scholarly journals Electrochemical Activity of a La0.9Ca0.1Co1−xFexO3Catalyst for a Zinc Air Battery Electrode

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Seungwook Eom ◽  
Seyoung Ahn ◽  
Sanghwan Jeong
Keyword(s):  
Oxygen Reduction ◽  
Electrochemical Measurement ◽  
Electrochemical Performances ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Substitution Level ◽  
Battery Electrode ◽  
Substitution Ratio ◽  
Air Battery ◽  
Battery Application

The optimum composition of cathode catalyst has been studied for rechargeable zinc air battery application. La0.9Ca0.1Co1−xFexO3  (x=0–0.4)perovskite powders were prepared using the citrate method. The substitution ratio of Co2+with Fe3+cations was controlled in the range of 0–0.4. The optimum substitution ratio of Fe3+cations was determined by electrochemical measurement of the air cathode composed of the catalyst, polytetrafluoroethylene (PTFE) binder, and Vulcan XC-72 carbon. The substitution by Fe enhanced the electrochemical performances of the catalysts. Considering oxygen reduction/evolution reactions and cyclability, we achieved optimum substitution level ofx=0.1in La0.9Ca0.1Co1−xFexO3.

CeO2 doped Pt/C as an efficient cathode catalyst for an air-cathode single-chamber microbial fuel cell

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25877-25881 ◽  
Author(s):  
Ling Li ◽  
Mingkun Wang ◽  
Ning Cui ◽  
Yuedi Ding ◽  
Qingling Feng ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Reduction Reaction ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Single Chamber ◽  
Cathode Catalysts ◽  
First Time

Incorporation of nanophase ceria into the cathode catalyst Pt/C was used as alternative cathode catalysts for the oxygen reduction reaction in an air-cathode single-chamber microbial fuel cell (SCMFC) for the first time.

Optimal cobalt oxide (Co3O4): Graphene (GR) ratio in Co3O4/GR as air cathode catalyst for air-breathing hybrid electrolyte lithium-air battery

2020 ◽  
Vol 471 ◽  
pp. 228373 ◽  
Author(s):  
Si-Han Peng ◽  
Tse-Hsi Chen ◽  
Chih-Hsun Lee ◽  
Hsin-Chun Lu ◽  
Shingjiang Jessie Lue
Keyword(s):  
Cobalt Oxide ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Air Breathing ◽  
Air Battery

Studies on the oxygen reduction catalyst for zinc–air battery electrode

2003 ◽  
Vol 124 (1) ◽  
pp. 278-284 ◽  
Author(s):  
Xianyou Wang ◽  
P.J. Sebastian ◽  
Mascha A. Smit ◽  
Hongping Yang ◽  
S.A. Gamboa
Keyword(s):  
Oxygen Reduction ◽  
Battery Electrode ◽  
Air Battery ◽  
Oxygen Reduction Catalyst

scholarly journals Hydrothermal Synthesis of Nanostructured Manganese Oxide as Cathodic Catalyst in a Microbial Fuel Cell Fed with Leachate

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yuan Haoran ◽  
Deng Lifang ◽  
Lu Tao ◽  
Chen Yong
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Microbial Fuel Cell ◽  
Cost Effective ◽  
Reduction Reaction ◽  
Reduction Peak ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Noticeable Increase ◽  
Cathodic Catalyst

Much effort has been devoted to the synthesis of novel nanostructured MnO2materials because of their unique properties and potential applications as cathode catalyst in Microbial fuel cell. Hybrid MnO2nanostructures were fabricated by a simple hydrothermal method in this study. Their crystal structures, morphology, and electrochemical characters were carried out by FESEM, N2-adsorption-desorption, and CV, indicating that the hydrothermally synthesized MnO2(HSM) was structured by nanorods of high aspect ratio and multivalve nanoflowers and more positive than the naturally synthesized MnO2(NSM), accompanied by a noticeable increase in oxygen reduction peak current. When the HSM was employed as the cathode catalyst in air-cathode MFC which fed with leachate, a maximum power density of 119.07 mW/m2was delivered, 64.68% higher than that with the NSM as cathode catalyst. Furthermore, the HSM via a 4-e pathway, but the NSM via a 2-e pathway in alkaline solution, and as 4-e pathway is a more efficient oxygen reduction reaction, the HSM was more positive than NSM. Our study provides useful information on facile preparation of cost-effective cathodic catalyst in air-cathode MFC for wastewater treatment.

Highly durable and active non-precious air cathode catalyst for zinc air battery

2011 ◽  
Vol 196 (7) ◽  
pp. 3673-3677 ◽  
Author(s):  
Zhu Chen ◽  
Ja-Yeon Choi ◽  
Haijiang Wang ◽  
Hui Li ◽  
Zhongwei Chen
Keyword(s):  
Cathode Catalyst ◽  
Air Cathode ◽  
Air Battery

Synthesis of Fe3C@porous carbon nanorods via carbonizing Fe complexes for oxygen reduction reaction and Zn–air battery

2020 ◽  
Vol 7 (4) ◽  
pp. 889-896
Author(s):  
Yijie Zhang ◽  
Yong Zhao ◽  
Muwei Ji ◽  
Han-ming Zhang ◽  
Minghui Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Fe Complexes ◽  
Air Battery ◽  
Battery Application

The FeCNRs were controlled prepared via carbonizing the Fe complexes and their activities on ORR was found to be suitable for Zn–air battery application.

Cobalt ion intercalated MnO2/C as air cathode catalyst for rechargeable aluminum–air battery

2020 ◽  
Vol 824 ◽  
pp. 153950 ◽  
Author(s):  
Zijie Xia ◽  
Yunfeng Zhu ◽  
Wenfeng Zhang ◽  
Tongrui Hu ◽  
Tao Chen ◽  
...  
Keyword(s):  
Cathode Catalyst ◽  
Air Cathode ◽  
Cobalt Ion ◽  
Air Battery

Cobalt sulfides constructed heterogeneous interfaces decorated in N, S-codoped carbon nanosheets as highly efficient bifunctional oxygen electrocatalyst

2021 ◽  
Author(s):  
Changbin Sun ◽  
Jia Ding ◽  
Haozhi Wang ◽  
Jie Liu ◽  
Xiaopeng Han ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Rational Design ◽  
Controllable Synthesis ◽  
Carbon Nanosheets ◽  
Vital Importance ◽  
Highly Efficient ◽  
Heterogeneous Interfaces ◽  
Air Battery ◽  
Battery Application

Rational design and controllable synthesis of excellent bifunctional oxygen reduction and evolution reaction (ORR/OER) electrocatalysts are of vital importance for zinc–air battery application. Herein, a nitrogen/sulfur-codoped carbon nanosheet (NSC) decorated...

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