Rhodium metal catalysts are used in wide a range of applications, including automotive catalytic converters for NO reduction, N2O decomposition, and CO oxidation. 1 7 Theoretical and experimental studies have found that, under realistic environmental conditions, rhodium surfaces can oxidize, forming thin films or thicker bulk oxides. In the case of CO oxidation, it has been shown that the forma...

Uniform metal iron ellipsoidal particles of around 200 nm in length were obtained by reduction and passivation of alumina-coated a – Fe2O3 ~hematite! particles under different conditions of temperature and hydrogen flow rate. The monodispersed hematite particles were prepared by the controlled hydrolysis of ferric sulfate and further coated with a homogeneous thin layer of Al2O3 by careful sele...

10 The influence of structure, phase composition, system dispersity and particle morphology of Fe2O3and In2O3-based thin film layers on the electrical parameters of the corresponding gas sensors was studied in this paper. High selectivity and sensitivity of heterostructural -Fe2O3/In2O3 thin film sensors in the detection of alcohols has been here established. As it was found, the above mentione...

Hematite (α-Fe2O3) and magnetite (Fe3O4) nanowires with the diameter of about 100 nm and the length of tens of micrometers have been selectively synthesized by a microemulsion-based method in combination of the calcinations under different atmosphere. The effects of the precursors, annealing temperature, and atmosphere on the morphology and the structure of the products have been investigated. ...

Magnetic iron oxide, maghemite (Fe2O3) nanoparticles with covalent surface-bound CO-releasing molecules (CORMs) can be triggered to release CO through heating in an alternating magnetic field. In the proof-of-concept study the rate of CO-release from [RuCl(CO3)(μ-DOPA)]@maghemite nanoparticles was doubled upon exposure to an external alternating magnetic field (31.7 kAm(-1), 247 kHz, 25 °C, 39....

Multilayer iron-doped indium-saving indium–tin oxide (ML ITO50:Fe2O3) thin films with high conductivity and transmittance in the visible spectrum have been fabricated by sputtering method. Structures consisting of very layer conventional indium tin (90 mass% In2O3–10 SnO2) reduced content In2O3 (ITO50:Fe2O3) to 50 are discussed. By optimizing oxygen flow rate layer, lowest volume resistivity 3....

Irradiation of sterilized aqueous solution of ammonium formate and ammonia with UV light in the presence and or absence of certain inorganic sensitizers for 25 hrs. gave six ninhydrin positive products in appreciable amounts. Out of the six products observed fiver were characterized as lysine, serine, glutemic acid, n-amino butyric acid and leucine. The sensitizing effect of additives on ammoni...

in the past decade, magnetic nanomaterials have attracted much attention due to their physical properties and technological applications. in this work, α-fe2o3 nanoparticles were first synthesized via a simple co-precipitation method using iron chloride hexahydrate (fecl3.6h2o) as precursor and ammonia solution as precipitator. the samples were then characterized by high resolution transmission...