Phosphor-doped graphitic carbon nitride-supported Pd as a highly efficient catalyst for styrene hydrogenation

Lin, Baining; Zhang, Yuxin; Zhu, Yifan; Zou, Yingping; Hu, Yingjie; Du, Xuhong; Xie, Huasheng; Wang, Kang; Zhou, Yonghua

doi:10.1016/j.catcom.2020.106094

Cited by 15 publications

(8 citation statements)

References 31 publications

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“…The Pd actual load and particle size with different PdCl 2 solution contents are shown, respectively, in Figure S8. With the increase of Pd addition, the content and particle size of Pd NPs increased gradually, which indicated that the loading and particle size could meet the requirements by adjusting the addition of PdCl . Experiments were carried out with different Pd addition; with the increase of Pd loading, the denitrification rate of the catalyst increased and then decreased, but the ammonia selectivity was in contrast as shown in Figure a.…”

Section: Resultsmentioning

confidence: 96%

“…The activity of the catalyst is evaluated with the turnover frequency (TOF) value, representing the number of conversions on a single active site per time . Experiments were performed in 200 mL of 30 mmol/L Fe(II)EDTA-NO with 100 mg catalyst, at pH 6 and 60 °C, and the TOF of catalysts was calculated using the formula as follows: where t is reaction time ( h ), n Pd is the molar amount of Pd on catalysts, and D is metal dispersion.…”

Section: Experimental Sectionmentioning

confidence: 99%

“…With the increase of Pd addition, the content and particle size of Pd NPs increased gradually, which indicated that the loading and particle size could meet the requirements by adjusting the addition of PdCl. 25 Experiments were carried out with different Pd addition; with the increase of Pd loading, the denitrification rate of the catalyst increased and then decreased, but the ammonia selectivity was in contrast as shown in Figure 5a. However, the increase of Pd content brought more catalytic sites, which improved the reaction rate.…”

Section: Catalytic Performancementioning

confidence: 99%

“…Herein, to achieve the regeneration of complex solution without introducing new ions into the complex solution, we first report the use of Pd nanoparticles (NPs) as a catalyst to reduce the denitrification of complex solution by formic acid (FA). , FA was oxidized to CO 2 , NO(aq) was reduced to N 2 , and the complex solution can obtain the ability to adsorb NO again. − Furthermore, higher activity and selectivity were obtained by the selection of N-doped porous carbons (NPCs) as the support. − Different from activated carbon (AC), the dispersion, particle size, and binding stability of Pd NPs (2.31 ± 0.43 nm) were improved by the interaction between Pd and N atoms in NPCs. − Fe(II)EDTA was used as the chelating agent because of its cheap price and simple preparation . As expected, at an Fe(II)EDTA-NO concentration of 30 mmol/L, the denitrification rate reached 90.4% with an N 2 selectivity of 99.6% within 5 min.…”

Section: Introductionmentioning

confidence: 99%

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N-Doped Porous Carbon-Anchored Pd Nanoparticles: A Highly Efficient Catalyst for Fe(II)EDTA-NO Reduction

et al. 2021

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Complex absorption is considered an efficient method to reduce the emission of nitric oxide. At present, it is still a challenge to enhance the regeneration performance of complex solution by changing the structure of the support to enhance the reduction capacity of the catalyst. Herein, N-doped porous carbons (NPCs) were used as an excellent support for synthesizing Pd/NPCs, and then they were utilized as a catalyst toward Fe(II)EDTA-NO reduction. The characterization results of X-ray diffraction, X-ray photoelectron spectra, and transmission electron microscopy confirmed that the dispersion of Pd nanoparticles (NPs) could be improved by N atoms in NPCs. Benefiting from the appropriate Pd NPs particle size and the intrinsic advantages of the support, the resultant Pd/NPCs exhibited superior performances such as a denitrification rate of 90.4% with an N 2 selectivity of 99.6% (used for 5 min under mild conditions) and a turnover frequency of 1916 h −1 . In addition, the kinetic calculation and reaction mechanism derivation provided a new avenue for the fabrication of highly effective catalysts over liquid phase denitrification.

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Section: Resultsmentioning

confidence: 96%

Section: Experimental Sectionmentioning

confidence: 99%

Section: Catalytic Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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N-Doped Porous Carbon-Anchored Pd Nanoparticles: A Highly Efficient Catalyst for Fe(II)EDTA-NO Reduction

et al. 2021

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“…5 Although Pd catalysts show high activity in diolefins hydrogenation reactions, they suffer from low selectivity due to over-hydrogenation of monoolefins, as well as easy loss of active components leading to catalyst deactivation. 9–12 It is still necessary to develop high performance catalysts for isoprene selective hydrogenation.…”

Section: Introductionmentioning

confidence: 99%

Isoprene selective hydrogenation using AgCu-promoted Pd nanoalloys

Sun

et al. 2023

Faraday Discuss.

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Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

et al. 2022

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The transformation of renewable platform molecules to produce value‐added fuels and fine‐chemicals is a promising strategy to sustainably meet future demands. Owing to their finely modified electronic and geometric properties, carbon‐based nanocatalysts have shown great capability to regulate their catalytic activity and stability. Their well‐defined and uniform structures also provide both the opportunity to explore intrinsic reaction mechanisms and the site‐requirement for valorization of renewable platform molecules to advanced fuels and chemicals. This Review highlights the progress achieved in carbon‐based nanocatalysts, mainly by using effective regulation approaches such as heteroatom anchoring, bimetallic synergistic effects, and carbon encapsulation to enhance catalyst performance and stability, and their applications in renewable platform molecule transformations. The foundation for understanding the structure‐performance relationship of carbon‐based catalysts has been established by investigating the effect of these regulation methods on catalyst performance. Finally, the opportunities, challenges and potential applications of carbon‐based nanocatalysts are discussed.

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Phosphor-doped graphitic carbon nitride-supported Pd as a highly efficient catalyst for styrene hydrogenation

Cited by 15 publications

References 31 publications

N-Doped Porous Carbon-Anchored Pd Nanoparticles: A Highly Efficient Catalyst for Fe(II)EDTA-NO Reduction

N-Doped Porous Carbon-Anchored Pd Nanoparticles: A Highly Efficient Catalyst for Fe(II)EDTA-NO Reduction

Isoprene selective hydrogenation using AgCu-promoted Pd nanoalloys

Advanced Carbon‐Based Nanocatalysts and their Application in Catalytic Conversion of Renewable Platform Molecules

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