The stability of Zn anode is significantly affected by the fluctuation of interfacial pH value, but there is still limited attention paid to this issue. In this work, we regulating the interfacial pH value to enhance the stability of Zn anode via a novel environmentally-friendly additive D-galactose (D-Gal). D-Gal with great negative electrostatic potential and a low lowest unoccupied molecular orbital (LUMO) level energy was chemisorbed on Zn anode to not only isolate H₂O contact with Zn anode. The in-situ pH test confirmed that D-Gal guaranteed a stable pH environment. Furthermore, the D-Gal additive contributes to uniform deposition for stable Zn anode. Therefore, the Zn||Zn symmetric cell exhibits a cycle life of 2600 h at 1.0 mA·cm⁻² and 1.0 mAh·cm⁻². Even at high current density of 10 mA·cm⁻², it can stabilize 900 h. When paired with a vanadium-based cathode, the full battery demonstrated a stable capacity retention of 62.78% at 1.0 A·g⁻¹ following 2000 cycles. This work provides a new insight into interfacial stability for aqueous zinc metal batteries.

Firstly, the research status of cotton and gas sensor is introduced, and then we focuses on the application of cotton fiber as precursor of sensing material template, sensing substrate and gas sensing material in the field of gas sensing around the advantages of cotton fiber and its products, such as renewable, easy to degrade, good gas permeability and low costs. Finally, the application of cotton fiber in the field of gas sensors is summarized and prospected.

Based on the basic structural motif of the icosahedral symmetric Co₅₅ cluster, the interaction between the Co-Mo clusters with a Mo atom at different substituting sites and single-walled carbon nanotubes with different chiralities ((10, 0) and (5, 5)) was studied by density functional theory calculations. The results show that the interaction between the system of Co-Mo mixed cluster and single-walled carbon nanotubes is strongly correlated with the location of the doped Mo atom in cluster and the chirality of the single-walled carbon nanotube. Compared with pure Co₅₅ clusters, Mo atom doped clusters have obvious enhanced structural control effect on single-walled carbon nanotubes, which has enlightenment for the controllable synthesis of single-walled carbon nanotubes.