Highly active hydrogen generation from sodium borohydride methanolysis and ethylene glycolysis reactions using protonated chitosan-zeolite hybrid metal-free particles

Saka, Cafer

doi:10.1016/j.apcatb.2022.122335

Cited by 25 publications

(4 citation statements)

References 90 publications

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“…The results indicate nanocomposites participated effectively in accelerating the production of hydr achieving short times. The explanation for the activation of hydrogen production is based on the de sition of sodium borohydride into Na + and BH4 − , followed by the adsorption of the surface of the nanocomposites [61]. It is expected that nanocomposites with la face areas and high porosity will adsorb more BH4 -ions.…”

Section: Resultsmentioning

confidence: 99%

“…The calculations showed rate of calcium increase in the nanocomposites contributed to the increase in the hy production rate from 3055 to 9809 mL/g•min. Figure 10 shows the corresponding The explanation for the activation of hydrogen production is based on the decomposition of sodium borohydride into Na + and BH 4 − , followed by the adsorption of BH 4 − on the surface of the nanocomposites [61]. It is expected that nanocomposites with large surface areas and high porosity will adsorb more BH 4 − ions.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of CaCO3/Cu2O/GO Nanocomposite Catalysts for Hydrogen Production from NaBH4 Methanolysis

et al. 2023

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The synthesis of CaCO3/Cu2O/GO nanocomposites was developed by sol-gel auto-combustion method. The analysis of structure was completed on X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and environmental scanning electron microscopy (ESEM). The XRD spectra of the nanocomposites matched the crystal structure of CaCO3/Cu2O. The average crystal size was 20 nm for Cu2O and 25 nm for CaCO3 nanoparticles. FTIR data showed the absorption bands of Cu2O and GO. Raman spectroscopy data confirmed the formation of GO sheets. ESEM micrographs displayed spherical nanoparticles dispersed in GO sheets. X-ray photoelectron spectroscopy showed the peaks of Cu 2p, O 1s, C 1s, Cu 3s, and Ca 2p. The spectra of optical absorption revealed an absorption band of around 450 nm. The calcium content increase led to a decrease in the optical energy gap from 2.14 to 1.5 eV. The production of hydrogen from NaBH4 across the methanolysis reaction was accelerated by the CaCO3/Cu2O/GO nanocomposites. Therefore, these nanocomposites are superior in catalytic hydrogen production systems.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Synthesis of CaCO3/Cu2O/GO Nanocomposite Catalysts for Hydrogen Production from NaBH4 Methanolysis

et al. 2023

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“…Sodium borohydride (NaBH 4 , SB), as a hydrogen storage material, has the characteristics of high hydrogen storage capacity (10.8 wt%), easy handling, nonflammable, and nontoxic. [72][73][74] SB can produce H 2 through thermolysis, 75,76 alcoholysis [77][78][79][80] or hydrolysis. 81,82 However, SB has high thermal stability, which requires its thermal decomposition to be carried out at high temperatures (>773 K), and the actual decomposition process will form many by-products.…”

Section: Sodium Borohydridementioning

confidence: 99%

Hydrogen production from chemical hydrogen storage materials over copper‐based catalysts

Long,

Wu,

Liu

et al. 2024

cMat

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Hydrogen, as a clean and efficient energy source, is one of the important energy carriers in the future. However, the safe storage and delivery of hydrogen is still a bottleneck in its practical applications. Chemical hydrides (such as NaBH4, NH3BH3, N2H4·H2O, N2H4BH3, and HCOOH) are considered as potential chemical hydrogen storage materials that can achieve rapid on‐site hydrogen production. At present, the most critical issue for them is to develop economic catalysts to achieve efficient hydrogen production from chemical hydrides. Copper (Cu) is considered as a promising catalyst that is one of the most reactive metals among the first‐row transition metals and economically cheap. In this review, we outline the recent advancements of Cu‐based catalysts in catalyzing hydrogen production from chemical hydrides. Moreover, the synthesis methods, characterization techniques, and hydrogen production catalytic activity of Cu‐based catalysts were also introduced. Finally, a brief conclusion and outlook are given for the application of Cu‐based catalysts in the dehydrogenation of chemical hydrides. We hope that this review will stimulate interest in the promising research area of Cu‐based catalysts for the dehydrogenation of chemical hydrides.

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“…Photocatalysis is another important method for producing hydrogen gas, and zeolite loaded with TiO 2 photocatalyst was supposed to be one of the potentially efficient catalysts [58,59]. To improve the transmission efficiency of photoelectrons, some scholars have designed Cu 2 O@TiO 2 @ZIF-8, where an internal electric field was formed due to the p-n junction, which promoted the transfer of electrons to the conduction band.…”

Section: Hydrogen Preparationmentioning

confidence: 99%

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

Zhang,

Fang,

Huang

et al. 2023

Catalysts

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Zeolites are porous materials with plentiful and adjustable pore structures, which are widely applied in various fields such as fossil fuel energy conversion, preparation of clean energy, chemical product conversion, CO2 capture, VOC treatment, and so on. Zeolites exhibited advantageous adsorption compared with traditional adsorbents such as activated carbon; in addition, they can also provide abundant reaction sites for various molecules. The chemical composition, structural acidity, and distribution of pore size can distinctly affect the efficiency of the reaction. The modification of zeolite structure, the development of novel and efficient preparation methods, as well as the improvement of reaction efficiency, have always been the focus of research for zeolites.

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Highly active hydrogen generation from sodium borohydride methanolysis and ethylene glycolysis reactions using protonated chitosan-zeolite hybrid metal-free particles

Cited by 25 publications

References 90 publications

Synthesis of CaCO3/Cu2O/GO Nanocomposite Catalysts for Hydrogen Production from NaBH4 Methanolysis

Synthesis of CaCO3/Cu2O/GO Nanocomposite Catalysts for Hydrogen Production from NaBH4 Methanolysis

Hydrogen production from chemical hydrogen storage materials over copper‐based catalysts

Research and Application Development of Catalytic Redox Technology for Zeolite-Based Catalysts

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