Elements and ephemeris of comet 1898 VIII (Chase)
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چکیده
منابع مشابه
SYNERGIC PROMOTION OF CATALYST BY GROUP VIII B ELEMENTS
Group VIII B metal oxides supported on gamma-alumina were investigated as catalysts and promoters of MoO3 hydrodesulfurization catalysis. Superior promotion was observed in PbO promoted catalyst compared to that of CoO, the typically accepted promoter. Other metal oxides, SnO and Ho2O3 exhibited reasonable hydrodesulfurization catalysis promotion but lower than for CoO promoted catalyst.
متن کاملsynergic promotion of catalyst by group viii b elements
group viii b metal oxides supported on gamma-alumina were investigated as catalysts and promoters of moo3 hydrodesulfurization catalysis. superior promotion was observed in pbo promoted catalyst compared to that of coo, the typically accepted promoter. other metal oxides, sno and ho2o3 exhibited reasonable hydrodesulfurization catalysis promotion but lower than for coo promoted catalyst.
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1899
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.18991481608