Co-CoOx supported onto TiO2 coated with carbon as a catalyst for efficient and stable hydrogen generation from ammonia borane

Yang, Guang; Guan, Shuyan; Mehdi, Sehrish; Fan, Yanping; Liu, Baozhong; Li, Baojun

doi:10.1016/j.gee.2020.03.012

Cited by 27 publications

(13 citation statements)

References 47 publications

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“…In our work, a reaction test of AB hydrolysis performed in the presence of NaOH without adding 10Ni30Mo x C/γ-Al 2 O 3 catalyst shows no H 2 release, confirming the promoter effect of NaOH rather than a catalyst for AB hydrolysis. Moreover, the H 2 generation rate depends on the concentration of NaOH. , The ideal NaOH concentration (1 M) has been optimized by the literature and applied in the previous work of our group . Therefore, all the following reaction measurements were carried out in the attendance of NaOH (1 M).…”

Section: Results and Discussionmentioning

confidence: 99%

“…It has been reported that the adsorption of H 2 O and AB occurs first on the surface of catalysts, followed by the cleavage of the O–H bond in the adsorbed H 2 O. ,, Moreover, the activation of H 2 O is considered as the rate-determining step, and the reaction path can be expressed as follows: , …”

Section: Results and Discussionmentioning

confidence: 99%

“…Moreover, the H 2 generation rate depends on the concentration of NaOH. 41,46 The ideal NaOH concentration (1 M) has been optimized by the literature 35 and applied in the previous work of our group. 14 Therefore, all the following reaction measurements were carried out in the attendance of NaOH (1 M).…”

Section: Characterization Of Catalystsmentioning

confidence: 99%

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Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

et al. 2021

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Supported non-noble metal nanomaterials have attracted much interest due to their promising application prospects in heterogeneous catalysis. γ-Al2O3-supported Ni–Mo x C catalysts have been synthesized using an impregnation method, followed by the carburization at 993 K under a 5% H2/Ar flow. The synthesized NiMo x C/γ-Al2O3 catalysts are characterized and first tested in the hydrolysis of ammonia borane (NH3BH3, AB) at 298 K. The X-ray photoelectron spectra analysis shows that the incorporation of Mo x C can enhance the dispersion of surface Ni and consequently improve the catalytic performance of NiMo x C/γ-Al2O3 in AB hydrolysis. The highest turnover frequency value of 75.1 min–1 toward the AB hydrolysis is obtained for 10Ni30Mo x C/γ-Al2O3 under the investigated reaction conditions. The kinetic studies of H2 evolution at a temperature range of 293–323 K determined an activation energy (E a) value of 33.12 kJ mol–1 over 10Ni30Mo x C/γ-Al2O3. Experimental results indicate that the synergistic effect of Ni and Mo2C is contributed to the high catalytic activity of 10Ni30Mo x C/γ-Al2O3. The obtained results in this work suggest that the hexagonal Mo2C can be a promising material in catalytic hydrogen generation from AB hydrolysis.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

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Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

et al. 2021

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“…The high-resolution spectrum of C 1s is shown in Fig. 2c, and C–C (284.8 eV), 43 C–O (285.5 eV) and CO (288.7 eV) are the characteristic peaks of C 1s. Fig.…”

Section: Resultsmentioning

confidence: 99%

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

Guan

Guo

Zhang

et al. 2022

Sustainable Energy Fuels

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“…Hydrogen has drawn emerging interest in replacing traditional fossil fuels in the future to resolve global warming and energy shortage issues, but the H 2 storage capacity is an essential factor to be considered before its application. , Actually, various H 2 storage materials have been investigated with different storage capacities. Among them, ammonia borane (NH 3 BH 3 ) is promising due to its nontoxicity, stability, high solubility in water, and the high theoretical gravimetric and volumetric H 2 capacities of 19.6 wt % and 146 g H 2 /L, respectively. − Recently, the hydrogen release by the photoinduced NH 3 BH 3 by hydrolysis has drawn much attention because of the utilization of sustainable solar light and convenience to start or stop the reaction. However, an appropriate catalyst is required to be designed and prepared to accelerate electron transfer under light irradiation and catalyze H 2 evolution during NH 3 BH 3 photohydrolysis. − …”

Section: Introductionmentioning

confidence: 99%

Photohydrolysis of Ammonia Borane for Effective H₂ Evolution via Hot Electron-Assisted Energy Cascade of Au-WO_2.72/TiO₂

Asim

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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Catalytic hydrolysis of ammonia borane has drawn much attention for onboard hydrogen generation because of its high hydrogen capacity. Herein, a ternary Au-WO 2.72 /TiO 2 hybrid is synthesized for efficient photohydrolysis of ammonia borane. The Au nanoparticles (NPs) deposited were in situ-reduced by defective WO 2.72 nanowires, and 2 wt % Au-WO 2.72 is optimal to realize high photoactivity because of the high light absorption and low charge-transfer resistance, which is then combined with TiO 2 nanosheets to form a 2%Au-WO 2.72 /TiO 2 hybrid. This hybrid possesses compact interfaces among Au, WO 2.72 , and TiO 2 , and the electron pump effect of Au surface plasmon resonances and the electron capture property of TiO 2 accelerate the electron transfer from WO 2.72 to Au and then to TiO 2 , leading to the effective separation and long lifetime of photoinduced charges. Therefore, the 2%Au-WO 2.72 /TiO 2 hybrid shows very high catalytic activity under visible light with H 2 evolution rates 2.67-and 31-times higher than those for 2%Au-WO 2.72 and WO 2.72 , respectively.

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Co-CoOx supported onto TiO2 coated with carbon as a catalyst for efficient and stable hydrogen generation from ammonia borane

Cited by 27 publications

References 47 publications

Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

Photohydrolysis of Ammonia Borane for Effective H₂ Evolution via Hot Electron-Assisted Energy Cascade of Au-WO_2.72/TiO₂

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Co-CoOx supported onto TiO2 coated with carbon as a catalyst for efficient and stable hydrogen generation from ammonia borane

Cited by 27 publications

References 47 publications

Ni–Mo2C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

Ni–Mo2C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

The alloy-oxide interfacial ensemble effect of a multilayer core–shell nanomotor for hydrogen generation from ammonia borane

Photohydrolysis of Ammonia Borane for Effective H2 Evolution via Hot Electron-Assisted Energy Cascade of Au-WO2.72/TiO2

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Product

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Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

Ni–Mo₂C Nanocomposites as Highly Efficient Catalysts for Hydrogen Generation from Hydrolysis of Ammonia Borane

Photohydrolysis of Ammonia Borane for Effective H₂ Evolution via Hot Electron-Assisted Energy Cascade of Au-WO_2.72/TiO₂