Hydrogen production from the oxidative steam reforming of methanol over Au Cu nanoparticles supported on Ce1-xZrxO2 in a fixed-bed reactor
| Autor: | Chachchaya Thunyaratchatanon, Achiraya Kumyam, Chinchanop Pojanavaraphan, Apanee Luengnaruemitchai, Erdogan Gulari |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis Steam reforming chemistry.chemical_compound Fuel Technology chemistry Chemical engineering Yield (chemistry) Methanol 0210 nano-technology Bimetallic strip Hydrogen production Solid solution |
| Zdroj: | International Journal of Hydrogen Energy. 44:1686-1700 |
| ISSN: | 0360-3199 |
| Popis: | Oxidative steam reforming of methanol over monometallic gold (Au) and bimetallic Au-copper (Cu) supported on ceria-zirconia (CeO2 ZrO2) was examined over the temperature range of 200–400 °C in a fixed-bed reactor. The composition of CeO2 ZrO2 supports was also studied for their catalytic activity. The Au/Ce0.75Zr0.25O2 catalyst exhibited the highest methanol (CH3OH) conversion level (96.7%) and hydrogen (H2) yield (59.7%) due to the formation of a homogeneous Ce1-xZrxO2 solid solution. When Cu was introduced in the Au catalysts, all of the bimetallic catalysts presented a better stability for CH3OH conversion as well as H2 yield in comparison to the monometallic catalysts, which was due to the partial electron transfer from Cu to Au metals. The performance of the Au Cu/Ce0.75Zr0.25O2 catalysts, which was evaluated under identical conditions, was ranked in the order: 3Au1Cu > 1Au3Cu > 1Au1Cu. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect