Synthesis and characterization of noble metal–titania core–shell nanostructures with tunable shell thickness

• Bartosz Bartosewicz,
• Marta Michalska-Domańska,
• Malwina Liszewska,
• Dariusz Zasada and
• Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2017, 8, 2083–2093, doi:10.3762/bjnano.8.208

• applications in comparison to regular titania or perovskite particles. Experimental Chemicals All chemicals, including sodium citrate dihydrate (>99%), hydroxylamine hydrochloride (>99%), gold(III) chloride hydrate (99.99%) and titanium(IV) butoxide (>97%) were purchased from Sigma-Aldrich. Methylamine (40% w

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

• Suneel Kumar,
• Ashish Kumar,
• Ashish Bahuguna,
• Vipul Sharma and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

• the g-C3N4–BiVO4 nanocomposite and the comparative rate of rate of O2 evolution for various prepared catalysts along with control samples. It is well known that perovskite-type oxides (ABO3) constitute one of the promising classes of materials with diverse properties [148]. The main advantage of using

• the perovskite-type cubic structure is the flexibility to tune the composition of the A and B sites to form substituted materials [148]. Strontium titanate (SrTiO3) is an important dielectric material, with a band gap energy of 3.2 eV. The SrTiO3 has been explored as an ideal photocatalytic material

The role of 2D/3D spin-polarization interactions in hybrid copper hydroxide acetate: new insights from first-principles molecular dynamics

• Ziyad Chaker,
• Guido Ori,
• Mauro Boero and
• Carlo Massobrio

Beilstein J. Nanotechnol. 2017, 8, 857–860, doi:10.3762/bjnano.8.86

• ][9] with a similar approach by means of first-principles calculations showed a cooperative spin-state transition upon application of pressure for a hybrid metal–organic framework perovskite. Both the transition pressure and the width of the hysteresis have found to be strongly dependent on the nature

Improved lithium-ion battery anode capacity with a network of easily fabricated spindle-like carbon nanofibers

• Mengting Liu,
• Wenhe Xie,
• Lili Gu,
• Tianfeng Qin,
• Xiaoyi Hou and
• Deyan He

Beilstein J. Nanotechnol. 2016, 7, 1289–1295, doi:10.3762/bjnano.7.120

• conversion potential and small voltage hysteresis [8][12][13]. However, as a typical perovskite semiconductor, MnO usually suffers inherently poor conductivity and severe volume change during Li+ insertion/extraction, which can seriously lead to capacity fading and further limit its application [4][5][8

Influence of synthesis conditions on microstructure and phase transformations of annealed Sr₂FeMoO_6−x nanopowders formed by the citrate–gel method

• Marta Yarmolich,
• Nikolai Kalanda,
• Sergey Demyanov,
• Herman Terryn,
• Jon Ustarroz,
• Maksim Silibin and
• Gennadii Gorokh

Beilstein J. Nanotechnol. 2016, 7, 1202–1207, doi:10.3762/bjnano.7.111

• Sr2FeMoO6−x systems with an ordered double perovskite structure are among the most promising materials for spintronic devices [3][4][5][6]. However, the synthesis of strontium ferromolybdate by conventional methods [2][3][7][8], including solid-state synthesis using high-temperature annealing in a reducing

• relatively new, but very promising method to synthesize nanoscale, double perovskite materials at relatively low temperatures and in a shorter time [3][4][14]. However, despite numerous articles devoted to this subject [3][7][8][15][16], the optimization of a sol–gel-based synthesis procedure to obtain

• inclusions in the basic, double perovskite matrix and magnetic phase transitions in local areas. The occurrence of this phase transition at 188 K in SFMO-6 and SFMO-9 powders could be related to the paramagnetic–antiferromagnetic, magnetic phase transition in the wustite (Fe0.947O) [20][21][22]. This

Materials for sustainable energy production, storage, and conversion

• Maximilian Fichtner

Beilstein J. Nanotechnol. 2015, 6, 1601–1602, doi:10.3762/bjnano.6.163

• present recent results from the respective working groups. In the field of energy harvesting and photovoltaics, Benedikt Iffland and Christian Jooss [1] report on current–voltage characteristics of manganite–titanite perovskite junctions. State-of-the art and recent progress in energy conversion from

Current–voltage characteristics of manganite–titanite perovskite junctions

• Benedikt Ifland,
• Patrick Peretzki,
• Birte Kressdorf,
• Philipp Saring,
• Andreas Kelling,
• Michael Seibt and
• Christian Jooss

Beilstein J. Nanotechnol. 2015, 6, 1467–1484, doi:10.3762/bjnano.6.152

• Goettingen, Germany 10.3762/bjnano.6.152 Abstract After a general introduction into the Shockley theory of current voltage (J–V) characteristics of inorganic and organic semiconductor junctions of different bandwidth, we apply the Shockley theory-based, one diode model to a new type of perovskite junctions

• semiconductors such as conjugated polymers [8] as well as some perovskite oxides [9][10][11]. Perovskites have the general formula ABX3, where the A cation in a cuboctahedral site coordinates with 12 anions, and the B cation in an octahedral site coordinates with 6 anions. New perovskite materials under

• hand, the manganite oxide perovskites are strongly correlated electron systems that exhibit a strong electron–phonon interaction. This leads to the formation of small polarons [21]. The polaron-like character of the quasi-particles in perovskite oxides provides at least two exciting issues related to

High photocatalytic activity of V-doped SrTiO₃ porous nanofibers produced from a combined electrospinning and thermal diffusion process

• Panpan Jing,
• Wei Lan,
• Qing Su and
• Erqing Xie

Beilstein J. Nanotechnol. 2015, 6, 1281–1286, doi:10.3762/bjnano.6.132

• patterns of two samples. All the diffraction peaks could be indexed to the standard perovskite phase of SrTiO3 (JCPDS No. 35-0734) [25] without any indication of other impurity phases. Both samples show a polycrystalline structure, while the peaks of the V-doped SrTiO3 nanofibers are stronger and

• perovskite structure above 105 K, where Sr2+ ions are at the corner of the cube and a Ti4+ ion occupies the centrosymmetric position surrounded by six O2− anions, forming a TiO6 octahedron [30]. In other words, the crystalline structure of SrTiO3 is a framework of O2− anions. When a sample is fabricated

Silica micro/nanospheres for theranostics: from bimodal MRI and fluorescent imaging probes to cancer therapy

• Shanka Walia and
• Amitabha Acharya

Beilstein J. Nanotechnol. 2015, 6, 546–558, doi:10.3762/bjnano.6.57

• composed of La0.75Sr0.25MnO3 (LSMO) perovskite magnetite NPs encapsulated in a silica layer and to these NPs, a fluorescent FITC–APS (F) complex was covalently attached. These LSMO@SiF NPs were again coated with silica either by direct treatment with TEOS to form LSMO@SiF@Si-u or by reacting the

Quasi-1D physics in metal-organic frameworks: MIL-47(V) from first principles

• Danny E. P. Vanpoucke,
• Jan W. Jaeken,
• Stijn De Baerdemacker,
• Kurt Lejaeghere and
• Veronique Van Speybroeck

Beilstein J. Nanotechnol. 2014, 5, 1738–1748, doi:10.3762/bjnano.5.184

• metal centers, and found quasi-1D ferromagnetic behavior with quenched antiferromagnetic inter-chain interactions. Stroppa et al. [40] and Wang et al. [41] investigated Cu-based MOFs with an ABX3 perovskite architecture and found these to exhibit quasi-1D multiferroic behavior. In both cases, Jahn

• than the intra-chain coupling. As a result, one expects the MIL-47(V) system to present (quasi-)1D behavior at low temperatures. The ratio of the coupling constants is much larger than those found for other MOFs (a factor of 5 was found for Cu-based perovskite MOFs [40], a factor of about 20 was found

Functionalized nanostructures for enhanced photocatalytic performance under solar light

• Liejin Guo,
• Dengwei Jing,
• Maochang Liu,
• Yubin Chen,
• Shaohua Shen,
• Jinwen Shi and
• Kai Zhang

Beilstein J. Nanotechnol. 2014, 5, 994–1004, doi:10.3762/bjnano.5.113

• with separated functions, such as separated oxidation and reduction sites is one of the effective approaches to the enhancement of the activity of the existing semiconductors. Perovskite ABO3 is another group of metal oxide materials deserving in-depth exploring. Most of metal elements can be stably