光催化
解耦(概率)
制氢
氢
催化作用
热的
磁场
传质
电解水
分解水
联轴节(管道)
化学
化学工程
材料科学
化学物理
热力学
电解质
复合材料
物理化学
电极
电解
物理
有机化学
色谱法
量子力学
控制工程
工程类
作者
Shujian Wang,Kejian Lu,Anlan Hu,Naixu Li,Yeti Feng,Dengwei Jing,Maochang Liu
摘要
Abstract Taking monolithic TiO 2 /nickel foam as a model photocatalytic material, we hereby report the application of magnetic‐photo‐thermal coupling field toward enhanced solar photocatalytic hydrogen production. This enhancement is attributed to the increased temperature induced by eddy current effect and effective charge separation caused by the electric field force under the alternating magnetic field condition. Particularly, we demonstrate that a proper set of the position of the monolithic catalyst relative to the reaction solution, that is, at the water‐air interface, will lead to a further enhancement of the photocatalytic activity because of the improved mass transfer property of the reactants, with a hydrogen evolution rate of 104.3 μmol h −1 . Specifically, the increased temperature of the catalyst leads to the rapid evaporation of water. Hydrogen generation is thus decoupled from liquid water, avoiding kinetically disfavored bubble formation. This work provides a novel strategy to facilitate photocatalytic performance with the application of external field.
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