Controlled synthesis of monodisperse Pd x Sn 100−x nanoparticles and their catalytic activity for hydrogen generation from the hydrolysis of ammonia-borane

Li, Yong; Dai, Yu; Xia, Tian

doi:10.1016/j.ijhydene.2015.05.172

Cited by 30 publications

(13 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pd is less expensive than Pt and Rh, but it is also modestly active . To minimize the usage of noble metals, the synthesis of bimetallic nanocatalysts with non‐noble metal elements has attracted considerable research interest in recent years . Additionally, appropriate supports have been employed to enhance the stability and dispersibility of metal NPs, such as carbon materials, mesostructured materials, metal oxides, metal‐organic frameworks, etc.…”

Section: Introductionmentioning

confidence: 97%

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃

Wang

Luo

et al. 2018

ChemCatChem

View full text Add to dashboard Cite

Highly dispersed Pd and PdNi nanoparticles (NPs) have been successfully immobilized on mesoporous carbon nitride (MCN) through a facile co‐reduction approach. The resulting Pd/MCN catalyst shows excellent catalytic performance for hydrogen release from an ammonia borane (AB) aqueous solution with a turnover frequency (TOF) value of 125 mol H2 mol metal−1 min−1 at room temperature, which is among the highest values for monometallic Pd‐based catalysts reported to date. The catalytic performance of the Pd NPs can be further enhanced by alloying with Ni or Co atoms. Among all the synthesized PdxNi100−x/MCN nanocomposites (NCs) with different Ni/Pd ratios, the Pd74Ni26/MCN catalyst exhibits the best catalytic performance with a TOF of 246.8 mol H2 mol metal−1 min−1. The high activity of Pd/MCN and Pd74Ni26/MCN are largely dependent on the features of the ultrafine metallic NPs immobilized by MCN, the interfacial interaction between the MCN matrix and metallic NPs, and the accessible open porous structure for mass transfer.

show abstract

Section: Introductionmentioning

confidence: 97%

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃

Wang

Luo

et al. 2018

ChemCatChem

View full text Add to dashboard Cite

show abstract

“…To a certain extent, the dispersed degree of RuCo and RuNi alloy NPs on the support MIL-110 with the increasing loading of Co and Ni can enhance the contact area between AB and metal NPs, and increase the number of active sites with the activated transient metal-H. However, when the excessive Co and Ni coverage on the surfaces of Ru, the active sites of Ru will be reduced [48], or there exist too strongly bindings between reactant AB and the surface of Ru, that will cause all available surface sites to be occupied and the catalyst to be poisoned [49]. Based on the above point, it is safe to infer that the increasing contact area between AB and metal NPs, the activated transient metal-H and the synergistic catalysis effects of alloying Ru with Co and Ni in the RuCo@MIL-110 and RuNi@MIL-110 catalysts account for the increasing catalytic performance with the rising molar ratio of Ru/Co and Ru/Ni from 1:0 to 1:1.…”

Section: Resultsmentioning

confidence: 99%

Bimetallic RuM (M=Co, Ni) Alloy NPs Supported on MIL-110(Al): Synergetic Catalysis in Hydrolytic Dehydrogenation of Ammonia Borane

Ning

Zhou

et al. 2018

Chinese Journal of Chemical Physics

View full text Add to dashboard Cite

By adjusting various Ru/M (M=Co, Ni) molar ratios, a series of highly dispersed bimetallic RuM alloy nanoparticles (NPs) anchored on MIL-110(Al) have been successfully prepared via a conventional impregnation-reduction method. And they are first used as heterogeneous catalysts for the dehydrogenation reaction of AB at room temperature. The results reveal that the as-prepared Ru 1 Co 1 @MIL-110 and Ru 1 Ni 1 @MIL-110 exhibit the highest catalytic activities in different RuCo and RuNi molar ratios, respectively. It is worthy of note that the turnover frequency (TOF) values of Ru 1 Co 1 @MIL-110 and Ru 1 Ni 1 @MIL-110 catalysts reached 488.1 and 417.1 mol H 2 min −1 (mol Ru) −1 and the activation energies (E a) are 31.7 and 36.0 kJ/mol, respectively. The superior catalytic performance is attributed to the bimetallic synergistic action between Ru and M, uniform distribution of metal NPs as well as bi-functional effect between RuM alloy NPs and MIL-110. Moreover, these catalysts exhibit favorable stability after 5 consecutive cycles for the hydrolysis of AB.

show abstract

“…The H 2 generation, then, depends on the metal catalyst, which is responsible for the breaking of the dative bond, the first step in the dehydrogenation of AB [5,6]. As suggested by Gao et al [20] for thermolysis, a hydrogen bond between the lone pair of the amine functionalized catalysts and the hydrogen of eNH on AB can modify the distribution of charges, which leads to the acceleration of the AB dehydrogenation. In this regard, it is well-known that aromatic amines, as PPD, are able to develop strong hydrogen-bonding interactions through their amine groups [45,46].…”

Section: Silica Support For the Immobilization Of Pd Nanoparticles And Aminesmentioning

confidence: 98%

Improving hydrogen production from the hydrolysis of ammonia borane by using multifunctional catalysts

Gil-San-Millán

Grau-Atienza

Johnson

et al. 2018

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

A novel multifunctional catalytic system has been developed for efficient hydrogen generation through the hydrolysis of ammonia borane. This system combines Pd NPs with acid sites and amines, which are both task-specific functionalities able to destabilize the N / B dative bond. The acidity of the support (zeolites of different structure and SiO 2 /Al 2 O 3 ratio) used to disperse the Pd NPs causes an increase in the hydrogen production rate. However, the positive effect of incorporating p-phenylenediamine in the catalyst is much more pronounced, causing a two-fold increase in the activity of the catalyst. The combined effect of the different functionalities yields excellent performance in the hydrolysis of ammonia borane, greatly enhancing the activity of the metal-based catalyst and reducing the activation energy of the catalyzed reaction.

show abstract

Controlled synthesis of monodisperse Pd x Sn 100−x nanoparticles and their catalytic activity for hydrogen generation from the hydrolysis of ammonia-borane

Cited by 30 publications

References 46 publications

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃

Bimetallic RuM (M=Co, Ni) Alloy NPs Supported on MIL-110(Al): Synergetic Catalysis in Hydrolytic Dehydrogenation of Ammonia Borane

Improving hydrogen production from the hydrolysis of ammonia borane by using multifunctional catalysts

Contact Info

Product

Resources

About

Controlled synthesis of monodisperse Pd x Sn 100−x nanoparticles and their catalytic activity for hydrogen generation from the hydrolysis of ammonia-borane

Cited by 30 publications

References 46 publications

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH3BH3

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH3BH3

Bimetallic RuM (M=Co, Ni) Alloy NPs Supported on MIL-110(Al): Synergetic Catalysis in Hydrolytic Dehydrogenation of Ammonia Borane

Improving hydrogen production from the hydrolysis of ammonia borane by using multifunctional catalysts

Contact Info

Product

Resources

About

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃

Mesoporous Carbon Nitride Supported Pd and Pd‐Ni Nanoparticles as Highly Efficient Catalyst for Catalytic Hydrolysis of NH₃BH₃