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Effect of pH value on the structure of amorphous zirconia precursor under coprecipitation

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Zirconia precursor was obtained by coprecipitation method. This paper explains the formation mechanism of zirconia from the molecular level. The chemical formula of zirconia precursor is determined by mass analysis, the chemical bond composition of zirconia precursor is determined by Raman spectroscopy, and the results of Raman spectroscopy were fitted by Gaussian software. The possible theoretical structure of zirconia precursor in the range of high and low pH values is proposed, and the structures of simulated zirconia precursors were consistent with the results of XRD and Raman spectra. With the continuous improvement of theoretical structure of zirconia precursor, it is expected that the structure of zirconia precursor will be modified at molecular level in the future to obtain ideal zirconia powder.

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Thanks to the following teachers of our school for providing equipment: Zhu Yaming provided Raman spectrometer. Luan Xu provided x-ray diffractometer.

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Correspondence to Zhihui Li.

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The authors have no relevant financial or non-financial interests to disclose. No funding was received for conducting this study. There is no interest or ethical conflict to declare.

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He, Y., Li, Z. & Wu, F. Effect of pH value on the structure of amorphous zirconia precursor under coprecipitation. Chem. Pap. 77, 269–276 (2023).

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