Alginate-based composites with appropriate characteristics as polymer-electrolyte membranes (PEMs) were prepared by blending the polysaccharide with poly(vinylsulfonic acid), reinforcing with inorganic fillers such as TiO₂ or NiFe₂O₄, and cross-linking with Ca²⁺ or Ba²⁺. The obtained membranes were studied from the structural and morphological points of view by FT-IR spectroscopy and scanning electron microscopy (SEM), respectively. Likewise, the materials were subjected to typical tests usually employed for PEMs evaluation, such as water-uptake properties, endurance in oxidative environment (Fenton reagent) and acidic solution (pH = 3), as well as mechanical and thermal behavior. The proton conductivity performances were evaluated by means of dielectric spectroscopy. The water uptake and chemical stability of the membranes were improved by the inorganic filler presence. The mechanical and thermal analysis proved the preparation of resistant membranes. The conductivity value of 3.0 × 10⁻⁴ S/cm obtained for calcium cross-linked membrane containing TiO₂ was of only one order of magnitude lower as compared to Nafion. However, this can be offset by expected lower cost and the benign nature of polysaccharide-based composite membranes.

通过将多糖与聚（乙烯基磺酸）共混，用无机填料如 TiO ₂或 NiFe ₂ O ₄增强，并与 Ca ²⁺交联，制备了具有适当特性的海藻酸盐基复合材料作为聚合物电解质膜（PEMs）或 Ba ²⁺. 分别通过 FT-IR 光谱和扫描电子显微镜 (SEM) 从结构和形态的角度研究了获得的膜。同样，对材料进行了通常用于 PEM 评估的典型测试，例如吸水性能、在氧化环境（芬顿试剂）和酸性溶液（pH = 3）中的耐久性，以及机械和热行为。质子传导性能通过介电光谱法进行评估。无机填料的存在提高了膜的吸水率和化学稳定性。机械和热分析证明了抗性膜的制备。含TiO _{2 的}钙交联膜的电导率为3.0 × 10 ^-4 S/cm仅比 Nafion 低一个数量级。然而，这可以被预期的低成本和多糖基复合膜的良性所抵消。