Enhanced Proton Conductivity of a Sulfonated Polyether Sulfone Octyl Sulfonamide Membrane via the Incorporation of Protonated Montmorillonite

被引：8

作者：

Mabrouk, Walid ^{[1
]}

Charradi, Khaled ^{[2
]}

Mellekh, Ahmed ^{[3
]}

Hafiane, Amor ^{[1
]}

Alsulami, Qana A. ^{[4
]}

Meherzi, Hager M. ^{[5
]}

Chtourou, Radhouane ^{[2
]}

Keshk, Sherif M. A. S. ^{[2
]}

机构：

[1] CERTE, Lab Water, Membranes & Biotechnol Environm, Soliman 8020, Tunisia

[2] Res & Technol Ctr Energy, Nanomat & Syst Renewable Energy Lab, Technopark Borj Cedria, BP 095, Hammam Lif, Tunisia

[3] Univ Carthage, Chem Lab Mat, FSB, LR13ES08, Bizerte 7021, Tunisia

[4] King Abdulaziz Univ, Fac Sci, Chem Dept, Jeddah 21589, Saudi Arabia

[5] Univ Tunis Manar, Lab Analyt Chem & Electrochem, FST, Campus, LR99ES15, Tunis 2092, Tunisia

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2023年 / 52卷 / 03期

关键词：

SPESOS; proton conductivity; protonated montmorillonite; composite membrane; fuel cells; ELECTROLYTE MEMBRANES;

D O I：

10.1007/s11664-022-10183-y

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Hybrid membranes consisting of sulfonated poly (ether sulfone) octyl sulfonamide (SPESOS) cast together with protonated montmorillonite (H-MMT, 1, 3, and 6 wt%) were fabricated and characterized. Fourier-transform infrared (FT-IR) spectra of the H-MMT/SPESOS composites confirmed that no chemical reactions occurred between the SPESOS and clay. X-ray diffractograms (XRD) showed a significant shift in the major peak of SPESOS at 2 theta = 15.5 degrees due to the incorporation of H-MMT. Furthermore, scanning electron microscopy (SEM) confirmed a homogeneous structure of the composite, and thermogravimetric analysis (TGA) results revealed that the addition of H-MMT promoted water absorption via the decrease in the loss of composite mass during evaporation. The SPESOS with H-MMT had higher water retention, contact angle, and proton conductivity values than pristine SPESOS. The proton conductivity of the hybrid membranes, however, improved at 100 degrees C from 42 mS/cm in pure SPESOS to 787, 350, and 300 mS/cm for the 1, 3, and 6 wt% H-MMT hybrids, respectively. These results demonstrate that the incorporation of the H-MMT is a viable strategy to boost the performance of SPESOS to construct a possible membrane for applying in fuel cells.

引用

页码：2158 / 2167

页数：10