Synergistic oxygen reduction of dual redox catalysts boosting the power of lithium–air battery

2018 ◽  
Vol 20 (44) ◽  
pp. 27930-27936 ◽  
Author(s):  
Yun Guang Zhu ◽  
F. W. Thomas Goh ◽  
Ruiting Yan ◽  
Sisi Wu ◽  
Stefan Adams ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Reduction Reaction ◽  
Redox Mediators ◽  
Dry Air ◽  
Redox Catalysts ◽  
Air Battery

The mechanism of redox-mediated oxygen reduction reaction is unequivocally revealed by in situ spectroelectrochemical studies. With judiciously selected redox mediators, the cell operates at near unity utilization of Li metal and presents an unprecedented power density in O2 and dry air.

Highly dispersed γ-Fe2O3 embedded in nitrogen doped carbon for the efficient oxygen reduction reaction

2019 ◽  
Vol 9 (17) ◽  
pp. 4581-4587 ◽  
Author(s):  
Zhourong Xiao ◽  
Guoqiang Shen ◽  
Fang Hou ◽  
Rongrong Zhang ◽  
Yueting Li ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Reduction Reaction ◽  
Sacrificial Template ◽  
Nitrogen Doped ◽  
Highly Dispersed ◽  
Air Battery ◽  
Nitrogen Doped Carbon

A sacrificial template strategy is developed to synthesize highly dispersed γ-Fe2O3 embedded in porous N-doped carbon. The as-synthesized catalyst exhibits high ORR performance and presents a power density of 112 mW cm−2 in zinc–air battery.

Mn3O4nanoparticles on layer-structured Ti3C2MXene towards the oxygen reduction reaction and zinc–air batteries

2017 ◽  
Vol 5 (39) ◽  
pp. 20818-20823 ◽  
Author(s):  
Qi Xue ◽  
Zengxia Pei ◽  
Yan Huang ◽  
Minshen Zhu ◽  
Zijie Tang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Power Density ◽  
Reduction Reaction ◽  
Electrochemical Activity ◽  
Air Battery ◽  
Zinc Air Batteries

Mn3O4nanoparticles supported by layered Ti3C2MXene displayed favorable electrochemical activity for oxygen reduction reaction and superb power density for zinc–air battery.

scholarly journals In situ synthesis of metal embedded nitrogen doped carbon nanotubes as an electrocatalyst for the oxygen reduction reaction with high activity and stability

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 25051-25056 ◽  
Author(s):  
Yanhong Yin ◽  
Hengbo Zhang ◽  
Rongzhen Gao ◽  
Aili Wang ◽  
Xinxin Mao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Reduction Reaction ◽  
In Situ Synthesis ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

In this work, a Co–N doped carbon nanotube (CNT) catalyst was fabricated via a simple pyrolysis approach.

In situ preparation of Ca0.5Mn0.5O/C as a novel high-activity catalyst for the oxygen reduction reaction

2016 ◽  
Vol 4 (48) ◽  
pp. 19147-19153 ◽  
Author(s):  
Yu-Qi Lyu ◽  
Chi Chen ◽  
Yang Gao ◽  
Mattia Saccoccio ◽  
Francesco Ciucci
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Rock Salt ◽  
Reduction Reaction ◽  
In Situ Preparation ◽  
Enhanced Activity ◽  
Activity Catalyst

Ca-substituted rock-salt MnO/C (Ca0.5Mn0.5O/C) is prepared using an in situ approach and shows enhanced activity for the oxygen reduction reaction (ORR).

scholarly journals N–doped hierarchical porous carbon nanoscrolls towards efficient oxygen reduction reaction in Zn–air batteries via interior and exterior modification

2021 ◽  
Author(s):  
Binhong He ◽  
Yangyang Chen ◽  
Da Hu ◽  
Ziyan Wen ◽  
Minjie Zhou ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Rational Design ◽  
Clean Energy ◽  
Reduction Reaction ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Carbon Nanoscrolls ◽  
Energy Conversion Devices

Rational design of oxygen reduction reaction (ORR) electrocatalysts is essential for promoting the development of clean energy conversion devices. Herein, we report an in–situ sacrificial template strategy combining with external...

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