TY - JOUR
T1 - Influence of operating conditions on proton conductivity of nanocellulose films using two agroindustrial wastes
T2 - Sugarcane bagasse and pinewood sawdust
AU - Macías-Almazán, A.
AU - Lois-Correa, J. A.
AU - Domínguez-Crespo, M. A.
AU - López-Oyama, A. B.
AU - Torres-Huerta, A. M.
AU - Brachetti-Sibaja, S. B.
AU - Rodríguez-Salazar, A. E.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/6/15
Y1 - 2020/6/15
N2 - Cellulose nanocrystals (CNCs) were isolated from two-agroindustrial wastes: sugarcane bagasse (SCB) and pinewood sawdust (PWS), to analyze their chemical, structural, morphological, and proton conduction properties in dependence of the synthesis parameters. In both sources, the isolated CNCs correspond to the monoclinic phase of cellulose type I and II. For SCB, the smallest CNCs were isolated, in a range of 3–10 nm, with 5 wt.% of NaOH and 60 °C of acid hydrolysis. PWS displayed the smallest sizes at 75 °C and 10 wt.% NaOH (40–110 nm). Membrane characterization suggests that isolated CNCs, between 75 and 90 °C of acid hydrolysis and 10 wt.% NaOH from both SCB and PWS sources, displayed an important increase in the proton conductivity, 1.23(±0.61)×10−5 and 9.26 (±0.24)×10-5 S-m-1, respectively. Thus, with proper synthesis conditions, CNCs can be potentially used as based element to obtain other proton conductor materials to fabricate PEMs.
AB - Cellulose nanocrystals (CNCs) were isolated from two-agroindustrial wastes: sugarcane bagasse (SCB) and pinewood sawdust (PWS), to analyze their chemical, structural, morphological, and proton conduction properties in dependence of the synthesis parameters. In both sources, the isolated CNCs correspond to the monoclinic phase of cellulose type I and II. For SCB, the smallest CNCs were isolated, in a range of 3–10 nm, with 5 wt.% of NaOH and 60 °C of acid hydrolysis. PWS displayed the smallest sizes at 75 °C and 10 wt.% NaOH (40–110 nm). Membrane characterization suggests that isolated CNCs, between 75 and 90 °C of acid hydrolysis and 10 wt.% NaOH from both SCB and PWS sources, displayed an important increase in the proton conductivity, 1.23(±0.61)×10−5 and 9.26 (±0.24)×10-5 S-m-1, respectively. Thus, with proper synthesis conditions, CNCs can be potentially used as based element to obtain other proton conductor materials to fabricate PEMs.
KW - Cellulose nanocrystals
KW - Pinewood sawdust
KW - Proton exchange membranes
KW - Sugarcane bagasse
UR - http://www.scopus.com/inward/record.url?scp=85082829636&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2020.116171
DO - 10.1016/j.carbpol.2020.116171
M3 - Artículo
C2 - 32299564
SN - 0144-8617
VL - 238
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 116171
ER -