Metal-free catalytic hydrogen production from a polymethylhydrosilane–water mixture

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5903-5906 ◽  
Author(s):  
Chew Pheng Yap ◽  
Hwa Tiong Poh ◽  
Wai Yip Fan
Keyword(s):  
Free Energy ◽  
Hydrogen Production ◽  
Hydrogen Gas ◽  
Energy Carrier ◽  
Water Mixture ◽  
Metal Free ◽  
On Demand ◽  
Formidable Challenge ◽  
Catalytic Hydrogen

Hydrogen gas is the most promising carbon-free energy carrier although its on-demand generation remains a formidable challenge.

scholarly journals Production and Application of a Soluble Hydrogenase fromPyrococcus furiosus

Archaea ◽  
2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Chang-Hao Wu ◽  
Patrick M. McTernan ◽  
Mary E. Walter ◽  
Michael W. W. Adams
Keyword(s):  
Hydrogen Production ◽  
Alternative Energy ◽  
Pyrococcus Furiosus ◽  
Hydrogen Gas ◽  
Energy Carrier ◽  
Biotechnological Applications ◽  
Biological Mechanisms ◽  
Recombinant Enzymes ◽  
Energy Needs

Hydrogen gas is a potential renewable alternative energy carrier that could be used in the future to help supplement humanity’s growing energy needs. Unfortunately, current industrial methods for hydrogen production are expensive or environmentally unfriendly. In recent years research has focused on biological mechanisms for hydrogen production and specifically on hydrogenases, the enzyme responsible for catalyzing the reduction of protons to generate hydrogen. In particular, a better understanding of this enzyme might allow us to generate hydrogen that does not use expensive metals, such as platinum, as catalysts. The soluble hydrogenase I (SHI) from the hyperthermophilePyrococcus furiosus, a member of the euryarchaeota, has been studied extensively and used in various biotechnological applications. This review summarizes the strategies used in engineering and characterizing three different forms of SHI and the properties of the recombinant enzymes. SHI has also been used inin vitrosystems for hydrogen production and NADPH generation and these systems are also discussed.

A novel model for pyro-electro-catalytic hydrogen production in pure water

2019 ◽  
Vol 21 (41) ◽  
pp. 23009-23016 ◽  
Author(s):  
Julian Schlechtweg ◽  
Sascha Raufeisen ◽  
Michael Stelter ◽  
Patrick Braeutigam
Keyword(s):  
Hydrogen Production ◽  
Thermal Energy ◽  
Pure Water ◽  
Environmentally Friendly ◽  
Hydrogen Gas ◽  
Catalytic Hydrogen ◽  
Novel Model

The pyro-electro-catalytic induced generation of hydrogen gas is an environmentally friendly and sustainable way to convert excess thermal energy into a storable form.

Highly Stable Mo-Doped Fe2P and Fe3P Monolayers as Low-Onset-Potential Electrocatalysts for Nitrogen Fixation

2021 ◽  
Author(s):  
Jie Wu ◽  
Jia-hui Li ◽  
Yang-Xin Yu
Keyword(s):  
Free Energy ◽  
Nitrogen Fixation ◽  
High Selectivity ◽  
Energy Carrier ◽  
Engineering Applications ◽  
Essential Ingredient ◽  
Onset Potential ◽  
Fertilizer Production ◽  
Excellent Stability

Ammonia (NH3) is an essential ingredient for fertilizer production and a carbon-free energy carrier for engineering applications. Searching for novel electrocatalysts with low onset potential, high selectivity and excellent stability...

scholarly journals Thermodynamic and Kinetic Considerations Regarding the Prospects for a Dual-Purpose Hydrogen Extraction and Separation Membrane

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2136
Author(s):  
Karl Sohlberg
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Abstraction ◽  
Hydrogen Gas ◽  
Catalytic Dehydrogenation ◽  
Dual Purpose ◽  
Physical Separation ◽  
Extraction And Separation ◽  
Separation Membrane ◽  
Hydrocarbon Sources ◽  
Critical Materials

Extraction of hydrogen from hydrocarbons is a logical intermediate-term solution for the escalating worldwide demand for hydrogen. This work explores the possibility of using a single membrane to accomplish both the catalytic dehydrogenation and physical separation of hydrogen gas as a possible way to improve the efficiency of hydrogen production from hydrocarbon sources. The present analysis shows that regions of pressure/temperature space exist for which the overall process is thermodynamically spontaneous (ΔG < 0). Each step in the process is based on known physics. The rate of hydrogen production is likely to be controlled by the barrier to hydrogen abstraction, with the density of H-binding sites also playing a role. A critical materials issue will be the strength of the oxide/metal interface.

Metal-free tellurene cocatalyst with tunable bandgap for enhanced photocatalytic hydrogen production

2021 ◽  
Vol 21 ◽  
pp. 100720
Author(s):  
B. Qiu ◽  
C. Wang ◽  
J. Wang ◽  
Z. Lin ◽  
N. Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Photocatalytic Hydrogen Production ◽  
Metal Free ◽  
Tunable Bandgap

scholarly journals Iridium Complex Catalyzed Hydrogen Production from Glucose and Various Monosaccharides

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 891
Author(s):  
Ken-ichi Fujita ◽  
Takayoshi Inoue ◽  
Toshiki Tanaka ◽  
Jaeyoung Jeong ◽  
Shohichi Furukawa ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Catalytic System ◽  
Catalytic Reaction ◽  
Hydrogen Gas ◽  
Water Soluble ◽  
Starting Material ◽  
Iridium Complex ◽  
Production Of Hydrogen ◽  
Bipyridine Ligand

A new catalytic system has been developed for hydrogen production from various monosaccharides, mainly glucose, as a starting material under reflux conditions in water in the presence of a water-soluble dicationic iridium complex bearing a functional bipyridine ligand. For example, the reaction of D-glucose in water under reflux for 20 h in the presence of [Cp*Ir(6,6′-dihydroxy-2,2′-bipyridine)(H2O)][OTf]2 (1.0 mol %) (Cp*: pentamethylcyclopentadienyl, OTf: trifluoromethanesulfonate) resulted in the production of hydrogen gas in 95% yield. In the present catalytic reaction, it was experimentally suggested that dehydrogenation of the alcoholic moiety at 1-position of glucose proceeded.

scholarly journals Carbons Formed in Methane Thermal and Thermocatalytic Decomposition Processes: Properties and Applications

2021 ◽  
Vol 7 (3) ◽  
pp. 50
Author(s):  
Emmi Välimäki ◽  
Lasse Yli-Varo ◽  
Henrik Romar ◽  
Ulla Lassi
Keyword(s):  
Thermal Decomposition ◽  
Hydrogen Production ◽  
Energy Systems ◽  
Hydrogen Gas ◽  
Solid Carbon ◽  
Hydrogen Economy ◽  
Decomposition Processes ◽  
Different Types ◽  
Decomposition Of Methane ◽  
Thermocatalytic Decomposition

The hydrogen economy will play a key role in future energy systems. Several thermal and catalytic methods for hydrogen production have been presented. In this review, methane thermocatalytic and thermal decomposition into hydrogen gas and solid carbon are considered. These processes, known as the thermal decomposition of methane (TDM) and thermocatalytic decomposition (TCD) of methane, respectively, appear to have the greatest potential for hydrogen production. In particular, the focus is on the different types and properties of carbons formed during the decomposition processes. The applications for carbons are also investigated.

scholarly journals Analysis on Characteristic of Hydrogen Gas Dispersion and Evaluation Method of Blast Overpressure in VHTR Hydrogen Production System

2006 ◽  
Vol 5 (4) ◽  
pp. 316-324 ◽  
Author(s):  
Tomoyuki MURAKAMI ◽  
Atsuhiko TERADA ◽  
Tetsuo NISHIHARA ◽  
Yoshiyuki INAGAKI ◽  
Kazuhiko KUNITOMI
Keyword(s):  
Hydrogen Production ◽  
Production System ◽  
Evaluation Method ◽  
Hydrogen Gas ◽  
Gas Dispersion ◽  
Blast Overpressure

scholarly journals A Comprehensive Review on the Recent Development of Ammonia as a Renewable Energy Carrier

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3732
Author(s):  
Muhammad Heikal Hasan ◽  
Teuku Meurah Indra Mahlia ◽  
M. Mofijur ◽  
I.M. Rizwanul Fattah ◽  
Fitri Handayani ◽  
...  
Keyword(s):  
Free Energy ◽  
Renewable Energy ◽  
Energy Density ◽  
Co2 Emissions ◽  
Ammonia Synthesis ◽  
Ghg Emissions ◽  
Energy Carrier ◽  
Energy Sources ◽  
Comprehensive Review ◽  
Technical Advances

Global energy sources are being transformed from hydrocarbon-based energy sources to renewable and carbon-free energy sources such as wind, solar and hydrogen. The biggest challenge with hydrogen as a renewable energy carrier is the storage and delivery system’s complexity. Therefore, other media such as ammonia for indirect storage are now being considered. Research has shown that at reasonable pressures, ammonia is easily contained as a liquid. In this form, energy density is approximately half of that of gasoline and ten times more than batteries. Ammonia can provide effective storage of renewable energy through its existing storage and distribution network. In this article, we aimed to analyse the previous studies and the current research on the preparation of ammonia as a next-generation renewable energy carrier. The study focuses on technical advances emerging in ammonia synthesis technologies, such as photocatalysis, electrocatalysis and plasmacatalysis. Ammonia is now also strongly regarded as fuel in the transport, industrial and power sectors and is relatively more versatile in reducing CO2 emissions. Therefore, the utilisation of ammonia as a renewable energy carrier plays a significant role in reducing GHG emissions. Finally, the simplicity of ammonia processing, transport and use makes it an appealing choice for the link between the development of renewable energy and demand.

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