scholarly journals Decoupling the roles of carbon and metal oxides on the electrocatalytic reduction of oxygen on La1−xSrxCoO3−δ perovskite composite electrodes

2019 ◽  
Vol 21 (6) ◽  
pp. 3327-3338 ◽  
Author(s):  
J. Tyler Mefford ◽  
Aleksandr A. Kurilovich ◽  
Jennette Saunders ◽  
William G. Hardin ◽  
Artem M. Abakumov ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Perovskite Oxides ◽  
Reduction Reaction ◽  
Composite Electrodes ◽  
Electrocatalytic Reduction ◽  
Microkinetic Modeling ◽  
Carbon Additives

Experiment and microkinetic modeling decouple the synergistic roles of La1−xSrxCoO3−δ perovskite oxides and carbon additives during the oxygen reduction reaction.

Ti/Pt−Pd‐Based Nanocomposite: Effects of Metal Oxides on the Oxygen Reduction Reaction

2020 ◽  
Vol 7 (7) ◽  
pp. 1610-1618 ◽  
Author(s):  
Guilherme V. Fortunato ◽  
Eduardo S. F. Cardoso ◽  
Bibiana K. Martini ◽  
Gilberto Maia
Keyword(s):  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Reduction Reaction

Synergetic nanoporous Mn–Ru oxides as efficient electrocatalysts for the oxygen reduction reaction

2017 ◽  
Vol 41 (16) ◽  
pp. 8196-8202 ◽  
Author(s):  
Mohamed B. Zakaria ◽  
Toyohiro Chikyow
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mixed Oxides ◽  
Reduction Reaction ◽  
Electrocatalytic Reduction ◽  
Similar Morphology

Nanoporous Mn–Ru mixed oxides were derived from Mn–Ru CP nanocubes with a similar morphology through annealing in air at 400 degree for effecient electrocatalytic reduction of oxygen.

Palladium copper nanosponges for electrocatalytic reduction of oxygen and glucose detection

2015 ◽  
Vol 3 (18) ◽  
pp. 9675-9681 ◽  
Author(s):  
Wen-Ping Wu ◽  
Arun Prakash Periasamy ◽  
Guan-Lin Lin ◽  
Zih-Yu Shih ◽  
Huan-Tsung Chang
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
High Catalytic Activity ◽  
Glucose Detection ◽  
Cathode Catalyst ◽  
Electrocatalytic Reduction ◽  
One Pot

One-pot synthesized PdCu nanosponges (NSs) are separately used as a cathode catalyst for the oxygen reduction reaction in alkaline media and for enzymeless detection of glucose with high catalytic activity, stability, and durability.

Tuning the Fe-N4 sites by introducing Bi-O bond in Fe-N-C system for promoting oxygen reduction reaction

2021 ◽  
Author(s):  
Huihui Jin ◽  
Jiawei Zhu ◽  
Ruohan Yu ◽  
Wenqiang Li ◽  
Pengxia Ji ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Noble Metals ◽  
Perovskite Oxides ◽  
Reduction Reaction ◽  
Reduction Activity

Elemental Bi is effective in optimizing the electrocatalytic activity of perovskite oxides and noble metals, but has never been used to adjust the oxygen reduction activity of Fe/N-C catalysts. Here,...

scholarly journals Binary and Ternary 3D Nanobundles Metal Oxides Functionalized Carbon Xerogels as Electrocatalysts toward Oxygen Reduction Reaction

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3531 ◽  
Author(s):  
Abdalla Abdelwahab ◽  
Francisco Carrasco-Marín ◽  
Agustín F. Pérez-Cadenas
Keyword(s):  
Oxygen Reduction Reaction ◽  
Metal Oxides ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Basic Medium ◽  
Equivalent Series Resistance ◽  
Mesopore Volume ◽  
Carbon Xerogel ◽  
Carbon Xerogels ◽  
High Electronic Conductivity

A series of carbon xerogels doped with cobalt, nickel, and iron have been prepared through the sol–gel method. The doped carbon xerogels were further functionalized with binary and ternary transition metal oxides containing Co, Ni, and Zn oxides by the hydrothermal method. A development in the mesopore volume is achieved for functionalized carbon xerogel doped with iron. However, in the functionalization of carbon xerogel with ternary metal oxides, a reduction in pore diameter and mesopore volume is found. In addition, all functionalized metal oxides/carbon are in the form of 3D nanobundles with different lengths and widths. The prepared samples have been tested as electrocatalysts for oxygen reduction reaction (ORR) in basic medium. All composites showed excellent oxygen reduction reaction activity; the low equivalent series resistance of the Zn–Ni–Co/Co–CX composite was especially remarkable, indicating high electronic conductivity. It has been established that the role of Zn in this type of metal oxides nanobundles-based ORR catalyst is not only positive, but its effect could be enhanced by the presence of Ni.

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