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Presently, ethylene oxide (EtO) is posing a significant threat to both human health and the environment due to occasional or deliberate emissions. However, few works so far have focused on this issue. It is urgent to explore novel and effective technology to protect against the threat of EtO. Herein, a series of AC/ZSM-5 composites were prepared to improve the adsorption performance for EtO, evaluated by dynamic breakthrough experiments. Particularly, the AC/ZSM-20% composite demonstrated a more excellent adsorption capacity of 81.9 mg/g at 25 °C and 50% RH than that of pristine AC and ZSM-5 with 32.5 and 52.3 mg/g, respectively. Moreover, the adsorption capacity of the AC/ZSM-20% composite remained constant even after five adsorption-desorption cycles. The adsorption mechanism of EtO on the composite is further revealed by density functional theory (DFT) calculations. [ABSTRACT FROM AUTHOR]

Presently, two‐dimensional (2D) metal–organic framework (MOF) are drawing increasing attention in energy‐storage areas. However, more and complexed factors would affect the nucleation and growth of 2D MOFs, and subsequently affect the final performance. Particularly, it is important to control the coordination rate between ions and ligands. In this paper, MXene was directly used as titanium source to coordinate with an organic ligand to form Ti‐MOF sheets. To further boost the performance, mesopores were introduced in preparing 2D Ti‐MOF, constructing hierarchical porous Ti‐MOF@Ti3C2TX hybrids. Results showed that diffusion‐controlled behaviors play a dominant role over surface capacitive behaviors during the charge storage process of the hierarchical porous hybrids. A hybrid supercapacitor (HSC) assembled with the obtained HP‐Ti‐MOF@Ti3C2TX and activated carbon (AC) exhibited an energy density of 22.9 Wh kg−1 at a power density of 850 W kg−1 (1 A g−1), and a power density of 4.25 kW kg−1 at an energy density of 15.3 Wh kg−1 (5 A g−1). The present strategy is expected to provide design ideas for novel energy‐storage electrode materials. [ABSTRACT FROM AUTHOR]

The NiCo 2 O 4 nanowires and reduced graphene oxide (rGO) hybrid nanostructure has been constructed on carbon fibers (NiCo 2 O 4 /rGO/CF) via a hydrothermal method. The effects of graphene oxide (GO) concentration on the structure and performance of the NiCo 2 O 4 /rGO/CF were investigated in detail to obtain the optimized electrode. When the GO concentration was 0.4 mg ml -1 , the rGO/NiCo 2 O 4 /CF composite exhibited a maximum specific capacitance of 931.7 F g -1 at 1 A g -1 , while that of NiCo 2 O 4 /CF was 704.9 F g -1 . Furthermore, the NiCo 2 O 4 /rGO/CF//AC asymmetric supercapacitor with a maximum specific capacitance of 61.2 F g -1 at 1 A g -1 was fabricated, which delivered a maximum energy density (24.6 W h kg -1 ) and a maximum power density (8477.7 W kg -1 ). Results suggested that the NiCo 2 O 4 /rGO/CF composite would be a desirable electrode for flexible supercapacitors., Competing Interests: There are no conflicts to declare., (This journal is © The Royal Society of Chemistry.)