The H2-D2 exchange reaction catalyzed by gold nanoparticles supported on γ-Al2O3: Effect of particle size on the reaction rate

Autor:	K. N. Zhavoronkova, Alexandr A. Odintzov, O. A. Boeva, R. D. Solovov, Boris G. Ershov, E. V. Abkhalimov
Rok vydání:	2020
Předmět:	Empirical equations 010405 organic chemistry Chemistry Process Chemistry and Technology Hydrogen isotope Inorganic chemistry Nanoparticle General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Reaction rate Colloidal gold Particle size Gold surface
Zdroj:	Catalysis Communications. 133:105840
ISSN:	1566-7367
DOI:	10.1016/j.catcom.2019.105840
Popis:	Gold nanoparticles supported on γ-Al2O3 catalyzed the hydrogen isotope exchange Н2 + D2 at low temperatures, ca. 77 K. The specific catalytic activity increases by a factor of ~800 as the particle size decreases from 39.3 to 0.7 nm. A correlation has been established between the catalytic activity of nanoparticles of different size and the concentration of low-coordination gold surface atoms. Apparently, the obtained empirical equations can be used to estimate the specific catalytic activity of gold nanoparticles of various sizes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::945d5ebc5e3a2d7b7562229eac69c2f0 https://doi.org/10.1016/j.catcom.2019.105840 Zobrazit plný text záznamu Full Text from ScienceDirect