Liquid Metal Shell as an Effective Iron Oxide Modifier for Redox-Based Hydrogen Production at Intermediate Temperatures

ACS Catalysis ◽  
2021 ◽  
pp. 10228-10238
Author(s):  
Iwei Wang ◽  
Yunfei Gao ◽  
Xijun Wang ◽  
Runxia Cai ◽  
Chingchang Chung ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production ◽  
Liquid Metal ◽  
Metal Shell

Hydrogen Production via the Iron/Iron Oxide Looping Cycle

2011 ◽  
Author(s):  
A. Singh ◽  
F. Al-Raqom ◽  
J. Klausner ◽  
J. Petrasch
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production ◽  
Gas Phase ◽  
Energy Content ◽  
Operation Conditions ◽  
Iron Oxide Reduction ◽  
Temperature Ranges ◽  
Iron Iron ◽  
Gas Phase Separation ◽  
Distinct Temperature

The iron/iron-oxide looping cycle has the potential to produce high purity hydrogen from coal or natural gas without the need for gas phase separation: Hydrogen is produced from steam oxidation of iron or Wustite yielding primarily Magnetite; Magnetite is then reduced back to iron/Wustite using syngas (CO+H2). A system model has been developed to identify favorable operation conditions and process configurations. Process configurations for three distinct temperature ranges, (i) 500–950 K, (ii) 950–1100 K, and (iii) 1100–1200 K have been developed. The energy content of high temperature syngas from conventional coal gasifiers is sufficient to drive the looping process throughout the temperature range considered. Temperatures around 1000 K are advantageous for both the hydrogen production step and the iron oxide reduction step. Simulations of a large number of subsequent cycles indicate that quasi-steady operation is reached after approximately 5 cycles. Comparison of simulations and experiments indicate that the process is currently limited by chemical kinetics at lower temperatures. Therefore, product recirculation should be used for a scaled-up process to increase reactant residence times while maintaining sufficient fluidization velocity.

Thermally oxidized iron oxide nanoarchitectures for hydrogen production by solar-induced water splitting

2012 ◽  
Vol 37 (9) ◽  
pp. 8102-8109 ◽  
Author(s):  
Tracey Vincent ◽  
Moran Gross ◽  
Hen Dotan ◽  
Avner Rothschild
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production ◽  
Water Splitting ◽  
Oxidized Iron

Synthesis of sub-micrometer biphasic Au–AuGa2/liquid metal frameworks

Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21419-21432 ◽  
Author(s):  
Romain David ◽  
Norihisa Miki
Keyword(s):  
Crystal Structure ◽  
Liquid Metal ◽  
Au Nanoparticle ◽  
Metal Shell ◽  
Nanoparticle Morphology ◽  
Fine Control

Biphasic Au nanoparticle–liquid metal shell–core sub-micrometer droplets are synthesized with fine control of the nanoparticle morphology, composition and crystal structure.

Hydrogen production via steam–iron reaction using iron oxide modified with very small amounts of palladium and zirconia

2005 ◽  
Vol 288 (1-2) ◽  
pp. 143-148 ◽  
Author(s):  
Kohei Urasaki ◽  
Naoshi Tanimoto ◽  
Taito Hayashi ◽  
Yasushi Sekine ◽  
Eiichi Kikuchi ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Hydrogen Production

scholarly journals Hydrogen production via methane pyrolysis in a liquid metal bubble column reactor with a packed bed

2016 ◽  
Vol 299 ◽  
pp. 192-200 ◽  
Author(s):  
T. Geißler ◽  
A. Abánades ◽  
A. Heinzel ◽  
K. Mehravaran ◽  
G. Müller ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Liquid Metal ◽  
Bubble Column ◽  
Packed Bed ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Methane Pyrolysis

Liquid metal activated hydrogen production from waste aluminum for power supply and its life cycle assessment

2019 ◽  
Vol 44 (33) ◽  
pp. 17505-17514 ◽  
Author(s):  
Shuo Xu ◽  
Xiao-Hu Yang ◽  
Shou-Sheng Tang ◽  
Jing Liu
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Hydrogen Production ◽  
Liquid Metal ◽  
Power Supply
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