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. 2022 Feb 16;12:2604. doi: 10.1038/s41598-022-06608-7

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OER intermediates on Au₂–Ag₂/TiO₂ semiconductor surface with Ti active site marked blue in (a) OH*-Ti, (b) O*-Ti, (c) OOH*-Ti and with gold as active site shown in (d) OH*-Au, (e) O*-Au, and (f) OOH*-Au.