Fabrication and testing of low-temperature catalytically active washcoat materials for next-generation vehicle catalytic converters.

Details

• Creators:
  Wang, Ruigang
• Corporate Creators:
  Youngstown State University. Dept. of Chemistry
• Corporate Contributors:
  University Transportation Centers Program (U.S.)
• Subject/TRT Terms:
  • Catalytic converters
  • Low temperature
  • Oxidation
  • Carbon dioxide
  • Catalysis
  • Experiments
  • Fabrication
  • Coatings
  • Nanostructure materials
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Youngstown State University. Center for Transportation and Materials Engineering
• Abstract:
  With funds from this grant, Youngstown State University has purchased a ; Quantachrome iQ Chemisorption Analyzer and built a Chemical Reactor with Gas ; Chromatographer for catalyst characterization. PI has been involved in the purchase and ; installation of the instruments. The two new instruments were fully operational in the spring of ; 2013 and have so far been used for student research. For the research projects, we found that the ; nucleation and oxidation of Ce(OH)3 are critical steps which needs careful control in order to ; synthesize different morphological CeO2 nanocrystals. The combination of stirring and oxidation ; of suspension could destroy the nucleation and growth of Ce(OH)3, resulting in the formation of ; irregular CeO2 nanocrystals during the hydrothermal reactions. We demonstrated a general route ; for shape-controlled synthesis of CeO2 nanocrystals via mediation of the Ce(OH)3 seed before ; hydrothermal reactions. It was revealed that the shape of CeO2 support plays a critical role in ; metal-CeO2 catalytic activity for low-temperature CO oxidation. Out of this project, six refereed ; and four proceeding papers were published, along with several oral presentations made by PI and ; students.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26872/dot_26872_DS1.pdf
• File Type:
  [PDF - 1.15 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:81c498e70d06a4f9e38e64c95465aaa67ae2d3e3509e13393507ccc9103b3e5f