Stokes Laboratories, School of Engineering, Bernal Institute, University of Limerick, Limerick, Ireland.
Stokes Laboratories, School of Engineering, Bernal Institute, University of Limerick, Limerick, Ireland; SFI Centre for Advanced Materials and BioEngineering Research, Ireland.
Int J Biol Macromol. 2022 Nov 30;221:1142-1149. doi: 10.1016/j.ijbiomac.2022.09.097. Epub 2022 Sep 14.
Sustainable materials are attracting a lot of attention since they will be critical in the creation of the next generation of products and devices. In this study, hydrogels were effectively synthesized utilizing lignin, a non-valorised biopolymer from the paper industry. This study proposes a method based on utilizing lignin to create highly swollen hydrogels using poly(ethylene) glycol diglycidyl ether (PEGDGE) as a crosslinking agent. The influence of different crosslinker ratios on the structural and chemical properties of the resultant hydrogels was investigated. Pore size was observed to be lowered when the amount of crosslinker was increased. The inclusion of additional hydrophilic groups in the hydrogel network decreased the swelling capacity of the hydrogels as the crosslinking density increases. These precursor materials were carbonised and electrochemically tested for application as electrodes for supercapacitors with capacitance characterized as a function of crosslinker ratio.
可持续材料正受到广泛关注，因为它们将在下一代产品和设备的开发中发挥关键作用。在这项研究中，利用木质素——一种来自造纸工业的未充分利用的生物聚合物，成功合成了水凝胶。本研究提出了一种方法，利用木质素与聚乙二醇二缩水甘油醚（PEGDGE）作为交联剂，制备高度溶胀的水凝胶。研究了不同交联剂比例对所得水凝胶结构和化学性质的影响。当交联剂用量增加时，观察到孔径降低。当交联密度增加时，水凝胶网络中引入更多的亲水性基团会降低水凝胶的溶胀能力。这些前体材料被碳化，并进行电化学测试，以作为超级电容器的电极应用，其电容作为交联剂比例的函数进行了表征。
