Acceleration of Liquid–Solid Redox Reaction with a Magneto-Catalyzed Method

To accelerate the chemical reaction is a key issue in the studies of catalytic chemistry. Here, by taking liquid–solid redox reaction Zn/CuSO4 as a model system, we present a remote and nontouched magneto-catalyzed method that can accelerate the chemical reaction efficiently. The effects from intensity (B) and intensity × gradient (B∇B) of applied magnetic field are distinguished, and the dominant role played by the B has been confirmed. With B increasing, the more of Zn–Cu galvanic cells and the bigger area of Cu/Cu2+ interfacial could be realized via a magnetohydrodynamics effect, which were proved by both optical and electron microscopic observations. It was found that 22 times enhancement of reaction rate and 7700 J/mol reduction of activation energy were achieved when an 8.4 T magnetic field was applied. These observations provide a magneto-catalyzed method to modulate the chemical reaction