Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Reexamination Certificate
2005-11-15
2005-11-15
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
C204S157300, C204S157490, C204S157520, C423S244100, C423S648100, C423S576500, C502S216000, C502S343000
Reexamination Certificate
active
06964755
ABSTRACT:
A high activity catalyst is obtained by oxidizing and modifying the surface of zinc sulfide by hydrogen peroxide. An oxidation treatment is carried out in basic aqueous solution. The high activity photocatalyst is added to the basic aqueous solution in which hydrogen sulfide is dissolved to recover hydrogen and sulfur under low energy. Thus, the inexpensive high activity photocatalyst having a high catalytic activity and a long duration of life is realized and hydrogen gas is efficiently generated under little energy.
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Kasuya Atsuo
Tohji Kazuyuki
Hertzog Ardith E.
Japan Science And Technology Agency
Johnson Doyle B.
Reed Smith LLP
Silverman Stanley S.
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