WO3纳米片阵列在光电全解水中的应用

Photoelectrocatalytic Water Splitting Performance of WO3 Nanoplate Arrays

光电催化分解水制氢是解决能源危机和环境问题的最有效措施之一。通过简单的溶剂热法制备出形貌均一的、光化学稳定的、超薄WO3二维纳米片阵列。此外,通过选择不同的溶剂类型,得到了形貌各异的WO3光电极材料。对材料的光电催化性能而言,WO3二维纳米片阵列在模拟太阳光(AM1.5G)的照射下,展现出卓越的光电流响应1.37 mA·cm-2,这高出其他形貌的材料近6~10倍。因此,在合适的溶剂作用下,采用溶剂热法制备二维阵列材料为其他材料的合成提供建设性的思路,同样促进了材料在光电催化领域的广泛应用。

Photoelectrocatalytic water splitting is one of the most effective methods to solve the energy crisis and environment problem.In this paper,uniform and photochemically stable WO3 nanoplate arrays were synthesized by a simple solvothermal technique.In addition,the WO3 photoanodes with different morphology were obtained by changing the solvent.For the photoelectrocatalytic performance,WO3 nanoplate arrays exhibit a remarkable photocurrent of 1.37 mA·cm-2 under AM 1.5 G illumination,which is higher than other materials with different morphology nearly 6~10 times.Therefore,our solvothermal film growth technique offers an exciting opportunity for growth of two-dimensional nanoplate arrays with practical application in photoelectrochemical energy conversion.