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Patel PP, Datta MK, Velikokhatnyi OI, et al. Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts. Sci Rep. 2016;6:28367doi: 10.1038/srep28367.
Patel, P. P., Datta, M. K., Velikokhatnyi, O. I., Kuruba, R., Damodaran, K., Jampani, P., Gattu, B., Shanthi, P. M., Damle, S. S., & Kumta, P. N. (2016). Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts. Scientific reports, 628367. https://doi.org/10.1038/srep28367
Patel, Prasad Prakash, et al. "Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts." Scientific reports vol. 6 (2016): 28367. doi: https://doi.org/10.1038/srep28367
Patel PP, Datta MK, Velikokhatnyi OI, Kuruba R, Damodaran K, Jampani P, Gattu B, Shanthi PM, Damle SS, Kumta PN. Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts. Sci Rep. 2016 Jul 06;6:28367. doi: 10.1038/srep28367. PMID: 27380719; PMCID: PMC4933978.
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Sci Rep. 2016 Jul 06;6:28367. doi: 10.1038/srep28367.

Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts.

Scientific reports

Prasad Prakash Patel, Moni Kanchan Datta, Oleg I Velikokhatnyi, Ramalinga Kuruba, Krishnan Damodaran, Prashanth Jampani, Bharat Gattu, Pavithra Murugavel Shanthi, Sameer S Damle, Prashant N Kumta

Affiliations

  1. Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.
  2. Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.
  3. Center for Complex Engineered Multifunctional Materials, University of Pittsburgh, PA 15261, USA.
  4. Department of Chemistry, University of Pittsburgh, PA 15260, USA.
  5. Mechanical Engineering and Materials Science, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.
  6. School of Dental Medicine, University of Pittsburgh, PA 15217, USA.

PMID: 27380719 PMCID: PMC4933978 DOI: 10.1038/srep28367

Abstract

Identification of low cost, highly active, durable completely noble metal-free electro-catalyst for oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, oxygen evolution reaction (OER) in PEM based water electrolysis and metal air batteries remains one of the major unfulfilled scientific and technological challenges of PEM based acid mediated electro-catalysts. In contrast, several non-noble metals based electro-catalysts have been identified for alkaline and neutral medium water electrolysis and fuel cells. Herein we report for the very first time, F doped Cu1.5Mn1.5O4, identified by exploiting theoretical first principles calculations for ORR and OER in PEM based systems. The identified novel noble metal-free electro-catalyst showed similar onset potential (1.43 V for OER and 1 V for ORR vs RHE) to that of IrO2 and Pt/C, respectively. The system also displayed excellent electrochemical activity comparable to IrO2 for OER and Pt/C for ORR, respectively, along with remarkable long term stability for 6000 cycles in acidic media validating theory, while also displaying superior methanol tolerance and yielding recommended power densities in full cell configurations.

References

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