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Fig. 2.
(Color online) XPS spectra of C1s region for carbon felt (a) without pretreatment and (b) with HNO
3
pretreatment. XPS spectra of O1s region for carbon felt (c) without pretreatment and (d) with HNO
3
pretreatment.
New Phys.: Sae Mulli 2023;73:429~436
https://doi.org/10.3938/NPSM.73.429
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New Physics: Sae Mulli
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