Article
Low pressure CO2 hydrogenation to methanol over gold nanoparticles activated on a CeOx/TiO2 Interface
Author/s | Yang, Xiaofang
Kattel, Shyam Senanayake, Sanjaya D. Boscoboinik, J. Anibal Nie, Xiaowa Graciani Alonso, Jesús Rodriguez, José A. Liu, Ping Stacchiola, Darío J. Chen, Jingguang G. |
Department | Universidad de Sevilla. Departamento de Química Física |
Publication Date | 2015 |
Deposit Date | 2022-05-18 |
Published in |
|
Abstract | Capture and recycling of CO2 into valuable chemicals such as alcohols could help mitigate its emissions into the atmosphere. Due to its inert nature, the activation of CO2 is a critical step in improving the overall reaction ... Capture and recycling of CO2 into valuable chemicals such as alcohols could help mitigate its emissions into the atmosphere. Due to its inert nature, the activation of CO2 is a critical step in improving the overall reaction kinetics during its chemical conversion. Although pure gold is an inert noble metal and cannot catalyze hydrogenation reactions, it can be activated when deposited as nanoparticles on the appropriate oxide support. In this combined experimental and theoretical study, it is shown that an electronic polarization at the metal-oxide interface of Au nanoparticles anchored and stabilized on a CeOx/TiO2 substrate generates active centers for CO2 adsorption and its low pressure hydrogenation, leading to a higher selectivity toward methanol. This study illustrates the importance of localized electronic properties and structure in catalysis for achieving higher alcohol selectivity from CO2 hydrogenation. |
Funding agencies | Department of Energy. United States Brookhaven National Laboratory. United States |
Project ID. | DE-AC02- 98CH10886
DE-AC02-05CH11231 DE-SC0012704 |
Citation | Yang, X., Kattel, S., Senanayake, S.D., Boscoboinik, J.A., Nie, X., Graciani Alonso, J.,...,Chen, J.G. (2015). Low pressure CO2 hydrogenation to methanol over gold nanoparticles activated on a CeOx/TiO2 Interface. Journal of the American Chemical Society, 137 (32), 10104-10107. |
Files | Size | Format | View | Description |
---|---|---|---|---|
Low pressure CO2 hydrogenation.pdf | 992.6Kb | [PDF] | View/ | |