Magnetically recyclable Co/ZnO@NiFe2O4 nanoparticles as highly active and reusable catalysts for hydrazine monohydrate hydrogen generation

2021 ◽  
Author(s):  
Samikannu Prabu ◽  
Kung-Yuh Chiang
Keyword(s):  
Hydrogen Storage ◽  
Magnetic Nanoparticle ◽  
Storage Capacity ◽  
Hydrogen Generation ◽  
Cost Effective ◽  
The Novel ◽  
Hydrazine Monohydrate ◽  
Hydrogen Storage Capacity ◽  
Highly Active ◽  
Nife2o4 Nanoparticles

The novel and cost-effective highly magnetic nanoparticle (NP) catalysts for hydrazine monohydrate dehydrogenation were successfully developed. It will provide a high gravimetric hydrogen storage capacity.

Regeneration of Ammonia-Borane Complex for Hydrogen Storage

2005 ◽  
Vol 884 ◽  
Author(s):  
Nahid Mohajeri ◽  
Ali T-Raissi
Keyword(s):  
Hydrogen Storage ◽  
Energy Efficient ◽  
Storage Capacity ◽  
Storage System ◽  
Cost Effective ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
The Past ◽  
Hydrogen Storage System ◽  
Energy Center

AbstractAt the Florida Solar Energy Center (FSEC), a research program is underway for developing a high-density hydrogen storage system based on amine-borane (AB) complexes. Due to their high hydrogen capacity, these hydrides have been employed, in the past, as disposable hydrogen sources for fuel cell applications. However, to meet the requirements for hydrogen storage onboard vehicles, it is essential that cost effective and energy efficient methods for the regeneration (i.e. hydrogenation) of the spent (dehydrogenated) AB complexes can be found that utilize only hydrogen and/or electricity (i.e. the only plausible hydrogen economy energy carriers).We are studying two ammoniaborane (NH3BH3)-based systems with high hydrogen storage capacity. The first system employs a borazine-cyclotriborazane cycle. Borazine is a product of NH3BH3 thermolysis. Cyclotriborazane is the inorganic analog of cyclohexane. The second system employs polymeric AB complexes such as poly-(aminoborane) and polyborazylene. Poly-(aminoborane), an inorganic analog of polyethylene, is also a product of amoniaborane thermolysis whilepolyborazylene is the product of borazine thermolysis.For the two systems above, we are developing regeneration (i.e. reduction of borazine, poly-(aminoborane) and polyborazylene) schemes based on: 1) catalytic hydrogenation and 2) indirect (multi-step) synthesis techniques.

Ultra-highly active Ir-Ru-B/CeO2 catalyst for hydrogen generation from hydrazine monohydrate

2021 ◽  
Author(s):  
Yu-Ping Qiu ◽  
Weizhen Wang ◽  
Mu-Hua Chen ◽  
Qing Shi ◽  
Zhiqing Yang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Generation ◽  
Catalytic Decomposition ◽  
Hydrazine Monohydrate ◽  
On Demand ◽  
Storage Technology ◽  
Highly Active ◽  
Chemical Hydrogen Storage

On-demand hydrogen generation from catalytic decomposition of hydrazine monohydrate (N2H4·H2O) represents a promising chemical hydrogen storage technology for onboard and portable applications. But the performances of existing catalysts are still...

Hydrogen Storage Capacity Improvement of Nanostructured Materials

2001 ◽  
Vol 704 ◽  
Author(s):  
Jeremy Lawrence ◽  
Gu Xu
Keyword(s):  
Hydrogen Storage ◽  
Storage Capacity ◽  
Rf Sputtering ◽  
Cost Effective ◽  
Hydrogen Storage Capacity ◽  
Hydrogen Storage Properties ◽  
Hydrocarbon Reforming ◽  
Capacity Improvement ◽  
Storage Properties ◽  
Adsorption Systems

AbstractSafe, lightweight, and cost-effective materials are required to practically store hydrogen for use in portable fuel cell applications. Compressed hydrogen and on-board hydrocarbon reforming present certain advantages, but their limitations must ultimately render them insufficient. Storage in hydrides and adsorption systems show promise in models and experimentation, but a practical medium remains unavailable. To study hydrogen storage properties a new volumetric testing apparatus was designed and constructed. Adsorption conditions are evaluated up to pressures exceeding 250 bar and a broad range of temperatures. RF sputtering was used to introduce metals to carbon nanotubes with the aim to enhance hydrogen storage. Here we show a significant improvement in the gravimetric storage density over that of as-prepared single-wall nanotube samples that may be due to the unique interface introduced.

scholarly journals Correction: Cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity

2021 ◽  
Author(s):  
L. Scott Blankenship
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Storage Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Storage Capacity ◽  
Cigarette Butt ◽  
Energy Environ

Correction for ‘Cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity’ by L. Scott Blankenship et al., Energy Environ. Sci., 2017, 10, 2552–2562, DOI: 10.1039/C7EE02616A.

scholarly journals Enabling Storage and Utilization of Low-Carbon Electricity: Power to Formic Acid

2021 ◽  
Author(s):  
Kuo-Wei Huang ◽  
Sudipta Chatterjee ◽  
Indranil Dutta ◽  
Yanwei Lum ◽  
Zhiping Lai
Keyword(s):  
Hydrogen Storage ◽  
Formic Acid ◽  
Storage Capacity ◽  
Energy Carrier ◽  
Hydrogen Energy ◽  
Low Carbon ◽  
Hydrogen Storage Capacity ◽  
Electricity Power ◽  
Low Toxicity

Formic acid has been proposed as a hydrogen energy carrier because of its many desirable properties, such as low toxicity and flammability, and a high volumetric hydrogen storage capacity of...

Devitrification and hydrogen storage capacity of the eutectic Ca72Mg28 metallic glass

2017 ◽  
Vol 725 ◽  
pp. 916-922 ◽  
Author(s):  
K. Saksl ◽  
J. Ďurišin ◽  
D. Balga ◽  
O. Milkovič ◽  
T. Brestovič ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity

Mechanochemical synthesis of a Mg-Li-Al-H complex hydride

2009 ◽  
Vol 24 (9) ◽  
pp. 2880-2885 ◽  
Author(s):  
Jing Zhang ◽  
Wei Yan ◽  
Chenguang Bai ◽  
Fusheng Pan
Keyword(s):  
Solid Solution ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Raw Materials ◽  
Initial Step ◽  
Hydrogen Atmosphere ◽  
Al Alloy ◽  
Hydrogen Storage Capacity ◽  
Scanning Calorimetry ◽  
Complex Hydride

Mg-Li-Al alloy was prepared by ingot casting and then underwent subsequent reactive ball milling. A Mg-Li-Al-H complex hydride was obtained under a 0.4 MPa hydrogen atmosphere at room temperature, and as high as 10.7 wt% hydrogen storage capacity was achieved, with the peak desorption temperature of the initial step at approximately 65 °C. The evolution of the reaction during milling, as well as the effect of Li/Al ratio in the raw materials on the desorption properties of the hydrides formed, were studied by x-ray diffraction and simultaneous thermogravimetry and differential scanning calorimetry techniques. The results showed that mechanical milling increases the solubility of Li in Mg, leading to the transformation of bcc β(Li) solid solution to hcp α(Mg) solid solution, the latter continues to incorporate Li and Al, which stimulates the formation of Mg-Li-Al-H hydride. A lower Li/Al ratio resulted in faster hydrogen desorption rate and a greater amount of hydrogen released at a low temperature range, but sacrificing total hydrogen storage capacity.

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