Plasma Catalytic Removal of Hexanal over Co–Mn Solid Solution: Effect of Preparation Method and Synergistic Reaction of Ozone

Removal of hexanal via a post-plasma catalysis system over a Co–Mn solid solution at ambient temperature and pressure was investigated in this study. Results showed that CoMn­(9/1) prepared by a citric acid method exhibited the best catalytic activity, which could be ascribed to the higher redox property. Moreover, the coprecipitation method was applied and improved CO₂ selectivity significantly, which could be due to smaller grain size, larger surface area, and higher oxygen storage capacity. The reaction pathway and intermediates were analyzed by in situ Fourier transfrom infrared spectroscopy. In addition, results indicated that the removal of hexanal included direct decomposition by plasma and further oxidation of intermediates on the catalyst surface. Furthermore, it could be inferred that the intermediates were further oxidized by the synergistic effect between active oxygen species and catalyst and that the utilization of ozone was the key point in the process

The Application of Y Series Acceptor-Based Double-Cable Polymers in Single-Material Organic Solar Cells

The development of efficient and stable organic photovoltaic (OPV) systems for commercial applications has long been a primary objective. While single-component material systems have demonstrated promising operational and thermal stability, their efficiency still lags behind that of multicomponent bulk heterojunction devices due to limitations in scarce building blocks, complex synthesis processes, and challenges in controlling morphology. In this work, we present a novel approach by introducing a fused-ring electron acceptor as a pendant segment, which offers new possibilities for the development of double-cable single-component copolymers. This innovative strategy not only broadens their spectral absorption but also simplifies their synthesis complexity. Through careful adjustment of molecular weight, we achieved an outstanding power conversion efficiency of 9.35% and a minimized energy loss of 0.517 eV, which is one of the best results reported for structure well-defined double-cable copolymer-based OPVs. Impressively, the designed double-cable polymers exhibit excellent photo, thermal, and mechanical stabilities, further highlighting their potential for practical applications