| Title |
Green Thermo-Photo Catalytic Production of Syngas Using Pd/Nb-TiO2 Catalysts |
| ID_Doc |
29745 |
| Authors |
Caudillo-Flores, U; Sayago, R; Ares-Dorado, A; Fuentes-Moyado, S; Fernández-García, M; Kubacka, A |
| Title |
Green Thermo-Photo Catalytic Production of Syngas Using Pd/Nb-TiO2 Catalysts |
| Year |
2023 |
| Published |
|
| DOI |
10.1021/acssuschemeng.2c07285 |
| Abstract |
In this contribution, a series of Pd-promoted Nb-doped titania samples were essayed in the gas-phase thermo-photo production of syngas from methanol/water mixtures. The Pd loading was tested in the 0.1 to 2.5 wt % range, leading to the presence of metallic nanoparticles under reaction. Reaction rates exceeding 52 mmol H2 g-1 h-1 and quantum efficiencies above 33% were obtained. The optimum sample having a 0.5 wt % of Pd provided an outstanding synergy between light and heat under reaction conditions, facilitating the boost of activity with respect to the single-source processes and achieving high selectivity to syngas. The spectroscopic analysis of the physico-chemical ground of the activity unveiled that the noble metal interaction with the Nb-doped anatase support triggers a cooperative effect, promoting the evolution of formic acid-type methanol-derived carbon-containing species and rendering a significant enhancement of syngas production. The proposed thermo-photo system is thus a firm candidate to contribute to the new green circular economy. |
| Author Keywords |
hydrogen; syngas; thermal and photon dual excitation; methanol; mechanism; in situ spectroscopy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000935964100001 |
| WoS Category |
Chemistry, Multidisciplinary; Green & Sustainable Science & Technology; Engineering, Chemical |
| Research Area |
Chemistry; Science & Technology - Other Topics; Engineering |
| PDF |
https://doi.org/10.1021/acssuschemeng.2c07285
|