Plasma-chemical reduction of iron oxide photoanodes for efficient solar hydrogen production

2014 ◽  
Vol 39 (10) ◽  
pp. 4828-4835 ◽  
Author(s):  
Andreas Mettenbörger ◽  
Trilok Singh ◽  
Aadesh P. Singh ◽  
Tommi T. Järvi ◽  
Michael Moseler ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production ◽  
Chemical Reduction ◽  
Plasma Chemical ◽  
Solar Hydrogen ◽  
Reduction Of Iron ◽  
Solar Hydrogen Production

A multi-stacked hyperporous silicon flake for highly active solar hydrogen production

2016 ◽  
Vol 52 (67) ◽  
pp. 10221-10224 ◽  
Author(s):  
Youn Jeong Jang ◽  
Jaegeon Ryu ◽  
Dongki Hong ◽  
Soojin Park ◽  
Jae Sung Lee
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Chemical Reduction ◽  
Production Performance ◽  
Natural Clay ◽  
Solar Hydrogen ◽  
Highly Active ◽  
Selective Chemical ◽  
Solar Hydrogen Production

3D multi-stacked Si flakes have been successfully fabricatedviathe selective chemical reduction of natural clay on the strength of an inherently negative catalyst. Their solar-driven hydrogen production performance scored as the highest Si-based photocatalyst for hydrogen evolution with superior stability.

Solar hydrogen production via thermochemical iron oxide–iron sulfate water splitting cycle

2015 ◽  
Vol 40 (4) ◽  
pp. 1639-1650 ◽  
Author(s):  
Rahul R. Bhosale ◽  
Anand Kumar ◽  
Leo J.P. van den Broeke ◽  
Shahd Gharbia ◽  
Dareen Dardor ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production ◽  
Water Splitting ◽  
Iron Sulfate ◽  
Solar Hydrogen ◽  
Solar Hydrogen Production

scholarly journals Efficiency gains for thermally coupled solar hydrogen production in extreme cold

2021 ◽  
Author(s):  
Moritz Kölbach ◽  
Kira Rehfeld ◽  
Matthias M. May
Keyword(s):  
Hydrogen Production ◽  
Thermal Coupling ◽  
Efficiency Gains ◽  
Solar Hydrogen ◽  
World Regions ◽  
Extreme Cold ◽  
Solar Hydrogen Production

We analyse the potential of solar hydrogen production in remote and cold world regions such as Antarctica and quantify the efficiency benefits of thermal coupling.

scholarly journals Electrochemical Hydrogen Production Powered by PV/CSP Hybrid Power Plants: A Modelling Approach for Cost Optimal System Design

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3437
Author(s):  
Andreas Rosenstiel ◽  
Nathalie Monnerie ◽  
Jürgen Dersch ◽  
Martin Roeb ◽  
Robert Pitz-Paal ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Power Plants ◽  
Large Scale ◽  
Energy System ◽  
Solar Hydrogen ◽  
Energy System Model ◽  
Optimal System Design ◽  
Solar Hydrogen Production ◽  
Electrochemical Water Splitting ◽  
Climate Neutrality

Global trade of green hydrogen will probably become a vital factor in reaching climate neutrality. The sunbelt of the Earth has a great potential for large-scale hydrogen production. One promising pathway to solar hydrogen is to use economically priced electricity from photovoltaics (PV) for electrochemical water splitting. However, storing electricity with batteries is still expensive and without storage only a small operating capacity of electrolyser systems can be reached. Combining PV with concentrated solar power (CSP) and thermal energy storage (TES) seems a good pathway to reach more electrolyser full load hours and thereby lower levelized costs of hydrogen (LCOH). This work introduces an energy system model for finding cost-optimal designs of such PV/CSP hybrid hydrogen production plants based on a global optimization algorithm. The model includes an operational strategy which improves the interplay between PV and CSP part, allowing also to store PV surplus electricity as heat. An exemplary study for stand-alone hydrogen production with an alkaline electrolyser (AEL) system is carried out. Three different locations with different solar resources are considered, regarding the total installed costs (TIC) to obtain realistic LCOH values. The study shows that a combination of PV and CSP is an auspicious concept for large-scale solar hydrogen production, leading to lower costs than using one of the technologies on its own. For today’s PV and CSP costs, minimum levelized costs of hydrogen of 4.04 USD/kg were determined for a plant located in Ouarzazate (Morocco). Considering the foreseen decrease in PV and CSP costs until 2030, cuts the LCOH to 3.09 USD/kg while still a combination of PV and CSP is the most economic system.

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