Academic Journal
Enhancing activity, selectivity and stability of palladium catalysts in formic acid decomposition: Effect of support functionalization
| العنوان: | Enhancing activity, selectivity and stability of palladium catalysts in formic acid decomposition: Effect of support functionalization |
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| المؤلفون: | Barlocco I., Bellomi S., Delgado J. J., Chen X., Prati L., Dimitratos N., Roldan A., Villa A. |
| المساهمون: | I. Barlocco, S. Bellomi, J.J. Delgado, X. Chen, L. Prati, N. Dimitrato, A. Roldan, A. Villa |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2021 |
| المجموعة: | The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
| مصطلحات موضوعية: | Carbon nanofiber, Formic acid, Functionalization, Hydrogen, Palladium, Settore CHIM/03 - Chimica Generale e Inorganica, Settore CHIM/04 - Chimica Industriale, Settore CHIM/02 - Chimica Fisica |
| الوصف: | In this work, palladium nanoparticles were deposited on oxygen and phosphorous functionalised carbon nanofibers (CNFs) by sol immobilisation method in order to investigate the support-metal effect on the formic acid (FA) decomposition reaction. In order to establish the presence of functional groups in the support and their effect on Pd nanoparticles, the obtained samples were then, characterised by Transmission Electron Microscopy (HR-TEM, STEM-HAADF and STEM-EDS) and X-ray photoelectron spectroscopy (XPS). FA catalytic decomposition performance, the stability and selectivity of the catalysts were evaluated in liquid-phase at mild reaction conditions. The effect of the metal-support interaction in the reactivity and stability of the catalysts was demonstrated leading to superior catalytic properties in both the functionalised materials. Density functional theory (DFT) simulations provided further insights in the interaction of Pd15 cluster with different support surfaces, i.e. pristine graphene (PG), carboxyl doped graphene (G_COOH), hydroxyl doped graphene (G_OH), carbonyl doped graphene (G_CO) and phosphate doped graphene (G_PO3H). The cluster-support interaction strength follows the trend Pd/G_CO > Pd/G_COOH > Pd/G_OH > Pd/G_PO3H > Pd/PG, confirming the increased stability of 1 wt% Pd@O-HHT and 1 wt% Pd@P-HHT observed in the experimental results. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000707647000008; volume:382; firstpage:61; lastpage:70; numberofpages:10; journal:CATALYSIS TODAY; http://hdl.handle.net/2434/901350; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85110520930 |
| DOI: | 10.1016/j.cattod.2021.07.005 |
| الاتاحة: | http://hdl.handle.net/2434/901350 https://doi.org/10.1016/j.cattod.2021.07.005 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.F530D9CD |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.cattod.2021.07.005 |
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