Catalytic Effect of Heat-treated Iron and Copper Phthalocyanines in Non-aqueous Electrolyte Li/air Batteries – A Review
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Abstract
In this review, we summarize our research on the characterization of FeCu/C catalyst and its effect in non-aqueous electrolyte Li/air cells. The catalyst is synthesized by impregnating metal phthalocyanine complex into a high surface area carbon, followed by pyrolyzing the complex-loaded carbon under argon atmosphere. High resolution X-ray photoelectron spectroscopy (HR-XPS) results indicate that the metals in the catalyst are present in the form of a mixture of metal-nitrogen complexes (MN) and metal oxides (MO). Using coin-type Li/air cells as the testing vehicle, the FeCu/C is determined to affect the Li/air cells in three manners: (1) It catalyzes two-electron oxygen reduction reaction (ORR) to form Li2O2, which reduces discharge polarization of the Li/air cells, (2) It promotes chemical disproportionation of Li2O2, which leads to an apparent four-electron ORR, and (3) It induces reduction of electrolyte solvents, which adds a second lower discharge voltage plateau at ∼1.7 V. In addition, the FeCu/C catalyst increases the open circle voltage (OCV) recovery rate of the Li/air cells as a result of the chemical disproportionation of Li2O2, which releases oxygen and the resulting oxygen participates in OCV recovery.
©2012 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- Short Reports
- Catalytic Effect of Heat-treated Iron and Copper Phthalocyanines in Non-aqueous Electrolyte Li/air Batteries – A Review
- Thermodynamic Investigation of an Integrated Gasification Plant with Solid Oxide Fuel Cell and Steam Cycles
- On a Submerged Device with Controlled Dynamics for Efficient Wave Energy Conversion
- Modeling and Simulation of a Parabolic Trough Power Plant
- Fostering Interdependence to Minimise Political Risks in a European-North African Renewable Electricity Supergrid
- Germany Should Develop Large Hot Water Reservoirs
- Future Conferences on Sustainable Energy Science and Policy 2012
Articles in the same Issue
- Masthead
- Short Reports
- Catalytic Effect of Heat-treated Iron and Copper Phthalocyanines in Non-aqueous Electrolyte Li/air Batteries – A Review
- Thermodynamic Investigation of an Integrated Gasification Plant with Solid Oxide Fuel Cell and Steam Cycles
- On a Submerged Device with Controlled Dynamics for Efficient Wave Energy Conversion
- Modeling and Simulation of a Parabolic Trough Power Plant
- Fostering Interdependence to Minimise Political Risks in a European-North African Renewable Electricity Supergrid
- Germany Should Develop Large Hot Water Reservoirs
- Future Conferences on Sustainable Energy Science and Policy 2012
