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基于聚乙烯醇（PVA）与壳聚糖（CS）聚合物的多孔质子传导固体聚合物共混电解质的合成：结构、形态和电化学性质

Synthesis of Porous Proton Ion Conducting Solid Polymer Blend Electrolytes Based on PVA: CS Polymers: Structural, Morphological and Electrochemical Properties.

作者信息

M Nofal Muaffaq, Aziz Shujahadeen B, Hadi Jihad M, Abdulwahid Rebar T, Dannoun Elham M A, Marif Ayub Shahab, Al-Zangana Shakhawan, Zafar Qayyum, Brza M A, Kadir M F Z

机构信息

Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia.

Hameed Majid Advanced Polymeric Materials Research Laboratory, Department of Physics, College of Science, University of Sulaimani, Kurdistan Regional Government, Qlyasan Street, Sulaimani 46001, Iraq.

出版信息

Materials (Basel). 2020 Oct 30;13(21):4890. doi: 10.3390/ma13214890.

DOI:10.3390/ma13214890
PMID:33143345
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7663494/
Abstract

In this study, porous cationic hydrogen (H) conducting polymer blend electrolytes with an amorphous structure were prepared using a casting technique. Poly(vinyl alcohol) (PVA), chitosan (CS), and NHSCN were used as raw materials. The peak broadening and drop in intensity of the X-ray diffraction (XRD) pattern of the electrolyte systems established the growth of the amorphous phase. The porous structure is associated with the amorphous nature, which was visualized through the field-emission scanning electron microscope (FESEM) images. The enhancement of DC ionic conductivity with increasing salt content was observed up to 40 wt.% of the added salt. The dielectric and electric modulus results were helpful in understanding the ionic conductivity behavior. The transfer number measurement (TNM) technique was used to determine the ion () and electron () transference numbers. The high electrochemical stability up to 2.25 V was recorded using the linear sweep voltammetry (LSV) technique.

摘要

在本研究中，采用流延技术制备了具有非晶结构的多孔阳离子氢（H）传导聚合物共混电解质。使用聚乙烯醇（PVA）、壳聚糖（CS）和NHSCN作为原材料。电解质体系X射线衍射（XRD）图谱的峰展宽和强度下降表明非晶相的生长。多孔结构与非晶性质相关，这通过场发射扫描电子显微镜（FESEM）图像得以可视化。观察到随着盐含量增加，直流离子电导率增强，直至添加盐的含量达到40 wt.%。介电和电模量结果有助于理解离子导电行为。使用转移数测量（TNM）技术来确定离子（）和电子（）转移数。采用线性扫描伏安法（LSV）技术记录了高达2.25 V的高电化学稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/e80b69549e9a/materials-13-04890-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/5ee6d65b3aa2/materials-13-04890-g001a.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/696182410d49/materials-13-04890-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/5ae4b0026497/materials-13-04890-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/75a7eff921dc/materials-13-04890-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/e80b69549e9a/materials-13-04890-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/5ee6d65b3aa2/materials-13-04890-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/31af02beb7b8/materials-13-04890-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/77e373ce5693/materials-13-04890-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/88f54825b4b7/materials-13-04890-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/696182410d49/materials-13-04890-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/5ae4b0026497/materials-13-04890-g006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e053/7663494/e80b69549e9a/materials-13-04890-g008.jpg

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