Aslan Sema
Departmentof Chemistry, Faculty of Science, Muğla Sıtkı Koçman University, Muğla Turkey.
Turk J Chem. 2021 Jun 30;45(3):661-672. doi: 10.3906/kim-2012-19. eCollection 2021.
Electrocatalytic effect of the untreated and TiO+polyacrylonitrile (PAN) modified discarded battery coal (DBC) and pencil graphite electrodes (PGE) were evaluated in fuel cell (FC) applications. TiO+PAN solution is coated on PGE and DBC electrodes by electrospinning. According to the FESEM and EDS characterizations, TiO and PAN nanofibers are found to be approximately 40 and 240 nm in size. TiO+PAN/PGE showed the best FC performances with 2.00 A cm current density and 5.05 W cm power density values, whereas TiO+PAN/DBC showed 0.68 A cm current density and 0.62 W cm power density values. Electrochemical characterizations of PGE and TiO+PAN/PGE electrodes were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. Finally, long-term FC measurement results of developed electrodes exhibited very reasonable recovery values. Along with the comparison of the electrode performances, the recovery of DBCs as electrodes for renewable energy production has been achieved.
评估了未经处理的以及经TiO+聚丙烯腈(PAN)改性的废弃电池煤(DBC)和铅笔石墨电极(PGE)在燃料电池(FC)应用中的电催化效果。通过静电纺丝将TiO+PAN溶液涂覆在PGE和DBC电极上。根据场发射扫描电子显微镜(FESEM)和能谱仪(EDS)表征,发现TiO和PAN纳米纤维的尺寸分别约为40和240纳米。TiO+PAN/PGE表现出最佳的燃料电池性能,电流密度为2.00 A/cm,功率密度为5.05 W/cm,而TiO+PAN/DBC的电流密度为0.68 A/cm,功率密度为0.62 W/cm。通过循环伏安法和电化学阻抗谱研究了PGE和TiO+PAN/PGE电极的电化学特性。最后,所开发电极的长期燃料电池测量结果显示出非常合理的回收率。除了比较电极性能外,还实现了将废弃电池煤回收用作可再生能源生产的电极。