Au@UiO-66: a base free oxidation catalyst
We present the in situ synthesis of Au nanoparticles within the Zr based Metal Organic Framework, UiO-66.
Materials Literature
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Acid loaded porphyrin-based metal–organic framework for ammonia uptake
A porphyrin-based metal-organic framework is shown to be structurally stable towards acid loading using either hydrochloric or formic acid. The capacity of this material as an ammonia sorbent was analysed using micro-breakthrough experiments in both dry and humid ammonia flows. The acid loaded material exhibited excel…
Interfacial structure and wetting properties of water droplets on graphene under a static electric field
The behavior of water droplets located on graphene in the presence of various external electric fields (E-fields) is investigated using classical molecular dynamics (MD) simulations. We explore the effect of E-field on mass density distribution, water polarization as well as hydrogen bonds (H-bonds) to gain insight in…
Stimuli-responsive microgel-based etalons for optical sensing
Responsive polymers have found numerous applications over the years. This review highlights their use as components of photonic materials, with emphasis on responsive polymer-based etalons. The use of these materials for sensing and biosensing is detailed.
Ammonia detection by using flexible Lewis acidic sites in luminescent porous frameworks constructed from a bipyridinium derivative
A flexible bipyridinium ligand with Lewis acidic sites has been introduced into two isomorphous metal-organic frameworks to yield luminescent porous materials with subtriangular pore windows, which exhibit sensitive fluorescent response for ammonia molecules and can be proved at the molecular level by Raman spectrosco…
Influence of Growth Parameters on the Formation of Hydroxyapatite (HAp) Nanostructures and Their Cell Viability Studies
Morphology controlled hydroxyapatite (HAp) nanostructures play a vital role in biomedical engineering, tissue regenerative medicine, biosensors, chemotherapeutic applications, environmental remediation, etc. The present work investigates the influence of temperature, pH and time on the growth of HAp nanostructures usi…
Sub-ns triplet state formation by non-geminate recombination in PSBTBT:PC 70 BM and PCPDTBT:PC 60 BM organic solar cells
Transient absorption spectroscopy and multivariate curve resolution analysis is used to demonstrate triplet state formation in low-bandgap polymer:fullerene photovoltaic blends.
Metal–organic framework immobilized cobalt oxide nanoparticles for efficient photocatalytic water oxidation
Water oxidation reactions driven by visible light play an important role in solar fuel production. Recently, catalysts based on earth abundant elements, such as cobalt oxides, have been studied extensively. Out of many factors, the catalyst particle size certainly affects the photocatalytic activity. To reduce the cat…
Multi-responsive metal–organic lantern cages in solution
Soluble copper-based M4L4 lantern-type metal-organic cages bearing internal amines were synthesized. The solution state integrity of the paramagnetic metal-organic cages was demonstrated using NMR, DLS, MS, and AFM spectroscopy. 1D supramolecular pillars of pre-formed cages or covalent host-guest complexes selectively…
Evidence of monolayer formation via diazonium grafting with a radical scavenger: electrochemical, AFM and XPS monitoring
This paper analyzes the impact of the use of a radical scavenger on organic films generated by aryldiazonium electrografting in terms of thickness, morphology and chemical composition. Glassy carbon (GC) and pyrolyzed photoresist films (PPFs) were modified by electrochemical reduction of 4-nitrobenzenediazonium salt i…
Enhancing the mechanical and biological performance of a metallic biomaterial for orthopedic applications through changes in the surface oxide layer by nanocrystalline surface modification
Nanostructured metals are a promising class of biomaterials for application in orthopedics to improve the mechanical performance and biological response for increasing the life of biomedical implants. Surface mechanical attrition treatment (SMAT) is an efficient way of engineering nanocrystalline surfaces on metal sub…
Electroforming and resistive switching in silicon dioxide resistive memory devices
Electroforming and resistive switching data are presented and models are given addressing the unusual operating features of SiO 2 resistive memory.
Long-life, high-efficiency lithium/sulfur batteries from sulfurized carbon nanotube cathodes
Sulfurized carbon nanotubes (SCNT) with a high sulfur content (68%) have been produced with a unique method. Li–S cells comprised of the developed SCNT cathodes presented a long cycle life exceeding 1300 cycles and an extremely low capacity decay rate (0.025% per cycle) at 1/3 C rate. Moreover, their Coulombic efficie…
Facile, continuous and large-scale production of core–shell HMX@TATB composites with superior mechanical properties by a spray-drying process
Core–shell HMX@TATB composites with low shell content and compact shell structure were fabricated via a facile and effective spray-drying technique.
Synthesis of a novel organic–inorganic hybrid of polyaniline/titanium phosphate for Re( vii ) removal
The organic-inorganic hybrid material of polyaniline/titanium(IV) (PANI/Ti(HPO4)2) was synthesized by an oxidative polymerization reaction. The PANI/Ti(HPO4)2 was applied to remove Re(VII). The size of Ti(HPO4)2 nanoplates has no obvious effect on the sorption capacity. The effects of various environmental factors (su…
Spatially-confined lithiation–delithiation in highly dense nanocomposite anodes towards advanced lithium-ion batteries
Spatially-confined electrochemical reactions are firstly realized in a highly dense nanocomposite anode for high performance lithium ion batteries.
Nanoporous silicon prepared through air-oxidation demagnesiation of Mg 2 Si and properties of its lithium ion batteries
Nanoporous silicon has been prepared through the air-oxidation demagnesiation of Mg2Si at 600 °C for 10 hours (Mg2Si + O2 → Si + MgO), followed by HCl washing. Mg2Si was prepared from 200 mesh commercial Si at 500 °C for 5 h in an autoclave. The as-prepared Si exhibits a reversible capacity of 1000 mA h g(-1) at 36 A…
Palladium carbene complexes as persistent radicals
A series of palladium( ii ) persistent radical carbene complexes, [PC˙(sp 2 )P]PdX (X = Cl, Br, I), was synthesized from the nucleophilic carbene [PC(sp 2 )P]PdPMe 3 .
Fabrication of porous g-C 3 N 4 /Ag/Fe 2 O 3 composites with enhanced visible light photocatalysis performance
Porous graphitic carbon nitride (pg-C 3 N 4 ) synthetized by pyrolysis of urea was hybridized with Ag-doped Fe 2 O 3 to form a visible-light-driven photocatalyst pg-C 3 N 4 /Ag/Fe 2 O 3 via a simple chemical adsorption method.
Magnetic iron/carbon nanorods derived from a metal organic framework as an efficient heterogeneous catalyst for the chemical oxidation process in water
By one-step carbonization, metal organic frameworks (MOFs) can be conveniently turned into hierarchical hybrid materials which exhibit versatile functionalities.