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聚合物电解质及纳米结构薄膜中二氧化钛纳米颗粒的小角X射线散射研究

SAXS Studies of TiO₂ Nanoparticles in Polymer Electrolytes and in Nanostructured Films.

作者信息

Turković Aleksandra, Dubček Pavo, Juraić Krunoslav, Drašner Antun, Bernstorff Sigrid

机构信息

Institute "Ruđer Bošković", P.O. Box 180, HR-10002 Zagreb, Croatia.

Sincrotrone Trieste, ss. 14, km 163, 5 Basovizza, 34012 Trieste, Italy.

出版信息

Materials (Basel). 2010 Nov 22;3(11):4979-4993. doi: 10.3390/ma3114979.

DOI:10.3390/ma3114979
PMID:28883365
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5445779/
Abstract

Polymer electrolytes as nanostructured materials are very attractive components for batteries and opto-electronic devices. (PEO)₈ZnCl₂ polymer electrolytes were prepared from PEO and ZnCl₂. The nanocomposites (PEO)₈ZnCl₂/TiO₂ themselves contained TiO₂ nanograins. In this work, the influence of the TiO₂ nanograins on the morphology and ionic conductivity of the nanocomposite was systematically studied by transmission small-angle X-ray scattering (SAXS) simultaneously recorded with wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC) at the synchrotron ELETTRA. Films containing nanosized grains of titanium dioxide (TiO₂) are widely used in the research of optical and photovoltaic devices. The TiO₂ films, prepared by chemical vapor deposition and e-beam epitaxy, were annealed in hydrogen atmospheres in the temperature range between 20 °C and 900 °C in order to study anatase-rutile phase transition at 740 °C. Also, grazing-incidence small angle X-ray scattering (GISAXS) spectra for each TiO₂ film were measured in reflection geometry at different grazing incident angles. Environmentally friendly galvanic cells, as well as solar cells of the second generation, are to be constructed with TiO₂ film as working electrode, and nanocomposite polymer as electrolyte.

摘要

作为纳米结构材料的聚合物电解质是电池和光电器件非常有吸引力的组件。(PEO)₈ZnCl₂聚合物电解质由PEO和ZnCl₂制备而成。纳米复合材料(PEO)₈ZnCl₂/TiO₂本身含有TiO₂纳米颗粒。在这项工作中，通过在同步加速器ELETTRA上同时记录广角X射线衍射(WAXD)和差示扫描量热法(DSC)的透射小角X射线散射(SAXS)，系统地研究了TiO₂纳米颗粒对纳米复合材料形态和离子电导率的影响。含有纳米二氧化钛(TiO₂)颗粒的薄膜广泛用于光学和光伏器件的研究。通过化学气相沉积和电子束外延制备的TiO₂薄膜在氢气气氛中于20℃至900℃的温度范围内退火，以研究740℃时的锐钛矿-金红石相变。此外，在不同掠入射角下，以反射几何结构测量了每个TiO₂薄膜的掠入射小角X射线散射(GISAXS)光谱。环保型原电池以及第二代太阳能电池将以TiO₂薄膜作为工作电极，以纳米复合聚合物作为电解质来构建。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/3f2aa557dfd2/materials-03-04979-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/fdbee66ce539/materials-03-04979-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/5717ebb2bd48/materials-03-04979-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/fd9edeaf88b4/materials-03-04979-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/43b3b33c188b/materials-03-04979-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/d798a85410fe/materials-03-04979-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/eaabc521d065/materials-03-04979-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/4a17e043687b/materials-03-04979-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/0187bdda7075/materials-03-04979-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/3f2aa557dfd2/materials-03-04979-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/fdbee66ce539/materials-03-04979-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/5717ebb2bd48/materials-03-04979-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/fd9edeaf88b4/materials-03-04979-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/43b3b33c188b/materials-03-04979-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/d798a85410fe/materials-03-04979-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/eaabc521d065/materials-03-04979-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/4a17e043687b/materials-03-04979-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/0187bdda7075/materials-03-04979-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/80d0/5445779/3f2aa557dfd2/materials-03-04979-g009.jpg

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