Rh–M (M: Co, Cu, and Fe) nanoclusters as highly efficient and durable catalysts for the methanolysis of ammonia borane

Abay, Bayram; Rakap, Murat

doi:10.1039/d0cy01422b

Cited by 15 publications

(12 citation statements)

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“…Transition metal nanoparticles have been commonly used as catalysts to generate pure hydrogen gas for fuel cells from the boron‐nitrogen containing compounds over the last fifteen years [47,48,49] . In the literature, few articles can be found to explain the plausible mechanism of hydrogen liberation reactions especially for the parent ammonia borane (AB) molecule [50,51] . However, there is no mechanistic report for the hydrogen generation from EDAB as expected since it was started to be newly studied.…”

Section: Resultsmentioning

confidence: 99%

“…[47,48,49] In the literature, few articles can be found to explain the plausible mechanism of hydrogen liberation reactions especially for the parent ammonia borane (AB) molecule. [50,51] However, there is no mechanistic report for the hydrogen generation from EDAB as expected since it was started to be newly studied. Hence, it is difficult to offer any catalytic pathway for EDAB hydrolysis with the present data in the literature.…”

Section: Chemistryselectmentioning

confidence: 99%

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Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane

Tunç

Rakap

2022

ChemistrySelect

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Here, the first ever preparation of some series of nanoceria‐supported Ru‐based nanoparticles with different compositions (RuxM100‐x@NC, M: Co, Ni, Pd) and their use as highly active catalysts to liberate hydrogen gas from hydrolysis of ethane 1,2‐diamine borane (EDAB) is reported. For the preparation of totally fifteen RuxM100‐x@NC nanoparticles with different compositions, the related metal cations are first supported on nanoceria surfaces by wet impregnation method in aqueous solution. Then, Ru3+‐M2+‐exchanged nanoceria samples are synchronously reduced during hydrolysis reaction of EDAB to form corresponding RuxM100x@NC nanoparticles meanwhile the formed nanoparticles catalyze the same reaction. RuxM100x@NC nanoparticles are identified by inductively coupled plasma‐optical emission spectroscopy (ICP‐OES), powder X‐ray diffraction (PXRD), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), and BET surface area techniques. They provide quiet high catalytic activities in the hydrolysis reaction of EDAB. Among them, Ru20Pd80@NC nanoparticles are by far the best one up to date with a TOF value of 608.49 min−1 at 25 °C.

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Section: Resultsmentioning

confidence: 99%

Section: Chemistryselectmentioning

confidence: 99%

Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane

Tunç

Rakap

2022

ChemistrySelect

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“…In order to further boost the hydrogen-producing performance of catalytic AB methanolysis, some scholars propose the synthesis scheme of polymetallic catalysts, including bimetallic and multimetallic catalysts. − …”

Section: Hydrogen Production From Catalytic Ammonia Borane Methanolysismentioning

confidence: 99%

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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“…Methane, the primary component of natural gas, shale gas, and combustible ice, is one of the most abundantly available hydrocarbon feedstock, [1][2][3] the efficient conversion of methane into value-added and energy-dense chemicals, has gained considerable attention due to the increase of methane availability worldwide. [4][5][6][7][8] Meanwhile, methane is the second most relevant greenhouse gas, which as global warming potential is 25 times higher than that of CO 2 . [9] Therefore, it is highly desired to develop efficient route for the functionalization of methane.…”

Section: Introductionmentioning

confidence: 99%

Insights into Fe Species Structure‐Performance Relationship for Direct Methane Conversion toward Oxygenates over Fe‐MOR Catalysts

et al. 2022

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Direct oxidation of methane to value-added products under mild conditions remains a grand challenge due to the problem of selective CH 4 activation. Here we report a Fe-MOR-F catalyst prepared via freeze-drying method, indicating excellent catalytic performance for the direct partial oxidation of methane using H 2 O 2 under mild conditions. Various characterizations including XRD, NH 3 -TPD, H 2 -TPR, UV-Vis, XPS, and EPR studies revealed that Fe-MOR-F catalyst possesses more highly dispersed monomeric and dimeric iron species, which is strongly correlated to its high catalytic activity for direct methane oxidation. The DFT calculations indicate the highly dispersed monomeric and dimeric iron species can effectively homoge-nize H 2 O 2 into active hydroxyl groups, while iron clusters can decompose H 2 O 2 into inactive O 2 . The EPR experiments show more •OH was generated on Fe-MOR-F catalyst, which is in line with DFT calculation results. These structural characteristics endow Fe-MOR-F catalyst with superior catalytic performance for direct methane oxidation in terms of oxygenates yield (9.8 mol kg cat À 1 h À 1 ) and selectivity (91.8 %) at 80 °C. This work not only highlights the excellent catalytic performance of methane activation on the highly dispersed monomeric and dimeric iron species, but also promotes the potential application by freeze-drying method for the preparation of the highly dispersed active species.

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Rh–M (M: Co, Cu, and Fe) nanoclusters as highly efficient and durable catalysts for the methanolysis of ammonia borane

Abstract: Herein, we report preparation, characterization, and employment of hydroxyapatite-supported rhodium-based Rh-M (RhCo, RhCu, RhFe) nanoclusters as cost-effective, highly efficient and reusable catalysts for hydrogen evolution from ammonia borane methanolysis. Rh-M@HA...

Cited by 15 publications

References 49 publications

Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane

Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane

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

Insights into Fe Species Structure‐Performance Relationship for Direct Methane Conversion toward Oxygenates over Fe‐MOR Catalysts

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