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Owing to promising applications in aircraft, military field and submarine etc., lithium-sulfur (Li-S) batteries with high energy density (2500 Wh·kg-1) are emerging as the next-generation energy storage system at low...

A capacitive immunosensor on a glassy carbon electrode (GCE) was fabricated successfully by using an insulating poly (o-phenylenediamine) (OPD) film. Two methods, covalently coupling and copolymerization, were developed to immobilize the antitransferrin onto the GCE for sensitively probing transferrin. The capacitance change of the electrode caused by the interaction between antigen -antibody was monitored by the potentiostatic step. The immunosensors demonstrated a highly specific response to transferrin in a sample solution. The stable insulating property 2283

The anode-cathode interplay is an important but rarely considered factor that initiates the degradation of aqueous zinc ion batteries (AZIBs). Herein, to address the limited cyclability issue of V-based AZIBs, Al 2 (SO 4 ) 3 is proposed as decent electrolyte additive to manipulate OH À -mediated cross-communication between Zn anode and NaV 3 O 8 • 1.5H 2 O (NVO) cathode. The hydrolysis of Al 3 + creates a pH � 0.9 strong acidic environment, which unexpectedly prolongs the anode lifespan from 200 to 1000 h. Such impressive improvement is assigned to the alleviation of interfacial OH À accumulation by Al 3 + adsorption and solid electrolyte interphase formation. Accordingly, the strongly acidified electrolyte, associated with the sedated crossover of anodic OH À toward NVO, remarkably mitigate its undesired dissolution and phase transition. The interrupted OH À -mediated communication between the two electrodes endows Zn j j NVO batteries with superb cycling stability, at both low and high scan rates.

Having the benefit of low cost, excellent stability and tolerance to extreme conditions, nanozymes are a potential alternative of horseradish peroxidase (HRP) or the other enzymes for bioanalytical chemistry, especially...