Predicting the solar thermochemical water splitting ability and reaction mechanism of metal oxides: a case study of the hercynite family of water splitting cycles

2015 ◽  
Vol 8 (12) ◽  
pp. 3687-3699 ◽  
Author(s):  
Christopher L. Muhich ◽  
Brian D. Ehrhart ◽  
Vanessa A. Witte ◽  
Samantha L. Miller ◽  
Eric N. Coker ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Metal Oxides ◽  
Water Splitting ◽  
Thermal Water ◽  
Solar Thermal ◽  
Novel Materials ◽  
Solar Thermochemical

We report and validate a method for predicting the solar thermal water splitting abilities of novel materials using easily calculated quantities.

Near-isothermal Ferrite/Alumina (“Hercynite Cycle”) Two-step Red/Ox Cycle for Solar-thermal Water Splitting

2014 ◽  
Author(s):  
Christopher L. Muhich ◽  
Brian D. Ehrhart ◽  
Ibraheam Al-Shankiti ◽  
Alan W. Weimer
Keyword(s):  
Water Splitting ◽  
Thermal Water ◽  
Solar Thermal

A review and perspective of efficient hydrogen generation via solar thermal water splitting

2015 ◽  
Vol 5 (3) ◽  
pp. 261-287 ◽  
Author(s):  
Christopher L. Muhich ◽  
Brian D. Ehrhart ◽  
Ibraheam Al-Shankiti ◽  
Barbara J. Ward ◽  
Charles B. Musgrave ◽  
...  
Keyword(s):  
Water Splitting ◽  
Thermal Water ◽  
Hydrogen Generation ◽  
Solar Thermal

Hydrogen Production by Solar Thermochemical Water-Splitting/Methane-Reforming Process

Solar Energy ◽  
2003 ◽  
Author(s):  
Tatsuya Kodama ◽  
Yoshiyasu Kondoh ◽  
Atsushi Kiyama ◽  
Ken-Ich Shimizu
Keyword(s):  
Hydrogen Production ◽  
Metal Oxide ◽  
Water Splitting ◽  
Thermal Energy ◽  
Experimental Studies ◽  
Reduction Process ◽  
Thermal Reduction ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Solar Thermochemical

Two different routes of solar thermochemical hydrogen production are reviewed. One is two-step water splitting cycle by using a metal-oxide redox pair. The first step is based on the thermal reduction of metal oxide, which is a highly endothermic process driven by concentrated solar thermal energy. The second step involves water decomposition with the thermally-reduced metal oxide. The first thermal reduction process requires very-high temperatures, which may be realized in sun-belt regions. Another hydrogen production route is solar reforming of natural gas (methane), which can convert methane to hydrogen via calorie-upgrading by using concentrated solar thermal energy. Solar reforming is currently the most advanced solar thermochemical process in sun belt. There is also possibility for the solar reforming to be applied for worldwide solar concentrating facilities where direct insolation is weaker than that in sun belt. Our experimental studies to improve the relevant catalytic technologies are shown and discussed.

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