The sample locations, descriptions, grain shape, and major elements of sand-sized detrital sediments from the Hulunbeier Sandy Land

The supporting datasets of Liang and Yang's research article submitted to Journal of Geophysical Research-Earth Surface. Please cite the research paper when using this data. The research article information: Liang, P., & Yang, X. (2023). Grain shape evolution of sand-sized sediments during transport from mountains to dune fields. Journal of Geophysical Research: Earth Surface, 128, e2022JF006930. https://doi.org/10.1029/2022JF006930</p

From Inorganic to Organic Strategy To Design Porous Aromatic Frameworks for High-Capacity Gas Storage

Developing high-capacity gas storage materials is still an important issue, because it is closely related to carbon dioxide capture and hydrogen storage. This work proposes a “from inorganic to organic” strategy, that is, using tetrakis­(4-bromophenyl)­methane (TBM) to replace silicon in zeolites, to design porous aromatic frameworks (PAF_XXXs) with extremely high pore volume and accessible surface area, because the silicon atom in the silicon-based zeolites and the TBM ligand have the same coordination manner. Through the adoption of this strategy, 115 organic PAF_XXXs based on the inorganic zeolite structures were designed. These designed PAF_XXXs have the same topology with the corresponding matrix zeolites but possess significantly higher porosity than matrix zeolites. In general, the surface area, pore volume, and pore size of PAF_XXX are in the ranges of 4600–6000 m²/g, 2.0–7.9 g/cm³, and 10–55 Å, respectively. In particular, the hydrogen uptake of PAF_RWY reaches 5.9 wt % at 100 bar and 298 K, exceeding the DOE 2015 target (5.5 wt %) for hydrogen storage. Moreover, PAF_RWY is also a promising candidate for methane storage and CO₂ capture, owing to its extremely high pore volume and accessible surface area

Photoluminescent Europium-Containing Inner Sphere Conducting Metallopolymer

The oxidative electrochemical polymerization of a new Eu(III) complex that contains 3,4-ethylenedioxythenyl (EDOT) groups has been carried out, resulting in the formation of an inner sphere conducting metallopolymer. Preliminary photophysical measurements reveal energy transfer to the europium center and the corresponding stimulated red emission. Importantly, the europium-containing conducting metallopolymer displays only a europium-based emission profile leading to excellent color purity in this material

Holographic Lactate Sensor

Measurement of blood l-lactate is used to assess and monitor exercise performance in sports medicine. This report describes the initial development of a holographic sensor, which employs a synthetic receptor, to enable the selective and continuous real-time measurement of l-lactate for eventual in vivo application. Three boronic acid-based receptors have been synthesized, integrated into thin acrylamide hydrogel films, and then subsequently transformed into holographic sensors. Changes in the replay wavelength of the sensors were used to characterize the swelling behavior of the matrix as a function of l-lactate concentration. It was found that the incorporation of 3-acrylamidophenyl boronic acid into an acrylamide hydrogel produced the largest response toward l-lactate. The effects of hydrogel composition, fluctuating l-lactate concentrations, and the response of potential interfering agents to the sensor have been investigated

Metal-Controlled Assembly of Near-Infrared-Emitting Pentanuclear Lanthanide β-Diketone Clusters

Metal-controlled assembly results in a series of lanthanide clusters with the formula of Ln5(DBM)10(OH)5·n(solvent) (DBM = dibenzoylmethanido; Ln = Nd (1), Gd (2), Er (3), and Yb (4); solvent = CH3CN or toluene). These pentanuclear clusters with square-pyramidal core structures have been characterized by X-ray diffraction analysis. Clusters 1, 3, and 4 show typical near-infrared (NIR) luminescence upon excitation at 350 nm, which represents the first examples of pentanuclear lanthanide clusters with sensitized NIR emission

Self-Assembly of Luminescent Hexanuclear Lanthanide Salen Complexes

Four hexanuclear lanthanide salen complexes [Ln6(L1)4(OH)4(MeOH)4]·2Cl·4MeOH (Ln = Nd (1), Tb (2)), [Eu6(L2)4(OH)4(MeOH)2(EtOH)2(H2O)2]·2Cl·3EtOH·H2O (3), and [Er6(L2)4(OH)4(EtOH)2(H2O)2]·2Cl·2EtOH·MeOH·H2O (4) are formed from the reactions of LnCl3·6H2O and flexible Schiff base ligands H2L1 and H2L2 (H2L1 = N,N′-bis­(3-methoxysalicylidene)­(propylene-2-ol)-1,3-diamine, H2L2 = N,N′-bis­(salicylidene)­(propylene-2-ol)-1,3-diamine). The structures of 1–4 were determined by single crystal X-ray crystallographic studies, and their luminescence properties were determined

Self-Assembly of Luminescent Hexanuclear Lanthanide Salen Complexes

Four hexanuclear lanthanide salen complexes [Ln₆(L¹)₄(OH)₄(MeOH)₄]·2Cl·4MeOH (Ln = Nd (<b>1</b>), Tb (<b>2</b>)), [Eu₆(L²)₄(OH)₄(MeOH)₂(EtOH)₂(H₂O)₂]·2Cl·3EtOH·H₂O (<b>3</b>), and [Er₆(L²)₄(OH)₄(EtOH)₂(H₂O)₂]·2Cl·2EtOH·MeOH·H₂O (<b>4</b>) are formed from the reactions of LnCl₃·6H₂O and flexible Schiff base ligands H₂L¹ and H₂L² (H₂L¹ = <i>N</i>,<i>N</i>′-bis­(3-methoxysalicylidene)­(propylene-2-ol)-1,3-diamine, H₂L² = <i>N</i>,<i>N</i>′-bis­(salicylidene)­(propylene-2-ol)-1,3-diamine). The structures of <b>1</b>–<b>4</b> were determined by single crystal X-ray crystallographic studies, and their luminescence properties were determined

Metal-Controlled Assembly of Near-Infrared-Emitting Pentanuclear Lanthanide β-Diketone Clusters

Metal-controlled assembly results in a series of lanthanide clusters with the formula of Ln5(DBM)10(OH)5·n(solvent) (DBM = dibenzoylmethanido; Ln = Nd (1), Gd (2), Er (3), and Yb (4); solvent = CH3CN or toluene). These pentanuclear clusters with square-pyramidal core structures have been characterized by X-ray diffraction analysis. Clusters 1, 3, and 4 show typical near-infrared (NIR) luminescence upon excitation at 350 nm, which represents the first examples of pentanuclear lanthanide clusters with sensitized NIR emission

Photoluminescent Europium-Containing Inner Sphere Conducting Metallopolymer

The oxidative electrochemical polymerization of a new Eu(III) complex that contains 3,4-ethylenedioxythenyl (EDOT) groups has been carried out, resulting in the formation of an inner sphere conducting metallopolymer. Preliminary photophysical measurements reveal energy transfer to the europium center and the corresponding stimulated red emission. Importantly, the europium-containing conducting metallopolymer displays only a europium-based emission profile leading to excellent color purity in this material

Eco-Friendly Fabricated Porous Carbon Nanofibers Decorated with Nanosized SnO_<i>x</i> as High-Performance Lithium-Ion Battery Anodes

In this work, one-dimensional polyvinylpyrrolidone-derived porous carbon nanofibers decorated with SnO_<i>x</i> nanoparticles (denoted as SnO_<i>x</i>@PCNFs) were prepared by an electrospinning technique, followed by a simple one-step heat treatment and a postetching process. The structural evolution of SnO_<i>x</i> and the morphological change of the carbon nanofiber webs during the heat treatment are investigated by varying the content of the SnO_<i>x</i> precursor in the electrospinning solutions. The highly interconnected pores, created by etching off the in situ generated SiO₂ template in the carbon nanofibers, are beneficial for the easy penetration of Li⁺-carrying electrolyte into the nanocomposites and thus enable the direct contact between embedded SnO_<i>x</i> nanoparticles and electrolyte. When tested as anode materials for lithium-ion batteries, SnO_<i>x</i>@PCNFs with optimal SnO_<i>x</i> component show outstanding initial reversible capacity of 1057 mA h g^–1 at 0.2 A g^–1, long cycling capability (511 mA h g^–1 at 1 A g^–1 after 900 cycles), and good rate performance (323 mA h g^–1 at 2 A g^–1). The remarkable electrochemical properties of the nanocomposites can be attributed to the highly interconnected pores, high surface area, and well-controlled SnO_<i>x</i> nanoparticles