Calculations of theoretical efficiencies for electrochemically-mediated tandem solar water splitting as a function of bandgap energies and redox shuttle potential

2019 ◽  
Vol 12 (1) ◽  
pp. 261-272 ◽  
Author(s):  
Sam Keene ◽  
Rohini Bala Chandran ◽  
Shane Ardo
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Cost Effective ◽  
Solar Hydrogen ◽  
Solar Water ◽  
Promising Technology ◽  
Solar Water Splitting ◽  
Redox Shuttle ◽  
Solar Hydrogen Production ◽  
Light Absorbers

Tandem Z-scheme solar water splitting devices composed of two light-absorbers that are connected electrochemically by a soluble redox shuttle constitute a promising technology for cost-effective solar hydrogen production.

Using hematite for photoelectrochemical water splitting: a review of current progress and challenges

2016 ◽  
Vol 1 (4) ◽  
pp. 243-267 ◽  
Author(s):  
Andebet Gedamu Tamirat ◽  
John Rick ◽  
Amare Aregahegn Dubale ◽  
Wei-Nien Su ◽  
Bing-Joe Hwang
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Clean Energy ◽  
Photoelectrochemical Water Splitting ◽  
Solar Hydrogen ◽  
Promising Technology ◽  
Energy Economy ◽  
Solar Hydrogen Production ◽  
Pec Water Splitting

Photoelectrochemical (PEC) water splitting is a promising technology for solar hydrogen production to build a sustainable, renewable and clean energy economy.

scholarly journals Plasmonic Metal Nanostructures as Efficient Light Absorbers for Solar Water Splitting

2021 ◽  
pp. 2100092
Author(s):  
Yawen Wang ◽  
Junchang Zhang ◽  
Wenkai Liang ◽  
Wei Qin ◽  
Yinghui Sun ◽  
...  
Keyword(s):  
Water Splitting ◽  
Metal Nanostructures ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Light Absorbers

H2 Generation by Two-Step Water Splitting With CeO2-MOx Using Concentrated Solar Thermal Energy

Solar Energy ◽  
2006 ◽  
Author(s):  
Hiroshi Kaneko ◽  
Hideyuki Ishihara ◽  
Takao Miura ◽  
Hiromitsu Nakajima ◽  
Noriko Hasegawa ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Thermal Energy ◽  
Infrared Imaging ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Solar Simulator ◽  
Solar Hydrogen ◽  
H2 Generation ◽  
Solar Hydrogen Production

CeO2-MOx (M = Mn, Fe, Ni, Cu) reactive ceramics, having high melting points and high conductivities of O2−, were synthesized with the combustion method from their nitrates for solar hydrogen production. The prepared CeO2-MOx samples were solid solutions between CeO2 and MOx with the fluorite structure through XRD. Two-step water splitting reactions with CeO2-MOx reactive ceramics proceeded at 1573–1773K for the O2 releasing step and at 1273K for the H2 generation step by irradiation of infrared imaging furnace as a solar simulator. The amounts of O2 evolved in the O2 releasing reaction with CeO2-MOx and CeO2 systems increased with the increase of the reaction temperature. The amounts of H2 evolved in the H2 generation reaction with CeO2-MOx systems except for M = Cu were more than that of CeO2 system after the O2 releasing reaction at the temperatures of 1673 and 1773K. The largest amount of H2 was generated with CeO2-NiO after the O2 releasing reaction at 1573, 1673 and 1773K. The O2 releasing reaction at 1673K and H2 generation reaction at 1273K with CeO2-Fe2O3 were repeated four times with the evolving of O2 (1.3cm3/g-sample) and H2 (2.3cm3/g-sample) gases, respectively. The possibility of solar hydrogen production with CeO2-MOx (M = Mn, Fe, Ni) reactive ceramics system by using concentrated solar thermal energy was suggested.

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