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001 663826
005 20231030041909.0
035 _a(RuTPU)RU\TPU\network\34996
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090 _a663826
100 _a20210311a2020 k y0engy50 ba
101 0 _aeng
102 _aCH
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aGlycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support
_fE. G. Pakrieva, E. N. Kolobova, D. Yu. German [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 47 tit.]
330 _aGold nanoparticles supported on various oxides (CeO2, CeO2/TiO2, MgO, MgO/TiO2, La2O3, La2O3/TiO2) (with 4 wt.% Au loading) were investigated in the liquid (aqueous) phase oxidation of glycerol by molecular oxygen under mild conditions, in the presence of alkaline earth (CaO, SrO and MgO) or alkaline (NaOH) bases. Full conversion and selectivity between 38 and 68% to sodium glycerate were observed on different Au supported catalysts (Au/MgO/TiO2, Au/La2O3/TiO2, Au/CeO2 and Au/CeO2/TiO2). The combined effect of Au particle size and basicity of the support was suggested as the determining factor of the activity. Agglomeration of gold nanoparticles, found after the reaction, led to the deactivation of the catalysts, which prevents the further oxidation of sodium glycerate into sodium tartronate. Promising results were obtained with the use of alkaline earth bases (CaO, SrO, MgO), leading to the formation of free carboxylic acids instead of salts, which are formed in the presence of the more usual base, NaOH.
338 _bРоссийский фонд фундаментальных исследований
_d18-29-24037
461 _tProcesses
463 _tVol. 8, iss. 9
_v[1016, 17 p.]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _agold catalysts
610 1 _aglycerol oxidation
610 1 _acatalyst selectivity
610 1 _aglyceric acid
610 1 _atartronicacid
610 1 _abase additives
610 1 _aкатализаторы
610 1 _aокисление
610 1 _aглицерин
610 1 _aселективность
610 1 _aкислоты
610 1 _aдобавки
610 1 _aзолото
701 1 _aPakrieva
_bE. G.
_cChemical Engineer
_cEngineer of Tomsk Polytechnic University
_f1989-
_gEkaterina Germanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33273
701 1 _aKolobova
_bE. N.
_cChemical Engineer
_cdesign engineer of Tomsk Polytechnic University
_f1989-
_gEkaterina Nikolaevna
_2stltpush
_3(RuTPU)RU\TPU\pers\34488
701 1 _aGerman
_bD. Yu.
_cChemical engineer
_cEngineer of Tomsk Polytechnic University
_f1993-
_gDmitry Yuryevich
_2stltpush
_3(RuTPU)RU\TPU\pers\42480
701 1 _aStucchi
_bM.
_gMarta
701 1 _aVilla
_bA.
_gAlberto
701 1 _aPrati
_bL.
_gLaura
701 1 _aCarabineiro
_bS. A. C.
_gSonia Alexandra Correia
701 1 _aBogdanchikova
_bN.
_gNina
701 1 _aCorberan
_bV. C.
_gCortes
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
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
801 2 _aRU
_b63413507
_c20210311
_gRCR
856 4 _uhttps://doi.org/10.3390/pr8020217
942 _cCF