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您的检索式：作者名="Markus Bierling"
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| 1 | Dissolution of WO_(3) modified with IrO_(x) overlayers during photoelectrochemical water splitting显示文摘WO_(3),an abundant transition metal semiconductor,is one of the most discussed materials to be used as a photoanode in photoelectrochemical water-splitting devices.The photoelectrochemical properties,such as photoactivity and selectivity of WO_(3) in different electrolytes,are already well understood.However,the understanding of stability,one of the most important properties for utilization in a commercial device,is still in the early stages.In this work,a photoelectrochemical scanning flow cell coupled to an inductively coupled plasma mass spectrometer is applied to determine the influence of co-catalyst overlayers on photoanode stability.Spray-coatedWO_(3) photoanodes are used as a model system.Iridium is applied to the electrodes by atomic layer deposition in controlled layer thickness,as determined by ellipsometry and x-ray photoelectron spectroscopy.Photoactivity of the iridium-modified WO_(3) photoanodes decreases with increasing iridium layer thickness.Partial blocking of the WO_(3) surface by iridium is proposed as the main cause of the decreased photoelectrochemical performance.On the other hand,the stability of WO_(3) is notably increased even in the presence of the thinnest investigated iridium overlayer.Based on our findings,we provide a set of strategies to synthesize nanocomposite photoelectrodes simultaneously possessing high photoelectrochemical activity and photostability. | Ken J.Jenewein Julius Knopel AndréHofer Attila Kormányos Britta Mayerhofer Florian D.Speck Markus Bierling Simon Thiele Julien Bachmann Serhiy Cherevko | 2023 | SusMat2023，3，1： | 0 |
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