000 01978nam1a2200289 4500
001 599620
005 20231030033833.0
035 _a(RuTPU)RU\TPU\tpu\23724
035 _aRU\TPU\tpu\22912
090 _a599620
100 _a20130930a1988 k y0engy50 ba
101 1 _aeng
102 _aRU
200 1 _aStudy of catalyst activity in the extensive oxidation of butane and the state of platinum in lanthanum- and cerium-modified Pt/Al/sub 2/O/sub 3/ catalysts
_fV. A. Drozdov [et al.]
330 _aAn effect was demonstrated for the addition of lanthanum and cerium oxides to Pt/Al/sub 2/O/sub 3/ catalysts on the catalyst activity in the extensive oxidation of butane. Independently of the rate of the butane and oxygen concentrations in the gas phase, the specific catalyst activity (SCA) per m/sup 2/ Pt of the modified samples is less than that of the Pt/Al/sub 2/O/sub 3/ catalyst. The addition of lanthanum and cerium significantly increases the dispersion and stability of the supported platinum upon overheating. The IR spectra of the CO molecular probe were used to establish the electronic states of the surface platinum atoms in the samples studied after various treatments. In the presence of cerium oxide, platinum was found to undergo reduction with greater difficulty and have a greater tendency to undergo oxidation than platinum in the unmodified catalyst.
333 _aВ фонде НТБ ТПУ отсутствует
461 _tKinetics and catalysis
_d1960-
463 _tVol. 2, № 2 pt. 2
_vP. 420-423
_d1988
610 1 _aтруды учёных ТПУ
701 1 _aDrozdov
_bV. A.
701 1 _aTsyrul'nikov
_bP. G.
701 1 _aPestryakov
_bA. N.
_cChemist
_cProfessor of Tomsk Polytechnic University, Doctor of Chemical Science
_f1963-
_gAleksey Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30471
_4070
701 1 _aDavydov
_bA. A.
701 1 _aPopvskii
_bV. V.
801 1 _aRU
_b63413507
_c20130226
801 2 _aRU
_b63413507
_c20130930
_gRCR
942 _cBK