The influence of porosity on nanoparticle formation in hierarchical aluminophosphates

• Matthew E. Potter,
• Lauren N. Riley,
• Alice E. Oakley,
• Panashe M. Mhembere,
• June Callison and
• Robert Raja

Beilstein J. Nanotechnol. 2019, 10, 1952–1957, doi:10.3762/bjnano.10.191

• average oxidation state (Auδ+, Figure S11, Supporting Information File 1) than the Au foil (Au0) [20]. In all cases the data was satisfactorily fit with a single Au–Au path, at a bond distance of 2.85–2.86 Å (Figure 3 and Table 1). The Au coordination number for all Au/SAPO-5 systems was found to be lower

• than the theoretical value of 12 for bulk Au foil, suggesting the formation of non-bulk Au systems. In both systems the coordination number was found to vary as AE < IW < WI, indicating AE produces smaller sized nanoparticles [21], despite WI having significantly lower Au loading. This again emphasises

• loading of the WI systems makes fitting infeasible. These measurements confirm that the different porosity of the two systems has only a subtle influence on the nanoparticle environment and coordination. A potential cause of this being the lack of porosity in the Au/MP-SAPO-5 species, hindering the

Long-term entrapment and temperature-controlled-release of SF₆ gas in metal–organic frameworks (MOFs)

• Hana Bunzen,
• Andreas Kalytta-Mewes,
• Leo van Wüllen and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2019, 10, 1851–1859, doi:10.3762/bjnano.10.180

• frameworks (MOFs); sulfur hexafluoride; Introduction Metal–organic frameworks (MOFs) are coordination polymers with organic ligands containing (potential) voids [1]. Their porosity and high surface area make them attractive materials for adsorption-based applications [2][3][4][5]. MOFs have been suggested

Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

• (Figure 11) [227]. The demonstrated network structures are connected by the coordination of terpyridine moieties to either cobalt or iron ions, and the synthesized films change their colour depending on the oxidation levels of the cobalt and iron ions. The colours of those MOF films can be modulated

Imaging the surface potential at the steps on the rutile TiO₂(110) surface by Kelvin probe force microscopy

• Masato Miyazaki,
• Huan Fei Wen,
• Quanzhen Zhang,
• Yuuki Adachi,
• Jan Brndiar,
• Ivan Štich,
• Yan Jun Li and
• Yasuhiro Sugawara

Beilstein J. Nanotechnol. 2019, 10, 1228–1236, doi:10.3762/bjnano.10.122

• low coordination and unique charge distribution [16][17][18][19]. In the case of TiO2, steps act as preferential sites for the adsorption of molecules and metal clusters [20][21][22], as active sites for catalytic reactions [23][24][25], and as the central elements of surface reconstructions [26][27

• distributed over a distance greater than 1 nm above the surface (z-direction). Therefore, the drop in CPD at the step reflected the intrinsic surface potential. There might occur an electron distribution by orbit splitting, because the coordination number is smaller on the step edges than on the terrace [18

• electron–hole recombination, increasing the quantum yield for the chemical reaction, and enhancing the catalytic reactivity. These results demonstrate novel properties of steps regarding the charge distribution, except for low coordination. The proposed dipole model should not be unique to TiO2 and should

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

• alkoxides, salts or coordination complexes, remain associated with the delaminated clay sheets, resulting in stable and efficient photoactive catalysts of particular interest for the removal of organic pollutants from wastewater [84][87][89][106][107][118][128]. Akkari and co-workers [118] have recently

Synthesis and characterization of quaternary La(Sr)S–TaS₂ misfit-layered nanotubes

• Marco Serra,
• Erumpukuthickal Ashokkumar Anumol,
• Dalit Stolovas,
• Iddo Pinkas,
• Ernesto Joselevich,
• Reshef Tenne,
• Andrey Enyashin and
• Francis Leonard Deepak

Beilstein J. Nanotechnol. 2019, 10, 1112–1124, doi:10.3762/bjnano.10.111

• MX–TX2–TX2, etc. [17][18][19][20]. The (distorted) rock-salt layer consists of two atomic planes. In the hexagonal TX2 lattice, the metal M atom is sandwiched between two chalcogen (X) atoms, in a trigonal bi-prism (2H) or octahedral (1T) coordination. The MX and TX2 layers are stacked together via

• , instead of the stable 2H-TaS2 (2H-NbS2) [35][38] polytype, the Nb-rich LaS–NbxTa1−xS2 slabs were all found to be in the 1T state, i.e., with octahedral coordination of the Ta(Nb) atoms in the NbxTa1−xS2 lattice. The charge transfer from the M (rare earth element) to the Ta atom of TaS2 in MS–TaS2 MLC has

• and the S atoms of TaS2 layer can be also observed (see the red regions between La and S in Figure 10a). Such localized and unidirectional enhancement of the electron density can be ascribed to the coordination (covalent-like) La–S(TaS2) bonding in the MLC. Noticeably, the substituting Sr atoms do not

Co-doped MnFe₂O₄ nanoparticles: magnetic anisotropy and interparticle interactions

• Bagher Aslibeiki,
• Parviz Kameli,
• Hadi Salamati,
• Giorgio Concas,
• Maria Salvador Fernandez,
• Alessandro Talone,
• Giuseppe Muscas and
• Davide Peddis

Beilstein J. Nanotechnol. 2019, 10, 856–865, doi:10.3762/bjnano.10.86

• ]. At the nanoscale, the cation distribution of the spinel structure is deeply affected by the local broken bonds that lead to a coordination variation at the particle surface. Furthermore, the oxidation of Mn2+ to Mn3+ is a common event that accrues in the transition from the bulk state toward

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

• to the walls of TMDC nanostructures is a challenging task. Coordinative chemistry is one approach used to face this challenge. The Tremel group has been successfully developing coordination-chemistry-based strategies for the functionalization of TMDC nanostructures for more than a decade. In 2006

• chalcophylic metal ions (nickel, iron, ruthenium) and leaving parts of the ion coordination sites free for docking to the chalcogen layer. The molecular structure of both NTA and TerPy enables performing versatile chemistry on the ligand. Cerium is a metal of the lanthanide series with versatile coordinative

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

• formation was observed, indicating that the bond strength depends on the electronic structure of the metal center. The same study indicates that the interaction of the coordinated metal center with the Ag substrate can be significantly reduced due to the coordination of NO group to the metal center. It was

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

• supramolecular porous frameworks (NMOF-1) by coordination directed self-assembly of hydrophobic alkyl chains (OPE-C18) with Zn(II) and coated glass substrates using its ethanolic dispersions (thickness of the coating not specified). However, WCA values in most of the previous studies [34][36][48][49][50][51][52

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

• the Mo-doped BN monolayer in the early hydrogenation steps is found to be spontaneous, which is distinct from the conventional catalysts. Mo, as a non-noble element, presents excellent catalytic performance with coordination to the BN monolayer, and is thus a promising transition metal for catalyzing

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

• –N bonding by this observation alone. To determine the possible Ti–N coordination, we investigated the N 1s peak for all three bases. The N 1s peaks are slightly asymmetric and require two components for a good fit (see Supporting Information File 1, Figure S1 for a collection of single element peak

• spectra for all samples before and after water treatment). This points towards at least some degree of Ti–N coordination, as N in the bases should only give rise to one nitrogen component (exemplified for thymine in Figure 13). This second component has an energy corresponding well with the reported

• the resulting bonding modes between metal and organic molecules. Determining the bonding modes for nucleobases with FTIR is not as straight forwards as for amino acids (as can be seen in [22]); however, comparing characteristic bands of nucleobases before and after coordination with the metal atom can

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

• -edge shape reveals an octahedral (Oh) symmetry, i.e., a local symmetry of MnO6 units, number of coordination = 6, which is in agreement with the perovskite structure [32]. The formal valence of Mn was estimated from the Mn K-edge position using reference values reported for the LaMnO3 compound [28

Intuitive human interface to a scanning tunnelling microscope: observation of parity oscillations for a single atomic chain

• Sumit Tewari,
• Jacob Bakermans,
• Christian Wagner,
• Federica Galli and
• Jan M. van Ruitenbeek

Beilstein J. Nanotechnol. 2019, 10, 337–348, doi:10.3762/bjnano.10.33

• one bond with other atoms) are pulled out to form an atomic chain can be understood by the fact that in metals the bond strength increases as the coordination number is decreased. This causes a single linear bond to become comparable to three bonds (for gold) in the bulk. Since our MD simulation uses

• an embedded atom potential that measures pair interactions, the effect of coordination number is automatically accounted for within the approximate atomic interaction force. Another interesting phenomenon from the electronic point of view that was also found experimentally [8] was that the

• nearest minimum during this manipulation. Thus the inelastic energy released on snapping in this process is small, which helps also in maintaining better coordination between the simulation and the experiment. In our manipulation method we first match the tip height in the simulation with respect to the

Removal of toxic heavy metals from river water samples using a porous silica surface modified with a new β-ketoenolic host

• Said Tighadouini,
• Smaail Radi,
• Abderrahman Elidrissi,
• Khadija Haboubi,
• Maryse Bacquet,
• Stéphanie Degoutin,
• Mustapha Zaghrioui and
• Yann Garcia

Beilstein J. Nanotechnol. 2019, 10, 262–273, doi:10.3762/bjnano.10.25

• coordination complexes with most transition metals [41][42]. The incorporation at the surface silica of a β-ketoenol group thus affords these hybrids the capacity to retain heavy metal ions. The group of C. Sanchez has prepared some mesoporous thin films functionalized with silylated β-ketoenol compounds as

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

• interstitial lattice sites accessible to the minority atom as well as higher coordination number. Therefore, a system in which minority atoms reside in such voids has a higher entropy S (and thus lower free enthalpy G) than a system in which they reside in a simple grain boundary. Therefore, the distribution

Zn/F-doped tin oxide nanoparticles synthesized by laser pyrolysis: structural and optical properties

• Florian Dumitrache,
• Iuliana P. Morjan,
• Elena Dutu,
• Ion Morjan,
• Claudiu Teodor Fleaca,
• Monica Scarisoreanu,
• Alina Ilie,
• Marius Dumitru,
• Cristian Mihailescu,
• Adriana Smarandache and
• Gabriel Prodan

Beilstein J. Nanotechnol. 2019, 10, 9–21, doi:10.3762/bjnano.10.2

• is correlated with the Zn doping degree. The third peak could be assigned to Sn–O–Zn coordination [41]. As shown in Figure 2d, the binding energy of the Zn2p3/2 and Zn2p1/2 transition peaks is 1021.7 and 1044.9 eV, respectively, which confirm the presence of Zn in the doped SnO2 nanoparticles, 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

• ; Introduction Metal-organic frameworks (MOFs) are a class of crystalline coordination polymers possessing potential voids. Their structures combine inorganic nodes, metal centres forming so-called secondary building units (SBU), with organic linkers. The diversity of possible SBUs coupled with organic linkers

Hybrid Au@alendronate nanoparticles as dual chemo-photothermal agent for combined cancer treatment

• Anouchka Plan Sangnier,
• Romain Aufaure,
• Laurence Motte,
• Claire Wilhelm,
• Erwann Guenin and
• Yoann Lalatonne

Beilstein J. Nanotechnol. 2018, 9, 2947–2952, doi:10.3762/bjnano.9.273

• ) are used in the treatment of a variety of bone diseases, such as osteoporosis, solid tumor bone metastases and myeloma bone disease [1][2][3][4]. BPs contain two phosphonate groups linked by a common carbon atom (P–C–P) binding divalent metal ions (Ca2+, Mg2+, and Fe2+) by coordination of the two

• phosphonate groups. The BP affinity for calcium is improved by adding a hydroxy (–OH) group, for instance in HMBP (hydroxylmethylene bisphosphonate), allowing for a tridentate coordination to Ca2+ ions (Supporting Information File 1, Figure S4) and leading to a high affinity to bone (hydroxyapatite (Ca10(PO4

• coordination of phosphonates as chelating groups. The –NH scissoring (1564 cm−1) and bending vibration bands (1675 cm−1) for alendronate were slightly shifted in the Au@alendronate NPs confirming the multilayer formation through anion/cation interactions due to the alendronate zwitterion form. These results

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

• integrated areas of the CV curves in Figure 6b suggested much larger drops of the specific capacitance of the WO3 hydrates compared to those of WO3. As shown in Figure 6c–e, the intercalated ions in WO3 hydrates are surrounded by weak hydrogen bonds, coordination bonds, and van der Waals forces, while the

Magnetic and luminescent coordination networks based on imidazolium salts and lanthanides for sensitive ratiometric thermometry

• Pierre Farger,
• Cédric Leuvrey,
• Mathieu Gallart,
• Pierre Gilliot,
• Guillaume Rogez,
• João Rocha,
• Duarte Ananias,
• Pierre Rabu and
• Emilie Delahaye

Beilstein J. Nanotechnol. 2018, 9, 2775–2787, doi:10.3762/bjnano.9.259

• , Tb3+ and Eu3+. The best sensitivities were obtained using the ratio between the emission intensities of Eu3+ (5D0→7F2 transition) and of the ligand as the thermometric parameter. [Tb0.97Eu0.03(L)(ox)(H2O)] was found to be one of the best thermometers among lanthanide-bearing coordination polymers and

• metal-organic frameworks, operative in the physiological range with a maximum sensitivity of 1.38%·K−1 at 340 K. Keywords: coordination network; imidazolium salt; lanthanides; magnetism; thermometry; Introduction Metal-organic coordination networks have been the subject of considerable research in the

• coordination networks can be obtained either by the use of specific luminescent organic ligands or by the use of main-group elements, d10 transition metals or of trivalent lanthanide ions for the inorganic moiety [13][14]. The luminescent properties of the trivalent lanthanide ions are particularly interesting

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

• accommodate such transition-metal ions as Mn2+ or Co2+ in the Td sites. This coordination is attractive for high ground-state transition cross-sections, so that the absorption saturation in the visible and near-IR can be observed. Moreover, the dopant ions can promote the absorption saturation due to the

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

• nanocellulose surfaces can improve their function as magnetite-based adsorbents for arsenic removal. It is proven that amino groups accessible for iron coordination result in a larger number of adsorption sites on the nanocellulose surface as compared to MFC. In addition, nanocellulose has also been proposed as

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

• mixture of lead oxides and metallic lead. The XRD pattern and EDS spectra of the sediment composition has been previously reported [16]. The formation of lead oxide is explained by the quasichemical Lewis interaction between lead ions and hydroxy groups on the ZnO surface as a result of coordination or

SERS active Ag–SiO₂ nanoparticles obtained by laser ablation of silver in colloidal silica

• Cristina Gellini,
• Francesco Muniz-Miranda,
• Alfonso Pedone and
• Maurizio Muniz-Miranda

Beilstein J. Nanotechnol. 2018, 9, 2396–2404, doi:10.3762/bjnano.9.224

• computational DFT approach provided evidence of ligand adsorption on positively charged adatoms of the silver nanostructured surface, in a very similar way to the metal/molecule interaction occurring in the corresponding Ag(I) coordination compound. Keywords: 2,2’-bipyridine; DFT; laser ablation; silica

• computational approach, which provides important information on the adsorption of different molecules on SERS-active metals [44][45][46][47]. Actually, the SERS bands observed in the Ag–SiO2 colloid appear quite similar to the Raman bands of the argentous coordination compound [42][48] Ag(I)(bpy)2, where the

• . The interaction of the molecule with Ag+ results in the formation of a complex characterized by a large charge transfer, more than half the electronic charge (Table 2). This model complex well reproduces the SERS frequencies, as well as those observed in the Raman spectrum of the Ag(I) coordination