Novel method of high-efficient synergistic catalyze ammonia borane hydrolysis to hydrogen evolution and catalytic mechanism investigation

Li, Haojie; Yan, Yunfei; Feng, Shuai; Zhu, Yilin; Chen, Yanrong; Hu, Fan; Zhang, Li

doi:10.1016/j.fuel.2019.115771

Cited by 28 publications

(18 citation statements)

References 32 publications

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“…This is due to AB being photocatalyzed by photocatalysts RuCu/β-SiC NWs and thermocatalyzed by the RuCu metal cluster of the RuCu/β-SiC NWs. This result has been demonstrated in our previous study . The reaction formula are shown in eqs and .…”

Section: Resultssupporting

confidence: 84%

“…Sun et al prepared CuNi/TiO 2 –CdS nanocatalyst to catalyze ammonia borane hydrolysis under visible-light irradiation; the nanocomposite CuNi/TiO 2 –CdS exhibits excellent photocatalytic activity in catalyzing ammonia borane hydrolysis. In addition, in our previous research, we confirmed that photocatalysis and thermocatalysis have synergic catalytic effects in the AB hydrolysis reaction, which can be applied in enhancing the ammonia borane hydrolysis reaction …”

Section: Introductionsupporting

confidence: 63%

“…Energy cutoff was set to a value of 350 eV. The other parameter settings, such as optimization energy, maximum force, and maximum displacement, were set to 10 –5 eV, 1 × 10 –5 eV, 0.03 eV/Å, and 0.001 Å, respectively. , …”

Section: Experiments and Dft Calculationsmentioning

confidence: 99%

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Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Yan

Feng

et al. 2020

Energy Fuels

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In this study, β-SiC NWs, Ru/β-SiC NWs, Cu/β-SiC NWs, and RuCu/β-SiC NWs were prepared to investigate photothermal synergistic catalytic AB hydrolysis to produce hydrogen. The experimental and theoretical calculation results show the band gap values of prepared β-SiC NWs, Cu/β-SiC NWs, Ru/β-SiC NWs, and RuCu/β-SiC NWs are 2.36, 1.95, 1.71, and 1.49 eV, respectively. The Ru, Cu nanocluster deposited on β-SiC NWs is conducive to promote the separation and transport of photoinduced electron and hole pairs and increase the transition probability of photoinduced electrons. The transition metal catalyst Cu/β-SiC NWs modified with Ru dopant is beneficial to improve its catalytic activity; with the increase of blending ratio Ru/Cu, the catalytic activity increases gradually; when the mass ratio of Cu:Ru is 2:3, the catalyst Cu 0.4 Ru 0.6 /β-SiC NWs have the highest catalytic performance and fairly good reusability in catalyzing AB hydrolysis, which is much better than the catalytic performance of catalyst Cu/β-SiC NWs and comparable to Ru/β-SiC NWs. In the RuCu alloy nanoclusters of RuCu/β-SiC NWs, the electron conveyed from the Cu atom to the Ru atom and forms the of heterojunction Ru − −Cu + species, which further enhance the photothermal synergic catalytic performance of AB hydrolysis catalyzed by the RuCu/β-SiC NWs. The property of bimetallic synergy is of great significance in improving catalyst activity and reducing catalyst cost.

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Section: Resultssupporting

confidence: 84%

Section: Introductionsupporting

confidence: 63%

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Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Yan

Feng

et al. 2020

Energy Fuels

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“…As a typical solid hydrogen storage material, ammonia borane (AB) has attracted widespread concern because of its high hydrogen content, non-toxicity, and high stability under ambient conditions. 7–10 Among the methods for hydrogen release from AB, hydrolysis is preferred over pyrolysis and alcoholysis. 11,12 Theoretically, one mol AB can be hydrolyzed to produce three equivalents of hydrogen, 13–15 while the self-hydrolysis of AB is thermodynamically possible but dynamically slow at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Synergistic catalytic hydrolysis of ammonia borane to release hydrogen over AgCo@CN

Wang

et al. 2022

New J. Chem.

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“…In addition, hydrogen energy is a tremendously promising energy carrier with a high gravimetric energy density of 120–142 MJ/kg. Moreover, it is also environmentally friendly as the product of its oxidation is water. − However, the storage and transportation of hydrogen energy is an issue that must be considered to achieve its large-scale utilization . Ammonia borane (NH 3 BH 3 , AB) is the most promising hydrogen storage material due to its high hydrogen content (19.6 wt %), chemical stability, nontoxicity, and controllable hydrogen release. , AB can produce hydrogen by hydrolysis, alcoholysis, , or thermolysis. , …”

Section: Introductionmentioning

confidence: 99%

Preparation of TiO₂-Based Photocatalysts Synergistically Modified with Fe³⁺–Graphene and Their Visible-Light-Catalyzed Hydrogen Production from Ammonia Borane

Yan

Jia

et al. 2021

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TiO2-based photocatalysts are promising materials that show great potential in the field of catalysis due to their excellent properties including nontoxicity, high photocatalytic performance, and outstanding thermal and chemical stability. However, several challenges exist regarding TiO2 applications for catalytic hydrogen production. In this work, Fe- and graphene-comodified TiO2 (Fe–rGO/TiO2) was synthesized via a two-step solvothermal method. In addition, the effect of Fe3+ and graphene addition upon the catalytic performance of TiO2 was investigated based on the ammonia borane hydrogen production reaction, and the catalysts were characterized by SEM, XRD, XPS, UV–vis, FT-IR, and Raman methods. Batch experiments showed that the synthesized Fe–rGO/TiO2 composites exhibited high photocatalytic performance for hydrogen production from ammonia borane under visible-light irradiation. Moreover, the highest photocatalytic hydrogen production rate (1235.32 μmol·min–1·gcat –1) of 2%Fe–1%rGO/TiO2 was observed under visible-light irradiation at 25 °C, and the photocatalytic activity of the sample remained almost unchanged after the fifth cycle. The XRD, XPS, FT-IR, and Raman analyses showed that Fe and graphene successfully modified TiO2 and the presence of Ti4+. In addition, the extended visible-light absorption range and a reduction of the band gap of Fe–rGO/TiO2 were demonstrated by UV–vis diffuse reflectance spectra and calculation of the band gap. Also, the preparation of hydrogen from the hydrolysis of ammonia borane photocatalyzed by TiO2 composites was discussed. These findings are crucial for designing TiO2-based photocatalysts with high performance for photocatalytic hydrogen production.

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Novel method of high-efficient synergistic catalyze ammonia borane hydrolysis to hydrogen evolution and catalytic mechanism investigation

Cited by 28 publications

References 32 publications

Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Synergistic catalytic hydrolysis of ammonia borane to release hydrogen over AgCo@CN

Preparation of TiO₂-Based Photocatalysts Synergistically Modified with Fe³⁺–Graphene and Their Visible-Light-Catalyzed Hydrogen Production from Ammonia Borane

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Novel method of high-efficient synergistic catalyze ammonia borane hydrolysis to hydrogen evolution and catalytic mechanism investigation

Cited by 28 publications

References 32 publications

Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Highly Efficient Photothermal Difunctional Catalysts To Enhance Ammonia Borane Hydrolysis for Hydrogen Evolution

Synergistic catalytic hydrolysis of ammonia borane to release hydrogen over AgCo@CN

Preparation of TiO2-Based Photocatalysts Synergistically Modified with Fe3+–Graphene and Their Visible-Light-Catalyzed Hydrogen Production from Ammonia Borane

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Preparation of TiO₂-Based Photocatalysts Synergistically Modified with Fe³⁺–Graphene and Their Visible-Light-Catalyzed Hydrogen Production from Ammonia Borane