Recent advances in liquid-phase chemical hydrogen storage

A review on the catalysts used for hydrogen production from ammonia borane

Efficient hydrogen generation and storage is an essential prerequisite of a future hydrogen economy. Boron hydrides feature high volumetric density and high hydrogen generation, making them a promising candidate for chemical hydrogen storage. The development of efficient non-noble metal catalysts for on-demand hydrogen release through boron-hydride hydrolysis under mild conditions has received extensive interest. Transition-metal boride/phosphide based materials are attractive due to their advantages of earth-abundant elements, considerable catalytic activity, high stability and low cost. In this review, we summarize the recent progress in the synthesis of transition metal boride/phosphide based catalysts and their application in catalyzing hydrolysis of boron hydrides. We highlight a number of strategies to enhance the catalytic efficiency and stability of metal boride/phosphide catalysts, such as component optimizing, structure tailoring and substrate engineering. Remarkably, the supported Co–W–B catalyst enables a high H2 release rate of 15 000 mL min−1 g−1 and an activation energy lower than 30 kJ mol−1 towards the hydrolysis of NaBH4. Furthermore, the main concerns and issues like identifying a real catalytic activity center and revealing the catalytic mechanisms are also discussed, along with perspectives on future research in this field.

A review of transition-metal boride/phosphide-based materials for catalytic hydrogen generation from hydrolysis of boron-hydrides

Metal-catalyzed hydrolysis of ammonia borane: Mechanism, catalysts, and challenges

Highly efficient hydrolysis of ammonia borane using ultrafine bimetallic RuPd nanoalloys encapsulated in porous g-C3N4

Amorphous NiP supported on rGO for superior hydrogen generation from hydrolysis of ammonia borane

Oxygen-vacancy-rich tungsten oxide boosted ultrasmall iridium nanoparticles for acidic oxygen evolution

Developing highly efficient and stable noble-metal-free catalysts toward catalytic hydrolysis of ammonia borane (AB) for hydrogen storage is highly desirable, but still remains challenging. We report a simple and in situ co-reduction approach to synthesize bimetallic NiCoP nanoparticles (NPs) supported on reduced graphene oxide (rGO). Thanks to the strong electronic interaction between Ni, Co, and P, the as-synthesized Co89.8 Ni10.2 P11.7 /rGO catalyst exhibits superior catalytic performance towards hydrolysis of AB, with the turnover frequency value (TOF) of 18.6 min-1 , which is about 2.5 times higher than that of NiCo/rGO.

In Situ Synthesis of NiCoP Nanoparticles Supported on Reduced Graphene Oxide for the Catalytic Hydrolysis of Ammonia Borane

The development of highly efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) under alkaline media is of great importance due to its sluggish water dissociation kinetics. In this work, ultrafine Rh nanoparticle decorated MoSe2 nanoflowers have been synthesized through a colloidal synthetic method. When further used as electrocatalysts for HER in alkaline media, the experimental results demonstrate that 8.2% Rh–MoSe2 nanoflowers exhibit excellent catalytic activity with a small overpotential of 73 mV to obtain the current density of 10 mA cm−2 with good stability, which is much higher than that of MoSe2 (264 mV) and even close to 20% commercial Pt/C (48 mV). The improved HER performance of Rh–MoSe2 nanoflowers may be ascribed to the synergistic catalytic effects between Rh and MoSe2 and strong electronic interactions among Rh, Mo and Se at the atomic level.

Ultrafine Rh nanoparticle decorated MoSe2 nanoflowers for efficient alkaline hydrogen evolution reaction

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Amorphous NiP supported on rGO for superior hydrogen generation from hydrolysis of ammonia borane

Oxygen-vacancy-rich tungsten oxide boosted ultrasmall iridium nanoparticles for acidic oxygen evolution

In Situ Synthesis of NiCoP Nanoparticles Supported on Reduced Graphene Oxide for the Catalytic Hydrolysis of Ammonia Borane

Ultrafine Rh nanoparticle decorated MoSe2 nanoflowers for efficient alkaline hydrogen evolution reaction