Well-defined Fe, Fe3C, and Fe2O3 heterostructures on carbon black: a synergistic catalyst for oxygen reduction reaction

2018 ◽  
Vol 8 (19) ◽  
pp. 4900-4906 ◽  
Author(s):  
Wen Feng ◽  
Min Liu ◽  
Jingjun Liu ◽  
Ye Song ◽  
Feng Wang
Keyword(s):  
Transition Metal ◽  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Building Blocks ◽  
Reduction Reaction

Constructing Fe-based composites with a smart heterostructure, by using metallic Fe, Fe3C, Fe2O3 as building blocks, may open a door to rationally designing high-active and low-cost transition metal-based catalysts for the oxygen reduction reaction.

scholarly journals Non-precious Melamine/Chitosan Composites for the Oxygen Reduction Reaction: Effect of the Transition Metal

2020 ◽  
Vol 7 ◽  
Author(s):  
B. Aghabarari ◽  
M. V. Martínez-Huerta ◽  
M. C. Capel-Sánchez ◽  
M. J. Lázaro
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Photoelectron Spectroscopy ◽  
Low Cost ◽  
Reduction Reaction ◽  
X Ray ◽  
Transmission Electron ◽  
Electrode Cell ◽  
C And N

The development of active and low-cost electrocatalysts for the oxygen reduction reaction (ORR) is crucial for the sustainable commercialization of fuel cell technologies. In this study, we have synthetized Me/Mo2C (Me = Fe, Co, Cu)-based composites embedded in N- and P-dual doped carbon by means of inexpensive industrial materials, such as melamine and chitosan, as C and N sources, and the heteropolyacid H3PMo12O40 as P and Mo precursor. The effect of the transition metal (Fe, Co, and Cu) on the ORR in alkaline medium has been investigated. The physicochemical properties of the electrocatalysts were performed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and transmission electron microscopy (TEM). Activity towards ORR was carried out in a three-electrode cell using a ring-disk electrode in 0.1M NaOH. The results obtained clearly show the important role played by each transition metal (Fe, Co, and Cu) in the electrochemical activity. Among them, Fe gives rise to the best performing composite in carrying out the oxygen reduction reaction. The formation Fe3C/Mo2C species embedded in N- and P-dual doped carbon seems to be the determining role in the increase of the ORR performance.

Systematic study of transition-metal (Fe, Co, Ni, Cu) phthalocyanines as electrocatalysts for oxygen reduction and their evaluation by DFT

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 67049-67056 ◽  
Author(s):  
Zhengping Zhang ◽  
Shaoxuan Yang ◽  
Meiling Dou ◽  
Haijing Liu ◽  
Lin Gu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Systematic Study ◽  
Self Assembly ◽  
Reduction Reaction ◽  
Graphitized Carbon Black ◽  
Metal Phthalocyanines ◽  
Graphitized Carbon

A facile approach is reported to prepare a series of transition-metal phthalocyanines supported on graphitized carbon black (TMPc/GCB, TM: Fe, Co, Ni and Cu) as oxygen reduction reaction electrocatalysts,viaπ–π interaction self-assembly.

scholarly journals Iron, Nitrogen Co‐Doped Carbon Spheres as Low Cost, Scalable Electrocatalysts for the Oxygen Reduction Reaction

2021 ◽  
pp. 2102974
Author(s):  
Jingyu Feng ◽  
Rongsheng Cai ◽  
Emanuele Magliocca ◽  
Hui Luo ◽  
Luke Higgins ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Low Cost ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Co Doped

scholarly journals Probing the activity of transition metal M and heteroatom N4 co-doped in vacancy fullerene (M–N4–C64, M = Fe, Co, and Ni) towards the oxygen reduction reaction by density functional theory

RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 3174-3182
Author(s):  
Siwei Yang ◽  
Chaoyu Zhao ◽  
Ruxin Qu ◽  
Yaxuan Cheng ◽  
Huiling Liu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Density Functional ◽  
Reduction Reaction ◽  
Functional Theory ◽  
Co Doped

In this study, a novel type oxygen reduction reaction (ORR) electrocatalyst is explored using density functional theory (DFT); the catalyst consists of transition metal M and heteroatom N4 co-doped in vacancy fullerene (M–N4–C64, M = Fe, Co, and Ni).

Nitrogen/sulfur dual-doped reduced graphene oxide supported CuFeS2 as an efficient electrocatalyst for the oxygen reduction reaction

2018 ◽  
Vol 42 (3) ◽  
pp. 2081-2088 ◽  
Author(s):  
Man Zhang ◽  
Wei Hong ◽  
Ruinan Xue ◽  
Lingzhi Li ◽  
Guanbo Huang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Low Cost ◽  
Reduction Reaction ◽  
Reduced Graphene

At present, low-cost and efficient electrocatalysts for accelerating the oxygen reduction reaction in fuel cells are highly desired.

scholarly journals Highly efficient electrocatalysts with CoO/CoFe2O4 composites embedded within N-doped porous carbon materials prepared by hard-template method for oxygen reduction reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56375-56381 ◽  
Author(s):  
Xinxin Jin ◽  
Yu Jiang ◽  
Qi Hu ◽  
Shaohua Zhang ◽  
Qike Jiang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Alkaline Solution ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Low Cost ◽  
Reduction Reaction ◽  
Template Method ◽  
Hard Template ◽  
Hard Template Method

Low-cost dual transition metal (Fe and Co) based non-noble metal electrocatalysts (NNMEs) with large surface area and porous structure boost oxygen reduction reaction (ORR) performance in alkaline solution.

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