Bifunctional OER/ORR catalytic activity in the tetrahedral YBaCo4O7.3 oxide

2019 ◽  
Vol 7 (1) ◽  
pp. 330-341 ◽  
Author(s):  
Maria A. Kirsanova ◽  
Valery D. Okatenko ◽  
Dmitry A. Aksyonov ◽  
Robin P. Forslund ◽  
J. Tyler Mefford ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Alkaline Media ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Tetrahedral YBaCo4O7.3 demonstrates bifunctional catalytic activity for the oxygen evolution and oxygen reduction reactions in alkaline media.

MOF-derived Fe,Co@N–C bifunctional oxygen electrocatalysts for Zn–air batteries

2020 ◽  
Vol 8 (18) ◽  
pp. 9355-9363 ◽  
Author(s):  
Xinde Duan ◽  
Shuangshuang Ren ◽  
Na Pan ◽  
Mingdao Zhang ◽  
Hegen Zheng
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
High Catalytic Activity ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Bifunctional Electrocatalysts

MOF-derived Fe,Co@N-C bifunctional electrocatalysts for oxygen reduction reactions and oxygen evolution reactions have been prepared via a scalable method, exhibiting ultra-high catalytic activity and promising performance in Zn–air batteries.

Electrospun CoFe2O4 nanofibers as bifunctional nanocatalysts for the oxygen evolution and oxygen reduction reactions in alkaline media

MRS Advances ◽  
2020 ◽  
Vol 5 (57-58) ◽  
pp. 2929-2937
Author(s):  
P.C. Cintron-Nuñez ◽  
B. Escobar-Morales ◽  
J. Escorcia-Garcia ◽  
F.J. Rodríguez-Varela ◽  
I.L. Alonso-Lemus
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Average Diameter ◽  
Structural Features ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Oxygen Reduction Reactions ◽  
Electrospinning Method ◽  
Different Temperatures

AbstractNon-noble metal bifunctional nanocatalysts based on CoFe2O4/C were synthetized by the electrospinning method and evaluated for the Oxygen Evolution Reaction (OER) and the Oxygen Reduction Reaction (ORR). The effect of annealing at different temperatures (T=300, 600 and 900°C) on their morphological and structural features was characterized by XRD, EDS, Raman, FESEM, HRTEM and XPS. The nanofibers annealed at 300 °C (CoFe2O4-300) showed a cubic spinel structure and an average diameter of 42 nm. The CoFe2O4-300/C nanocatalyst demonstrated the highest catalytic activity towards the OER, outperforming the benchmark commercial 20 wt. % Pt/C. Meanwhile all CoFe2O4-based nanocatalysts showed fair catalytic activity for the ORR (Eonset ≈ 0.801 V/RHE, n≈ 3.56, %HO2- ≈ 21-39). In addition, the CoFe2O4/C nanocatalysts demonstrated a higher electrochemical stability than Pt/C for both the ORR and the OER.

Rational prediction of multifunctional bilayer single atom catalysts for the hydrogen evolution, oxygen evolution and oxygen reduction reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20413-20424
Author(s):  
Riming Hu ◽  
Yongcheng Li ◽  
Fuhe Wang ◽  
Jiaxiang Shang
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Single Atom ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Bilayer single atom catalysts can serve as promising multifunctional electrocatalysts for the HER, ORR, and OER.

Highly Active Pd-CeO2-NR/C (Cerium Oxide Nanorods) Bifunctional Nanocatalysts with Remarkable Stability for the Ethanol Oxidation and Oxygen Reduction Reactions in Alkaline Media

2019 ◽  
Vol 92 (8) ◽  
pp. 671-678 ◽  
Author(s):  
P.C. Meléndez-González ◽  
Maria Esther Sánchez-Castro ◽  
Ivonne Liliana Alonso-Lemus ◽  
R. Pérez-Hernández ◽  
Beatriz Escobar-Morales ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Cerium Oxide ◽  
Ethanol Oxidation ◽  
Alkaline Media ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Highly Active ◽  
Oxide Nanorods

Active MnOxElectrocatalysts Prepared by Atomic Layer Deposition for Oxygen Evolution and Oxygen Reduction Reactions

2012 ◽  
Vol 2 (10) ◽  
pp. 1269-1277 ◽  
Author(s):  
Katie L. Pickrahn ◽  
Sang Wook Park ◽  
Yelena Gorlin ◽  
Han-Bo-Ram Lee ◽  
Thomas F. Jaramillo ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Atomic Layer ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Layer Deposition

Size-specific catalytic activity of platinum clusters enhances oxygen reduction reactions

2009 ◽  
Vol 1 (5) ◽  
pp. 397-402 ◽  
Author(s):  
Kimihisa Yamamoto ◽  
Takane Imaoka ◽  
Wang-Jae Chun ◽  
Osamu Enoki ◽  
Hideaki Katoh ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Specific Catalytic Activity ◽  
Platinum Clusters
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