scholarly journals Natural phosphorus-doped honeycomb carbon materials as oxygen reduction catalysts derived from Pulsatilla chinensis (Bunge) Regel

RSC Advances ◽  
2017 ◽  
Vol 7 (23) ◽  
pp. 13904-13910 ◽  
Author(s):  
Lei Zhao
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Pulsatilla Chinensis ◽  
Oxygen Reduction Catalysts ◽  
Phosphorus Doped ◽  
Reduction Catalysts

Facile phosphorus (P)-doped carbon materials based on Pulsatilla chinensis (Bunge) Regel (PCR) were directly used in oxygen reduction reaction (ORR).

Treasure Map for Nonmetallic Catalyst: Optimal Nitrogen and Fluorine Distribution of Biomass-Derived Carbon Materials for High-Performance Oxygen Reduction Catalysts

2021 ◽  
Author(s):  
Yaling Zhao ◽  
Yang Liu ◽  
Ye Chen ◽  
Xupo Liu ◽  
Xiaoge Li ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Throughput ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts

Heteroatom-doped porous carbon materials have shown promising prospects in the field of Zn-air batteries (ZABs) and fuel cells. However, the high-throughput preparation and instant screening of excellent oxygen reduction reaction...

Ionic liquid derived carbons as highly efficient oxygen reduction catalysts: first elucidation of pore size distribution dependent kinetics

2014 ◽  
Vol 50 (12) ◽  
pp. 1469-1471 ◽  
Author(s):  
Zhiyong Zhang ◽  
Gabriel M. Veith ◽  
Gilbert M. Brown ◽  
Pasquale F. Fulvio ◽  
Patrick C. Hillesheim ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Oxygen Reduction Reaction ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Oxygen Reduction ◽  
Size Distribution ◽  
Reduction Reaction ◽  
Highly Efficient ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts

Pore size distribution in ionic liquid derived N-doped carbons affects both activity and kinetics in the oxygen reduction reaction.

Porous calcium–manganese oxide/carbon nanotube microspheres as efficient oxygen reduction catalysts for rechargeable zinc–air batteries

2021 ◽  
Author(s):  
Nguk Neng Tham ◽  
Xiaoming Ge ◽  
Aishui Yu ◽  
Bing Li ◽  
Yun Zong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Porous Structure ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts ◽  
Zinc Air Batteries

CaMnO3−δ/carbon nanotubes show excellent oxygen reduction reaction activity benefitting from their unique porous structure and synergistic coupling between CaMnO3−δ and carbon nanotubes.

P–Fe bond oxygen reduction catalysts toward high-efficiency metal–air batteries and fuel cells

2020 ◽  
Vol 8 (18) ◽  
pp. 9121-9127 ◽  
Author(s):  
Huihui Jin ◽  
Zongkui Kou ◽  
Weiwei Cai ◽  
Huang Zhou ◽  
Pengxia Ji ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Efficiency ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Carbon Framework ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts ◽  
Co Doped

An Fe, N, P co-doped carbon framework catalyst (CPFeNPC) with a novel C–P–Fe–Nx–P–C system exhibits superior oxygen reduction reaction (ORR) catalytic performance and shines new light on the real application of metal–N–C catalysts in fuel cells.

Transition-metal-oxide-based catalysts for the oxygen reduction reaction

2018 ◽  
Vol 6 (18) ◽  
pp. 8194-8209 ◽  
Author(s):  
Yao Wang ◽  
Jing Li ◽  
Zidong Wei
Keyword(s):  
Electrical Conductivity ◽  
Transition Metal ◽  
Metal Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Transition Metal Oxide ◽  
Reduction Reaction ◽  
Intrinsic Activity ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts

Recent advances in the electrical conductivity, intrinsic activity and morphology design of transition-metal-oxide-based oxygen reduction catalysts are summarized.

N and S Co-doped Ordered Mesoporous Carbon: An Efficient Electrocatalyst for Oxygen Reduction Reaction in Microbial Fuel Cells

2020 ◽  
Vol 16 (4) ◽  
pp. 625-638
Author(s):  
Leila Samiee ◽  
Sedigheh Sadegh Hassani
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Carbon Substrate ◽  
Promising Candidate ◽  
X Ray ◽  
Carbon Framework ◽  
Co Doped

Background: Porous carbon materials are promising candidate supports for various applications. In a number of these applications, doping of the carbon framework with heteroatoms provides a facile route to readily tune the carbon properties. The oxygen reduction reaction (ORR), where the reaction can be catalyzed without precious metals is one of the common applications for the heteroatom-doped carbons. Therefore, heteroatom doped catalysts might have a promising potential as a cathode in Microbial fuel cells (MFCs). MFCs have a good potential to produce electricity from biological oxidization of wastes at the anode and chemical reduction at the cathode. To the best of our knowledge, no studies have been yet reported on utilizing Sulfur trioxide pyridine (STP) and CMK-3 for the preparation of (N and S) doped ordered porous carbon materials. The presence of highly ordered mesostructured and the synergistic effect of N and S atoms with specific structures enhance the oxygen adsorption due to improving the electrocatalytic activity. So the optimal catalyst, with significant stability and excellent tolerance of methanol crossover can be a promising candidate for even other storage and conversion devices. Methods: The physico-chemical properties of the prepared samples were determined by Small Angle X-ray Diffraction (SAXRD), N2 sorption-desorption, Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM) and X-ray Photoelectron Spectroscopy (XPS). The prepared samples were further applied for oxygen reduction reaction (ORR) and the optimal cathode was tested with the Microbial Fuel Cell (MFC) system. Furthermore, according to structural analysis, The HRTEM, and SAXRD results confirmed the formation of well-ordered hexagonal (p6mm) arrays of mesopores in the direction of (100). The EDS and XPS approved that N and S were successfully doped into the CMK-3 carbon framework. Results: Among all the studied CMK-3 based catalysts, the catalyst prepared by STP precursor and pyrolysis at 900°C exhibited the highest ORR activity with the onset potential of 1.02 V vs. RHE and 4 electron transfer number per oxygen molecule in 0.1 M KOH. The high catalyst durability and fuel-crossover tolerance led to stable performance of the optimal cathode after 5000 s operation, while the Pt/C cathode-based was considerably degraded. Finally, the MFC system with the optimal cathode displayed 43.9 mW·m-2 peak power density showing even reasonable performance in comparison to a Pt/C 20 wt.%.cathode. Conclusions: The results revealed that the synergistic effect of nitrogen and sulfur co-doped on the carbon substrate structure leads to improvement in catalytic activity. Also, it was clearly observed that the porous structure and order level of the carbon substrate could considerably change the ORR performance.

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.

Oxygen reduction reaction on Pd nanoparticles supported on novel mesoporous carbon materials

2021 ◽  
pp. 139132
Author(s):  
Madis Lüsi ◽  
Heiki Erikson ◽  
Kaido Tammeveski ◽  
Alexey Treshchalov ◽  
Arvo Kikas ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Carbon Materials ◽  
Pd Nanoparticles ◽  
Reduction Reaction ◽  
Mesoporous Carbon Materials
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