Jeżowski Paweł, Kowalczewski Przemysław Łukasz
Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, 4 Berdychowo St., 60-965 Poznań, Poland.
Department of Food Technology of Plant Origin, Poznań University of Life Sciences, 31 Wojska Polskiego St., 60-624 Poznań, Poland.
Polymers (Basel). 2023 Aug 26;15(17):3557. doi: 10.3390/polym15173557.
The presented work discusses in detail the preparation of a cheap and environmentally friendly biopolymer membrane from isinglass and its physicochemical characterisation. One of the possible uses of the obtained membrane can be as a separator between electrodes in novel green electrochemical devices as in, for example, electric double-layer capacitors (EDLCs). The functionality of the mentioned membrane was investigated and demonstrated by classical electrochemical techniques such as cyclic voltammetry (CV), galvanostatic cycling with potential limitation (GCPL), and electrochemical impedance spectroscopy (EIS). The obtained values of capacitance (approximately 30 F g) and resistance (approximately. 3 Ohms), as well as the longevity of the EDLC during electrochemical floating at a voltage of 1.6 V (more than 200 h), show that the proposed biopolymer membrane could be an interesting alternative among the more environmentally friendly energy storage devices, while additionally it could be more economically justified.
所展示的工作详细讨论了由鱼胶制备廉价且环保的生物聚合物膜及其物理化学表征。所得膜的一种可能用途是作为新型绿色电化学装置中电极之间的隔膜,例如在双电层电容器(EDLC)中。通过循环伏安法(CV)、恒电流电位限制循环(GCPL)和电化学阻抗谱(EIS)等经典电化学技术对上述膜的功能进行了研究和论证。所获得的电容值(约30 F/g)和电阻值(约3欧姆),以及EDLC在1.6 V电压下进行电化学浮动时的寿命(超过200小时)表明,所提出的生物聚合物膜在更环保的储能装置中可能是一个有趣的选择,同时在经济上也更合理。