Photoactive Zinc Ferrites Fabricated via Conventional CVD Approach
Photoactive Zinc Ferrites Fabricated via Conventional CVD Approach
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DOI：
10.1021/acssuschemeng.6b02233
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发表时间：
2017-03
影响因子：
8.4
通讯作者：
D. Peeters;Dereje H. Taffa;Marissa M. Kerrigan;A. Ney;N. Jöns;D. Rogalla;Stefan Cwik;H. Becker
中科院分区：
文献类型：
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作者：
D. Peeters;Dereje H. Taffa;Marissa M. Kerrigan;A. Ney;N. Jöns;D. Rogalla;Stefan Cwik;H. Becker
铁酸锌（ZFO，ZnFe 2 O 4）薄膜由于其窄的禁带宽度、良好的磁性和光催化性能，在磁记录介质和光电化学电池等领域有着广泛的应用前景。在此，我们首次报道了通过无溶剂的常规CVD方法制备光活性铁酸锌，并且所得ZFO层显示出作为PEC水分解中的光催化剂的前景。对于大规模应用，化学气相沉积（CVD）路线对于薄膜沉积是有吸引力的;然而，关于CVD工艺之后的ZFO合成知之甚少。通过常规热CVD精确控制多组分材料系统（例如ZFO）的组成的挑战是主要由前体的热性质失配引起的问题。使用两种不同类别的锌和铁前体的方法，在热窗口中紧密匹配，导致形成多晶尖晶石型ZFO。嗯...
Owing to its narrow band gap and promising magnetic and photocatalytic properties, thin films of zinc ferrite (ZFO, ZnFe2O4) are appealing for fabrication of devices in magnetic recording media and photoelectrochemical cells. Herein we report for the first time the fabrication of photactive zinc ferrites via a solvent free, conventional CVD approach, and the resulting ZFO layers show promise as a photocatalyst in PEC water-splitting. For large scale applications, chemical vapor deposition (CVD) routes are appealing for thin film deposition; however, very little is known about ZFO synthesis following CVD processes. The challenge in precisely controlling the composition for multicomponent material systems, such as ZFO, via conventional thermal CVD is an issue that is caused mainly by the mismatch in thermal properties of the precursors. The approach of using two different classes of precursors for zinc and iron with a close match in thermal windows led to the formation of polycrystalline spinel type ZFO. Un...