INVESTIGADORES
MORENO Mario Sergio Jesus
artículos
Título:
Effect of acid oxidation treatment on adsorption properties of ARC-discharge synthesized multiwall carbon nanotubes
Autor/es:
VICENTE, J.L.; ALBESA, A.; LLANOS, J.L.; FLORES, E.S.; FERTITTA, A.E. ; SORIA, D.B.; MORENO, M.S.; RAFTI, M.
Revista:
Journal of the Argentine Chemical Society
Editorial:
ASOCIACIÓN QUÍMICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2018 vol. 98 p. 29 - 38
ISSN:
0365-0375
Resumen:
The effect of nitric/sulfuric acid oxidation treatment on commercial arc-discharge multiwall carbon nanotubes was studied. Purification and structure modifications were assessed via Transmission Electron Microscopy and Thermogravimetric Analysis; while changes in adsorption properties were monitored by nitrogen and methane adsorption isotherms. After treatment, nitrogen isotherms present hysteresis loop and an increased BET surface area; while adsorption energies obtained fromisosteric heat profiles revealed a marked decrease. We propose an explanation for these findings and use macroscopic experimental data to gain insight on acid oxidation effect on the material.
