Hydrogen Adsorption Properties of Carbon Nanotubes and Platinum Nanoparticles from a New Ammonium-Ethylimidazolium Chloroplatinate Salt.
Self-supporting membranes built entirely of carbon nanotubes have been prepared by wet methods and characterized by Raman spectroscopy. The membranes are used as supports for the electrodeposition of Pt nanoparticles without the use of additional additives and/or stabilizers. The Pt precursor is an ad hoc synthesized ammonium-ethylimidazolium chloroplatinate(IV) salt, [NH3 (CH2 )2 MIM)][PtCl6 ]. The Pt complex was characterized using NMR spectroscopy, XRD, ESI-MS, and FTIR spectroscopy. The interaction between the Pt-carbon nanotubes nanocomposites and hydrogen is analyzed using electrochemical and quartz microbalance measurements under near-ambient conditions. The contribution of the Pt phase to the hydrogen adsorption on nanotube is found and explained by a kinetic model that takes into account a spillover event. Such a phenomenon may be exploited conveniently for catalysis and electrocatalysis applications in which the hybrid systems could act as a hydrogen transfer agent in specific hydrogenation reactions.
Dip.to di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy. Emanuela.Tamburri@uniroma2.it.|NanoShare srl, Via G. Peroni 386, 00131, Rome, Italy. Emanuela.Tamburri@uniroma2.it.
Emanuela
0000-0003-2643-8249
E
Tamburri
Dip.to di Chimica Industriale "Toso Montanari", INSTM UdR Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy.
Maria Cristina
0000-0002-7155-8744
MC
Cassani
Dip.to di Chimica Industriale "Toso Montanari", INSTM UdR Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy.
Barbara
0000-0003-3698-2352
B
Ballarin
Dip.to di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy.
Massimo
0000-0002-2625-7096
M
Tomellini
Dip.to di Chimica Industriale "Toso Montanari", INSTM UdR Bologna, Viale del Risorgimento 4, 40136, Bologna, Italy.
Cristina
0000-0003-4317-6543
C
Femoni
Centro Interdipartimentale di Ricerca Industriale su Meccanica Avanzata e Materiali (CIRI-MAM), Università di Bologna, Viale del Risorgimento 2, 40136, Bologna, Italy.
Adriana
0000-0002-3149-3931
A
Mignani
Dip.to di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy.|NanoShare srl, Via G. Peroni 386, 00131, Rome, Italy.
Maria Letizia
0000-0001-7679-7288
ML
Terranova
Dip.to di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy.
Silvia
0000-0002-3261-933X
S
Orlanducci
D000327:Adsorption; D002384:Catalysis; D004563:Electrochemistry; D006859:Hydrogen / Q000737:chemistry*; D007700:Kinetics; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D053761:Nanocomposites / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009944:Organoplatinum Compounds / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*
D008567:Membranes, Artificial; D037742:Nanotubes, Carbon; D009944:Organoplatinum Compounds; D010984:Platinum; D006859:Hydrogen
Pt(IV)-imidazolium salt; adsorption kinetics; electrodeposition; hybrid nanomaterials; spillover