%0 Journal Article %1 WOS:000447570300017 %A Ghosh, Anupama %A da Silva Santos, Ariane Maria %A Cunha, Jose Renato %A Dasgupta, Archi %A Fujisawa, Kazunori %A Ferreira, Odair Pastor %A Lobo, Anderson Oliveira %A Terrones, Mauricio %A Terrones, Humberto %A Viana, Bartolomeu Cruz %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2018 %I ELSEVIER SCIENCE BV %J VIBRATIONAL SPECTROSCOPY %K Babassu CO2 Raman carbon; mesocarp; sensing} spectroscopy; {Activated %P 111-118 %R 10.1016/j.vibspec.2018.07.014 %T CO2 Sensing by in-situ Raman spectroscopy using activated carbon generated from mesocarp of babassu coconut %V 98 %X Herein an activated carbon (AC) with high surface area and microporosity was synthesized from the starch-rich mesocarp of the babassu coconut, an abundant biomass from north and northeastern Brazil. The synthesis of AC was realized by chemical activation using potassium hydroxide (KOH) coupled with pyrolysis at 750 degrees C and the produced material was further characterized by scanning (SEM) and transmission electron (TEM) microscopy, Fourier transform infrared (FTIR) and Raman spectroscopy, X-ray diffraction (XRD) and thermogravimetric analysis. SEM and TEM showed the formation of a thin-layer porous morphology of AC; whereas the nitrogen (N-2) and carbon dioxide (CO2) adsorption experiments identified a high surface area and microporosity. Raman spectra obtained by various laser lines revealed that AC has graphite-like microstructures with characteristic bands with features dependent on laser excitation energy. The amorphous nature from AC was further proven by XRD whereas FTIR showed the presence of surface-active oxygen functional groups. This AC material, produced from Brazillian Biomass showed a great potential as a CO2 sensor using a optical technique, In-situ Raman spectroscopy and their D and G vibrational modes shifting in the presence of CO2.

@article{WOS:000447570300017, abstract = {Herein an activated carbon (AC) with high surface area and microporosity was synthesized from the starch-rich mesocarp of the babassu coconut, an abundant biomass from north and northeastern Brazil. The synthesis of AC was realized by chemical activation using potassium hydroxide (KOH) coupled with pyrolysis at 750 degrees C and the produced material was further characterized by scanning (SEM) and transmission electron (TEM) microscopy, Fourier transform infrared (FTIR) and Raman spectroscopy, X-ray diffraction (XRD) and thermogravimetric analysis. SEM and TEM showed the formation of a thin-layer porous morphology of AC; whereas the nitrogen (N-2) and carbon dioxide (CO2) adsorption experiments identified a high surface area and microporosity. Raman spectra obtained by various laser lines revealed that AC has graphite-like microstructures with characteristic bands with features dependent on laser excitation energy. The amorphous nature from AC was further proven by XRD whereas FTIR showed the presence of surface-active oxygen functional groups. This AC material, produced from Brazillian Biomass showed a great potential as a CO2 sensor using a optical technique, In-situ Raman spectroscopy and their D and G vibrational modes shifting in the presence of CO2.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Ghosh, Anupama and da Silva Santos, Ariane Maria and Cunha, Jose Renato and Dasgupta, Archi and Fujisawa, Kazunori and Ferreira, Odair Pastor and Lobo, Anderson Oliveira and Terrones, Mauricio and Terrones, Humberto and Viana, Bartolomeu Cruz}, biburl = {https://www.bibsonomy.org/bibtex/25b701383c87b07c9ac336255b3828d46/ppgfis_ufc_br}, doi = {10.1016/j.vibspec.2018.07.014}, interhash = {d9f030c587c29cfad43cc771bb77d421}, intrahash = {5b701383c87b07c9ac336255b3828d46}, issn = {0924-2031}, journal = {VIBRATIONAL SPECTROSCOPY}, keywords = {Babassu CO2 Raman carbon; mesocarp; sensing} spectroscopy; {Activated}, pages = {111-118}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {CO2 Sensing by in-situ Raman spectroscopy using activated carbon generated from mesocarp of babassu coconut}, tppubtype = {article}, volume = 98, year = 2018 }