Herein we analyze corundum-like titanium oxide nanomaterials synthesized by topotactic reduction of TiO2nanoparticles. The structure is probed using X-ray pair distribution functions, and the electronic properties are examined using hard X-ray photoelectron spectroscopy and electron energy loss spectroscopy....
A topotactic reduction of the stoichiometric sample performed at 600, 700, and 800 掳C, in H2/N2 flows, leads to the oxygen-deficient double perovskites, Sr2Fe1.33Mo0.66O6 with increasing values. The evolution of the crystal structure upon reduction has been studied from XRPD and NPD data. ...
Preparation of Sr7Mn4O13F2 by the topotactic reduction and subsequent fluorination of Sr7Mn4O15.manganese, Mnstrontium, Srfluorine, Fstructure (solids and liquids)ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading ...
The topotactic electrochemical reduction of YBa2Cu3O7 to the hydrogen bronze H0.66[YBa2Cu3O7] via electron/proton transfer in high ionic strength aqueous electrolytes at ambient temperature is reported. In situ X-ray diffraction studies of the cathodic reduction reveal the existence of an initial ...
采用α-FeOOH(平均长度为50nm,平均轴比为14)和BaCO_3 及添加离子经局部规整反应制备针状钡铁氧体。2) topotactic reaction 局部规整反应 1. The nitrides with high specific surface area from oxide precursor can be prepared through temperature-programmed reduction via topotactic reaction in ammonia or nitr...
The products of cathodic reduction are ternary phases A xMo 3X 4. Mobilities of the exchangeable cations are rather high inside the solid and are responsible for high reaction rates. Cathodic reduction of Mo 3S 4 and Mo 3Se 4 represents a suitable method for the preparation of both ...
Génin, J.M.R., Ruby, C., Géhin, A., Refait, Ph.: Synthesis of green rusts by oxidation of Fe(OH)2, their products of oxidation and reduction of ferric oxyhydroxides; E h–pH Pourbaix diagrams. C.R. Geosciences 338, 433 (2006) CrossRef Ruby, C., Upadhyay, C., Géhin, A...
Electrocatalytic carbon dioxide reduction to formate is desirable but challenging. Current attention is mostly focused on tin-based materials, which, unfortunately, often suffer from limited Faradaic efficiency. The potential of bismuth in carbon dioxide
Topotactic Reduction of Complex Manganese Oxides Mixed-valent manganese (III/IV) perovskite and Ruddlesden-Popper oxides have received considerable attention due to the observation of strong coupling between spin, charge and lattice degrees of freedom in these materials. Little attenti... M Hayward - ...
Room temperature topotactic oxidation of lanthanum cobalt oxide La2CoO4.0Experimental/ crystal structureintercalation compoundslanthanum compoundslattice constantsoxidationreduction (chemical)X-ray diffraction/ topotactic oxidationintercalation mechanismO 2 transport...