Disordered and amorphous carbons originating from natural and synthetic sources (soot, pyrolytic carbon, pitches) constitute a cheap carbon feedstock sufficiently flexible to be tailored into sundry graphenic nanocarbons by a bottom-up transformation process such as thermally induced annealing. Structural transformations toward nanocarbons of different properties relevant for practical usage (fibers, composites and opto-electronic devices) can be tuned by a suitable choice of both amorphous carbon nanostructure and annealing conditions (Wang et al., 2011). The barrier towards establishing reliable and efficient methods for obtaining engineering-tailored nanocarbons is the lack of knowledge on the amorphous carbon and amorphous carbon-derived nanostructural features and their relationship with physical-chemical properties. Therein the aim of the present paper is the application to naphthalene pitch (Mochida et al., 1995], an amorphous carbon, commercially available and recently characterized in deep detail (Gargiulo et al., 2015 and 2016), of thermally-induced annealing, achievable by furnace in mild conditions (low pressure and temperature <= 1000 °C) and by fast reactor (under N2 at 1800°C). The naphthalene pitch represents an interesting "case study" for set-up the annealing and characterization procedures that can be then extended to cheaper waste carbonaceous materials as soot, pyrolytic carbon, coal and petroleum pitches (Apicella et al., 2017a). Advanced analytical tools were applied for the analysis of structural improved carbonaceous materials obtained from naphthalene pitch transformations under annealing. Moreover, insights on the determination of general structure-property relations linking the structural and physical-chemical features of amorphous carbon-derived materials will be given in the paper. The obtained nanomaterials can be tested for use in electrodes preparation for energy storage.
Nano-Restructuration of Carbon Materials under High Temperature Heat Treatment for Environmental Application and Energy Storage
Barbara Apicella;Carmela Russo;Alessandra Di Blasi;Vincenzo Antonucci;Osvalda Senneca;Francesca Cerciello;Anna Ciajolo
2019
Abstract
Disordered and amorphous carbons originating from natural and synthetic sources (soot, pyrolytic carbon, pitches) constitute a cheap carbon feedstock sufficiently flexible to be tailored into sundry graphenic nanocarbons by a bottom-up transformation process such as thermally induced annealing. Structural transformations toward nanocarbons of different properties relevant for practical usage (fibers, composites and opto-electronic devices) can be tuned by a suitable choice of both amorphous carbon nanostructure and annealing conditions (Wang et al., 2011). The barrier towards establishing reliable and efficient methods for obtaining engineering-tailored nanocarbons is the lack of knowledge on the amorphous carbon and amorphous carbon-derived nanostructural features and their relationship with physical-chemical properties. Therein the aim of the present paper is the application to naphthalene pitch (Mochida et al., 1995], an amorphous carbon, commercially available and recently characterized in deep detail (Gargiulo et al., 2015 and 2016), of thermally-induced annealing, achievable by furnace in mild conditions (low pressure and temperature <= 1000 °C) and by fast reactor (under N2 at 1800°C). The naphthalene pitch represents an interesting "case study" for set-up the annealing and characterization procedures that can be then extended to cheaper waste carbonaceous materials as soot, pyrolytic carbon, coal and petroleum pitches (Apicella et al., 2017a). Advanced analytical tools were applied for the analysis of structural improved carbonaceous materials obtained from naphthalene pitch transformations under annealing. Moreover, insights on the determination of general structure-property relations linking the structural and physical-chemical features of amorphous carbon-derived materials will be given in the paper. The obtained nanomaterials can be tested for use in electrodes preparation for energy storage.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
