N-Doped porous carbons obtained from chitosan and spent coffee as electrocatalysts with tuneable oxygen reduction reaction selectivity for H<sub>2</sub>O<sub>2</sub> generation.

RSC Adv · 2023 · PMC10372475 · PMID 37520102

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an increasing trendno p-value reported

In good agreement with the XPS data, the normalized intensity of the N + mass peak shows an increasing trend with increasing chitosan content of the precursor material.

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