scholarly journals Effects of Silver Modification of La0.8Sr0.2MnO3-δ Cathode on the Catalytic Activity for the Oxygen Reduction Reaction in a Flexible Al-Air Battery

2020 ◽  
pp. 9473-9486
Author(s):  
Changjing Fu ◽  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Air Battery

Nitrogen and phosphorus modification to enhance the catalytic activity of biomass-derived carbon toward the oxygen reduction reaction

2020 ◽  
Vol 4 (6) ◽  
pp. 2707-2717 ◽  
Author(s):  
Lei Han ◽  
Xingyu Cui ◽  
Yanyan Liu ◽  
Guosheng Han ◽  
Xianli Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Synergistic Effect ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Carbon ◽  
Reduction Reaction ◽  
Nitrogen And Phosphorus ◽  
Catalytically Active ◽  
Air Battery ◽  
Phosphorus Modification

N, P heteroatoms are doped into the carbon derived from Fructus azedarach precursor. The successful application in zinc–air battery illustrates that the N, P synergistic effect makes a bright future for the development of catalytically active carbon.

scholarly journals Mn3O4 nanoparticle-decorated hollow mesoporous carbon spheres as an efficient catalyst for oxygen reduction reaction in Zn–air batteries

2020 ◽  
Vol 2 (8) ◽  
pp. 3367-3374
Author(s):  
Yingjie He ◽  
Drew Aasen ◽  
Haoyang Yu ◽  
Matthew Labbe ◽  
Douglas G. Ivey ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Efficient Catalyst ◽  
Air Battery

Hybrids of hollow mesoporous carbon and Mn3O4 nanoparticles exhibit excellent catalytic activity on oxygen reduction reaction (ORR) in Zn–air battery.

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).

Insights into the Catalytic Activity of Barium Carbonate for Oxygen Reduction Reaction

2016 ◽  
Vol 120 (40) ◽  
pp. 22895-22902 ◽  
Author(s):  
Xuecheng Cao ◽  
Tao Hong ◽  
Ruizhi Yang ◽  
Jing-Hua Tian ◽  
Changrong Xia ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Barium Carbonate ◽  
Reduction Reaction

Engineering Mn Atomic Sites in Multi-Dimensional Nitrogen-Doped Carbon for Highly Efficient Oxygen Reduction Reaction

2022 ◽  
Author(s):  
Huixin Ma ◽  
Daijie Deng ◽  
Honghui Zhang ◽  
Feng Chen ◽  
Junchao Qian ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Two Dimensional ◽  
One Dimensional ◽  
Nitrogen Doped ◽  
Half Wave ◽  
Nitrogen Doped Carbon

Nitrogen-coordinated single-atom manganese in multi-dimensional nitrogen-doped carbon electrocatalysts (Mn-NC) was successful constructed by combing two-dimensional nanosheets and one-dimensional nanofibers. The Mn-NC exhibited excellent oxygen reduction reaction catalytic activity with half-wave...

scholarly journals Effect of Pyrolysis Conditions on the Performance of Co–Doped MOF–Derived Carbon Catalysts for Oxygen Reduction Reaction

Catalysts ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1163
Author(s):  
Ning Cui ◽  
Kexiao Bi ◽  
Wei Sun ◽  
Qianqian Wu ◽  
Yinan Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Heating Rate ◽  
Reduction Reaction ◽  
Half Wave ◽  
Step Heating ◽  
The Stability ◽  
Carbon Catalysts ◽  
Co Doped

MOF–derived porous carbon is a type of promising catalyst to replace expensive Pt–based catalysts for oxygen reduction reaction (ORR). The catalytic activity for ORR depends closely on pyrolysis conditions. In this work, a Co–doped ZIF–8 material was chosen as a research object. The effect of pyrolysis conditions (temperature, heating rate, two–step heating) on the ORR performance of ZIF–derived carbon catalysts was systematically studied. The Co–ZIF–8 catalyst carbonized at 900 °C exhibits better ORR catalytic activity than that carbonized at 800 °C and 1000 °C. Moreover, a low heating rate can enhance catalytic activity. Two–step pyrolysis is proven to be an effective way to improve the performance of catalysts. Reducing the heating rate in the low–temperature stage is more beneficial to the ORR performance, compared to the heating rate in the high–temperature stage. The results show that the Co–ZIF–8 catalyst exhibits the best performance when the precursor was heated to 350 °C at 2 °C/min, and then heated to 900 °C at 5 °C/min. The optimum Co–ZIF–8 catalyst shows a half–wave potential of 0.82 V and a current density of 5.2 mA·cm−2 in 0.1 M KOH solution. It also exhibits high content of defects and good graphitization. TEM mapping shows that Co and N atoms are highly dispersed in the polyhedral carbon skeleton. However, two–step pyrolysis has no significant effect on the stability of the catalyst.

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