The hydrolysis of ammonia borane catalyzed by NiCoP/OPC-300 nanocatalysts: high selectivity and efficiency, and mechanism

Qu, Xiaopeng; Jiang, Rui; Li, Qian; Zeng, Fanan; Zheng, Xue; Zhang, Xu; Cun-hua, Chen; Peng, Jing

doi:10.1039/c8gc03536a

Cited by 82 publications

(44 citation statements)

References 52 publications

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“…However, as noble metals are expensive, the full utilization of the noble metal atoms is a significant issue in the production of noble metal-based catalysts. The non-noble metal-based catalysts were also used to catalyze the hydrolysis of AB, and the well-designed catalytic system had attractive activity for this reaction [ 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ]. However, most of the non-noble metal-based catalysts had lower catalytic activity and less stability compared to the noble metals.…”

Section: Introductionmentioning

confidence: 99%

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

et al. 2020

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A series of Cu@Pd/C with different Pd contents was prepared using the galvanic reduction method to disperse Pd on the surface of Cu nanoparticles on Cu/C. The dispersion of Pd was regulated by the Cu(I) on the surface, which was introduced by pulse oxidation. The Cu2O did not react during the galvanic reduction process and restricted the Pd atoms to a specific area. The pulse oxidation method was demonstrated to be an effective process to control the oxidization degree of Cu on Cu/C and then to govern the dispersion of Pd. The catalysts were characterized by transmission electron microscopy (TEM), high-resolution transmission electron microscope (HRTEM), high angular annular dark field scanning TEM (HAADF-STEM), energy-dispersive spectroscopy (EDS) mapping, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), auger electron spectroscopy (AES), and inductively coupled plasma optical emission spectrometer (ICP-OES), which were used to catalyze the hydrogen evolution from ammonia borane. The Cu@Pd/C had much higher activity than the PdCu/C, which was prepared by the impregnation method. The TOF increased as the Cu2O in Cu/C used for the preparation of Cu@Pd/C increased, and the maximum TOF was 465 molH2 min−1 molPd−1 at 298 K on Cu@Pd0.5/C-640 (0.5 wt % of Pd, 640 mL of air was pulsed during the preparation of Cu/C-640). The activity could be maintained in five continuous processes, showing the strong stability of the catalysts.

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Section: Introductionmentioning

confidence: 99%

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

et al. 2020

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“…[5] Most importantly it has a high hydrogen content of 19.6 wt%. There have been several reported ways of decomposing AB including thermal treatment [6][7][8] and solvolysis catalysis in solvents such as water, [9][10][11] methanol [12][13] and other organic solvents. [14] Compared to hydrolysis, methanolysis of AB is attracting due to the high solubility and possible low temperature handling.…”

Section: Donut Assembly Of Nanoparticles With High Catalytic Efficienmentioning

confidence: 99%

Donut Assembly of Nanoparticles with High Catalytic Efficiency for Hydrogen Gas Generation from Ammonia Borane

Liu

et al. 2019

ChemCatChem

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Polymer‐supported transition metal nano particles usually exhibited low catalytic efficiency due to the long diffusion length for the reactants to reach the catalytic center. Herein, we used cyclic polymers to construct donut‐like assembly with two cyclic macromolecules sandwiching a layer of metal NPs. Doping Rh into the nano particles led to extremely active catalysts for ammonia borane decomposition with a high TOF of 780 min−1. We attributed the high efficiency to the reduced diffusion length in this special assembly. Light‐promoted effect was also demonstrated with TOF further elevated to 980 min−1. The modular nature of this design also permitted subsequent structural modification to achieve high stability with TON reaching over 2×106.

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“… 34 Some of these reports suggest that alloy nanoparticles could be more efficient than their monometallic counterpart for the catalytic hydrolysis of ammonia borane because of the synergistic effects arising because of the interaction of two distinct metals. 35 …”

Section: Introductionmentioning

confidence: 99%

Ru_xPd_y Alloy Nanoparticles Uniformly Anchored on Reduced Graphene Oxide Nanosheets (Ru_xPd_y@rGO): A Recyclable Catalyst

et al. 2021

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In this work, Ru x Pd y alloy nanoparticles were uniformly decorated on a two-dimensional reduced graphene oxide (rGO) sheet by an in situ chemical co-reduction process. The resulting products were characterized by various physiochemical techniques such as X-ray diffraction, Raman spectroscopy, energy-dispersive X-ray spectroscopy, inductively coupled plasma atomic absorption spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. Further, the synthesized Ru x Pd y @rGO nanocomposites have been employed as a heterogeneous catalyst for three different catalytic reactions: (1) dehydrogenation of aqueous ammonia borane (AB); (2) hydrogenation of aromatic nitro compounds using ammonia borane as the hydrogen source, and (3) for the synthesis of aromatic azo derivatives. The present work illustrates the sustainable anchoring of metal nanoparticles over the surface of rGO nanosheets, which could be used for multifarious catalytic reactions.

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The hydrolysis of ammonia borane catalyzed by NiCoP/OPC-300 nanocatalysts: high selectivity and efficiency, and mechanism

Abstract: The development of highly efficient and cheap catalysts for the release of hydrogen from chemical hydrogen-storage materials is indispensable for the coming clean energy economy.

Cited by 82 publications

References 52 publications

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

Donut Assembly of Nanoparticles with High Catalytic Efficiency for Hydrogen Gas Generation from Ammonia Borane

Ru_xPd_y Alloy Nanoparticles Uniformly Anchored on Reduced Graphene Oxide Nanosheets (Ru_xPd_y@rGO): A Recyclable Catalyst

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The hydrolysis of ammonia borane catalyzed by NiCoP/OPC-300 nanocatalysts: high selectivity and efficiency, and mechanism

Abstract: The development of highly efficient and cheap catalysts for the release of hydrogen from chemical hydrogen-storage materials is indispensable for the coming clean energy economy.

Cited by 82 publications

References 52 publications

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

Donut Assembly of Nanoparticles with High Catalytic Efficiency for Hydrogen Gas Generation from Ammonia Borane

RuxPdy Alloy Nanoparticles Uniformly Anchored on Reduced Graphene Oxide Nanosheets (RuxPdy@rGO): A Recyclable Catalyst

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Ru_xPd_y Alloy Nanoparticles Uniformly Anchored on Reduced Graphene Oxide Nanosheets (Ru_xPd_y@rGO): A Recyclable Catalyst