Hydrothermal Synthesis and Shape-Reactivity Correlation Study of Automotive Three-Way Nanocatalyst.

The widely employed cerium based oxide three-way catalysts drastically reduce many of the critical pollutants (e.g., CO, NOx, and hydrocarbons) in automobile traffic. The nearly unsurpassed performance of the cerium oxide redox system is, however, limited to rather high temperatures (>600oC), which adversely effects the fuel efficiency of the engine-exhaust system. During cold start conditions, this is especially problematic and provides the primary impetus for the development of lower temperature catalysts. This proposal will specifically tackle the following objectives: (1) prepare a set of high surface-area rare-earth oxide powders (CeO2, PrO2, TbO2) with controlled particle size and morphology using a solution-based hydrothermal method; (2) determine the macroscopic/bulk properties of the materials; and (3) investigate the correlation between nanoparticle morphology/size and low-temperature activity.

Language

  • English

Project

  • Status: Active
  • Funding: $99052.00
  • Contract Numbers:

    DTRT06-G-0041

  • Sponsor Organizations:

    Youngstown State University Center for Transportation and Materials Engineering

    Youngstown State University
    One University Plaza
    Youngstown, OH  United States  44555
  • Performing Organizations:

    Youngstown State University, Ohio

    Center for Transportation & Materials Engineering
    One University Plaza, Moser Hall
    Youngstown, OH  United States  44555
  • Principal Investigators:

    Wang, Ruigang

  • Start Date: 20120518
  • Expected Completion Date: 0
  • Actual Completion Date: 20130818
  • Source Data: RiP Project 32187

Subject/Index Terms

Filing Info

  • Accession Number: 01467101
  • Record Type: Research project
  • Source Agency: Youngstown State University Center for Transportation and Materials Engineering
  • Contract Numbers: DTRT06-G-0041
  • Files: UTC, RiP
  • Created Date: Jan 3 2013 3:28PM