Kinetics- Catalytic Combustor

Catalytic Combustor

Description: A small sample  of platinum-embedded ceramic grid is strongly heated with a burner. It glows red in a dark room. The burner is extinguished, but the gas is allowed to flow over the material, which continues to glow red.  This behavior mimics the automobile catalytic converter.

Source: Journal of Chemical Education (Art Ellis, MRSEC)

Year: 1989   Vol: 66  Page: 768

Keywords: Catalytic Combustor, Burner, Platinum, Catalyst

Rating:

Hazard: Some

  • Burn hazard
  • Flammability hazard

Effectiveness: Good

  • Results are clearly observable by audience
  • Good connection from demo to course material
  • High reliability
  • Time to results is medium
  • Mild effects are seen by audience

Difficulty: Medium

  • Procedures with some intermediate steps to results
  • Demo at non-standard conditions
  • Simple manipulations for most to perform
  • Prior practice recommended

Safety Precautions:

  • Eye protection required
  • Thermal gloves required
  • No flammable materials in demo area
  • ABC fire extinguisher on hand
  • Perform in a well-ventilated area
  • Perform on a thermally resistant surface

Class: Kinetics, Catalysis, Transition Metal Chemistry

Division: General

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