Li Shilin, Bychkov Konstantin L, Butenko Denys S, Terebilenko Kateryna V, Zhu Yukun, Han Wei, Baumer Vyacheslav N, Slobodyanik Mykola S, Ji Hong, Klyui N I
Sino-Russian International Joint Laboratory for Clean Energy and Energy Conversion Technology, College of Physics, Jilin University, Changchun 130012, P. R. China.
Dalton Trans. 2020 Feb 21;49(7):2345-2355. doi: 10.1039/c9dt04417e. Epub 2020 Feb 5.
The photoelectrochemical properties of scheelite-related MBiVMoO (M = Ca, Sr, x = 0.1 to 0.9) solid solutions deposited on conductive glass (coated with SnO, F-doped) have been investigated as photoanodes in photoelectrochemical (PEC) water splitting. The variation of the final annealing temperature during the preparation of the conduction electrodes as well as the value of substitution x have been shown to affect the PEC performance. The micropowders of MBiVMoO (M = Ca, Sr, x = 0.1 to 0.9) samples were first fabricated vi a solid-state method; they were characterised by SEM microscopy and powder and single crystal X-ray diffraction, and the band gap values were estimated using diffusive reflectance data. The value of substitution x = 0.1 in the cases of samples containing calcium and strontium affords the highest PEC performance reported for the whole range of substitution. These results demonstrate a promising approach for the beneficial utilization of BiVO-substituted scheelite-related solid solutions in photo-electrochemical cells towards efficient and inexpensive photoanodes.
已对沉积在导电玻璃（涂有氟掺杂的SnO）上的白钨矿相关MBiVMoO（M = Ca、Sr，x = 0.1至0.9）固溶体的光电化学性质进行了研究，将其作为光电化学（PEC）水分解中的光阳极。结果表明，制备导电电极过程中最终退火温度的变化以及取代值x会影响PEC性能。首先通过固态法制备了MBiVMoO（M = Ca、Sr，x = 0.1至0.9）样品的微粉；通过扫描电子显微镜（SEM）以及粉末和单晶X射线衍射对其进行了表征，并使用漫反射数据估算了带隙值。在含钙和锶的样品中，取代值x = 0.1时，在整个取代范围内具有最高的PEC性能。这些结果表明，在光电化学电池中，利用BiVO取代的白钨矿相关固溶体制备高效且廉价的光阳极是一种很有前景的方法。
