Enhancing bifunctional electrocatalysts of hollow Co3O4 nanorods with oxygen vacancies towards ORR and OER for Li–O2 batteries

Development of α‐MnO2 Nanowire with Ni‐ and (Ni, Co)‐Cation Doping as an Efficient Bifunctional Oxygen Evolution and Oxygen Reduction Reaction Catalyst

“…To address these issues, various alternative catalysts have been studied for improving OER/ORR activity such as transition metals, metal oxides, [18][19][20] sulfides [21] and carbides. [22] Among the various catalysts reported to date, manganese oxide (MnO 2 ) is regarded as a cost-effective, outstanding bifunctional catalyst in fuel cells.…”

Transition metal oxides with perovskite and spinel structures for electrochemical energy production applications

“…Hybrid materials formed by carbon materials and Co 3 O 4 spinel showed a promising catalytic behavior for both ORR (Liang et al, 2011;Wang et al, 2013;Liu et al, 2020b) and OER (Xu et al, 2016;Yao et al, 2016;Leng et al, 2017). For this reason, diverse studies focused on the development of bifunctional catalysts with optimized performance for both reactions (Wang et al, 2017b;Zhao et al, 2017b;Jia et al, 2017Jia et al, , 2019Su et al, 2019;Guo et al, 2019;Tomon et al, 2021). N-doped carbon materials were used in most of these works (Wang et al, 2017b;Jia et al, 2017Jia et al, , 2019Guo et al, 2019) because they offer specific active sites that improve the ORR avoiding the agglomeration of metal oxide nanoparticles.…”

Recent Advances in Rechargeable Li–CO2 Batteries

“…Cobalt oxide-based materials, such as Co 3 O 4 -CNTs, Co 3 O 4 nanosheets, Co 3 O 4 nanoflowers, and Co 3 O 4 nanorods, have been used as efficient catalysts in Li–O 2 batteries. − Considering that the Co 2+ in Co 3 O 4 is poisonous and hazardous, some environmentally friendly metal ions (M = Fe, Zn, Mn, and Ni) were used to replace it. Liu et al reported a type of porous ZnCo 2 O 4 nanorodlike structures with multiwalled CNTs (ZnCo 2 O 4 @CNT) as a cathode material.…”