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首页> 外文期刊>International Journal of Electrochemical Science >Effects of Platinum Doping on the Photoelectrochemical Properties of Fe2O3 Electrodes
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Effects of Platinum Doping on the Photoelectrochemical Properties of Fe2O3 Electrodes

机译：铂掺杂对Fe 2 O 3 电极光电化学性能的影响

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The effects of platinum (Pt) doping on the structure and photoelectrochemical properties of Fe2O3electrodes have been investigated. The Pt-doped Fe2O3 electrodes were prepared by sol-gel and spincoated on fluorine-tin-oxide coated glass substrate. Influences of dopant concentration on materialproperties and photoelectrochemical characteristics were examined. Results of XRD and XPS showedthat -Fe o2O3 can be obtained using 500 C annealing in air. The band gaps of the samples obtainedfrom reflectance and transmittance spectra measurement were found to vary from 1.98 to 2.03 eV. Theflat band potentials of the samples were obtained from the Mott-Schottky analysis and found to be inthe range of -0.135 V to -0.6 V. The maximum photocurrent density of undoped and 0.1 at.% Pt-dopedFe2O3 electrodes was 0.5 mA/cm 2 and 0.7 mA/cm2 under a 300 W Xe lamp system, respectively. Thegood photoelectrochemical results of the Pt-doped Fe2O3 electrode warrant further investigation forbroader applications in the future.
机译：研究了铂（Pt）掺杂对Fe2O3电极结构和光电化学性能的影响。通过溶胶-凝胶法制备掺Pt的Fe2O3电极，并旋涂在氟氧化锡涂覆的玻璃基板上。研究了掺杂剂浓度对材料性能和光电化学特性的影响。 XRD和XPS结果表明，在空气中进行500 C退火可获得-Fe o2O3。发现通过反射率和透射光谱测量获得的样品的带隙在1.98至2.03eV之间变化。通过Mott-Schottky分析获得样品的平坦带电势，发现其在-0.135 V至-0.6 V范围内。未掺杂和0.1 at。％Pt掺杂的Fe2O3电极的最大光电流密度为0.5 mA / cm 2 300 W Xe灯系统分别为0.7 mA / cm2和0.7 mA / cm2。掺Pt的Fe2O3电极的良好光电化学结果值得进一步研究，以供将来更广泛的应用。

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