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A novel and efficient α‐MnO2‐N/C@active carbon (AC) catalyst was proposed and synthesized through a surface modification method based on imprinting process. Uniformly dispersed α‐MnO2 and N/C sites were constructed simultaneously and the competitive adsorption of metal precursors with nonmetal precursors was avoided. Conformational relationship of α‐MnO2‐N/C@AC revealed that α‐MnO2 and graphite N...
Liquid distributors have an important influence on packed towers' hydrodynamics and mass transfer performances. This work has designed a narrow‐trough liquid distributor with stepped baffle plates to regulate liquid flow. The liquid mainstream is diverted layer by stepped baffles to realize the uniform distribution of liquid. The relationship between liquid flow and the baffle plates arrangement is...