A proton-conducting biopolymer electrolyte system based on corn starch doped with 0.0 to 4.0 wt% of Al(OH)₃ has been prepared through the solution casting method. Scanning electron microscopy and confocal micrographs showed a partial alteration of starch granule boundary and aluminum agglomerates formation as a function of the Al(OH)₃ concentration. X-ray diffraction and Fourier transform infrared spectra showed a decrease in the relative crystallinity and in the absorbance ratio 1047/1022, associated with the disruption of double-helix structures and the region of starch granule disorder, in concordance with the C₁ and C₄ deconvoluted curves obtained by CP/MAS ¹³C-NMR. Furthermore, corn starch films (CSF) mostly showed AlO₅ (pentahedral) and AlO₆ (octahedral) species as a function of the Al(OH)₃ concentration, associated with a suitable Al³⁺ distribution through the CSF arrangement obtained by CP/MAS ²⁷Al-NMR. Particularly, CSF with 2.0 wt% of Al(OH)₃ showed 27.5 F g⁻¹ of specific capacitance and 7.5 mS cm⁻¹ of electrical conductivity values, using voltammetry cyclic and the van der Pauw four-point test, respectively. The electrochemical behaviour of CSF was occasioned by saturation limit of chemical bonds between the functional groups into the starch molecule and the Al³⁺ ions was achieved, this disarrange and/or bankrupt the sequence of CSF microstructure, caused by the coexistence of free Al³⁺ ions and aluminum agglomerates. All these results implied that the present proton-conducting biopolymer electrolyte system based on corn starch–Al(OH)₃ has the potential to be applied in electrochemical devices.

已经通过溶液浇铸方法制备了基于掺杂有 0.0 至 4.0 wt% Al(OH) _{3 的}玉米淀粉的质子传导生物聚合物电解质体系。扫描电子显微镜和共聚焦显微照片显示淀粉颗粒边界和铝附聚物形成的部分改变是 Al(OH) ₃浓度的函数。X 射线衍射和傅里叶变换红外光谱显示相对结晶度和吸光度比 1047/1022 降低，与双螺旋结构的破坏和淀粉颗粒无序区域有关，与 C ₁和 C一致。CP/MAS ¹³获得的_{4 条}解卷积曲线核磁共振。此外，玉米淀粉膜（CSF）大多显示的AlO ₅（五面体）和A10 ₆（八面体）物质随着Al（OH）的函数₃浓度，用合适的Al关联³⁺通过CP获得的CSF排列分布/ MAS ²⁷ Al-NMR。特别地，分别使用伏安循环法和范德堡四点测试，具有2.0wt%的Al(OH) _{3 的}CSF表现出27.5 F g ^-1的比电容和7.5 mS cm ^-1的电导率值。CSF的电化学行为是由淀粉分子中的官能团与Al ³⁺之间的化学键的饱和极限引起的离子的实现，这会打乱和/或破坏 CSF 微结构的顺序，这是由游离的 Al ³⁺离子和铝团聚体的共存引起的。所有这些结果表明，目前基于玉米淀粉-Al(OH) _{3 的}质子传导生物聚合物电解质系统具有应用于电化学装置的潜力。