基于 2-吡啶基聚苯并咪唑与聚（乙烯基膦酸）共混的燃料电池高温聚合物电解质膜的特性

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2024-05-11 DOI:10.1177/09540083241253165

Yashesh J Rathwa, Sanjay K Parmar, Navin P Chikhaliya

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引用次数: 0

摘要

本研究的重点是探索基于 2-吡啶桥的聚苯并咪唑（2-Py-PBIs）新材料在质子交换膜燃料电池（PEMFC）中的各种能源相关用途。将化学能转化为电能的电化学装置被称为燃料电池。利用以聚磷酸为溶剂的溶液聚合法，从 4,4'-([2,4′-联吡啶]-2′,6′-二基)双（苯-1,2-二胺）合成了一系列 2-吡-PBI。2-吡啶桥聚苯并咪唑与聚（乙烯基膦酸）交联，有助于改善膜的性能，如机械性能和质子传导性。傅立叶变换红外光谱用于表征化学结构，Ubbelohde 粘度计用于测定固有粘度。此外，还研究了 2-Py-PBI 的氧化稳定性、膨胀率、离子交换能力和吸水性。热重分析用于评估热稳定性。与传统的聚苯并咪唑膜相比，获得的 2-Py-PBIs 膜具有热稳定性和机械强度。2-Py-PBIs:PVPA 膜的质子传导率在 0.10 µS/m 至 4.65 µS/m 之间。

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The characteristics of high temperature polymer electrolyte membranes for fuel cell based on 2-pyridene based polybenzimidazole blended with poly(vinyl-phosphonic acid)

The present study has focused on exploring new 2-pyridine-bridge-based polybenzimidazole (2-Py-PBIs) based materials for various energy-related uses in proton exchange membrane fuel cells (PEMFC). An electrochemical device, which transforms chemical energy into electrical energy, is known as fuel cell. Using solution polymerization with polyphosphoric acid as a solvent, a series of 2-Py-PBIs were synthesised from the 4,4'-([2,4′-bipyridine]-2′,6′-diyl)bis (benzene-1,2-diamine). 2-Pyridine bridge Polybenzimidazoles are cross-linked with poly (vinylphosphonic acid), which helps us to improve membrane properties like mechanical properties and proton conductivities. FT-IR was used to characterize chemical structure, Ubbelohde viscometer was employed to determine the inherent viscosity. Additionally investigated were the oxidative stability, swelling ratio, ion exchange capability, and water uptake for 2-Py-PBIs. Thermogravimetric analysis is used to evaluate thermal stability. The obtained 2-Py-PBIs membranes were thermally stable and mechanically strong when compared with conventional polybenzimidazole-based membranes. The 2-Py-PBIs:PVPA membranes showed proton conductivity between 0.10 µS/m to 4.65 µS/m.

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来源期刊

High Performance Polymers 化学-高分子科学

CiteScore

4.20

自引率

14.30%

发文量

106

审稿时长

1.2 months

期刊介绍： Health Services Management Research (HSMR) is an authoritative international peer-reviewed journal which publishes theoretically and empirically rigorous research on questions of enduring interest to health-care organizations and systems throughout the world. Examining the real issues confronting health services management, it provides an independent view and cutting edge evidence-based research to guide policy-making and management decision-making. HSMR aims to be a forum serving an international community of academics and researchers on the one hand and healthcare managers, executives, policymakers and clinicians and all health professionals on the other. HSMR wants to make a substantial contribution to both research and managerial practice, with particular emphasis placed on publishing studies which offer actionable findings and on promoting knowledge mobilisation toward theoretical advances. All papers are expected to be of interest and relevance to an international audience. HSMR aims at enhance communication between academics and practitioners concerned with developing, implementing, and analysing health management issues, reforms and innovations primarily in European health systems and in all countries with developed health systems. Papers can report research undertaken in a single country, but they need to locate and explain their findings in an international context, and in international literature.