Nanodiamond supported Ru nanoparticles as an effective catalyst for hydrogen evolution from hydrolysis of ammonia borane

Fan, Guangyin; Liu, Qingqing; Tang, Daomei; Li, Xiaojing; Bi, Jian; Gao, Daojiang

doi:10.1016/j.ijhydene.2015.10.083

Cited by 90 publications

(24 citation statements)

References 45 publications

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“…The reaction takes place is expressed as [22,23] NH 3 BH 3 + 2H 2 O → NH + 4 + BO 2− + 3H 2 (1) The development of a proper catalyst with high catalytic performance for hydrogen release by means of AB hydrolysis has prompted significant research attention over the past decades. Noble metals, such as Pt [24], Pd [25], Ag [26], and Ru [27][28][29] based catalysts, can promptly generate hydrogen from AB and hence have been touted as greatly effective catalysts. However, the scarcity of resources and high cost of noble metals are the great challenges for their extensive application.…”

Section: Introductionmentioning

confidence: 99%

Ru Nanoparticles Embedded in Cubic Mesoporous Silica SBA-1 as Highly Efficient Catalysts for Hydrogen Generation from Ammonia Borane

et al. 2020

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Cubic mesoporous silica SBA-1 functionalized with carboxylic acid (-COOH), namely S1B-C10, is used as a support to fabricate and confine Ru nanoparticles (NPs). The uniformly dispersed organic functional groups in SBA-1 are beneficial in attracting Ru cations, and as a result, homogenously distributed small sized Ru NPs are formed within the mesopores. The prepared Ru@S1B-C10 is utilized as a catalyst for H2 generation from the hydrolysis of ammonia borane (AB). The Ru@S1B-C10 catalyst demonstrates high catalytic activity for H2 generation (202 mol H2 molRu min−1) and lower activation energy (24.13 kJ mol−1) due to the small sized Ru NPs with high dispersion and the support’s interconnected mesoporous structure. The nanosized Ru particles provide abundant active sites for the catalytic reaction to take place, while the interconnected porous support facilitates homogenous transference and easy dispersal of AB molecules to the active sites. The catalyst demonstrates good recycle ability since the accumulation and leaking of NPs throughout catalysis can be effectively prevented by the support.

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Section: Introductionmentioning

confidence: 99%

Ru Nanoparticles Embedded in Cubic Mesoporous Silica SBA-1 as Highly Efficient Catalysts for Hydrogen Generation from Ammonia Borane

et al. 2020

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“…[2] However,s erious electrode polarization results in high overpotential for the hydrogen evolution reaction( HER) [3] and consequently consumption of more electricale nergy.T hus, developing active catalysts to reduce the overpotential for HER and to accelerate electrochemicalw ater splitting for hydrogen production is of significant importance. [5] Therefore, developmento fh ighly active catalysts for hydrogen evolution from both electrochemical water splitting and catalytic hydrolysis of AB are expected to meet the requirement of industrial applications. [5] Therefore, developmento fh ighly active catalysts for hydrogen evolution from both electrochemical water splitting and catalytic hydrolysis of AB are expected to meet the requirement of industrial applications.…”

Section: Introductionmentioning

confidence: 99%

“…[4] In addition, hydrogen generation from catalytic hydrolysis of chemical hydrides has been well identifieda s another promising strategy.A mongt he chemicalh ydrides, ammonia borane (AB) has captured more attentiono wing to its featured advantages of high theoretical hydrogen capacity,e xcellent solubility and stability, and environmental safety, etc. [5] Therefore, developmento fh ighly active catalysts for hydrogen evolution from both electrochemical water splitting and catalytic hydrolysis of AB are expected to meet the requirement of industrial applications. [6] Compared with widely investigated earth-abundant non-precious electrocatalysts, Pt-based materials are stillt he state-ofthe-artc atalysts for hydrogen generation from electrolytic water splitting owing to their highc atalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Towards High‐Efficiency Hydrogen Production through in situ Formation of Well‐Dispersed Rhodium Nanoclusters

Mei

et al. 2018

ChemSusChem

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Rh-based materials have emerged as potential candidates for hydrogen revolution from electrolyzing water or ammonia borane (AB) hydrolysis. Nevertheless, most of the catalysts still suffer from the complex synthetic procedures combined with limited catalytic activity. Additionally, the facile syntheses of Rh catalysts with high efficiencies for both electrochemical water splitting and AB hydrolysis are still challenging. Herein, we develop a simple, green, and mass-producible ion-adsorption strategy to produce a Rh/C pre-catalyst (pre-Rh/C). The ultrafine and clean Rh nanoclusters immobilized on carbon are achieved via the in situ reduction of the pre-Rh/C during the hydrogen-evolution process. The resulting in situ Rh/C catalyst presents an outstanding electrocatalytic performance with low overpotentials of 8 and 30 mV at 10 mA cm in 1.0 m KOH and 0.5 m H SO , respectively, outperforming the state-of-the-art Pt catalysts. Furthermore, the in situ Rh/C is also highly active for AB hydrolysis to produce hydrogen with a high turnover frequency of 1246 mol mol min at 25 °C. The in situ-formed ultrafine Rh nanoclusters are responsible for the observed superior catalytic performance. This facile in situ strategy to realize a highly active catalyst shows promise for practical applications.

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“…In previous studies, researchers focused on immobilizing bimetallic or trimetallic alloy NPs in matrixes to improve the catalysis of AB hydrolysis through the synergistic effects of metal NPs, such as CuNi/MIL-101, 17 RuCo/MIL-96, 18 RuCuCo/MIL-101, 19 and Ag 30 Pb 70 /C. 20 However, no studies have described the impact of amine-functionalized MOFs on AB hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Amine-functionalized MIL-53(Al) with embedded ruthenium nanoparticles as a highly efficient catalyst for the hydrolytic dehydrogenation of ammonia borane

2018

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Well-dispersed ruthenium nanoparticles (Ru NPs) are immobilized within the pores of amine-functionalized MIL-53 via an in situ impregnation-reduction method. The resulting Ru/MIL-53(Al)-NH 2 catalyst exhibits superior catalytic performance for the dehydrogenation of ammonia borane (AB) at ambient temperature relative to the Ru/MIL-53(Al) catalyst; it has a turnover frequency (TOF) of 287 mol H 2 min À1 (mol Ru) À1and an activation energy (E a ) of 30.5 kJ mol À1 . The amine groups present in the MIL-53(Al)-NH 2 framework facilitate the formation and stabilization of ultra-small Ru NPs by preventing their aggregation. Additionally, the Ru/MIL-53(Al)-NH 2 catalyst exhibits satisfactory durability and reusability:72.4% and 86.3% of the initial catalytic activity was maintained after the fifth successive cycle of the hydrolytic dehydrogenation of AB in the two respective tests.

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Nanodiamond supported Ru nanoparticles as an effective catalyst for hydrogen evolution from hydrolysis of ammonia borane

Cited by 90 publications

References 45 publications

Ru Nanoparticles Embedded in Cubic Mesoporous Silica SBA-1 as Highly Efficient Catalysts for Hydrogen Generation from Ammonia Borane

Ru Nanoparticles Embedded in Cubic Mesoporous Silica SBA-1 as Highly Efficient Catalysts for Hydrogen Generation from Ammonia Borane

Towards High‐Efficiency Hydrogen Production through in situ Formation of Well‐Dispersed Rhodium Nanoclusters

Amine-functionalized MIL-53(Al) with embedded ruthenium nanoparticles as a highly efficient catalyst for the hydrolytic dehydrogenation of ammonia borane

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