The apparent surface free energy of rare earth oxides is governed by hydrocarbon adsorption.

iScience · 2022 · PMC8752908 · PMID 35036875

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an increasing trendno p-value reported

Furthermore, we observed an increasing trend of C-O bonding composition in the O1s spectrum.

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a decreasing trendno p-value reported

Negative ion analysis showed a similar trend with the positive ion results showing that H and OH negative ions detected, normalized by O negative, were in a decreasing trend as the contact angle and surface coverage decreased.

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