naa a22 4500 510803466 CHVBK 20180411083406.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11664-012-2367-0 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2367-0 The Role of the Nickel Catalyst and Its Chemical and Structural Evolution During Carbon Nanopearl Growth [Elektronische Daten] [S. Pacley, W. Mitchel, P. Murray, D. Anderson, H. Smith, E. Beck-Millerton, A. Voevodin] The role of the nickel catalyst size and its chemical and structural evolution during the early stages of carbon nanopearl nucleation and growth, by chemical vapor deposition from acetylene/argon mixture, were investigated and correlated with the resulting nanopearls' morphological and structural properties. Carbon nanopearls were grown using Ni nanoparticles that were 20nm and 100nm in size, at a growth temperature of 850°C, for the following growth times: 10s, 30s, 60s, 90s, 120s, and 300s. x-Ray diffraction, x-ray photoelectron spectroscopy, Raman spectroscopy, and transmission electron microscopy were performed on the carbon nanopearl samples. The x-ray diffraction and x-ray photoelectron spectra showed that the following chemical constituents were present during the growth of carbon nanopearls: NiO, Ni2O3, Ni3C, Ni, CO, and C (both amorphous and graphite). Transmission electron microscopy showed an increase in carbon nanopearl size with larger Ni nanoparticles. Raman results concluded that the smaller catalyst resulted in a more crystalline graphitic structure. Finally, the results showed that the 20nm Ni nanoparticles chemically reacted sooner than the 100nm Ni nanoparticles. TMS (outside the USA), 2012 Carbon nanopearls nationallicence nickel nationallicence catalyst nationallicence chemical vapor deposition nationallicence Pacley S. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut Mitchel W. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut Murray P. University of Dayton Research Institute, Dayton, OH, USA aut Anderson D. University of Dayton Research Institute, Dayton, OH, USA aut Smith H. University of Dayton Research Institute, Dayton, OH, USA aut Beck-Millerton E. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut Voevodin A. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 417-425 0361-5235 42:3<417 2013 42 11664 https://doi.org/10.1007/s11664-012-2367-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2367-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pacley S. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut NATIONALLICENCE 700 1- Mitchel W. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut NATIONALLICENCE 700 1- Murray P. University of Dayton Research Institute, Dayton, OH, USA aut NATIONALLICENCE 700 1- Anderson D. University of Dayton Research Institute, Dayton, OH, USA aut NATIONALLICENCE 700 1- Smith H. University of Dayton Research Institute, Dayton, OH, USA aut NATIONALLICENCE 700 1- Beck-Millerton E. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut NATIONALLICENCE 700 1- Voevodin A. U.S. Air Force Research Laboratory (AFRL)/Wright Patterson Air Force Base, 45433-7707, Wright Patterson, OH, USA aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/3(2013-03-01), 417-425 0361-5235 42:3<417 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer