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Many perovskite oxides (ABO3) are considered the most promising alternatives to noble metal catalysts for oxygen reduction reaction (ORR) due to their high intrinsic activities. However, their electrocatalytic performance is often limited by poor electrical conductivity and low specific surface area. Here an electrochemically induced calcium‐leaching process is reported to greatly increase the electrochemical...
Catheters are commonly used in hospital treatment, but most of the medical materials used in the production of catheters are hydrophobic, with high surface friction and weak antibacterial properties, so a large amount of money is spent on the treatment of catheter‐related urinary tract infections worldwide every year. To improve the comfort of patients, weaken the friction and damage between urinary...
The modification of metallic Zn anode contributes to solving the cycling issue of Zn‐ion batteries (ZIBs) by restraining the dendrite growth and side reactions. In this regard, modulating (002) Zn is an effective way to prolong the lifespan of ZIBs with a parallel arrangement of Zn deposition. Herein, the authors propose to add trace amounts of Zn(BF4)2 additive in 3 M ZnSO4 to promote in‐plane Zn...
Rechargeable aqueous zinc ion batteries (ZIBs) represent a promising technology for large‐scale energy storage due to their high capacity, intrinsic safety and low cost. However, Zn anodes suffer from poor reversibility and cycling stability caused by the side‐reactions and dendrite issues, which limit the Zn utilization in the ZIBs. Herein, to improve the durability of Zn under high utilization,...
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