Amineborane Based Chemical Hydrogen Storage - Final Report

Sneddon, Larry G.

doi:10.2172/1011765

Cited by 12 publications

(25 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1, [7][8][9][10] For example, the DOE recently decided to no longer pursue the use of NaBH 4 as a H 2 storage material, in part because of inefficient regeneration. We thus endeavored to find an energy-efficient regeneration process for the spent fuel from H 2 -depleted AB.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Efficient Regeneration of Partially Spent Ammonia Borane Fuel

et al. 2009

View full text Add to dashboard Cite

mentioning

confidence: 99%

“…Representative structure of polyborazylene (PB). [8] To transform the products of Scheme 2 into AB, a reductant is required. Bu 3 SnH was judged to be a good starting point, as the reagent is commercially available and a literature report suggested a possible Bu 3 SnH regeneration method by decarboxylation of a tin formate.…”

mentioning

confidence: 99%

Efficient Regeneration of Partially Spent Ammonia Borane Fuel

et al. 2009

View full text Add to dashboard Cite

“…500°C, above which, evidence for boron nitride is seen [55] ) lead to products of the type (H 2 NBH 2 ) n and/or (HNBH) n . Similar strategies for regenerating AB from mixtures of these products have been proposed by Sneddon [56,57] and Mertens [58] that do not depend on the nature of (H 2 NBH 2 ) n or (HNBH) n by using an acid (HX) to form B-X bonds and then conversion of those B- Table 1. Calculated digestion enthalpies of borazine (gas-phase: B3LYP/DZVP2, cc-pVDZ-PP for tin).…”

Section: Polyborazylenementioning

confidence: 91%

Ammonia Borane as a Hydrogen Carrier: Dehydrogenation and Regeneration

2010

View full text Add to dashboard Cite

Interest in sustainable non‐hydrocarbon‐based fuels for transportation has grown as the realization that the supply of fossil fuels is limited and the deleterious environmental effects of burning them has come into public focus. The use of hydrogen (H2) has been proposed as an alternative, but its use in pure form is undesirable due to the high pressures or low temperatures required to store useful quantities. Approaches to ameliorate this issue, which stem from the low volumetric energy density of H2, include the pursuit of sorbents capable of containing H2 in greater density than liquid H2 at reasonable temperatures and pressures, metal hydrides such as NaBH4, and chemical hydrides such as ammonia borane (AB, NH3BH3). AB contains 19.6 wt.‐% H2, which is well suited to practical applications, but issues with extracting the optimal quantities of H2 at reasonable temperatures and at useful rates as well as recycling of the spent fuel back into AB with good efficiency and reasonable cost remain to be solved. These problems are inextricably intertwined, as the needs of the regeneration process dictate which catalysts are used (i.e. what kind of spent fuel is generated). This Microreview focuses on recent developments in transition metal complexes for the catalytic dehydrogenation of AB. Neither solvolysis of AB nor thermolysis of AB in the absence of a catalyst are covered in this review.

show abstract

“…Numerous examples of catalytically amended AB were demonstrated over the course of the CHSCoE. Homogenous catalysis efforts included Lewis acids [83], non-nucleophilic bases (i.e., Proton Sponge) [84], and various transition metals [83,[85][86][87][88]. One of the most effective homogenous catalysts was demonstrated by Baker et al [89] using nickel N-heterocyclic carbene (Ni-NHC) complex generated through an in situ reaction with bis(cyclooctadiene)Ni(0).…”

Section: Ammonia Boranementioning

confidence: 99%

“…Sneddon et al demonstrated the unique attributes of ILs for activating AB by reacting 1-butyl-3-methylimidazolium chloride (bmimCl) with AB (50:50 wt.%) at 358 K [31,91]. The AB-IL mixture exhibited no induction period and released 1.0 H 2 -equivalent in 67 min and 2.2 H 2 -equivalents total over 330 min which compares very favorably to thermolysis of AB at the same temperature releasing ~0.8 H 2 -equivalents after 360 min and an 180 min induction period.…”

Section: Ammonia Boranementioning

confidence: 99%

Moderate Temperature Dense Phase Hydrogen Storage Materials within the US Department of Energy (DOE) H2 Storage Program: Trends toward Future Development

McWhorter

O’Malley

Adams³

et al. 2012

Crystals

View full text Add to dashboard Cite

Hydrogen has many positive attributes that make it a viable choice to augment the current portfolio of combustion-based fuels, especially when considering reducing pollution and greenhouse gas (GHG) emissions. However, conventional methods of storing H 2 via high-pressure or liquid H 2 do not provide long-term economic solutions for many applications, especially emerging applications such as man-portable or stationary power. Hydrogen storage in materials has the potential to meet the performance and cost demands, however, further developments are needed to address the thermodynamics and kinetics of H 2 uptake and release. Therefore, the US Department of Energy (DOE) initiated three Centers of Excellence focused on developing H 2 storage materials that could meet the stringent performance requirements for on-board vehicular applications. In this review, we have summarized the developments that occurred as a result of the efforts of the Metal

show abstract

Amineborane Based Chemical Hydrogen Storage - Final Report

Cited by 12 publications

References 61 publications

Efficient Regeneration of Partially Spent Ammonia Borane Fuel

Efficient Regeneration of Partially Spent Ammonia Borane Fuel

Ammonia Borane as a Hydrogen Carrier: Dehydrogenation and Regeneration

Moderate Temperature Dense Phase Hydrogen Storage Materials within the US Department of Energy (DOE) H2 Storage Program: Trends toward Future Development

Contact Info

Product

Resources

About