The creation of metal catalysts with highly active surfaces is pivotal to meeting the strong economic demand chemical industry.

A new transparent iridium oxide (IrOx) film on fluorine-doped tin (FTO) electrodes were achieved from a homogeneous precursor complex solution by employing facile spin-coating technique. The composition of the nanostructure and crystallinity IrOx is tunable simple annealing treatment compact layer, which responsible for their significantly different electrocatalytic performances water oxidation. Transmission electron microscopy (TEM) observations showed uniformly dispersed small...

New multifunctional luminescent hybrid mesoporous silicas (LHMS) containing a tunable chemosensor diimine moiety inside the pore wall have been synthesized. XRD and TEM image analyses indicate formation of highly ordered 2D hexagonal mesophase from 1:3 mixture organosilica tetraethyl orthosilicate (TEOS) assisted by supramolecular assembly cetyltrimethylammonium bromide (CTAB); use precursor alone leads to disordered mesophase. 13C CP MAS, 29Si MAS NMR, UV−visible spectroscopic data show...

A simple route for the synthesis of a novel mesoporous zinc oxide material having wurtzite like nanocrystalline pore walls by using Schiff-base amine as template is reported, which shows very high BET surface area (456 m2 g−1) and remarkably enhanced photoconductivity photoluminescence at room temperature under visible light irradiation vis-à-vis bulk ZnO material.

The development of drug carriers based on nanomaterials that can selectively carry chemotherapeutic agents to cancer cells has become a major focus in biomedical research. A novel pH-sensitive multifunctional envelope-type mesoporous silica nanoparticle (SBA-15) was fabricated for targeted delivery human colorectal carcinoma (HCT-116). SBA-15 functionalized with folic acid (FA), and the material loaded water-insoluble flavonoid, quercetin (QN). Additionally, acid-labile magnetite Fe3O4...

Achieving a future sustainable carbon-neutral society requires efficient systems for water splitting to produce H 2 as alternatives fossil fuel. Prominent development of Ni-based oxygen-evolving electrocatalysts are reviewed.

A new mesoporous polymer, poly-triallylamine (MPTA-1), has been synthesized by a simple and facile in situ radical polymerization of triallylamine through organic–organic self-assembly anionic or anionic/non-ionic mixed surfactant systems. Powder XRD TEM image analysis suggests the presence disordered wormhole-like mesopores these samples. N2 sorption analyses reveal bimodal pore size distributions on nanoscale with moderately good surface areas (70–134 m2 g−1) for MPTA-1 Template-free...

Kleine Mesoporen sind effizienter: Ein mesoporöser Oxidhalbleiter (Wolfram(VI)-oxid) wurde bei 550 °C unter Verwendung eines einfachen einstufigen Verfahrens kristallisiert. Das hochkristalline mesoporöse WO3 hat eine extrem große Oberfläche, die zu einer gesteigerten photoelektrochemische Aktivität der Wasseroxidation (siehe Bild) im Vergleich einem WO3-Material mit zwischen den Partikeln führt.

Abstract Artificial photosynthesis has attracted great attention as a viable way of converting and storing solar energy into chemical fuels. One the primary challenges in developing an efficient artificial photosynthetic system is to facilitate sluggish kinetics water oxidation. Molecular oxidation catalysts (WOCs) that are based on transition metals offer advantages catalytic activity tuning by rational ligand design mechanistic investigations mechanism through experimental theoretical...

A new all-organic mesoporous cross-linked polymer (MCP-1) has been synthesized hydrothermally through in situ aqueous-phase radical polymerization of acrylic acid the presence a supramolecular assembly cationic surfactant cetyltrimethylammonium bromide (CTAB) as structure-directing agent (SDA) and N,N-methylene-bis-acrylamide cross-linker. After successful removal SDA molecules solvent extraction, gold nanoparticles (GNPs) stabilized positively charged tris(hydroxymethyl) aminomethane (TRIS)...

A new structure-directing agent, hexadecyl-2-pyridinyl-methylamine, L16, was prepared through Schiff base condensation between pyridine-2-carboxaldehyde and hexadecylamine followed by reduction of the imine with NaBH4. Mesoporous supermicroporous tin oxide particles crystalline pore walls were obtained a low-temperature sol–gel synthesis process using an anionic surfactant, sodium dodecylsulfate, respectively, as templates. Powder X-ray diffraction, transmission electron...

In recent years, several novel strategies for speeding up the slow kinetics of water oxidation reaction have attracted considerable attention generation O2. This is particularly important from environmental perspective. Here we report a SBA-15 type, 2D-hexagonal functionalized mesoporous organosilica material as support small Ag nanoparticles (NPs) by grafting silica surface with 3-aminopropyltriethoxysilane, followed chemical impregnation NPs at its surface, to obtain AgNPs@SBA-NH2...

A new N, S containing porous polymer is reported, which showed excellent Hg 2+ (3106 mg g −1 ) CH 3 + (691 uptakes.

Titania films having relatively uniform spherical pores were successfully fabricated using polystyrene-block-poly(ethylene oxide) (PSn-b-PEOm) diblock copolymers. Depending on the molecular weight of PSn-b-PEOm, varied from large mesopores (n = 40 000, m 53 000; ∼40 nm) to macropores 58 600, 71 ∼60 nm, n 100 150 ∼100 in diameter. It was confirmed that porous structures thermally stable with crystallization titania frameworks. Interconnectivity between reliant micellar arrangement hydrophobic...

Abstract We report the first accessible channel‐like open pore architecture of ordered 2D hexagonal mesoporous IrO 2 films and its utilization as an efficient anode for electrocatalytic water oxidation. A well‐ordered mesostructure circa 7 nm pores were obtained by a facile one‐pot soft‐templating strategy, employing [Ir(OH) 6 ] 2− precursor stabilized triblock copolymer “Pluronic F127” pore‐directing template. film calcined at 400 °C (∼70 thick) affords high surface area 512 m cm −3 times...

Reductive amination of carbonyls to primary amines is importance the synthesis fine chemicals; however, this reaction with heterogeneous catalysts containing earth-abundant metals under mild conditions remains scarce. Here, we show that nickel catalyst mixed oxidation states enables such low temperature (50 °C) and H2 pressure (0.9 MPa). The shows activity in both water toluene. high likely results from formation small (ca. 4.6 nm) partially oxidized nanoparticles (NPs) homogeneously...

New highly ordered 2D hexagonal mesoporous titanium silicate materials have been synthesized using a mixture of anionic (sodium lauryl sulfate, SDS) and cationic (cetyltrimethylammonium bromide, CTAB) surfactants as the structure-directing agent (SDA) in presence tartaric acid (TA) mineralizer Ti. XRD, N2 adsorption, TEM data indicate that these very high surface areas (1136−1418 m2 g-1) pore arrangements. adsorption studies further suggest that, addition to uniform mesopores, small...

Transparent semiconducting oxide (TiO2, SnO2 and ZnO) films having highly interconnected pores in the range of 30–200 nm were fabricated one-pot using polystyrene-block-poly(ethylene oxide) (PS-b-PEO) diblock copolymer. Such porous structures helpful for efficient transport bulky guest species such as proteins. Biosensing protocols constructed by biomolecules, namely, adsorbed DNA, antibody antigen–antibody (immunoassay). In DNA-based system, macroporous TiO2 film was most useful among...

The limited stock of classical nonrenewable energy sources has motivated researchers to explore efficient strategies for sustainable and renewable production. Hydrogen production via electrochemical water splitting is one the key solutions that can meet this demand. Today 3d transition metal based nanomaterials offer a huge opportunity in hydrogen evolution reaction (HER) splitting. Herein, we report an easy convenient synthesis route designing novel tetradentate phosphonate ligand...