Catalytic and inhibitive effects of Pd and Pt decorated MWCNTs on the dehydrogenation behavior of LiAlH4

Tan, Chia Yen; Tsai, Wen Ta

doi:10.1016/j.ijhydene.2015.06.106

Cited by 14 publications

(15 citation statements)

References 34 publications

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“…Regarding the superior efficiency of NiCo@G, many factors obviously play a role. Such efficiency can either be attributed to the support (carbon) 29 or to a combination of properties associated with two different nanosized metals 37 38 or to both 19 39 40 . The mechanism need further investigations for the particular NiCo bimetallic nanoparticles encapsulated in graphene used here.…”

Section: Resultsmentioning

confidence: 99%

“…Among these methods, doping with catalysts is considered as an effective approach for the dehydrogenation of LiAlH 4 . Various catalysts have been investigated, such as Ti, Fe, Ni, V, Al, Al 3 Ti, TiF 3 , TiCl 4 , TiCl 3 , NiCl 2 , VCl 3 , AlCl 3 , FeCl 3 , TiCl 3 ·1/3AlCl 3 , TiH 2 , NiFe 2 O 4 , carbon nanotube and so on1516171819. Ni based catalysts have been widely explored.…”

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confidence: 99%

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NiCo nanoalloy encapsulated in graphene layers for improving hydrogen storage properties of LiAlH4

Jiao

Sun

et al. 2016

Sci Rep

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NiCo nanoalloy (4–6 nm) encapsulated in grapheme layers (NiCo@G) has been prepared by thermolysis of a 3D bimetallic complex CoCo[Ni(EDTA)]2·4H2O and successfully employed as a catalyst to improve the dehydrogenation performances of LiAlH4 by solid ball-milling. NiCo@G presents a superior catalytic effect on the dehydrogenation of LiAlH4. For LiAlH4 doped with 1 wt% NiCo@G (LiAlH4-1 wt% NiCo@G), the onset dehydrogenation temperature of LiAlH4 is as low as 43 °C, which is 109 °C lower than that of pristine LiAlH4. 7.3 wt% of hydrogen can be released from LiAlH4-1 wt% NiCo@G at 150 °C within 60 min. The activation energies of LiAlH4 dehydrogenation are extremely reduced by 1 wt% NiCo@G doping.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

NiCo nanoalloy encapsulated in graphene layers for improving hydrogen storage properties of LiAlH4

Jiao

Sun

et al. 2016

Sci Rep

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“…Recently, it has become a hot issue to construct highly efficient multicomplex dopants or co-dopants with synergetic effects [241,247,[255][256][257][258][259][260][261][262][263]. Bimetallic additives have been explored to promote the hydriding-dehydriding properties of hydrides [256,257].…”

Section: Adding Dopantsmentioning

confidence: 99%

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Huang

et al. 2019

Sci. China Mater.

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As typical high-capacity complex hydrides, lightweight hydrides have attracted intensive attention due to their high gravimetric and volumetric energy densities of hydrogen storage. However, lightweight hydrides also have high thermodynamic stability and poor kinetics, so they ususally require high hydrogen desorption temperature and show inferior reversibility under mild conditions. This review summarizes recent progresses on the endeavor of overcoming thermodynamic and kinetic challenges for Mg based hydrides, lightweight metal borohydrides and alanates. First, the current state, advantages and challenges for Mg-based hydrides and lightweight metal hydrides are introduced. Then, alloying, nanoscaling and appropriate doping techniques are demonstrated to decrease the hydrogen desorption temperature and promote the reversibility behavior in lightweight hydrides. Selected scaffolds materials, approaches for synthesis of nanoconfined systems and hydriding-dehydriding properties are reviewed. In addition, the evolution of various dopants and their effects on the hydrogen storage properties of lightweight hydrides are investigated, and the relevant catalytic mechanisms are summarized. Finally, the remaining challenges and the sustainable research efforts are discussed.

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“…The first two steps lead to a total amount of hydrogen released equal to 7.9 wt %, which could be attractive for practical applications, but the working temperatures and the desorption kinetics are still far from the practical targets. Several strategies have been applied in the last few years to overcome these limits, such as ball-milling and catalysts additions [35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51]. As described for Na alanate, Ti-based compounds such as TiO 2 , TiC, TiF 3 , TiN, and TiCl 3 [35,38,42] work in improving the desorption performance, as well as for the Li compound.…”

Section: Lithium Alanate Lialhmentioning

confidence: 99%

“…The high catalytic activity of TiCl 4 is due to the formation of a nano-or microcrystalline Al 3 Ti phase obtained by the reaction between TiCl 4 and LiAlH 4 upon milling [35]. C-materials, (including carbon nano fibers (CNFs), graphitic nano fibers (GNFs), single-walled carbon nanotubes (SWCNTs), and multi-walled carbon nanotubes (MWCNTs, [38,39,42,51]) and metal halides, such as VBr 3 , VCl 3 , ZrCl 4 , NbF 5 , NiCl 2 , and K 2 TiF 6 [36,[41][42][43][44] were claimed to be able to destabilize LiAlH 4 , significantly reducing its dehydrogenation temperature in the different steps. Zhou et al [36] demonstrated by temperature-programmed desorption (TPD) measurements that the onset dehydrogenation temperature of CeF 3 doped LiAlH 4 was sharply reduced by 90 [37], TiC [38,42], TiF 3 [43,47], TiO 2 [47], Nb 2 O 5 and Cr 2 O 3 [40], Fe [48], NbF 5 [41], NiCl 2 , and TiN [42,45] are added to LiAlH 4 , the first dehydrogenation step (4) is found to be exothermic.…”

Section: Lithium Alanate Lialhmentioning

confidence: 99%

Solid State Hydrogen Storage in Alanates and Alanate-Based Compounds: A Review

Milanese

Garroni

Gennari

et al. 2018

Metals

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The safest way to store hydrogen is in solid form, physically entrapped in molecular form in highly porous materials, or chemically bound in atomic form in hydrides. Among the different families of these compounds, alkaline and alkaline earth metals alumino-hydrides (alanates) have been regarded as promising storing media and have been extensively studied since 1997, when Bogdanovic and Schwickardi reported that Ti-doped sodium alanate could be reversibly dehydrogenated under moderate conditions. In this review, the preparative methods; the crystal structure; the physico-chemical and hydrogen absorption-desorption properties of the alanates of Li, Na, K, Ca, Mg, Y, Eu, and Sr; and of some of the most interesting multi-cation alanates will be summarized and discussed. The most promising alanate-based reactive hydride composite (RHC) systems developed in the last few years will also be described and commented on concerning their hydrogen absorption and desorption performance.

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Catalytic and inhibitive effects of Pd and Pt decorated MWCNTs on the dehydrogenation behavior of LiAlH4

Cited by 14 publications

References 34 publications

NiCo nanoalloy encapsulated in graphene layers for improving hydrogen storage properties of LiAlH4

NiCo nanoalloy encapsulated in graphene layers for improving hydrogen storage properties of LiAlH4

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Solid State Hydrogen Storage in Alanates and Alanate-Based Compounds: A Review

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