Characterization of Manganese Oxide Octahedral Molecular Sieve (M−OMS-2) Materials with Different Metal Cation Dopants

ABSTRACTUsing silver K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy, two different samples of silver-containing manganese oxide were analyzed in the fluorescence mode. For the first sample, silver ions from solution were sorbed onto one synthetic manganese oxide phase, namely cryptomelane (KxMn8O16, where l<x<2). The second sample was a silvermanganese oxide from Colorado. From the EXAFS analysis, silver was found to occupy two different sites in the synthetic sample. The natural samples from Colorado also exhibited a very similar coordination distances as the synthetic samples. In the low temperature spectrum of the synthetic sample at 10 K, the Ag-O peak was found to be missing and the amplitude of the Ag- Ag peak was approximately three times larger than the corresponding room temperature sample.

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Preparation and Characterization of Ni-Containing Aluminophosphate Molecular Sieves

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.418-420.617 ◽

2011 ◽

Vol 418-420 ◽

pp. 617-620

Author(s):

Ying Sun ◽

Lan Ying Ge

Keyword(s):

Oxidation State ◽

Molecular Sieves ◽

Molecular Sieve ◽

Crystalline Form ◽

Spectroscopic Techniques ◽

Tetrahedral Coordination ◽

Tetrahedral Geometry ◽

Nickel Ions ◽

Aluminophosphate Molecular Sieves

Aluminophosphate molecular sieve and Ni(II)-containing APO-5 materials were synthesized hydrothermally and characterized by various analytical and spectroscopic techniques. It indicates that the nickel ions with a divalent oxidation state can incorporate into the tetrahedral coordination in mesoporous aluminophosphate very well. The better crystallizing temperature is explored. A stronger crystalline form is obtained with the addition of HF. Further, microporous aluminophosphate molecular sieves and Ni(II) ions remain in a tetrahedral geometry even after calcination at 550 °C.

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Catalytic thermal decomposition of ammonium perchlorate using manganese oxide octahedral molecular sieve (OMS)

Catalysis Communications ◽

10.1016/j.catcom.2008.08.005 ◽

2008 ◽

Vol 10 (1) ◽

pp. 108-112 ◽

Cited By ~ 19

Author(s):

Tingming Fu ◽

Feiquan Liu ◽

Lin Liu ◽

Liwei Guo ◽

Fengsheng Li

Keyword(s):

Thermal Decomposition ◽

Manganese Oxide ◽

Ammonium Perchlorate ◽

Molecular Sieve ◽

Catalytic Thermal Decomposition

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Peroxymonosulfate activation and pollutants degradation over highly dispersed CuO in manganese oxide octahedral molecular sieve

Applied Surface Science ◽

10.1016/j.apsusc.2017.06.118 ◽

2017 ◽

Vol 422 ◽

pp. 754-762 ◽

Cited By ~ 29

Author(s):

Jun Li ◽

Peng Ye ◽

Jia Fang ◽

Manye Wang ◽

Deming Wu ◽

...

Keyword(s):

Manganese Oxide ◽

Molecular Sieve ◽

Highly Dispersed

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Microstructural characterization of the cycling behavior of electrodeposited manganese oxide supercapacitors using 3D electron tomography

Journal of Power Sources ◽

10.1016/j.jpowsour.2016.08.012 ◽

2016 ◽

Vol 328 ◽

pp. 318-328 ◽

Cited By ~ 8

Author(s):

N. Dalili ◽

M.P. Clark ◽

E. Davari ◽

D.G. Ivey

Keyword(s):

Manganese Oxide ◽

Electron Tomography ◽

Microstructural Characterization ◽

3D Electron ◽

Cycling Behavior

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The Experimental of Low Temperature Color Slip for Decorative on Earthenware Body

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.690.282 ◽

2016 ◽

Vol 690 ◽

pp. 282-285

Author(s):

Soravich Mulinta

Keyword(s):

Low Temperature ◽

Physical Properties ◽

Manganese Oxide ◽

Ferric Oxide ◽

Potassium Feldspar ◽

Raw Material ◽

Blue Color ◽

X Ray ◽

Yellow Color

The purpose of the study was to investigate the effects of dolomite body, frit and potassium feldspar on the properties of color slip for decorative method of color slip on earthen ware production. The characterization of raw material was analyzed by X-ray fluorescence (XRF). The experiment started with triaxial blend of dolomite body, frit and potassium feldspar in the defined ratio and then to painting of color slips on earthenware production. After that, firing specimens at 950 °C in oxidation atmosphere. Finally, the specimens were tested microstructure and physical properties. The results showed that the ratio of 50% dolomite body, 40% frit and 10% potassium feldspar were optimum properties for decorative on earthenware body. In color slip consisting of blue color added Cobalt oxide 1% ,Green colors added chromic oxide 10% , Gray color added manganese oxide 10% ,yellow color added stain 2225 10% and hazel color added ferric oxide 2 wt %.

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