Multi-walled carbon nanotubes (MWNTs) bearing hydroxyl groups (MWNTols) on the exterior surface have been synthesized by an alkaline-mediated hydrothermal treatment of MWNTs under autogenous pressure at 180 °C. X-Ray photoelectron spectroscopy shows that content increases with concentration sodium hydroxide utilized. FT-IR hemiketals were incorporated into structure MWNTols. The prepared MWNTols are highly soluble in polar solvents such as water, methanol, butanone and tetrahydrofuran, to...

Crystalline Pt nanoparticles were electrolessly deposited on poly(acrylic acid) (PAA) grafted multiwalled carbon nanotubes (MWNTs). The density and uniformity of MWNTs found dependent the PAA grafting density, while their morphologies tailored by addition NO3− Cu2+ ions. catalytic activity selectivity hydrogenation α,β-unsaturated aldehyde, citral, Pt/MWNTs nanocomposites with different was studied. irregularly shaped polycrystalline showed highest conversion 92.2%, in comparison to 24.7%...

Polyacrylonitrile (PAN)-based activated carbon fibers are renowned for their exceptional adsorption properties, with precise pore structure control being critical enhancing selectivity. This study, the first time, employs high-intensity synchrotron radiation small-angle X-ray scattering (SAXS) to investigate carbonization and activation processes of PAN-based pre-oxidized under a dioxide (CO2) atmosphere, quantitatively characterizing evolution from nanometer mesoscopic scale. During stage,...

The development of a rapid and stable luminescence detection method is great significance to human health the protection ecological environment. In this work, new luminescent...

Molybdenum disulfide (MoS2) is a promising catalyst for hydrogen evolution through water electrolysis with low cost and high efficiency, but its performance can be further improved. Using sodium molybdate (Na2MoO4·2H2O) thiourea (NH2CSNH2) as raw materials, MoS2 was prepared by the hydrothermal method. Ni-doped MoS2(Ni-MoS2) using nickel dichloride dihydrate (NiCl2·2H2O) Ni source doping into Under conditions of different temperatures (190 °C, 200 210 °C) molar ratios (2%, 3%, 4%), optimum...

Single-walled carbon nanotubes (SWNTs) exhibit unique thermal and electrical conductivity high mechanical strength. The ability to effectively functionalize the SWNT surface control their dispersion in a polymer matrix will be crucial exploit physical properties nanocomposites. Here we report first example of grafting polymers onto SWNTs poor solvent through "fishing" process. act as "fishhooks", "living" radicals are "fish", which enthalpically favored absorb continue propagate until all...

A fast method based on Fe3O4 magnetic nanoparticles (Fe3O4 MNPs) modified QuEChERS integrated to dispersive liquid-liquid microextraction (DLLME) coupled with gas chromatography-mass spectrometry was established for the determination of 8 organochlorine pesticides (OCPs) in green leafy vegetables. The factors involved purification by and concentration DLLME were optimized. In process, MNPs used as a new impurity adsorbent after sample extraction procedure acetonitrile, which achieved phase...

Abstract Carbon nanotubes (CNTs) are capable of traversing cellular membranes by endocytosis and therefore promising materials for use in imaging drug delivery. Unfortunately, pristine CNTs practically insoluble tend to accumulate inside cells, organs tissues. To overcome the poor dispersibility toxicity CNTs, hydrophilic functionalization has been intensively investigated. Water‐soluble multi‐walled carbon (MWCNTs) were prepared situ polymerization acrylic acid a solvent poly(acrylic acid)...

Substituting the smaller theoretical applied potential of urea oxidation reaction (UOR) for larger anodic water electrolysis (oxygen evolution (OER)) is critical energy requirement in hydrogen. In this work, a brief and scalable strategy was presented to synthesize nickel sulfide multi-walled carbon nanotube composites on Ni foam, denoted as Ni3S2/MWCNTs/NF. Electrochemical measurements show that Ni3S2/MWCNTs/NF can be an efficient electrocatalyst UOR. A 1.338 V required at current density...

Sonochemical synthesis and optical property of palm-leaf-like ZnO-Bi 2 O 3 nanocomposite have been reported. The analysis XRD approves that the material is . composition product has analysed by XPS it concluded molecular ratio Bi :ZnO 1:4.6. SEM images show morphology stelliform dendrite. sonication time appears to be a critical parameter for shape determination. Also, presence 3+ vital formation dentrites. Photoluminescence spectra at room temperature products synthesised materials possess...

In the title compound, [Co(C(7)H(5)O(2))(2)(C(5)H(6)N(2))(2)], Co(II) atom is hexa-coordinated by four O atoms from two benzoate anions, and N 2-amino-pyridine mol-ecules, resulting in a distorted octa-hedral geometry. Both anions act as bidentate ligands both mol-ecules are coordinated to metal through their pyridyl atoms. The crystal packing stabilized inter-molecular N-H⋯O hydrogen bonds, C-H⋯π, π-π stacking inter-actions involving mol-ecules.

In the title compound, [Cd(C7H5O2)2(C5H6N2)2], CdII atom is hexa­coordinated by four O atoms from two crystallographically independent benzoate anions, and pyridine N 2-amino­pyridine mol­ecules in a distorted octa­hedral geometry. crystal structure, metal complexes are connected N—H⋯O hydrogen bonding between carboxylate of anions amino H ligands. The amino­pyridine rings stacked direction crystallographic axis, indicating π–π stacking inter­actions present [centroid-centroid distance =...

Carboxyl ruthenium oxide [RuO δ (OOCCH 3 ) λ ·nH 2 O] thin film has been prepared by in-situ decomposition using RuCl ·3H O isopropanol solution as precursor. Thermal and capacitive properties of the have investigated Fourier transformation infrared spectroscopy, X-ray diffraction electrochemical analyzer, respectively. Our results showed that RuO generated from below 300°C, transformed into crystal at 400°C. played an important role on attenuation specific capacitance film. Specific reached...

Abstract The effect of solid content conductive silver paste on the film thickness, microstructure screen-printed front contact, and electrical performance crystalline silicon solar cells was investigated. Three different pastes were tested. It is found that strongly affects thick film, cells. with 84 wt.% has higher viscosity density than ones 82 83 wt.%. After sintering, Ag electrode prepared using a larger thickness corresponding cell exhibits photoelectric conversion efficiency under...

The Cd atom in the title complex, [Cd(C2H3O2)(NCS)(C7H8N4O)(H2O)]·H2O, is coordinated by one neutral Schiff base ligand, acetate anion, thio­cyanate anion and water mol­ecule, forming a distorted penta­gonal–bipyramidal geometry. S ligand occupy apical positions of coordination polyhedron. acts as bidentate through carboxylate O atoms. base, derived from condensation pyridine-2-carbaldehyde semicarbazone, tridentate coordinating metal amide, imine pyridyl N atoms meridional fashion. crystal...

The Zn atom of the title complex, [Zn(NCS) 2 (C 7 H 8 N 4 O) (H ] or [Zn(SCN) (H-Pysc) [H-Pysc = -aminocarbonyl- ′-(3-pyridylmethylene)hydrazine], derived from condensation pyridine-3-carbaldehyde and semicarbazone, is located at a crystallographic centre inversion octahedrally coordinated by two thiocyanate anions, aqua molecules neutral Schiff base ligand H-Pysc. act as monodentate ligands coordinating metal through pyridyl atom, whereas amide O imine atoms remain uncoordinated. crystal...

The title complex, [MnCl2(C21H19N3)]·0.5CH2Cl2 or [MnCl2(Plep)]·0.5CH2Cl2 {Plep is 2,6-bis­[1-(phenyl­imino)eth­yl]pyridine, derived from the condensation of 2,6-diacetyl­pyridine and aniline in methanol} composed two crystallographically independent [MnCl2(Plep)] neutral units a CH2Cl2 solvent mol­ecule. Both complex mol­ecules have similar geometries which MnII atom coordinated by N atoms pyridine imine groups Schiff base, chloride anions distorted trigonal–bipyramidal geometry. structure...

In the title compound, [Co(C(9)H(8)NO(3))(C(12)H(8)N(2))(2)(H(2)O)]NO(3)·H(2)O, Co(II) atom is six-coordinated by a carboxylate O of hippurate (Hc) anion, water and four N atoms from two 1,10-phenanthroline ligands in distorted octa-hedral geometry. The uncoordinated hippuric acid anion involved an intra-molecular hydrogen bond to coordinated mol-ecule. crystal packing stabilized inter-molecular O-H⋯O bonds involving Hc anions, mol-ecule, nitrate

In the title complex, [Mn(SCN)2(H-Pysc)2(H2O)2] {H-Pysc = 3-[2-(amino­carbon­yl)hydrazonometh­yl]pyridine, C7H8N4O}, MnII, located at an inversion centre, is coordinated by two thio­cyanate anions, water mol­ecules and of neutral Schiff base ligand H-Pysc, forming octa­hedral configuration. The acts as a monodentate ligand, coordinating to metal through pyridyl N atom, whereas amide O imine atoms remain uncoordinated. complex are held together inter­molecular hydrogen bonds into...