Highly dispersed Pd-MnOx nanoparticles supported on graphitic carbon nitride for hydrogen generation from formic acid-formate mixtures

Deng, Qianqian; Zhang, Zhuanfang; Cui, Fengjuan; Jia, Lei

doi:10.1016/j.ijhydene.2017.04.294

Cited by 25 publications

(19 citation statements)

References 45 publications

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“…However, only a few catalysts have been reported that use carbon nitride as a support for FA dehydrogenation although it has high surface area, high chemical and thermal stability and good charge carrier mobility. Recently, we reported on the development of a MnO x −Pd/CN‐ y catalyst that showed higher catalytic performance than MnO x −Pd/C for hydrogen generation from a FA at 348 K. The results of this work showed that the carbon nitride support played an import role in the decomposition of the FA . The support in this reaction system suggested that a carbon nitride supported AgPd catalyst may exhibit improved catalytic performance for hydrogen generation from FA.…”

Section: Introductionmentioning

confidence: 80%

Hydrogen Production from the Decomposition of Formic Acid over Carbon Nitride‐Supported AgPd Alloy Nanoparticles

Deng

Xin

Ma³

et al. 2018

Energy Tech

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Highly dispersed bimetallic AgPd alloy nanoparticles with various ratios have been supported on carbon nitride by using a co‐reduction method and then tested for catalytic dehydrogenation of formic acid without base addictive. It was found that the activity of the catalyst depended directly on the AgPd ratios of the catalyst and the reaction temperature. The Ag1Pd2/CN catalyst exhibited excellent catalytic activity for hydrogen generation from formic acid with the initial TOF of 621 h−1 at 348 K. The synergetic interaction between the bimetallic AgPd nanoparticles and the carbon nitride support, the AgPd ratio and the dispersion of AgPd nanoparticles on the support contribute to the high catalytic performance of the AgPd/CN catalysts.

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Section: Introductionmentioning

confidence: 80%

Hydrogen Production from the Decomposition of Formic Acid over Carbon Nitride‐Supported AgPd Alloy Nanoparticles

Deng

Xin

Ma³

et al. 2018

Energy Tech

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“…[67,68] Zahmakiran and co-workers studied the CO absorption of the MnO x in a PdAg-MnO x /N-SiO 2 catalyst by CO-stripping voltammetry analyses and in situ FTIR spectroscopy, and the MnO x is suggested to be able to provide sacrificial CO anchoring sites to absorb the CO to form carbonate, rendering the PdAg sites remain available for FA dehydrogenation for an extended duration. [68] However, the actual experimental results have shown that the aggregation [68,69] and metal leaching [70] are the possible causes of catalyst deactivation of the Mn-contained catalysts. On the other hand, the binding energy of Pd 3d 5/2 is negatively shifted after the addition of Mn, which suggests that the Mn can also donate the electron to the Pd to modify the electronic state of Pd.…”

Section: Composition and Morphologymentioning

confidence: 99%

Formic Acid‐Based Liquid Organic Hydrogen Carrier System with Heterogeneous Catalysts

Zhong

Iguchi

Chatterjee

et al. 2018

Advanced Sustainable Systems

151

111

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Formic acid (HCOOH), with a hydrogen capacity of 4.3 wt. %, has attracted increasing interest in the utilization as a promising H 2 carrier. The CO 2 -HCOOH cycle is believed to be a simple and environmental-friendly process for the charge and discharge of H 2 . In this review, we summarize the state-of-the-art technologies and recent results of the heterogeneously catalyzed dehydrogenation of formic acid. Based on these achievements, future outlooks for improving this system for practical applications are proposed.

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“…2 d). The HRTEM image of the nanocomposite 5 has also shown the lattice fringes 0.48 nm for oxidized iron (020) 32 , and 0.19 nm for palladium (200) 33 , 34 and 0.224 nm for palladium (111) 34 , 35 which further confirms the presence of the elements (Fig. 2 c).…”

Section: Resultsmentioning

confidence: 55%

A magnetically retrievable mixed-valent Fe3O4@SiO2/Pd0/PdII nanocomposite exhibiting facile tandem Suzuki coupling/transfer hydrogenation reaction

Singh

Mishra

Sahoo

et al. 2021

Sci Rep

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Herein, we report a magnetically retrievable mixed-valent Fe3O4@SiO2/Pd0/PdIINP (5) nanocomposite system for tandem Suzuki coupling/transfer hydrogenation reaction. The nanocomposite 5 was prepared first by making a layer of $$\hbox {SiO}_{2}$$ SiO 2 on $$\hbox {Fe}_{3}\hbox {O}_{4}\hbox {NP}$$ Fe 3 O 4 NP followed by deposition of $$\hbox {Pd}^{0}$$ Pd 0 and sorption of $$\hbox {Pd}^{\mathrm{II}}$$ Pd II ions successively onto the surface of Fe3O4@SiO2NP. The nanocomposite was characterized by powder XRD, electron microscopy (SEM-EDS and TEM-EDS) and XPS spectroscopy techniques. The mixed-valent $$\hbox {Pd}^{0}/\hbox {Pd}^{\mathrm{II}}$$ Pd 0 / Pd II present onto the surface of nanocomposite 5 was confirmed by XPS technique. Interestingly, the mixed-valent nanocomposite Fe3O4@SiO2/Pd0/PdIINP (5) exhibited tandem Suzuki coupling/transfer hydrogenation reaction during the reaction of aryl bromide with aryl boronic acid (90% of C). The nanocomposite 5 displayed much better reactivity as compared to the monovalent Fe3O4@SiO2/Pd0NP (3) (25% of C) and Fe3O4@SiO2/PdIINP (4) (15% of C) nanocomposites. Further, because of the presence of magnetic $$\hbox {Fe}_{3}\hbox {O}_{4}$$ Fe 3 O 4 , the nanocomposite displayed its facile separation from the reaction mixture and reused at least for five catalytic cycles.

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Highly dispersed Pd-MnOx nanoparticles supported on graphitic carbon nitride for hydrogen generation from formic acid-formate mixtures

Cited by 25 publications

References 45 publications

Hydrogen Production from the Decomposition of Formic Acid over Carbon Nitride‐Supported AgPd Alloy Nanoparticles

Hydrogen Production from the Decomposition of Formic Acid over Carbon Nitride‐Supported AgPd Alloy Nanoparticles

Formic Acid‐Based Liquid Organic Hydrogen Carrier System with Heterogeneous Catalysts

A magnetically retrievable mixed-valent Fe3O4@SiO2/Pd0/PdII nanocomposite exhibiting facile tandem Suzuki coupling/transfer hydrogenation reaction

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