Fabrication of electrochemical cell based on i-carrageenan doped NH4HCO2 solid electrolyte

IF 3 4区材料科学 Q3 CHEMISTRY, PHYSICAL Solid State Ionics Pub Date : 2025-01-01 DOI:10.1016/j.ssi.2024.116757

V. Moniha , K. Venkatesh , M. Premalatha , S. Monisha , S. Selvalakshmi , B. Archana , M. Alagar , B. Sundaresan

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Abstract

Solution casting method was used to develop a natural polymer electrolyte (NPE) based on iota carrageenan (iCG) using different amounts of NH₄HCO₂. Distilled Water was chosen as the solvent. The structural, thermal, electrical, and electrochemical analyses of the iCG: NH₄HCO₂ system confirmed its non-crystalline nature, low glass transition temperature (T_g = 48 °C), maximum DC conductivity and electrochemical stability (3.11 V). The maximum DC conductivity for the composition 1 g iCG: 0.4 wt% NH₄HCO₂ was observed to be 1.94 × 10⁻³ S cm⁻¹. A primary proton battery (PPB) was constructed by sandwiching the optimum electrolyte between MnO₂ as the cathode and Zn/ZnSO₄·7H₂O as the anode to evaluate the efficiency of the 1 g iCG: 0.4 wt% NH₄HCO₂ NPE. Additionally, a single PEMFC was fabricated with 1 g iCG: 0.4 wt% NH₄HCO₂ NPE. An OCV for PPB and PEM fuel cell were found to be 1.60 V and 616 mV, respectively.

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来源期刊

Solid State Ionics 物理-物理：凝聚态物理

CiteScore

6.10

自引率

3.10%

发文量

152

审稿时长

58 days

期刊介绍： This interdisciplinary journal is devoted to the physics, chemistry and materials science of diffusion, mass transport, and reactivity of solids. The major part of each issue is devoted to articles on: (i) physics and chemistry of defects in solids; (ii) reactions in and on solids, e.g. intercalation, corrosion, oxidation, sintering; (iii) ion transport measurements, mechanisms and theory; (iv) solid state electrochemistry; (v) ionically-electronically mixed conducting solids. Related technological applications are also included, provided their characteristics are interpreted in terms of the basic solid state properties. Review papers and relevant symposium proceedings are welcome.