Highly efficient Ru/carbon catalysts prepared by pyrolysis of supported Ru complex towards the hydrogen production from ammonia borane

Navlani‐García, Miriam; Mori, Kohsuke; Nozaki, Ai; Kuwahara, Yasutaka; Yamashita, Hiromi

doi:10.1016/j.apcata.2016.08.018

Cited by 63 publications

(19 citation statements)

References 65 publications

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“…Synthesis of Ru/(1T/2H‐)MoS 2− x . Ru/(1T/2H‐)MoS 2− x was synthesized by the hydrogen reduction reaction according to a reported procedure . Generally, the 1T/2H‐MoS 2 was mixed with solution (ethanol:water=1:2) according to the mass ratio of MoS 2 :Ru=100:1.…”

Section: Methodsmentioning

confidence: 99%

“…Synthesis of Ru/(1T/2H-)MoS 2À Àx .R u/(1T/2H-)MoS 2Àx was synthesized by the hydrogen reduction reaction according to ar eported procedure. [53,54] Generally,t he 1T/2H-MoS 2 was mixed with solution (ethanol:water = 1:2) according to the mass ratio of MoS 2 :Ru = 100:1. The solution was stirred for 2hours and under an ultrasonic treatment for 1h our,t hen dried in vacuum at room temperature.…”

Section: Catalysts Ynthesismentioning

confidence: 99%

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Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Zhang

Kuwahara

Mori

et al. 2018

Chemistry An Asian Journal

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Molybdenum disulfide (MoS2) has been regarded as a favorable photocatalytic co‐catalyst and efficient hydrogen evolution reaction (HER) electrocatalyst alternative to expensive noble‐metals catalysts, owing to earth‐abundance, proper band gap, high surface area, and fast electron transfer ability. In order to achieve a higher catalytic efficiency, defects strategies such as phase engineering and vacancy introduction are considered as promising methods for natural 2H‐MoS2 to increase its active sites and promote electron transfer rate. In this study, we report a new two‐step defect engineering process to generate vacancies‐rich hybrid‐phase MoS2 and to introduce Ru particles at the same time, which includes hydrothermal reaction and a subsequent hydrogen reduction. Compositional and structural properties of the synthesized defects‐rich MoS2 are investigated by XRD, XPS, XAFS and Raman measurements, and the electrochemical hydrogen evolution reaction performance, as well as photocatalytic hydrogen evolution performance in the ammonia borane dehydrogenation are evaluated. Both catalytic activities are boosted with the increase of defects concentrations in MoS2, which ascertains that the defects engineering is a promising route to promote catalytic performance of MoS2.

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Section: Methodsmentioning

confidence: 99%

Section: Catalysts Ynthesismentioning

confidence: 99%

Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Zhang

Kuwahara

Mori

et al. 2018

Chemistry An Asian Journal

Self Cite

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“…25) Ru shows an excellent catalytic activity in various reactions such as organic synthesis, ammonia synthesis, exhaust gas purification, and fuel cell electrodes. 26,27) Therefore, Ru was used here as a supported metal to investigate the support properties of nanoporous CeO 2 prepared via a dealloying process from a CeAl amorphous alloy.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Generation from Ammonia Borane over Ru/Nanoporous CeO<sub>2</sub> Catalysts Prepared from Amorphous Alloys

et al. 2019

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CeO 2 supports were prepared via a dealloying method from amorphous alloy. The activities of Ru/CeO 2 catalysts were examined in the hydrogen generation reaction from ammonia borane. To investigate the effects of atomic arrangement of CeO 2 precursor on the activities of Ru/ CeO 2 catalysts, CeO 2 supports were prepared from amorphous alloys and crystalline alloys. The use of amorphous alloys as the precursor of CeO 2 created fine porous structures, resulting in high catalytic activities of Ru/CeO 2 catalysts.

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“…Ammonia borane (AB), with its high hydrogen density (19.6%), low molar molecular weight (30.7 g mol −1 ), and high stability, is a high-profile hydrogen storage material [5][6][7][8]. When appropriate catalysts are used, the activation energy of the reaction is reduced, and the AB produces a large amount of hydrogen under mild conditions according to the following reaction [9,10]:…”

Section: Introductionmentioning

confidence: 99%

Cu0.4Co0.6MoO4 Nanorods Supported on Graphitic Carbon Nitride as a Highly Active Catalyst for the Hydrolytic Dehydrogenation of Ammonia Borane

Liao

et al. 2019

Catalysts

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As a typical chemical hydride, ammonia borane (AB) has received extensive attention because of its safety and high hydrogen storage capacity. The aim of this work was to develop a cost-efficient and highly reactive catalyst for hydrolyzing AB. Herein, we synthesized a series of CuxCo1–xMoO4 dispersed on graphitic carbon nitride (g-C3N4) to dehydrogenate AB. Among those CuxCo1–xMoO4/g-C3N4 catalysts, Cu0.4Co0.6MoO4/g-C3N4 exhibited the highest site time yield (STY) value of 75.7 m o l H 2 m o l c a t − 1 m i n − 1 with a low activation energy of 14.46 kJ mol−1. The STY value for Cu0.4Co0.6MoO4/g-C3N4 was about 4.3 times as high as that for the unsupported Cu0.4Co0.6MoO4, indicating that the g-C3N4 support plays a crucial role in improving the catalytic activity. Considering its low cost and high catalytic activity, our Cu0.4Co0.6MoO4/g-C3N4 catalyst is a strong candidate for AB hydrolysis for hydrogen production in practical applications.

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Highly efficient Ru/carbon catalysts prepared by pyrolysis of supported Ru complex towards the hydrogen production from ammonia borane

Cited by 63 publications

References 65 publications

Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Hydrogen Generation from Ammonia Borane over Ru/Nanoporous CeO<sub>2</sub> Catalysts Prepared from Amorphous Alloys

Cu0.4Co0.6MoO4 Nanorods Supported on Graphitic Carbon Nitride as a Highly Active Catalyst for the Hydrolytic Dehydrogenation of Ammonia Borane

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Highly efficient Ru/carbon catalysts prepared by pyrolysis of supported Ru complex towards the hydrogen production from ammonia borane

Cited by 63 publications

References 65 publications

Defect Engineering of MoS2 and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Defect Engineering of MoS2 and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Hydrogen Generation from Ammonia Borane over Ru/Nanoporous CeO<sub>2</sub> Catalysts Prepared from Amorphous Alloys

Cu0.4Co0.6MoO4 Nanorods Supported on Graphitic Carbon Nitride as a Highly Active Catalyst for the Hydrolytic Dehydrogenation of Ammonia Borane

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Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions

Defect Engineering of MoS₂ and Its Impacts on Electrocatalytic and Photocatalytic Behavior in Hydrogen Evolution Reactions