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Amendola, Steven C.; Petillo, Phillip J.; Lombardo, Robert M.; Sharp-Goldman, Stefanie L.; Janjua, M. Saleem; Spencer, Nicole C.; Kelly, Michael T.; Binder, Michael

doi:10.4271/2000-01-1541

Cited by 45 publications

(70 citation statements)

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“…Unlike reversible complex hydrides, however, chemical hydrides are intended as ''one-way'' single-use fuels: The left-over byproduct (spent material) must be removed from the vehicle for off-board regeneration. A few prominent examples of chemical hydride reactions include thermal decomposition of ammonia borane (NH 3 BH 3 ), 67 hydrolysis of sodium borohydride (NaBH 4 ), 68,69 and off-board reversible liquid organic carriers (e.g. N-ethyl carbazole).…”

Section: Chemical Hydridesmentioning

confidence: 99%

High capacity hydrogenstorage materials: attributes for automotive applications and techniques for materials discovery

et al. 2010

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Widespread adoption of hydrogen as a vehicular fuel depends critically upon the ability to store hydrogen on-board at high volumetric and gravimetric densities, as well as on the ability to extract/insert it at sufficiently rapid rates. As current storage methods based on physical means-high-pressure gas or (cryogenic) liquefaction-are unlikely to satisfy targets for performance and cost, a global research effort focusing on the development of chemical means for storing hydrogen in condensed phases has recently emerged. At present, no known material exhibits a combination of properties that would enable high-volume automotive applications. Thus new materials with improved performance, or new approaches to the synthesis and/or processing of existing materials, are highly desirable. In this critical review we provide a practical introduction to the field of hydrogen storage materials research, with an emphasis on (i) the properties necessary for a viable storage material, (ii) the computational and experimental techniques commonly employed in determining these attributes, and (iii) the classes of materials being pursued as candidate storage compounds. Starting from the general requirements of a fuel cell vehicle, we summarize how these requirements translate into desired characteristics for the hydrogen storage material. Key amongst these are: (a) high gravimetric and volumetric hydrogen density, (b) thermodynamics that allow for reversible hydrogen uptake/release under near-ambient conditions, and (c) fast reaction kinetics. To further illustrate these attributes, the four major classes of candidate storage materials-conventional metal hydrides, chemical hydrides, complex hydrides, and sorbent systems-are introduced and their respective performance and prospects for improvement in each of these areas is discussed. Finally, we review the most valuable experimental and computational techniques for determining these attributes, highlighting how an approach that couples computational modeling with experiments can significantly accelerate the discovery of novel storage materials (155 references).

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Section: Chemical Hydridesmentioning

confidence: 99%

High capacity hydrogenstorage materials: attributes for automotive applications and techniques for materials discovery

et al. 2010

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“…The hydrolysis of NaBH 4 in the absence of a catalyst does not yield in appreciable H 2 amounts, while the hydrolysis reaction in the presence of a suitable catalyst carries out significantly at room temperature [40,41]. The non-flammable process, generating 4 mol H 2 from 1 mol NaBH 4 , and the fact that hydrogen generation occurs in the presence of a selected catalyst are some advantages of H 2 generation from NaBH 4 [42].…”

Section: Introductionmentioning

confidence: 99%

One Pot Synthesis of Nickel Nanoparticles Stabilized on rGO/Polyethyleneimine Aerogel for the Catalytic Hydrogen Generation

2015

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In this study, one pot synthesis of nickel nanoparticles immobilized on reduced graphene oxidebranched polyethyleneimine (NiNPs@rGO-bPEI) aerogel is reported. To produce graphene-based supramolecular hydrogel, bPEI with a high density of amine groups was used as a cross-linking agent. The simultaneous co-reduction of GO and nickel ions was carried out using sodium borohydride (NaBH 4 ). The catalytic activity of the NiNPs@rGO-bPEI aerogel was investigated for hydrogen generation from the hydrolysis of NaBH 4 at room temperature. The effect of various amounts of bPEI as the linking agent on the structure of the aerogel product was investigated. Moreover, the influence of various amounts of nickel loading on the catalytic activity of NiNPs@rGO-bPEI was also studied. The ease of synthesis (only at one step), low cost, being environmentally benign, existence of nitrogen and nickel to have interaction with molecular hydrogen, and also the large surface area are the key features of the synthesized catalyst that makes it suitable for industrial applications.

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“…The self-hydrolysis reaction is inhibited by keeping NaBH 4 solutions at pH [13. At this pH, hydrogen release occurs only in the presence of specific catalysts, allowing the development of ''hydrogen on demand'' systems (HOD) [13,16,17]. Numerous catalysts have been investigated for NaBH 4 hydrolysis, with special attention devoted to heterogeneous catalysts based on Ru [6,7,16,[18][19][20][21][22][23][24], Co [25][26][27][28][29][30], Pt [9-11, 31, 32], Ni [33][34][35] and Pd [16,36,37]. Ni and Co catalysts have attracted considerable interest due to their lower cost compared to noble metals, whereas Ru is preferred for HOD applications despite its high price due to its elevated activity.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, sodium borohydride is the preferred option due to its high hydrogen storage capacity (10.8 wt%), non-flammability of its aqueous solution and ability to control hydrogen production. Moreover it is economically feasible in comparison to other hydrides [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Role of the Support and the Ru Precursor on the Performance of Ru/Carbon Catalysts Towards H2 Production Through NaBH4 Hydrolysis

et al. 2012

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This paper details NaBH 4 hydrolysis over Ru catalysts supported on activated carbons of different origin and morphology. The influence of two Ru precursors [RuCl 3 or Ru(NO)(NO 3 ) 3 ] was also investigated. It was found that the H 2 production rate strongly depends both on the support characteristics and the Ru precursor, the best performance being obtained using an activated carbon of vegetable origin as the support and Ru(NO)(NO 3 ) 3 as the precursor. It was concluded that the carbon type and the Ru precursor mutually affect the size of the supported Ru nanoparticles with the best combination being the one leading to Ru particles with diameters around 2.5 nm, which is regarded as optimal for NaBH 4 hydrolysis.

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SUV Powered by On-Board Generated H2

Cited by 45 publications

References 0 publications

High capacity hydrogenstorage materials: attributes for automotive applications and techniques for materials discovery

High capacity hydrogenstorage materials: attributes for automotive applications and techniques for materials discovery

One Pot Synthesis of Nickel Nanoparticles Stabilized on rGO/Polyethyleneimine Aerogel for the Catalytic Hydrogen Generation

Role of the Support and the Ru Precursor on the Performance of Ru/Carbon Catalysts Towards H2 Production Through NaBH4 Hydrolysis

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