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001 598955
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035 _a(RuTPU)RU\TPU\tpu\22763
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090 _a598955
100 _a20130226a2011 k y0engy50 ba
101 0 _aeng
102 _aUS
200 1 _aGold nanoparticles supported on magnesium oxide for CO oxidation
_fS. A. C. Carabineiro [et al.]
300 _aProceedings 11th International Conference (TNT2010) Trends in NanoTechnology
320 _aReferences: 46 tit.
330 _aAu was loaded (1 wt%) on a commercial MgO support by three different methods: double impregnation, liquid-phase reductive deposition and ultrasonication. Samples were characterised by adsorption of N2 at -96°C, temperature-programmed reduction, high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction. Upon loading with Au, MgO changed into Mg(OH)2 (the hydroxide was most likely formed by reaction with water, in which the gold precursor was dissolved). The size range for gold nanoparticles was 2-12 nm for the DIM method and 3-15 nm for LPRD and US. The average size of gold particles was 5.4 nm for DIM and larger than 6.5 for the other methods. CO oxidation was used as a test reaction to compare the catalytic activity. The best results were obtained with the DIM method, followed by LPRD and US. This can be explained in terms of the nanoparticle size, well known to determine the catalytic activity of gold catalysts.
333 _aВ фонде НТБ ТПУ отсутствует
461 _tNanoscale Research Letters
_d2006-
463 _tVol. 6, Art. 435
_v6 p.
_d2011
610 1 _aтруды учёных ТПУ
701 1 _aCarabineiro
_bS. A. C.
701 1 _aBogdanchikova
_bN.
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 _aTavares
_bP. B.
701 1 _aFernandes
_bL. S. G.
701 1 _aFigueiredo
_bJ. L.
801 1 _aRU
_b63413507
_c20130226
801 2 _aRU
_b63413507
_c20130226
_gRCR
942 _cBK