Selective Oxidation of Glucose Over Carbon-supported Pd and Pt Catalysts
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Catalysis Letters
ISSN: 1011-372X
, E-ISSN: 1572-879X
|
| Вых. Данные |
Год: 2010,
Том: 140,
Номер: 1,
Страницы: 14-21
Страниц
: 8
DOI:
10.1007/s10562-010-0430-0
|
| Ключевые слова |
Gluconic acid, Glucose, Particle size effect, Pd, Pt, Selective oxidation |
| Авторы |
Delidovich Irina V.
1
,
Taran Oxana P.
1,2
,
Matvienko Lyudmila G.
1,2
,
Simonov Alexander N.
1,2
,
Simakova Irina L.
1
,
Bobrovskaya Alesya N.
1
,
Parmon Valentin N.
1,2
|
| Организации |
| 1 |
Институт катализа им. Г.К. Борескова СО РАН
|
| 2 |
Новосибирский национальный исследовательский государственный университет
|
|
Информация о финансировании (3)
|
1
|
Министерство образования и науки Российской Федерации
|
02.740.11.5178
|
|
2
|
Российский фонд фундаментальных исследований
|
08-03-00823
|
|
3
|
Министерство образования и науки Российской Федерации
|
02.740.11.0265
|
Selective oxidation of glucose into gluconic acid by molecular oxygen over carbon-supported Pt and Pd catalysts was studied. Under examination were kinetic regularities of the process in respect of the electronic state of the noble metal surface, dispersion of the active component particles as well as substrate:Pt(Pd) ratio. Catalytic activity of the Pt/C catalysts being normalized to the dispersion of the platinum particles appeared independent of the particles mean diameter in the 1–5 nm range. A negative particle size effect for the Pd/C catalysts, caused by feasibility of oxidation of the surface of noble metal particles with the size less than 3 nm, was observed. Pt/C catalysts exhibited lower specific activity and provided poor selectivity of the glucose oxidation in comparison with Pd/C. Deactivation of Pd/C catalysts arising from the formation of surface Pd(II) oxides was retarded when the reaction was carried out under an oxygen-diffusion control.