Soot-catalyzed reactions

Journal Article · Fri Jan 01 04:00:00 UTC 1982 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.216.4551.1174· OSTI ID:5269235

Schryer, D R; Rogowski, R S; Cofer, III, W R

A potential problem associated with soot particles in the atmosphere is pointed out, namely, the catalytic activity of such particles for certain atmospheric chemical reactions, including the oxidation of sulfur dioxide to sulfate. Conversion of SO/sub 2/ to sulfate is widely recognized as a major source of acidity in clouds and rain water. A significant component of atmospheric sulfate may be generated by heterogeneous reactions rather than gas phase reactions. Heterogeneous conversion of SO/sub 2/ to sulfate on soot particles was demonstrated in laboratory studies by Novakov and his co-workers in 1974. The range of other atmospherically important reactions that may also be catalyzed by carbon is not known. It seems advisable to consider the catalytic properties of soot when assessing the potential impact of increasing diesel emissions. 8 references.

• Research Organization: National Aeronautics and Space Administration, Hampton, VA
• OSTI ID: 5269235
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 216; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ATMOSPHERIC CHEMISTRY
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
DIESEL ENGINES
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTANTS
POLLUTION SOURCES
SOOT
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNTHESIS
WASTES