Bimetallic gold-copper nanoparticles in the catalytic reaction of deuterium-hydrogen exchange: A synergistic effect

Autor:	O. A. Boeva, Alexey Antonov, Ekaterina Kudinova, K. N. Zhavoronkova, Ivan Vorakso
Rok vydání:	2022
Předmět:	Hydrogen exchange Hydrogen Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Nanoparticle Condensed Matter Physics Copper Catalysis Fuel Technology Deuterium chemistry Colloidal gold Bimetallic strip
Zdroj:	International Journal of Hydrogen Energy. 47:4759-4765
ISSN:	0360-3199
DOI:	10.1016/j.ijhydene.2021.11.078
Popis:	Catalyst systems containing bimetallic Au and Cu nanoparticles exhibited higher specific catalytic activity (H2/D2 exchange reaction) than monometallic gold nanoparticles and catalytically inactive copper monoparticles. A synergistic effect was found in the reaction of homomolecular isotope exchange of hydrogen. The activity was observed to depend on the ratio of metals in the nanoparticle. The maximum activity was exhibited by particles for the preparation of which solutions of salts taken in the ratio Au:Cu = 50%:50% were used as precursors. The addition of gold to copper led not only to the appearance of the activity of the Aun-Cum heteroparticles, but also to the stabilization of the surface and catalytic activity, which allowed us to conclude about the promoting effect of gold. The combination of several metals in a catalytic system provides a unique opportunity to create new highly active catalysts in processes involving hydrogen.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6f789454a312e4feb01b116dace4be3 https://doi.org/10.1016/j.ijhydene.2021.11.078 Zobrazit plný text záznamu Full Text from ScienceDirect