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聚苯胺@UiO-66和聚苯胺@UiO-66-NH聚合物-金属有机框架杂化复合材料作为可调谐半导体材料

PANI@UiO-66 and PANI@UiO-66-NH Polymer-MOF Hybrid Composites as Tunable Semiconducting Materials.

作者信息

Shanahan Jordan, Kissel Daniel S, Sullivan Eirin

机构信息

Department of Chemistry, Lewis University, One University Pkwy, Romeoville, Illinois 60446, United States.

Department of Chemistry, Illinois State University, S University St, Normal, Illinois 61761, United States.

出版信息

ACS Omega. 2020 Mar 17;5(12):6395-6404. doi: 10.1021/acsomega.9b03834. eCollection 2020 Mar 31.

DOI:10.1021/acsomega.9b03834
PMID:32258874
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7114136/
Abstract

This investigation explores optimum synthetic conditions for novel polymer-metal organic framework hybrid composites composed of Zr-terephthalate-based MOF UiO-66 and conductive polyaniline (PANI) nanofibers in an effort to optimize conductivity while minimizing MOF structural deformation. Successful syntheses of self-assembled PANI nanofibers in PANI@UiO-66 and PANI@UiO-66-NH composites were confirmed using scanning electron microscopy, infrared spectroscopy, and powder X-ray diffraction. The polymer-MOF composites show different bonding synergies to the PANI nanofibers depending on the organic linker used. Electronic properties of the post-synthetically modified PANI@UiO-66 and PANI@UiO-66-NH were investigated using UV-vis diffuse reflectance spectroscopy. Sheet resistivity of the self-assembled polymer-MOF composites was determined under an inert atmosphere at room temperature using four-point probe measurements to confirm tunable semiconductivity ranging from 40 to 2 mS/sq. Furthermore, the effects of aniline oxidation on the crystallinity and coordination of UiO-66 and UiO-66-NH were determined through analysis of these results.

摘要

本研究探索了由基于对苯二甲酸锆的金属有机框架UiO - 66和导电聚苯胺（PANI）纳米纤维组成的新型聚合物 - 金属有机框架杂化复合材料的最佳合成条件，旨在优化导电性，同时使金属有机框架的结构变形最小化。通过扫描电子显微镜、红外光谱和粉末X射线衍射确认了在PANI@UiO - 66和PANI@UiO - 66 - NH复合材料中成功合成了自组装的PANI纳米纤维。根据所使用的有机连接体，聚合物 - 金属有机框架复合材料对PANI纳米纤维表现出不同的键合协同作用。使用紫外 - 可见漫反射光谱研究了后合成修饰的PANI@UiO - 66和PANI@UiO - 66 - NH的电子性质。在室温下的惰性气氛中，使用四点探针测量法测定了自组装聚合物 - 金属有机框架复合材料的薄层电阻，以确认其可调半导体性范围为40至2 mS/sq。此外，通过对这些结果的分析，确定了苯胺氧化对UiO - 66和UiO - 66 - NH的结晶度和配位的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/efed969f5a9b/ao9b03834_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/d88f8beff556/ao9b03834_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/758de1a488b2/ao9b03834_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/eae0fbf89aa9/ao9b03834_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/8f4ce019c067/ao9b03834_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/7d8679d9922a/ao9b03834_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/efed969f5a9b/ao9b03834_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/d88f8beff556/ao9b03834_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/758de1a488b2/ao9b03834_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/eae0fbf89aa9/ao9b03834_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/8f4ce019c067/ao9b03834_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/7d8679d9922a/ao9b03834_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc6/7114136/efed969f5a9b/ao9b03834_0002.jpg

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