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Elsevier, Electrochemistry Communications, (34), p. 113-116

DOI: 10.1016/j.elecom.2013.05.032

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Trace metal residues promote the activity of supposedly metal-free nitrogen-modified carbon catalysts for the oxygen reduction reaction

Journal article published in 2013 by Justus Masa, Anqi Zhao, Wei Xia, Zhenyu Sun ORCID, Bastian Mei ORCID, Martin Muhler, Wolfgang Schuhmann
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This paper is available in a repository.

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Abstract

We show in this study that the presence of trace metal residues in some supposedly metal-free catalysts for oxygen reduction, at concentrations which are difficult to detect using conventional methods such as XPS and EDX, can profoundly promote the ORR activity of the catalysts.