In situ Synthesis and Catalytic Activity in CO Oxidation of Metal Nanoparticles Supported on Porous Nanocrystalline Silicon

In situ Synthesis and Catalytic Activity in CO Oxidation of Metal Nanoparticles Supported on Porous Nanocrystalline Silicon Научная публикация

Журнал

Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694

Вых. Данные

Год: 2010, Том: 271, Номер: 1, Страницы: 59-66 Страниц : 8 DOI: 10.1016/j.jcat.2010.02.002

Авторы

Polisski Sergej ¹ , Goller Bernhard ¹ , Wilson Karen ² , Kovalev Dmitry ¹ , Zaikowskii Vladimir ³ , Lapkin Alexei ⁴

Организации

1	Department of Physics, University of Bath
2	Cardiff Catalysis Institute, School of Chemistry, Cardiff University
3	Boreskov Institute of Catalysis
4	School of Engineering, University of Warwick

Reactive surface of mesoporous nanocrystalline silicon was used to synthesise noble metal nanoparticles via in situ reduction of the precursor salt solutions. The synthetic methodology for metal nanoparticle formation was systematically developed, and reaction conditions of metal salts reduction were optimised to prepare nanoparticles of controlled size distribution in the order 5–10 nm inside the mesoporous silicon template. CO oxidation was used as a test reaction for the synthesised Pt/porous silicon catalysts. Sharp reaction light-off was observed at about 120 °C on the optimised catalysts. The catalysts were shown to be stable in the extended steady-state runs and in the catalysts re-use experiments. Metal nanoparticles were shown to be stable to sintering at elevated temperatures up to 1000 °C. However, after thermal treatment on air, Pt nanoparticles were covered by a SiOx layer and were less active in CO oxidation.

Polisski S. , Goller B. , Wilson K. , Kovalev D. , Zaikowskii V. , Lapkin A.
In situ Synthesis and Catalytic Activity in CO Oxidation of Metal Nanoparticles Supported on Porous Nanocrystalline Silicon
Journal of Catalysis. 2010. V.271. N1. P.59-66. DOI: 10.1016/j.jcat.2010.02.002 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Поступила в редакцию:	4 нояб. 2009 г.
Принята к публикации:	1 февр. 2010 г.
Опубликована online:	5 мар. 2010 г.
Опубликована в печати:	12 апр. 2010 г.

Web of science:	WOS:000277217500007
Scopus:	2-s2.0-77950219493
РИНЦ:	15317323
Chemical Abstracts:	2010:375873
Chemical Abstracts (print):	152:553421
OpenAlex:	W2130574395
Sciact:	3396

БД	Цитирований
Scopus	23
OpenAlex	28