TY - JOUR
T1 - HRTEM low dose
T2 - the unfold of the morphed graphene, from amorphous carbon to morphed graphenes
AU - Calderon, H. A.
AU - Okonkwo, A.
AU - Estrada-Guel, I.
AU - Hadjiev, V. G.
AU - Alvarez-Ramírez, F.
AU - Robles Hernández, F. C.
N1 - Publisher Copyright:
© 2016, The Author(s).
PY - 2016/1/1
Y1 - 2016/1/1
N2 - We present experimental evidence under low-dose conditions transmission electron microscopy for the unfolding of the evolving changes in carbon soot during mechanical milling. The milled soot shows evolving changes as a function of the milling severity or time. Those changes are responsible for the transformation from amorphous carbon to graphenes, graphitic carbon, and highly ordered structures such as morphed graphenes, namely Rh6 and Rh6-II. The morphed graphenes are corrugated layers of carbon with cross-linked covalently nature and sp2- or sp3-type allotropes. Electron microscopy and numerical simulations are excellent complementary tools to identify those phases. Furthermore, the TEAM 05 microscope is an outstanding tool to resolve the microstructure and prevent any damage to the sample. Other characterization techniques such as XRD, Raman, and XPS fade to convey a true identification of those phases because the samples are usually blends or mixes of the mentioned phases.
AB - We present experimental evidence under low-dose conditions transmission electron microscopy for the unfolding of the evolving changes in carbon soot during mechanical milling. The milled soot shows evolving changes as a function of the milling severity or time. Those changes are responsible for the transformation from amorphous carbon to graphenes, graphitic carbon, and highly ordered structures such as morphed graphenes, namely Rh6 and Rh6-II. The morphed graphenes are corrugated layers of carbon with cross-linked covalently nature and sp2- or sp3-type allotropes. Electron microscopy and numerical simulations are excellent complementary tools to identify those phases. Furthermore, the TEAM 05 microscope is an outstanding tool to resolve the microstructure and prevent any damage to the sample. Other characterization techniques such as XRD, Raman, and XPS fade to convey a true identification of those phases because the samples are usually blends or mixes of the mentioned phases.
KW - Carbon Nanostructures
KW - Fast Fourier Transformation
KW - Graphitic Carbon
KW - Milling Time
KW - Zone Axis
UR - http://www.scopus.com/inward/record.url?scp=85062157333&partnerID=8YFLogxK
U2 - 10.1186/s40679-016-0024-z
DO - 10.1186/s40679-016-0024-z
M3 - Artículo
SN - 2198-0926
VL - 2
JO - Advanced Structural and Chemical Imaging
JF - Advanced Structural and Chemical Imaging
IS - 1
M1 - 10
ER -