scholarly journals The joint effect of electrical conductivity and surface oxygen functionalities of carbon supports on the oxygen reduction reaction studied over bare supports and Mn–Co spinel/carbon catalysts in alkaline media

2021 ◽  
Author(s):  
Aldona Kostuch ◽  
Sebastian Jarczewski ◽  
Marcin K. Surówka ◽  
Piotr Kuśtrowski ◽  
Zbigniew Sojka ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Reduction Reaction ◽  
Joint Effect ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Surface Oxygen ◽  
Carbon Supports ◽  
Trade Off ◽  
Oxygen Groups ◽  
Carbon Catalysts

Mn–Co spinel/carbon electrocatalyst performance exhibits a volcano-type shape which results from a trade-off between electrical conductivity and the amount of oxygen groups.

Morphology and dispersion of nanostructured manganese–cobalt spinel on various carbon supports: the effect on the oxygen reduction reaction in alkaline media

2018 ◽  
Vol 8 (2) ◽  
pp. 642-655 ◽  
Author(s):  
Aldona Kostuch ◽  
Joanna Gryboś ◽  
Paulina Indyka ◽  
Luigi Osmieri ◽  
Stefania Specchia ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Nanoparticle Dispersion ◽  
Carbon Supports ◽  
Cobalt Spinel

Carbon carriers play a triple role in the ORR, determining nanoparticle dispersion, faceting, and reaction mechanism.

scholarly journals Effect of catalyst carbon supports on the oxygen reduction reaction in alkaline media: a comparative study

RSC Advances ◽  
2016 ◽  
Vol 6 (97) ◽  
pp. 94669-94681 ◽  
Author(s):  
Miguel A. Molina-García ◽  
Neil V. Rees
Keyword(s):  
Comparative Study ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Carbon Supports ◽  
Integrated Study

Four common catalyst carbon supports are quantitatively compared in an integrated study towards the oxygen reduction reaction in alkaline media.

scholarly journals Superior FexN electrocatalyst derived from 1,1′-diacetylferrocene for oxygen reduction reaction in alkaline and acidic media

2020 ◽  
Vol 9 (1) ◽  
pp. 843-852
Author(s):  
Hunan Jiang ◽  
Jinyang Li ◽  
Mengni Liang ◽  
Hanpeng Deng ◽  
Zuowan Zhou
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Current Density ◽  
Active Sites ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Acidic Media ◽  
Onset Potential ◽  
Acidic And Alkaline Media ◽  
The Stability

AbstractAlthough Fe–N/C catalysts have received increasing attention in recent years for oxygen reduction reaction (ORR), it is still challenging to precisely control the active sites during the preparation. Herein, we report FexN@RGO catalysts with the size of 2–6 nm derived from the pyrolysis of graphene oxide and 1,1′-diacetylferrocene as C and Fe precursors under the NH3/Ar atmosphere as N source. The 1,1′-diacetylferrocene transforms to Fe3O4 at 600°C and transforms to Fe3N and Fe2N at 700°C and 800°C, respectively. The as-prepared FexN@RGO catalysts exhibited superior electrocatalytic activities in acidic and alkaline media compared with the commercial 10% Pt/C, in terms of electrochemical surface area, onset potential, half-wave potential, number of electrons transferred, kinetic current density, and exchange current density. In addition, the stability of FGN-8 also outperformed commercial 10% Pt/C after 10000 cycles, which demonstrates the as-prepared FexN@RGO as durable and active ORR catalysts in acidic media.

Mesoporous TiN as a Noncarbon Support of Ag-Rich PtAg Nanoalloy Catalysts for Oxygen Reduction Reaction in Alkaline Media

ChemSusChem ◽  
2014 ◽  
Vol 7 (12) ◽  
pp. 3356-3361 ◽  
Author(s):  
Zhiming Cui ◽  
Minghui Yang ◽  
Hao Chen ◽  
Mengtian Zhao ◽  
Francis J. DiSalvo
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media

Highly active bimetallic CuFe–N–C electrocatalysts for oxygen reduction reaction in alkaline media

2019 ◽  
Vol 71 ◽  
pp. 234-241 ◽  
Author(s):  
Yun Sik Kang ◽  
Yoonhye Heo ◽  
Jae Young Jung ◽  
Yeonsun Sohn ◽  
Soo-Hyoung Lee ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Highly Active

Au Nanowires@Pd-Polyethylenimine Nanohybrids as Highly Active and Methanol-Tolerant Electrocatalysts toward Oxygen Reduction Reaction in Alkaline Media

ACS Catalysis ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 11287-11295 ◽  
Author(s):  
Qi Xue ◽  
Juan Bai ◽  
Congcong Han ◽  
Pei Chen ◽  
Jia-Xing Jiang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Highly Active ◽  
Methanol Tolerant ◽  
Au Nanowires

Diagnosis of the measurement inconsistencies of carbon-based electrocatalysts for the oxygen reduction reaction in alkaline media

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1571-1580 ◽  
Author(s):  
Dongyoon Shin ◽  
Beomgyun Jeong ◽  
Myounghoon Choun ◽  
Joey D. Ocon ◽  
Jaeyoung Lee
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Testing Methodology ◽  
Orr Activity ◽  
Carbon Based

An optimal catalyst testing methodology that could allow precise benchmarking to obtain standardized ORR activity is put forward.

Sign in / Sign up

Export Citation Format

Share Document