Support Effect for Nanosized Au Catalysts in Hydrogen Production from Formic Acid Decomposition
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Catalysis Science and Technology
ISSN: 2044-4753
, E-ISSN: 2044-4761
|
| Output data |
Year: 2016,
Volume: 6,
Number: 18,
Pages: 6853-6860
Pages count
: 8
DOI:
10.1039/C6CY00552G
|
| Authors |
Zacharska Monika
1,2
,
Chuvilin Andrey L.
3,4
,
Kriventsov Vladimir V.
5
,
Beloshapkin Sergey
2
,
Estrada Miguel
6
,
Simakov Andrey
6
,
Bulushev Dmitri A.
5,7,8
|
| Affiliations |
| 1 |
Chemical & Environmental Sciences Department, University of Limerick, Limerick, Ireland
|
| 2 |
Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
|
| 3 |
CIC nanoGUNE Consolider, Donostia - San Sebastián, 20018 Spain
|
| 4 |
IKERBASQUE, Basque Foundation for Science, Bilbao, 20013 Spain
|
| 5 |
Boreskov Institute of Catalysis, SB RAS, Novosibirsk 630090, Russia
|
| 6 |
Centro de Nanociencias y Nanotecnología de la UNAM, Ensenada, México
|
| 7 |
Novosibirsk State University, Novosibirsk 630090, Russia
|
| 8 |
Nikolaev Institute of Inorganic Chemistry, SB RAS, Novosibirsk 630090, Russia
|
|
Funding (8)
|
1
|
Russian Science Foundation
|
16-13-00016
|
|
2
|
European Commission
|
295180 FP7-PEOPLE-2011-IRSES
|
|
3
|
European Commission
|
|
|
4
|
FEI Company
|
|
|
5
|
National Autonomous University of Mexico
National Council of Science and Technology
|
179619
|
|
6
|
National Autonomous University of Mexico
|
203813
|
|
7
|
Russian Foundation for Basic Research
|
16-03-01139
|
|
8
|
Russian Foundation for Basic Research
|
14-03-01066
|
Catalysts with about 2.5 wt% of gold supported on Al2O3, ZrO2, CeO2, La2O3 and MgO oxides and with the same mean metal particle sizes of 2.4–3.0 nm have been studied in hydrogen production via formic acid decomposition. A strong volcano-type relation of the catalytic activity on the electronegativity of the support's cation was demonstrated with the Au/Al2O3 catalyst on the top. This indicated that the activity is affected by the acid–base properties of the support. A study of the most active Au/Al2O3 catalyst with aberration-corrected HAADF/STEM, XPS and EXAFS proved that gold is in metallic state. The content of single supported gold atoms/cations was negligible. Therefore, the mechanism of the reaction was related to the activation of formic acid on the catalyst's support followed by further decomposition of the formed reaction intermediate on the Au/support interface.