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Resistance changes of carbon nanotubes decorated with platinum nanoparticles in the presence of hydrogen at different and constant concentrations
Author(s) -
DobrzańskaDanikiewicz Anna D.,
Łukowiec Dariusz,
Pawlyta Mirosława,
Gaweł Tomasz,
Procek Marcin
Publication year - 2014
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201451179
Subject(s) - platinum , materials science , carbon nanotube , platinum nanoparticles , nanocomposite , nanoparticle , scanning electron microscope , nanomaterials , nanotechnology , transmission electron microscopy , chemical engineering , amorphous carbon , chemical vapor deposition , hydrogen , composite material , amorphous solid , catalysis , chemistry , organic chemistry , engineering
This work presents the outcome of research into the structure and resistance changes of composites containing carbon nanotubes (CNT) coated with platinum nanoparticles. High‐quality CNTs obtained in the chemical vapor deposition process (100–200 μm long, 10–20 nm in diameter) were employed in the research. Raw CNTs did not contain metallic impurities or amorphous carbon deposits. An indirect method of bonding the earlier produced platinum nanoparticles to the surface of functionalized CNTs was applied to deposit platinum nanoparticles onto the surface of CNTs. A surface of CNTs with uniformly distributed platinum nanoparticles was achieved as a result of the experiments undertaken. Investigations into the structure and morphology of the materials obtained were carried out with transmission electron microscopy and scanning transmission electron microscopy methods, and the X‐ray structure analysis was used to identify the phase composition of the fabricated nanocomposites. The studies of changes in resistance were carried out with a constant and variable concentration of H 2 in the atmosphere of synthetic air. The goal of the research was the multifaceted characterization of the nanomaterials produced and to identify the response of the CNTs–platinum system to hydrogen in the atmosphere of synthetic air.