Published August 30, 2013 | Version v1
Journal article Metadata-only

Mesoporous delafossite CuCrO2 and spinel CuCr2O4: synthesis and catalysis

Creators

  • 1. State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)
  • 2. Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106 (United States)
  • 3. Materials Science Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37830 (United States)
  • 4. Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA 93106 (United States)

Description

Delafossite CuCrO2 and spinel CuCr2O4 with mesoporous structures have been successfully synthesized using nanocasting methods based on a KIT-6 template. The functional activity of the mesoporous materials was evaluated in applications as heterogeneous catalysts. The activity for photocatalytic hydrogen production of the delafossite structures with different morphologies was characterized and the oxidation state changes associated with photocorrosion of Cu+ investigated using electron energy loss spectroscopy (EELS). Mg2+ doping was found to facilitate the casting of ordered structures for CuCrO2 and improves the photocorrosion resistance of delafossite structures. The mesoporous spinel CuCr2O4 nanostructures were found to be active for low temperature CO oxidation. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0957-4484/24/34/345704

Additional details

Identifiers

DOI
10.1088/0957-4484/24/34/345704;

Publishing Information

Journal Title
Nanotechnology (Print)
Journal Volume
24
Journal Issue
34
Journal Page Range
[8 p.]
ISSN
0957-4484

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44083976
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
CATALYSTS; CHROMIUM ALLOYS; COPPER ALLOYS; COPPER IONS; ENERGY-LOSS SPECTROSCOPY; HYDROGEN PRODUCTION; MAGNESIUM IONS; MORPHOLOGY; NANOSTRUCTURES; OXIDATION; OXIDES; PHOTOCATALYSIS; SPINELS; SYNTHESIS
Descriptors DEC
ALLOYS; CATALYSIS; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL REACTIONS; ELECTRON SPECTROSCOPY; IONS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS