Synthesis of inorganic multilayers on chromatographic supports

Multilayers of various metal oxides have been produced on typical chromatographic supports such as diatomaceous earth and silica gel. The layer thickness was characterized for phases based on iron and chromium. These data, as well as chromatographic evidence obtained on chromium oxide, suggest that the layers are homogeneous. Similar, but less well characterized layers of aluminum and titanium oxides have been obtained.

Download Full-text

Facile Preparation of Three-Dimensionally Ordered Macroporous Alumina, Iron Oxide, Chromium Oxide, Manganese Oxide, and Their Mixed-Metal Oxides with High Porosity

Chemistry of Materials ◽

10.1021/cm071823r ◽

2007 ◽

Vol 19 (23) ◽

pp. 5779-5785 ◽

Cited By ~ 138

Author(s):

Masahiro Sadakane ◽

Toshitaka Horiuchi ◽

Nobuyasu Kato ◽

Chigusa Takahashi ◽

Wataru Ueda

Keyword(s):

Iron Oxide ◽

Metal Oxides ◽

Manganese Oxide ◽

Chromium Oxide ◽

High Porosity ◽

Mixed Metal Oxides ◽

Mixed Metal ◽

Facile Preparation ◽

Ordered Macroporous

Download Full-text

LABORATORY TESTS ON INSECTICIDAL EFFECTIVENESS OF DISODIUM OCTABORATE TETRAHYDRATE, DIATOMACEOUS EARTH AND AMORPHOUS SILICA GEL AGAINST Sitophilus oryzae (L.) AND THEIR EFFECT ON WHEAT BULK DENSITY

Poljoprivreda ◽

10.18047/poljo.23.1.1 ◽

2017 ◽

Vol 23 (1) ◽

pp. 3-10 ◽

Cited By ~ 4

Author(s):

Zlatko Korunić ◽

◽

Vlatka Rozman ◽

Anita Liška ◽

Pavo Lucić

Keyword(s):

Bulk Density ◽

Silica Gel ◽

Amorphous Silica ◽

Laboratory Tests ◽

Diatomaceous Earth ◽

Sitophilus Oryzae ◽

Disodium Octaborate Tetrahydrate

Download Full-text

Sorption of Benzene Vapour on Silica Gel and Diatomaceous Earth-Silica Gel which were obtained from Silica Sol by Evaporation

Nippon kagaku zassi ◽

10.1246/nikkashi1948.75.1101 ◽

1954 ◽

Vol 75 (11) ◽

pp. 1101-1104

Author(s):

Yoshitom Iwakami

Keyword(s):

Silica Gel ◽

Diatomaceous Earth ◽

Silica Sol

Download Full-text

Transition metal oxides revisited: ELNES of metal L2,3 and oxygen K edges

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100153920 ◽

1989 ◽

Vol 47 ◽

pp. 390-391

Author(s):

Ondrej L. Krivanek ◽

James H. Paterson ◽

Helmut R. Poppa ◽

P. Rez

Keyword(s):

Transition Metal ◽

Energy Loss ◽

Metal Oxides ◽

Chromium Oxide ◽

Transition Metal Oxides ◽

Thin Metal Film ◽

Edge Structure ◽

Thin Oxide Films ◽

Fine Structures ◽

Electron Energy Loss

When examined at 0.5 eV or better energy resolution by electron energy loss spectroscopy (EELS), many inner shell loss edges begin to show new fine structures. Recently, we have been able to acquire inner shell loss spectra routinely at about 0.4 eV resolution, using the Gatan PEELS™ on the VG HB501 STEM. We have therefore decided to reinvestigate the energy-loss near-edge structure (ELNES) of oxygen K and metal L2,3 edges in first row transition metal oxides.Figure 1 shows the metal L2,3 edges from vanadium oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, and copper oxide. Except for the chromium oxide sample, which was prepared by crushing and dispersing grains of crystalline Cr2O3, samples were made by vapor-depositing a thin metal film onto rock salt, heating it in air at about 400° C while still on the substrate, and subsequently floating it off. The resultant thin oxide films were from the same sample batches as those used for the EELS Atlas, where they were identified as VOx, MnO2, Fe2O3, CoO, NiO, and CuO.

Download Full-text