Jiang, KunBack, SeoinAkey, Austin J.Xia, ChuanHu, YongfengLiang, WentaoSchaak, DianeStavitski, EliNørskov, Jens K.Siahrostami, SamiraWang, Haotian2020-02-142020-02-142019Jiang, Kun, Back, Seoin, Akey, Austin J., et al.. "Highly selective oxygen reduction to hydrogen peroxide on transition metal single atom coordination." <i>Nature Communications,</i> 10, (2019) Springer Nature: https://doi.org/10.1038/s41467-019-11992-2.https://hdl.handle.net/1911/108053Shifting electrochemical oxygen reduction towards 2e– pathway to hydrogen peroxide (H2O2), instead of the traditional 4e– to water, becomes increasingly important as a green method for H2O2 generation. Here, through a flexible control of oxygen reduction pathways on different transition metal single atom coordination in carbon nanotube, we discovered Fe-C-O as an efficient H2O2 catalyst, with an unprecedented onset of 0.822 V versus reversible hydrogen electrode in 0.1 M KOH to deliver 0.1 mA cm−2 H2O2 current, and a high H2O2 selectivity of above 95% in both alkaline and neutral pH. A wide range tuning of 2e–/4e– ORR pathways was achieved via different metal centers or neighboring metalloid coordination. Density functional theory calculations indicate that the Fe-C-O motifs, in a sharp contrast to the well-known Fe-C-N for 4e–, are responsible for the H2O2 pathway. This iron single atom catalyst demonstrated an effective water disinfection as a representative application.engThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.Journal articles41467-019-11992-2https://doi.org/10.1038/s41467-019-11992-2