© Валерий Доронин TOMSK, May 12 – RIA Tomsk. Scientists of Tomsk State University (TSU) developed a catalyst that catches and neutralizes the
dangerous exhaust gases of the car, and can also be used in industry to
clean the discharge gases from volatile organic compounds, the
university's website reported on Wednesday.
It is
specified that scientists of the Laboratory for Catalytic Research of
the TSU Faculty of Chemistry (LCR TSU) are working on the project to
develop catalysts based on nanoparticles of silver, platinum and cerium
oxide. It is supported by the Russian Science Foundation (RSF). The
fundamental basis for the creation of catalysts was published in the
prestigious world journal in the field of catalysis Applied Catalysis B:
Environmental (Q1).
"Scientists have created a new
polyfunctional material that combines the properties of a sorbent and
catalyst. The development of chemists will help solve environmental
problems: a new catalyst is capable of capturing and neutralizing
toluene, benzene, methanol and other hazardous substances of industrial
discharges and exhaust gases of vehicles," says the report.
It
is specified that scientists managed to pick up a combination of
Ag-CeO2/SBA-15 (silicon oxide with an ordered structure), which does not
contain expensive metals (platinum, palladium and gold), but it allows
to effectively solve the problem of emission of harmful substances in
the air.
"This problem is especially relevant during the
"cold start" of the car engine, when the greatest amount of hazardous
substances is emitted into the environment. The material allows
capturing them at ambient temperature and then neutralizing them to safe
substances during the subsequent heating of the catalytic block of the
car up to 150-250°C", employee of the TSU Laboratory for Catalytic
Research Grigory Mamontov is quoted.
It is reported that
this approach can also be used to purify industrial waste gases from
volatile organic compounds. The catalysts developed during basic
research can be adapted to the specific practical task of air
purification.