Clean Energy and Renewable Tech

Abstract This review critically examines the recent progress in the development of sulfonated polyether sulfone (SPES) and its derivatives (including sulfonated polyether sulfone with open sulfonic acid groups (SPESOS)) as functional matrices for next-generation proton exchange membrane (PEM) fuel cells. SPES-based membranes offer a tunable backbone, excellent thermal and mechanical stability, and chemical resistance, yet […]

Abstract This study explores the electrical and dielectric properties of hybrid solid electrolytes made from hydrothermally synthesized La0·56Li0·33TiO3 (LLTO) oxide and oxidized polyvinyl alcohol (OPVA). The influence of LLTO on ionic conductivity and dielectric behavior was assessed by incorporating it into the OPVA matrix at weight ratios of 5, 10, 20, and 30%. Read More

Abstract A novel solid biopolymer electrolyte (SBPE) hybrid was developed by directly linking oxidized polyvinyl alcohol (OPVA) with carboxymethyl cellulose (CMC) via ester formation. The CMC used in this study had a degree of substitution (DS) of 1.12, while OPVA exhibited partial oxidation with a carbonyl content of 60%. Read More

Qana A. Alsulami1 · Wafa A. Bawazir1 · Sherif M. A. S. Keshk2 Received: 14 December 2024 / Accepted: 25 February 2025 © Qatar University and Springer Nature Switzerland AG 2025 Abstract Chitosan (CS) is a naturally occurring biopolymer that is readily accessible and widely used in various industrial applications. However, its low proton conductivity, particularly at elevated temperatures, poses […]

Mohamed A. Ben Ali1 · Mohamed A. Ben Moussa2 · Souhib Umer Ilyas1 · Rizwan Nasir1 · Dorra Ghorbel3,4 · Sherif M. A. S. Keshk5 Received: 28 October 2024 / Accepted: 18 March 2025 © The Author(s) 2025 Abstract Alternative proton exchange membranes (PEMs) with high proton conductivity must be fabricated at reasonable costs to qualify as commercially used proton-exchange membrane fuel cells (PEMFCs). Read more

Materials for Renewable and Sustainable Energy is an open access journal, focusing on research for renewable and sustainable energy technologies.