壳聚糖/ n -邻苯二甲酰DMFC复合膜的制备与表征

Christine Dyta Nugraeni, L. Atmaja, Nur Hayati, M. Purwanto, M. Santoso, Yuli Kusumawati
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引用次数: 0

摘要

改性壳聚糖膜是一种很有前途的聚合物电解质膜。制备了壳聚糖/ n -邻苯甲酰壳聚糖复合膜,获得了高质子导电性和低甲醇渗透率。采用铸造法和溶剂蒸发法制备膜。表面形貌、力学分析、甲醇渗透率和质子电导率被用来表征其整体性能。红外光谱显示壳聚糖与n-邻苯甲酰/壳聚糖存在相互作用。SEM分析表明,复合膜的表面粗糙度随着n-邻苯二甲酰负载的增加而增加。合成膜的最高质子电导率为2.4 mS.cm-1,高于原始壳聚糖膜的1.6 mS.cm-1。此外,n-邻苯甲酰/壳聚糖的加入也提高了甲醇的渗透性。复合膜中质子电导率与甲醇渗透性的相关性表明,该共混物在DMFC中具有应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fabrication and Characterization of Chitosan/N-Phthaloyl Composite Membrane for DMFC Application
Modified chitosan membrane is one of the promising membranes for polymer electrolyte membrane. Chitosan/N-phthaloyl chitosan composite membranes were fabricated to obtain high proton conductivity and low methanol permeability. Membranes were fabricated by casting method and solvent evaporation. Surface morphology, mechanical analysis, methanol permeability, and proton conductivity were used to characterize the overall properties. FT-IR spectra exhibited the presence of interaction of chitosan and n-phthaloyl/chitosan. SEM analysis showed that the surface roughness of composite membrane increases as the n-phthaloyl loading increases. The highest proton conductivity of synthesized membrane is at 2.4 mS.cm-1 and is higher than pristine chitosan membrane at 1.6 mS.cm-1. Moreover, with n-phthaloyl/chitosan addition, the methanol permeability was also improved. The correlation between proton conductivity and methanol permeability in composite membranes suggests that the blend has its potential in DMFC application.
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