Jung, Moo Young Lee, Chanyong Park, Jihye Son, Ji-Won Yun, Yong Ju Jun, Yongseok 2024-06-13T02:00:33Z 2024-06-13T02:00:33Z 2024-06-13 2024-06 1385-8947 https://pubs.kist.re.kr/handle/201004/150063 This study investigates the growth mechanisms of NiCo-layered double hydroxide (LDH) electrodeposition on indium tin oxide (ITO) substrates, aiming to optimize thickness control for transparent supercapacitor applications. Despite the promising energy storage capabilities of NiCo-LDH, long-term cycle stability and transparency degradation due to irreversible redox reactions limit its applicability. To address these challenges, we introduced networked MXene nanosheets into the NiCo-LDH matrix, significantly enhancing electrochemical properties and cycle resilience while maintaining excellent transparency. Under optimized conditions, NiCo-LDH and MXene composites achieved an impressive areal capacitance of 136.9F cm -2 and retained 74.2 % capacitance even after 7000 charge - discharge cycles. Notably, the transparency of the composite remained strong at 80.1 %, outperforming NiCo-LDH without the networked MXene, which retained only 51.4 % transparency after the same cycles, thus indicating that the well -networked MXene nanosheets played a crucial role in improving electrical conductivity and charge -transfer efficiency across the electrode surface. The transparent symmetric supercapacitor developed, utilizing MXene-coated NiCo-LDH, demonstrated outstanding performance with an energy density of 2.23 mu Wh cm -2 at a power density of 120.00 mu W cm -2 . Moreover, it showcased an admirable capacitance retention of 85.9 % following 9000 charge - discharge cycles, underlining the robustness of the composites and efficiency for transparent supercapacitor applications. In conclusion, this research highlights the potential of NiCo-LDH/MXene composites for transparent supercapacitors. By carefully controlling thickness and optimizing MXene concentration, we effectively addressed durability and transparency challenges during extended charge - discharge cycles. English Elsevier BV Transparent supercapacitors with networked MXene on NiCo-layered double hydroxide Article 10.1016/j.cej.2024.151556 1 Chemical Engineering Journal, v.490 Chemical Engineering Journal 490 N scie scopus 001239369500001 2-s2.0-85192216432 Engineering, Environmental Engineering, Chemical Engineering Article ELECTRODE Transparent supercapacitor Nickel - cobalt layered -double hydroxide MXene Cycle stability