scholarly journals Core-Shell Fe3O4@NCS-Mn Derived from Chitosan-Schiff Based Mn Complex with Enhanced Catalytic Activity for Oxygen Reduction Reaction

Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 692 ◽  
Author(s):  
Jinhui Tong ◽  
Yuliang Li ◽  
Lili Bo ◽  
Wenhui Wang ◽  
Tao Li ◽  
...  
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Stability ◽  
Reduction Reaction ◽  
Core Shell ◽  
Electron Number ◽  
Chitosan Coating ◽  
Chitosan Schiff Base

A core-shell type of Fe3O4/NCS-Mn composite was prepared by pyrolyzing a precursor fabricated by coating a chitosan-Schiff base Mn complex on Fe3O4 cores. For comparison purposes, the Fe3O4@NCS sample in the absence of Mn and the Fe3O4@NC sample derived from just chitosan coating Fe3O4 were also prepared. Among the three catalysts, Fe3O4@NCS-Mn demonstrates the best electrocatalytic activity compared to commercial Pt/C (20%) for oxygen reduction reaction (ORR). The average of the transferred electron number (n) approached 3.6 in the range of −0.3 to −0.8 V (vs. Ag/AgCl). Moreover, the catalyst exhibited high stability and durability against methanol and may potentially be a promising ORR catalyst for fuel cells.

Ferrocene-based porous organic polymer derived high-performance electrocatalysts for oxygen reduction

2017 ◽  
Vol 5 (42) ◽  
pp. 22163-22169 ◽  
Author(s):  
Baolong Zhou ◽  
Liangzhen Liu ◽  
Pingwei Cai ◽  
Guang Zeng ◽  
Xiaoqiang Li ◽  
...  
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
High Performance ◽  
Reduction Reaction ◽  
Organic Polymer ◽  
Porous Organic Polymers ◽  
Porous Organic Polymer

Two nitrogen-rich porous organic polymers (POPs) were prepared via Schiff base chemistry. Carbonization of these POPs results in porous carbon nanohybrids which exhibit excellent catalytic activity toward the oxygen reduction reaction (ORR).

scholarly journals The effect of lattice strain on catalytic activity

2019 ◽  
Vol 55 (9) ◽  
pp. 1338-1341 ◽  
Author(s):  
Emma Westsson ◽  
Stephen Picken ◽  
Ger Koper
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Lattice Strain ◽  
Reduction Reaction ◽  
Core Shell ◽  
Different Types

We report on the effect of lattice strain in three different types of core–shell electrocatalyst particles on their catalytic activity towards the oxygen reduction reaction.

A rational synthesis of single-atom iron–nitrogen electrocatalysts for highly efficient oxygen reduction reaction

2020 ◽  
Vol 8 (32) ◽  
pp. 16271-16282 ◽  
Author(s):  
Juanjuan Huo ◽  
Li Lu ◽  
Ziyan Shen ◽  
Yan Liu ◽  
Jiaojiao Guo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Alkaline Solution ◽  
Porous Carbon ◽  
High Stability ◽  
Reduction Reaction ◽  
Single Atom ◽  
Methanol Tolerance ◽  
Highly Efficient

A feasible strategy was explored to achieve atomically dispersed Fe–Nx sites anchoring on porous carbon hybrid (Fe-SA/PC). The catalyst possessed excellent catalytic activity, high stability and methanol-tolerance toward ORR in alkaline solution.

scholarly journals Core@shell structured Co–CoO@NC nanoparticles supported on nitrogen doped carbon with high catalytic activity for oxygen reduction reaction

RSC Advances ◽  
2018 ◽  
Vol 8 (26) ◽  
pp. 14462-14472 ◽  
Author(s):  
Zihao Zhen ◽  
Zhongqing Jiang ◽  
Xiaoning Tian ◽  
Lingshan Zhou ◽  
Binglu Deng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Simple Method ◽  
Nitrogen Doped ◽  
Stable Performance ◽  
Nitrogen Doped Carbon

A simple method has been developed for the synthesis of Co–CoO@NC/NC, which exhibits high and stable performance for the ORR.

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