Portable ammonia-borane-based H2 power-pack for unmanned aerial vehicles

Seo, Jung Eun; Kim, Yujong; Kim, Yongmin; Kim, Kibeom; Lee, Jin Hee; Lee, Dae Hyung; Kim, Yeongcheon; Shin, Soyeon; Kim, Dong-Min; Kim, Sung Yug; Kim, Taegyu; Yoon, Chang Won; Nam, Sangwook

doi:10.1016/j.jpowsour.2013.11.112

Cited by 34 publications

(11 citation statements)

References 22 publications

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“…[145,146] Evidence of the better prospects of the thermolysiso fN H 3 BH 3 are provided in the references cited in this paragraph.A nother proof is the unmanned aerial vehicle constructed by Nam and co-workers. [147,148] They showed that thermally induced dehydrogenation from a mixture of NH 3 BH 3 and glycol-based chemical promoter is an efficient method for H 2 production at 85-145 8C. Theg eneratorw as coupled to a2 00 W e polymer electrolyte membrane fuel cell, which allowed continuald riving of av ehicle for almost1h.…”

Section: Catalystsmentioning

confidence: 99%

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

Demirci

2018

Energy Tech

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At the beginning of the new millennium, hydrolysis of sodium borohydride (NaBH4) was presented as a promising on‐board technology to generate H2 for light‐duty vehicles. Years later, other B(−N)−H compounds (e.g., lithium borohydride (LiBH4) and ammonia borane (NH3BH3)) emerged as attractive alternatives whereas NaBH4 was struggling with several issues jeopardizing its implementation. Actually, efforts in the research and development of H2 generation by hydrolysis of B(−N)−H compounds have been intensive since the advent of NaBH4 almost 20 years ago. There may be a question with respect to this: What is the technological readiness of the promising hydrolytic B(−N)−H compounds? This Review aims at providing relevant elements in response to this question. In the first part, the most mature B(−N)−H compounds are discussed at length. In the second part, a survey of all other candidates is proposed. It is concluded that NaBH4 is the best hydrolytic B(−N)−H compound for marketing on a broad scale, but there are still key challenges to address.

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Section: Catalystsmentioning

confidence: 99%

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

Demirci

2018

Energy Tech

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“…Safe hydrogen storage and effective hydrogen generation on demand are of considerable importance in H 2 -PEMFC power supply systems. Although some research on hydrogen storage/generation methods for PEMFC-based UAVs has been conducted [16,17], a further enhanced energy density and highly efficient chemical hydride composite to reduce the weights of UAVs and effectively optimize PEMFC-based power pack systems are still required, especially for longer duration flights with UAVs [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Solid-Phase Hydrogen Storage Based on NH₃BH₃-SiO₂ Nanocomposite for Thermolysis

Jin

Shin

Jung

2019

Journal of Nanomaterials

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Current H2-proton exchange membrane fuel cell systems available for commercial applications employ heavy and high-risk physical hydrogen storage containers. However, these compressed or liquefied H2-containing cylinders are only suitable for ground-based electric vehicles, because although highly purified H2 can be stored in a cylinder, it is not compatible with unmanned aerial vehicles (UAVs), which require a lighter and more stable energy source. Here, we introduce a chemical hydrogen storage composite, composed of ammonia borane (AB) as a hydrogen source and various heterogeneous catalysts, to elevate the thermal dehydrogenation rate. Nanoscale SiO2 catalysts with a cotton structure dramatically increase the hydrogen evolution rate on demand, while simultaneously lowering the startup temperature for AB thermolysis. Results show that the dehydrogenation reaction of AB with a cotton-structured SiO2 nanocatalyst composite occurs below 90°C, the reaction time is less than a minute, and the hydrogen generation yield is over 12 wt%, with an activation energy of 63.9 kJ·mol-1.

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“…%o fH 2 can be recovered from AB below 200 8C, which makes AB attractive for chemical hydrogen storage and of particular interest for its application in portable powerp acks. [16][17][18][19][20][21] However, several deleterious gaseous by-products including ammonia, diborane( B 2 H 6 ), monomerica minoborane (BH 2 NH 2 ), and borazine (B 3 N 3 H 6 )a re released alongside hydrogen upon AB decomposition. [17,22,23] These species lead to poisoninga nd degradation of aP EM FC, [24] and therefore approaches to suppress these unwanted by-products must be investigated.…”

Section: Introductionmentioning

confidence: 99%

“…[61] Alternatively or additionally, an "external" filter could be applied to purify the H 2 supply to the FC.F or example,tetraethylene glycold imethylether (T4EGDE) acted as ap romoter and filter (combined with commercial AC)f or use in a power pack with AB pellets to drivea nu nmanned aerial vehicle (UAV )f or 57 min with fast load-following ability and rapid response time using a2 00-W e PEM FC. [21] As imilar system, additionallyu sing catalytic amounts of palladium nanoparticles (PdBPs), powered a2 00-W e PEM FC stack for 25 min. This H 2 generator was operated autothermally without an external heater by recycling waste heat produced duringA Bd ehydrogenation.…”

Section: Introductionmentioning

confidence: 99%

“…A remarkable 13 wt. % of H 2 can be recovered from AB below 200 °C, which makes AB attractive for chemical hydrogen storage and of particular interest for its application in portable power packs . However, several deleterious gaseous by‐products including ammonia, diborane (B 2 H 6 ), monomeric aminoborane (BH 2 NH 2 ), and borazine (B 3 N 3 H 6 ) are released alongside hydrogen upon AB decomposition .…”

Section: Introductionmentioning

confidence: 99%

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Ammonia Borane Based Nanocomposites as Solid‐State Hydrogen Stores for Portable Power Applications

et al. 2018

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Ammonia borane (AB) based nanocomposites are studied with the aim of developing a promising solid‐state hydrogen store that complies with the requirements of a modular polymer electrolyte membrane fuel cell (PEM FC) in a portable power pack system. AB‐carbon nanocomposites (prepared via ball milling or solution‐impregnation) demonstrate improved hydrogen release performance compared to AB itself in terms of onset temperature and hydrogen purity, while maintaining a gravimetric density of more than 5 wt. % H2. The most promising of these materials is an AB‐AC (activated carbon) composite, synthesized via solution impregnation with an optimal dehydrogenation temperature of 96 °C. When combined with an external nickel chloride filter downstream, no evolved gaseous by‐products can be detected above 100 ppb. The feasibility of an AB‐AC storage tank is further investigated using simulations in which the reaction rate and the hydrogen flux is found to be nearly constant as the temperature front propagated from the bottom to the top of the tank after initiation.

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Portable ammonia-borane-based H2 power-pack for unmanned aerial vehicles

Cited by 34 publications

References 22 publications

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

Solid-Phase Hydrogen Storage Based on NH₃BH₃-SiO₂ Nanocomposite for Thermolysis

Ammonia Borane Based Nanocomposites as Solid‐State Hydrogen Stores for Portable Power Applications

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Portable ammonia-borane-based H2 power-pack for unmanned aerial vehicles

Cited by 34 publications

References 22 publications

About the Technological Readiness of the H2 Generation by Hydrolysis of B(−N)−H Compounds

About the Technological Readiness of the H2 Generation by Hydrolysis of B(−N)−H Compounds

Solid-Phase Hydrogen Storage Based on NH3BH3-SiO2 Nanocomposite for Thermolysis

Ammonia Borane Based Nanocomposites as Solid‐State Hydrogen Stores for Portable Power Applications

Contact Info

Product

Resources

About

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

About the Technological Readiness of the H₂ Generation by Hydrolysis of B(−N)−H Compounds

Solid-Phase Hydrogen Storage Based on NH₃BH₃-SiO₂ Nanocomposite for Thermolysis