Hydrogen production from the methanolysis of ammonia borane by Pd-Co/Al 2 O 3  coated monolithic catalyst

Murathan, Hatice Begüm; Özkan, Gülay; Akkuş, Meryem Sena; Özgür, Derya Öncel; Özkan, Göksel

doi:10.1016/j.ijhydene.2018.01.038

Cited by 20 publications

(10 citation statements)

References 24 publications

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“…The reader may refer to a recent review article [148]. A variety of nanostructured transition metal catalysts (also called nanocatalysts) have been developed, with a special focus on copper [149][150][151][152], cobalt [153] and cobalt-palladium combinations [154,155], nickel [153,156,157], palladium [158][159][160], rhodium [161][162][163][164] and ruthenium [165][166][167].…”

Section: In Methanolmentioning

confidence: 99%

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Demirci

2020

Energies

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Ammonia borane H3N−BH3 (AB) was re-discovered, in the 2000s, to play an important role in the developing hydrogen economy, but it has seemingly failed; at best it has lagged behind. The present review aims at analyzing, in the context of more than 300 articles, the reasons why AB gives a sense that it has failed as an anodic fuel, a liquid-state hydrogen carrier and a solid hydrogen carrier. The key issues AB faces and the key challenges ahead it has to address (i.e., those hindering its technological deployment) have been identified and itemized. The reality is that preventable errors have been made. First, some critical issues have been underestimated and thereby understudied, whereas others have been disproportionally considered. Second, the potential of AB has been overestimated, and there has been an undoubted lack of realistic and practical vision of it. Third, the competition in the field is severe, with more promising and cheaper hydrides in front of AB. Fourth, AB has been confined to lab benches, and consequently its technological readiness level has remained low. This is discussed in detail herein.

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Section: In Methanolmentioning

confidence: 99%

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Demirci

2020

Energies

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“…[4] Various homogeneousa nd heterogeneousm etal catalysts, including metal cations, monometallic nanoparticles (NPs), alloys, and core-shell catalysts, have been studied for catalytic AB methanolysis. [5] Among them, supported Rh-and Ru-based catalysts have been regarded as the more active ones compared with other metal-based catalysts because of their welldispersed catalytic active sites on the support (TableS1i nt he Supporting Information). [6] For instance, Özkara nd Özhava reported the synthesis of nanosilica-stabilized Rh nanoparticles (NPs) as an efficient catalyst for AB methanolysis with at urnover frequency( TOF) of 168 mol H 2 (mol Rh min) À1 .…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh Catalytic Activity of l‐Proline‐Functionalized Rh Nanoparticles for Methanolysis of Ammonia Borane

Luo

Cheng

et al. 2018

ChemSusChem

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The synthesis of ultrafine and well‐distributed rhodium nanoparticles (NPs) with high efficiency toward methanolysis of ammonia borane (AB) is crucially important but challenging. A facile approach has been developed for synthesizing ultrafine and uniform Rh NPs deposited on carbon by using the small soluble organic molecule (SOM) of l‐proline (PRO) as capping agent (Rh‐PRO/C). The enrichment of N,O‐coordination sites for the metal precursor by using PRO was found to be the key to the synthesis Rh‐PRO/C. The as‐prepared Rh‐PRO/C showed high catalytic activity for ammonia borane methanolysis with the highest total turnover frequency (TOF) of 1035 molnormalH2 (molRh min)−1 under basic conditions, which was three times higher than that of the state‐of‐the‐art Rh‐based catalysts. The excellent catalytic performance of Rh‐PRO/C was ascribed to the well‐dispersed Rh NPs and the PRO‐functionalized metal surface, which can provide more active sites for the reaction. The merit of size‐controlled synthesis combined with metal NP surface modification by SOMs is likely to be beneficial in various catalytic fields.

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“…3 Among these, the AB-based technique is the most promising for portable systems. 4 AB is more stable under ambient conditions and also a higher stoichiometric content of hydrogen (19.6 wt%). It is also highly soluble in water (33.6 g/100 mL) at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Methanolysis of ammonia borane using binder‐free hierarchical Co@Ni metal‐organic framework nanocolumn arrays catalyst for hydrogen generation

Dharman

Prabu

Chiang

et al. 2022

Intl J of Energy Research

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Summary Ammonia borane (AB) is a potential material for chemical hydrogen storage because of its outstanding stability, high hydrogen density, and the development of highly effective hierarchical catalysts for AB hydrolysis. Herein, the hierarchical Co@Ni metal‐organic framework (MOF) nanocolumn arrays (NCAs) on nickel foam (NF) were fabricated through a simple hydrothermal reaction, and the prepared catalysts were characterized using different techniques. The hierarchical Co@Ni‐MOFNCA/NF acts as a catalyst for AB methanolysis for hydrogen production. The catalysts exhibited outstanding performance towards AB methanolysis with the TOF of TOF of 20.54 mol H2 mol catalyst−1 min−1. As a result, the activation energy of the Co@Ni‐MOF NCA catalyst is 39.72 kJ mol−1 which is compared with some commercial solid support materials such as Al2O3 and AC. Additionally, the effects of nanocatalyst loading and temperatures were studied for the Co@Ni‐MOF NCA catalyst. Further, a complete investigation proposes that the outstanding catalytic performance of the Co@Ni‐MOF NCA catalyst could be attributed to the synergy between Co and Ni‐MOF NCA.

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Hydrogen production from the methanolysis of ammonia borane by Pd-Co/Al 2 O 3 coated monolithic catalyst

Cited by 20 publications

References 24 publications

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Ultrahigh Catalytic Activity of l‐Proline‐Functionalized Rh Nanoparticles for Methanolysis of Ammonia Borane

Methanolysis of ammonia borane using binder‐free hierarchical Co@Ni metal‐organic framework nanocolumn arrays catalyst for hydrogen generation

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