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Electrodeposited p-type Co3O4 with high photoelectrochemical performance in aqueous medium

机译：在水介质中具有高光电化学性能的电沉积p型Co3O4

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p-Type Co3O4 photocathodes with different amounts of CuO, were synthesized on fluorine doped tin oxide (FTO) via electrodeposition from a chloride bath containing suspended starch particles. All of the fabricated samples were photoresponsive toward water splitting in 0.5 M Na2SO4 under simulated sun-light. The PEC performance was evaluated using LSPV, chronoamperometry, and EIS techniques. The samples fabricated via the electrodeposition/anodizing/annealing process showed greater photocurrent response compared to the electrodeposition/annealing process. Among all the samples, the sample with an atomic composition% of Co: 24.9, Cu: 25.0 and O: 50.1 showed an optimum photocurrent response (similar to 6.5 mA cm(-2) vs. SCE at -0.3 V). The structure, morphology/composition and optical response were characterized by XRD, FESEM/EDX and UV-Vis techniques, respectively.
机译：在含氟的氧化锡（FTO）上通过电沉积法从含有悬浮淀粉颗粒的氯化物浴中合成了具有不同CuO含量的p型Co3O4光电阴极。在模拟的阳光下，所有制作的样品对0.5 M Na2SO4中的水分解均具有光响应性。使用LSPV，计时电流法和EIS技术评估PEC性能。与电沉积/退火过程相比，通过电沉积/阳极氧化/退火过程制备的样品显示出更大的光电流响应。在所有样品中，具有Co：24.9，Cu：25.0和O：50.1的原子组成％的样品显示出最佳的光电流响应（类似于6.5 mA cm（-2）相对于-0.3 V的SCE）。分别用XRD，FESEM / EDX和UV-Vis技术表征了结构，形态/组成和光学响应。

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