Preparation, characterization, and catalytic performance of bismuth-aluminum binary-oxide layers and clusters on an Al2O3 surface

Article Abstract:

Bismuth oxide on AI2O3 was prepared using Bi(OEt)3 as a precursor and changing the Bi loading systematically and characterized the obtained samples by extended X-ray absorption fine structure (EXAFS) and X-ray photoelectron spectroscopy (XPS). Bismuth-aluminum (rich) binary oxide layers below 9 wt % Bi loading and bismuth (rich) - aluminum clusters above 9 wt % Bi loading was formed at the Al2O3 surface.

Aluminum, Photoelectron spectroscopy

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Effective deposition potential induced size-dependent orientation growth of Bi-Sb alloy nanowire arrays

Article Abstract:

Single-crystalline and highly preferentially oriented [Bi.sub.1-x][Sb.sub.x] alloy nanowire arrays are prepared into porous anodic alumina membrane by pulsed electrodeposition. Results reveal that the effective deposition potential controls the orientation and diameter of the [Bi.sub.1-x][Sb.sub.x] nanowire.

Inorganic Dye and Pigment Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Analytical Laboratory Instrument Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Inorganic pigments, Analytical instruments, Antimony & Lithopone Pigments, Antimony Compounds, Scanning Microscopy, Methods, Transmission electron microscopes, Electrodeposition

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Structure of MnOx/Al2O3 catalyst: A study using EXAFS, in situ laser Raman spectroscopy and ab initio calculations

Article Abstract:

The structure of a MnOx/Al2O3 catalyst used for ozone decomposition is evaluated using extended X-ray absorption fine structure (EXAFS) and in situ Raman spectroscopy. EXAFS results show that the manganese center is surrounded by four or five oxygen atoms with Mn-O distance of 0.21 nm.

Manganese, Optical properties, Extended X-ray absorption fine structure, Raman spectroscopy

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