(redirected fromManganese oxide) Also found in:Acronyms,Encyclopedia. manganese dioxide n. A black crystalline compound, MnO2, that is a strong oxidant and is used as a depolarizer of dry-cell batteries and in textile dyeing. American Heritage® Dictionary of the English Language, Fifth Edition...
Birnessite-type manganese oxide is a 2D layer-structure. It is formed by a regular distribution of Mn vacancies in the MnO crystal matrix, and the structure is generated by the removal of Mn atoms from the corners and faces in a doubled unit cell of MnO. Stainless steel mesh coated with...
† D. REINEN ET AL.: ' ''Colour, luminescence and bonding properties of tetrahedrally coordinated chromium (IV), manganese (V) and iron (VI) in various oxide ceramics'' ' JOURNAL OF ALLOYS AND COMPOUNDS Bd. 246, 1997, Seiten 193 - 208...
The manganese oxide materials from the Châtelperronian of the Grotte-du-Renne at Arcy-sur-Cure, Yonne, approximately 400 kilometres northeast of the Dordogne, were predominantly manganese dioxide as pyrolusite7,15 and had been ground to powder close to features usually interpreted as fire ...
V. et al. A bacterial isolate from the Black Sea oxidizes sulfide with manganese(IV) oxide. Proc. Natl Acad. Sci. USA 116, 12153–12155 (2019). CAS PubMed PubMed Central Google Scholar Ghiorse, W. C. & Ehrlich, H. L. Microbial biomineralization of iron and manganese. Catena Suppl...
To determine which of the given species exhibit color due to charge transfer, we need to analyze the oxidation states of manganese in each compound and the electronic transitions involved.1. Identify the oxidation states of manganese in
Therefore, we designed cerium/manganese oxide nanoparticles to treat RA in this study. Mn2+ catalysed the conversion from H2O2 to •OH, whereas Ce4+ transformed hydroxyl free radicals, which were intermediates of the Fenton reaction, into O2 molecules. Such Mn/Ce-mediated synergistic effect could...
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In addition, there is evidence of the interaction of the manganese oxide support with Pt species on its surface, especially for the sample with the lowest Pt loading. Finally, the XPS spectra also show that there is no Pt(0) in MP1 sample, but only Pt(II) and Pt(IV), shortened as ...
For the assessment of the relative fraction of Mn distributed between adsorbed MnII and Mn oxide phases, linear combination fitting of EXAFS was used. For this technique, three MnII standards, 6 MnIII,IV oxides, and 2 Mn oxides containing MnII were used to fit the spectra. EXAFS references...