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Enhanced photoelectrochemical water oxidation of a BiVO4/tetra(amino)phthalocyanine composite photoanode
Journal of Porphyrins and Phthalocyanines ( IF 1.5 ) Pub Date : 2023-07-19 , DOI: 10.1142/s1088424623501067
M. Shire Sudi 1 , Long Zhao 1 , Yuqin Dou 1 , Xin Yang 1 , Qi Wang 1 , Aijian Wang 1 , Weihua Zhu 1
Affiliation  

We present a method for synthesizing a BiVO4 composite photoanode using electrodeposition on FTO glass and show how the incorporation of tetra(amino)phthalocyanine (TAPC) improves its photoelectrochemical water oxidation properties. The conducted photocatalytic tests show that the incorporation of TAPC improved photocurrent generation, electron-hole generation, and separation as well as the stability of the BiVO4/TAPC composite material. The current densities of the pristine BiVO4 and BiVO4/TAPC for photoelectrochemical water oxidation under operational conditions at 1.6 V vs. Ag/AgCl were found to be 1.7 and 3.1 mA cm2, respectively, which were estimated to be almost twice that of pristine BiVO4. The improved photoelectrochemical water oxidation performance of the BiVO4/TAPC composite may also be attributed to the enhanced surface area and surface redox reaction. These results demonstrate the potential of TAPC as a promising candidate for improving the performance of BiVO4 photoanodes in various applications.



中文翻译:

BiVO4/四(氨基)酞菁复合光阳极的增强光电化学水氧化

我们提出了一种在 FTO 玻璃上电沉积合成BiVO 4复合光阳极的方法,并展示了四(氨基)酞菁(TAPC)的掺入如何提高其光电化学水氧化性能。进行的光催化测试表明,TAPC的加入改善了光电流的产生、电子空穴的产生和分离以及BiVO 4 /TAPC复合材料的稳定性。原始 BiVO 4和 BiVO 4 /TAPC 在 1.6 V vs. Ag/AgCl 操作条件下用于光电化学水氧化的电流密度分别为 1.7 和 3.1 mA cm-2,估计几乎是原始 BiVO 4的两倍。BiVO 4 /TAPC复合材料的光电化学水氧化性能的改善也可能归因于表面积和表面氧化还原反应的增强。这些结果证明了 TAPC 作为提高 BiVO 4光电阳极在各种应用中的性能的有前途的候选者的潜力。

更新日期:2023-07-19
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