A Bunch‐like Copper Oxide Nanowire Array as an Efficient, Durable, and Economical Catalyst for the Methanolysis of Ammonia Borane

Cui, Liang; Cao, Xueying; Sun, Xuping; Yang, Wenrong; Liu, Jingquan

doi:10.1002/cctc.201701317

Cited by 32 publications

(5 citation statements)

References 45 publications

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“…Among them, ammonia borane (NH 3 BH 3 , AB) is considered to be an efficient carrier, with superb stability in aqueous and methanol solutions, a high volumetric density of 146 g L −1 , and a hydrogen capacity of 196 g kg −1 . Hydrogen stored in AB can be released by either thermal decomposition or solvolysis . Considering the high energy input of thermal decomposition (>100 °C), much research has been focused on the hydrolytic dehydrogenation of AB [Eq.…”

Section: Methodsmentioning

confidence: 99%

Hollow Nickel–Cobalt Layered Double Hydroxide Supported Palladium Catalysts with Superior Hydrogen Evolution Activity for Hydrolysis of Ammonia Borane

et al. 2018

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Although ammonia borane (NH 3 BH 3 ,A B) has been identified as an excellent hydrogen-storage medium, the development of a highly active catalystt hat can function under mild conditions for controllable hydrogen release is still ag reat challenge. The synergistic effect induced by interactions between metal nanoparticles and asupport has been widely applied in thermocatalytic conversion processes. In this work, Pd nanoparticles (NPs) highly dispersed on hollow NiCol ayered double hydroxide (LDH) wered esigned for efficient hydrogen generation from AB at room temperature. During the hydrolytic dehydrogenation of AB, Pd/a-LDH and Pd/b-LDHe xhibited catalytic activities with total turnover frequency (TOF) values of 49.5 and 28.1 min À1 with activation energy (E a )v alues of 20.56 and 37.56 kJ mol À1 ,r espectively,a t2 98 K; thus, these catalysts outperform mostP d-based catalysts. The improved catalytic effect was attributedt ot he controllable size and fine distribution of the Pd NPs and the collaborative effect provided by the hydroxide of a-LDH and the intercalated anions( HO À ). This catalysts design principle can be easily transferred to other catalyst research fields for energy-conversion and -storage purposes.Hydrogen is the simplest and cleanest fuel carrier and is usually utilized in af uel-cell setup to generate power;i tp roduces only water and heat as byproducts. [1,2] Hydrogenp roduces the highest energy per mass amonga ny fuel. Unfortunately,o wing to its low volumetric density under ambient conditions, the major obstacle that prevents the building of hydrogen economy is the development of advanced storagem ethods that have the potentialf or highere nergy density per volume. [3][4][5] Subsequently,i ti sa lso important to develop technologiest hat can release hydrogen in ac ontrollable fashion under mild conditions from said medium. Chemical hydrides are promising candidates owing to their high gravimetric hydrogen densities and favorable thermodynamic and kinetic properties towards dehydrogenation. [6,7] Among them, ammonia borane (NH 3 BH 3 , AB) is considered to be an efficient carrier,w ith superbstability in aqueous and methanol solutions, ah igh volumetric density of 146 gL À1 ,a nd ah ydrogen capacity of 196 gkg À1 . [8,9] Hydrogen stored in AB can be releasedbyeither thermaldecomposition or solvolysis. [10,11] Considering the high energy input of thermald ecomposition (> 100 8C), much research has been focused on the hydrolytic dehydrogenationo fA B[ Eq. (1)] in the presence of metal catalysts under ambient conditions. [12] Hundreds of metal catalysts have been exploited to promote the efficiency of AB dehydrogenation. [13] Amongt hem, Pd nanoparticle (NP)-based catalytic systems serve as favorable catalysts for the hydrolysiso fA Bb ecause they are cheaper than other precious metals and have higher activity than nonnoble metal catalysts. [14,15] It is well known that although smallsized metal NPs can provide more catalytic active sites, such NPs usuallys uffer from deactivation and inst...

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Section: Methodsmentioning

confidence: 99%

Hollow Nickel–Cobalt Layered Double Hydroxide Supported Palladium Catalysts with Superior Hydrogen Evolution Activity for Hydrolysis of Ammonia Borane

et al. 2018

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“…Since then, more and more researchers have studied the catalysts for hydrogen production from AB methanolysis, and a large number of research results have been reported. In the study of AB methanolysis for hydrogen production, the main focus is on the study of active metal and support of high activity catalyst, optimization of the catalytic hydrogen production system, and so on. − …”

Section: Hydrogen Production From Catalytic Ammonia Borane Methanolysismentioning

confidence: 99%

Review on Hydrogen Production from Catalytic Ammonia Borane Methanolysis: Advances and Perspectives

Yao

Wang

et al. 2022

Energy Fuels

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Hydrogen is globally recognized clean energy carrier, and hydrogen energy plays the important role in energy choice for developing the new low-carbon society. Ammonia borane (NH 3 BH 3 , AB) has been considered as an ideal hydrogen storage material for portable hydrogen production, because of its characteristics of high hydrogen content (19.6 wt %), nontoxicity, stability under ambient conditions, and excellent hydriding and dehydriding properties. The technology of ammonia borane methanolysis seems to be the most safe, effective, and convenient technology route for portable hydrogen production applications, because of its mild reaction conditions and low temperature suitability. In this Review, the properties and synthesis method of AB are introduced briefly, and the method and mechanism of AB pyrolysis and hydrolysis for hydrogen production are described briefly, the mechanism of hydrogen production by AB methanolysis is derived subsequently. The research status development progress of high efficiency catalyst in AB methanolysis then are significantly reviewed. In the end, the proposals are noted that the biggest challenge in the practical application of AB is its regeneration, which means how to make the byproducts of AB methanolysis directly hydrogenated to regenerate AB efficiently and economically. This Review provides guidance and reference for the research and industrial application of hydrogen production technology of AB, especially the technology of methanolysis for hydrogen production.

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“…278 After that, bunch-like copper oxide nanowire arrays on copper foam (b-CuO NA/CF) were prepared via a simple oxidation process and they behaved as efficient pre-catalysts (13.3 min −1 ) for methanolytic dehydrogenation of NH 3 BH 3 . 279 Recently, Sun's research group found that CuNi alloy NPs deposited on graphene (CuNi/G) showed excellent catalytic activity (49.1 min −1 ) and recyclability toward the methanolysis of NH 3 BH 3 . 280 More recently, a noble-metal-free Cu/Co(OH) 2 nanohybrid pre-catalyst was fabricated by Chen and coworkers via a feasible in situ method.…”

Section: Catalysts For Nh 3 Bh 3 Methanolysismentioning

confidence: 99%

Noble-metal-free nanocatalysts for hydrogen generation from boron- and nitrogen-based hydrides

Yao

Ding

2020

Inorg. Chem. Front.

205

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A Bunch‐like Copper Oxide Nanowire Array as an Efficient, Durable, and Economical Catalyst for the Methanolysis of Ammonia Borane

Cited by 32 publications

References 45 publications

Hollow Nickel–Cobalt Layered Double Hydroxide Supported Palladium Catalysts with Superior Hydrogen Evolution Activity for Hydrolysis of Ammonia Borane

Hollow Nickel–Cobalt Layered Double Hydroxide Supported Palladium Catalysts with Superior Hydrogen Evolution Activity for Hydrolysis of Ammonia Borane

Review on Hydrogen Production from Catalytic Ammonia Borane Methanolysis: Advances and Perspectives

Noble-metal-free nanocatalysts for hydrogen generation from boron- and nitrogen-based hydrides

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