Transition Metal Oxides for the Oxygen Reduction Reaction: Influence of the Oxidation States of the Metal and its Position on the Periodic Table

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Rou Jun TohMartin Pumera

Abstract

Electrocatalysts have been developed to meet the needs and requirements of renewable energy applications. Metal oxides have been well explored and are promising for this purpose, however, many reports focus on only one or a few metal oxides at once. Herein, thirty metal oxides, which were either commercially available or synthesized by a simple and scalable method, were screened for comparison with regards to their electrocatalytic activity towards the oxygen reduction reaction (ORR). We show that although manganese, iron, cobalt, and nickel oxides generally displayed the ability to enhance the kinetics of oxygen reduction under alkaline conditions compared with bare glassy carbon, there is no significant correlation between the position of a metal on the periodic table and the electrocatalytic performance of its respective metal oxides. Moreover, it was also observed that mixed valent (+2, +3) oxides performed the poorest, compared with their respective pure metal oxides. These findings may be of paramount importance in the field of renewable energy.

References

Feb 8, 2008·Nature·M Armand, J-M Tarascon
Feb 4, 2010·ChemSusChem·Dang Sheng SuRobert Schlögl
Apr 13, 2010·Inorganic Chemistry·Andrew A Gewirth, Matthew S Thorum
Oct 28, 2011·Angewandte Chemie·Dang Sheng Su, Gongquan Sun
Jul 6, 2012·Nanoscale·Marcella GiovanniMartin Pumera
Sep 11, 2012·Journal of the American Chemical Society·Yongye LiangHongjie Dai
Mar 16, 2013·Chemistry, an Asian Journal·Rou Jun TohMartin Pumera
Jul 3, 2013·Accounts of Chemical Research·Gang Wu, Piotr Zelenay

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Citations

Jun 13, 2018·Nanoscale·Vlastimil MazánekMartin Pumera
Sep 8, 2018·Nanotechnology·Mohammad Fathi ToviniEda Yılmaz
Jan 3, 2019·Chemistry : a European Journal·Ludmila KrejčováMartin Pumera
Sep 29, 2019·ACS Applied Materials & Interfaces·Haitao XuHua-Jun Qiu

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