cores of the multipods, the subsequent dissolution of the PS nodules to create dimpled particles and

The nanoscaled metal-organic framework ICR-2 as a carrier of porphyrins for photodynamic therapy

• Jan Hynek,
• Sebastian Jurík,
• Martina Koncošová,
• Jaroslav Zelenka,
• Ivana Křížová,
• Tomáš Ruml,
• Kaplan Kirakci,
• Ivo Jakubec,
• František Kovanda,
• Kamil Lang and
• Jan Demel

Beilstein J. Nanotechnol. 2018, 9, 2960–2967, doi:10.3762/bjnano.9.275

• in PBS it resulted in amorphisation of the ICR-2 nanoparticles, and in the case of nanoICR-2/porphyrin in partial dissolution of the porphyrin. In order to ascertain the effects of the MOF structure on the porphyrin units, UV–vis absorption and fluorescence spectra were measured and compared with the

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

• Figure 3a,d one can see that the NCs formed under these conditions are not well defined and are subject to a rather large size distribution (not shown in this diagram). We conclude that for these cases either insufficient mixing or the onset of NC dissolution, respectively, leads to the observed broad NC

• dissolution ((d) 10000 MCs) of the individual Si NC. The top silicon layer is not shown for clarity. Detection of a single Si NC in SiO2. (a) Si plasmon-loss filtered TEM image. A single Si NC (white) in the center of the buried oxide layer (blue) vertically aligned with the sputter crater of the Ne

Nanostructure-induced performance degradation of WO₃·nH₂O for energy conversion and storage devices

• Zhenyin Hai,
• Mohammad Karbalaei Akbari,
• Zihan Wei,
• Danfeng Cui,
• Chenyang Xue,
• Hongyan Xu,
• Philippe M. Heynderickx,
• Francis Verpoort and
• Serge Zhuiykov

Beilstein J. Nanotechnol. 2018, 9, 2845–2854, doi:10.3762/bjnano.9.265

• continuous stirring. After complete dissolution of the Na2WO4·2H2O powder, 0.416 mL of hydrochloric acid (HCl, 36–38 wt %) solution was added dropwise while stirring for 15 min at room temperature. Subsequently, 0.2241 g of oxalic acid (C2H2O4) was added to the solution and the solution was then diluted with

Comparative biological effects of spherical noble metal nanoparticles (Rh, Pd, Ag, Pt, Au) with 4–8 nm diameter

• Alexander Rostek,
• Marina Breisch,
• Kevin Pappert,
• Kateryna Loza,
• Marc Heggen,
• Manfred Köller,
• Christina Sengstock and
• Matthias Epple

Beilstein J. Nanotechnol. 2018, 9, 2763–2774, doi:10.3762/bjnano.9.258

• = 40,000 g mol−1), sodium borohydride (Sigma-Aldrich, ≥96%, p.a.) trisodium citrate (Acros, anhydrous 98%), tannic acid (Fluka, p.a.), and D-glucose (Baker, p.a.) were all used as obtained. Aqueous solutions of H2PtCl6 or HAuCl4 (prepared by dissolution of platinum or gold in aqua regia), RhCl3, NaPdCl4

• the toxicity of silver nanoparticles is due to the oxidative release of silver ions [38][39][40][43][67][94][95][96][97][98][99][100], we can tentatively assume that such a dissolution does not occur for the more noble metals, and that the nanoparticles themselves are not cytotoxic. Due to the more

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

• interpreted as a function of the exposure time of the TNTs to the F− ions from the electrolyte (Figure S1a, Supporting Information File 1). It has been demonstrated by Albu [20] that a prolonged exposure of the TNTs to a fluorinated electrolyte leads to dissolution at the electrode/electrolyte interface

• electrooxidation process for the degradation of such components. Chlorides are often present in these waste waters [81][82][83][84], and for that reason a dissolution of 0.5 M KCl was chosen as the electrolyte. The electrolyte was not purged with N2 or O2 prior to or during the experiment. Figure 9a depicts the

• pass) of 1 cm. The MB dissolution was recirculated using a peristaltic pump to a standard quartz cuvette where the absorbance at 638 nm was measured in situ. In a typical experiment, a fixed ratio of 12.5:1 (volume/area) was used for all the samples while a potential bias of 1 V/(Ag|AgCl) was applied

ZnO-nanostructure-based electrochemical sensor: Effect of nanostructure morphology on the sensing of heavy metal ions

• Marina Krasovska,
• Vjaceslavs Gerbreders,
• Irena Mihailova,
• Andrejs Ogurcovs,
• Eriks Sledevskis,
• Andrejs Gerbreders and
• Pavels Sarajevs

Beilstein J. Nanotechnol. 2018, 9, 2421–2431, doi:10.3762/bjnano.9.227

• selective dissolution of metastable ZnO planes with decreasing growth solution temperature, achieving a considerable Zn-ion deficiency during the hydrothermal process [19][20][21][22]. The synthesis of the ZnO nanotubes was performed in a growth solution with the same chemical composition as for synthesis

Phosphorus monolayer doping (MLD) of silicon on insulator (SOI) substrates

• Noel Kennedy,
• Ray Duffy,
• Luke Eaton,
• Dan O’Connell,
• Scott Monaghan,
• Shane Garvey,
• James Connolly,
• Chris Hatem,
• Justin D. Holmes and
• Brenda Long

Beilstein J. Nanotechnol. 2018, 9, 2106–2113, doi:10.3762/bjnano.9.199

• to draw holes to the surface and enable the dissolution of the semiconductor into the electrolyte. Applying this voltage near the insulator layer becomes problematic and prevents etching and analysis in this region. Hall effect measurements were instead used, which required careful handling during

Fabrication of photothermally active poly(vinyl alcohol) films with gold nanostars for antibacterial applications

• Mykola Borzenkov,
• Maria Moros,
• Claudia Tortiglione,
• Serena Bertoldi,
• Nicola Contessi,
• Silvia Faré,
• Angelo Taglietti,
• Agnese D’Agostino,
• Piersandro Pallavicini,
• Maddalena Collini and
• Giuseppe Chirico

Beilstein J. Nanotechnol. 2018, 9, 2040–2048, doi:10.3762/bjnano.9.193

• with 0.05 M NaOH. Preparation of PVA films containing gold nanostars The films were prepared according to the following protocol: an aqueous solution of PVA (9% w/w) was stored one hour in an oven (≈100 °C) until complete dissolution of PVA, and then PEG-200 (0.11 g) was added and the mixture was