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Cellulose‐based monoliths with enhanced surface area and porosity
Journal of Applied Polymer Science ( IF 3 ) Pub Date : 2020-01-24 , DOI: 10.1002/app.48975 Prakash Parajuli 1 , Sanjit Acharya 1 , Yang Hu 1 , Noureddine Abidi 1
Journal of Applied Polymer Science ( IF 3 ) Pub Date : 2020-01-24 , DOI: 10.1002/app.48975 Prakash Parajuli 1 , Sanjit Acharya 1 , Yang Hu 1 , Noureddine Abidi 1
Affiliation
This study reports on a strategy of using sol–gel and supercritical drying techniques to prepare aerocellulose monoliths with enhanced specific surface area and porosity by adding NaCl particles into the cellulose solution. The addition of 5 wt% of NaCl particles led to increased specific surface area of aerocellulose monoliths (from 114 m2/g to 205 m2/g), as well as their porosity (by ~5%). The aerocellulose monoliths prepared by adding NaCl particles achieved improved porous characteristics, lightweight, lower crystallinity, and better thermal stability, as compared to the control. This study demonstrates the effectiveness of NaCl particles to tune the surface area and the pore characteristics, which provides a facile route to achieve enhanced surface area and improved pore characteristics of aerocellulose monoliths.
中文翻译:
纤维素基整体材料,具有更大的表面积和孔隙率
这项研究报告了一种通过使用溶胶-凝胶和超临界干燥技术,通过将NaCl颗粒添加到纤维素溶液中来制备比表面积和孔隙率均得到提高的纤维素单块的策略。添加5 wt%的NaCl颗粒会导致空气纤维素单块的比表面积增加(从114 m 2 / g到205 m 2/ g),以及它们的孔隙率(约5%)。与对照相比,通过添加NaCl颗粒制备的航空纤维素整料获得了改善的多孔性,重量轻,结晶度较低和更好的热稳定性。这项研究表明,NaCl颗粒可有效地调节表面积和孔特征,这为实现增加的表面积和改进的纤维素单块的孔特征提供了一种简便的途径。
更新日期:2020-01-24
中文翻译:
纤维素基整体材料,具有更大的表面积和孔隙率
这项研究报告了一种通过使用溶胶-凝胶和超临界干燥技术,通过将NaCl颗粒添加到纤维素溶液中来制备比表面积和孔隙率均得到提高的纤维素单块的策略。添加5 wt%的NaCl颗粒会导致空气纤维素单块的比表面积增加(从114 m 2 / g到205 m 2/ g),以及它们的孔隙率(约5%)。与对照相比,通过添加NaCl颗粒制备的航空纤维素整料获得了改善的多孔性,重量轻,结晶度较低和更好的热稳定性。这项研究表明,NaCl颗粒可有效地调节表面积和孔特征,这为实现增加的表面积和改进的纤维素单块的孔特征提供了一种简便的途径。