Pt nanoparticles supported on non-carbon titanium chromium nitride nanotubes with high activity and durability for methanol oxidation reaction
A hybrid titanium chromium nitride nanotube (Ti 0.95 Cr 0.05 N NT) support was prepared by a facile synthesis procedure and further used as support for Pt nanoparticles (Pt/Ti 0.95 Cr 0.05 N NTs). The catalyst was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and...
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Published in | Journal of solid state electrochemistry Vol. 23; no. 1; pp. 315 - 324 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.01.2019
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | A hybrid titanium chromium nitride nanotube (Ti
0.95
Cr
0.05
N NT) support was prepared by a facile synthesis procedure and further used as support for Pt nanoparticles (Pt/Ti
0.95
Cr
0.05
N NTs). The catalyst was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and nitrogen absorption/desorption, which show that the Pt/Ti
0.95
Cr
0.05
N NTs are formed with homogeneous cohesively attached nitride nanotube crystals. The X-ray photoelectron spectroscopy (XPS) reveals that the interaction between Ti
0.95
Cr
0.05
N NTs and Pt nanoparticles is enhanced due to the Cr element doping. Furthermore, the electrochemical experiments demonstrate that Ti
0.95
Cr
0.05
N NT-supported Pt catalyst exhibits enhanced catalytic activity and durability for methanol electrooxidation compared with traditional Pt/C catalyst. The experimental dates indicate that the excellent stability and durability of Pt/Ti
0.95
Cr
0.05
N NTs toward methanol electrochemical oxidation might be mainly ascribed to the synergistic effect introduced by Cr doping and the tubular nanostructures. The above results indicate that Ti
0.95
Cr
0.05
N NTs as support have a promising future in direct methanol fuel cells.
Graphical abstract
Robust non-carbon Ti
0.95
Cr
0.05
N nanotubes with tubular structure used as Pt support are synthesized by a facile method, and the Pt/Ti
0.95
Cr
0.05
N NT catalyst exhibits much higher activity and stability than conventional JM Pt/C and Pt/TiN NT catalysts for methanol electrooxidation. |
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ISSN: | 1432-8488 1433-0768 |
DOI: | 10.1007/s10008-018-4135-4 |