scholarly journals Hydrolytic Dehydrogenation of Ammonia Borane Attained by Ru-Based Catalysts: An Auspicious Option to Produce Hydrogen from a Solid Hydrogen Carrier Molecule

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2199
Author(s):  
Miriam Navlani-García ◽  
David Salinas-Torres ◽  
Diego Cazorla-Amorós
Keyword(s):  
Heterogeneous Catalysts ◽  
Carbon Materials ◽  
Ammonia Borane ◽  
High Hydrogen ◽  
Hydrogen Capacity ◽  
Production Of Hydrogen ◽  
Carrier Molecule ◽  
Hydrogen Carrier ◽  
Storage Methods ◽  
Chemical Hydrogen Storage

Chemical hydrogen storage stands as a promising option to conventional storage methods. There are numerous hydrogen carrier molecules that afford satisfactory hydrogen capacity. Among them, ammonia borane has attracted great interest due to its high hydrogen capacity. Great efforts have been devoted to design and develop suitable catalysts to boost the production of hydrogen from ammonia borane, which is preferably attained by Ru catalysts. The present review summarizes some of the recent Ru-based heterogeneous catalysts applied in the hydrolytic dehydrogenation of ammonia borane, paying particular attention to those supported on carbon materials and oxides.

Kinetics study of solid ammonia borane hydrogen release – modeling and experimental validation for chemical hydrogen storage

2014 ◽  
Vol 16 (17) ◽  
pp. 7959-7968 ◽  
Author(s):  
Young Joon Choi ◽  
Ewa C. E. Rönnebro ◽  
Scot Rassat ◽  
Abhi Karkamkar ◽  
Gary Maupin ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Experimental Validation ◽  
Ammonia Borane ◽  
Hydrogen Release ◽  
Kinetics Study ◽  
Hydrogen Capacity ◽  
Chemical Hydrogen Storage ◽  
Solid Ammonia

Hydrogen capacity and bulk kinetics comparisons of ammonia borane at 160 °C, 200 °C, 250 °C and 300 °C.

Chemical hydrogen storage by methanol: Challenges for the catalytic methanol synthesis from CO2

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Malte Behrens
Keyword(s):  
Hydrogen Storage ◽  
Methanol Synthesis ◽  
Synthesis Process ◽  
Reference Case ◽  
Carrier Molecule ◽  
Hydrogen Carrier ◽  
Chemical Hydrogen Storage

AbstractMethanol is a very promising chemical hydrogen carrier molecule. The well-established industrial methanol synthesis process is a reference case for the desired sustainable synthesis from CO

scholarly journals Selective Styrene Oxidation to Benzaldehyde over Recently Developed Heterogeneous Catalysts

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1680
Author(s):  
Marta A. Andrade ◽  
Luísa M. D. R. S. Martins
Keyword(s):  
Heterogeneous Catalysts ◽  
Carbon Materials ◽  
Oxygen Species ◽  
Styrene Oxidation ◽  
Reaction Conditions ◽  
Reactive Metal ◽  
Catalytic Systems ◽  
Tert Butyl Hydroperoxide ◽  
Metal Organic ◽  
Important Intermediate

The selective oxidation of styrene under heterogeneous catalyzed conditions delivers environmentally friendly paths for the production of benzaldehyde, an important intermediate for the synthesis of several products. The present review explores heterogeneous catalysts for styrene oxidation using a variety of metal catalysts over the last decade. The use of several classes of supports is discussed, including metal–organic frameworks, zeolites, carbon materials and silicas, among others. The studied catalytic systems propose as most used oxidants tert-butyl hydroperoxide, and hydrogen peroxide and mild reaction conditions. The reaction mechanism proceeds through the generation of an intermediate reactive metal–oxygen species by catalyst-oxidant interactions. Overall, most of the studies highlight the synergetic effects among the metal and support for the activity and selectivity enhancement.

CO2-based hydrogen storage – Hydrogen generation from formaldehyde/water

2018 ◽  
Vol 3 (5) ◽  
Author(s):  
Monica Trincado ◽  
Hansjörg Grützmacher ◽  
Martin H. G. Prechtl
Keyword(s):  
Low Temperature ◽  
Hydrogen Generation ◽  
Hydrogen Fuel Cells ◽  
Oxidation Of Methanol ◽  
Global Demand ◽  
Recent Developments ◽  
Carrier Molecule ◽  
Hydrogen Carrier ◽  
Future Demands ◽  
Aqueous Formaldehyde

AbstractFormaldehyde (CH2O) is the simplest and most significant industrially produced aldehyde. The global demand is about 30 megatons annually. Industrially it is produced by oxidation of methanol under energy intensive conditions. More recently, new fields of application for the use of formaldehyde and its derivatives as, i.e. cross-linker for resins or disinfectant, have been suggested. Dialkoxymethane has been envisioned as a combustion fuel for conventional engines or aqueous formaldehyde and paraformaldehyde may act as a liquid organic hydrogen carrier molecule (LOHC) for hydrogen generation to be used for hydrogen fuel cells. For the realization of these processes, it requires less energy-intensive technologies for the synthesis of formaldehyde. This overview summarizes the recent developments in low-temperature reductive synthesis of formaldehyde and its derivatives and low-temperature formaldehyde reforming. These aspects are important for the future demands on modern societies’ energy management, in the form of a methanol and hydrogen economy, and the required formaldehyde feedstock for the manufacture of many formaldehyde-based daily products.

The hydrolysis of ammonia borane catalyzed by NiCoP/OPC-300 nanocatalysts: high selectivity and efficiency, and mechanism

2019 ◽  
Vol 21 (4) ◽  
pp. 850-860 ◽  
Author(s):  
Xiaopeng Qu ◽  
Rui Jiang ◽  
Qian Li ◽  
Fanan Zeng ◽  
Xue Zheng ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
High Selectivity ◽  
Clean Energy ◽  
Ammonia Borane ◽  
Hydrogen Storage Materials ◽  
Storage Materials ◽  
Highly Efficient ◽  
Energy Economy ◽  
Chemical Hydrogen Storage ◽  
Hydrolysis Of

The development of highly efficient and cheap catalysts for the release of hydrogen from chemical hydrogen-storage materials is indispensable for the coming clean energy economy.

scholarly journals Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3071 ◽  
Author(s):  
Umit Bilge Demirci
Keyword(s):  
Liquid State ◽  
Ammonia Borane ◽  
Solid Hydrogen ◽  
Present Review ◽  
Hydrogen Economy ◽  
Technological Readiness ◽  
Critical Issues ◽  
Readiness Level ◽  
Hydrogen Carrier ◽  
Key Issues

Ammonia borane H3N−BH3 (AB) was re-discovered, in the 2000s, to play an important role in the developing hydrogen economy, but it has seemingly failed; at best it has lagged behind. The present review aims at analyzing, in the context of more than 300 articles, the reasons why AB gives a sense that it has failed as an anodic fuel, a liquid-state hydrogen carrier and a solid hydrogen carrier. The key issues AB faces and the key challenges ahead it has to address (i.e., those hindering its technological deployment) have been identified and itemized. The reality is that preventable errors have been made. First, some critical issues have been underestimated and thereby understudied, whereas others have been disproportionally considered. Second, the potential of AB has been overestimated, and there has been an undoubted lack of realistic and practical vision of it. Third, the competition in the field is severe, with more promising and cheaper hydrides in front of AB. Fourth, AB has been confined to lab benches, and consequently its technological readiness level has remained low. This is discussed in detail herein.

N-Doped Carbon Materials as Heterogeneous Catalysts for High Efficiency Isomerization Glucose to Fructose in Aqueous Media

2019 ◽  
Vol 150 (2) ◽  
pp. 493-504 ◽  
Author(s):  
Yong Wang ◽  
Jinghua Wang ◽  
Yuan Zhang ◽  
Feng Song ◽  
Yujiao Xie ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
High Efficiency ◽  
Carbon Materials ◽  
Aqueous Media
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