Efficient synthesis of highly dispersed ultrafine Pd nanoparticles on a porous organic polymer for hydrogenation of CO<sub>2</sub> to formate

Shao, Xianzhao; Miao, Xinyi; Yu, Xiaohu; Wang, Wei; Ji, Xiaohui

doi:10.1039/d0ra01324b

Cited by 34 publications

(14 citation statements)

References 47 publications

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“…There was also evidently a correlation between the TON based on surface Pd atoms and the Pd 3d 5/2 binding energy determined by XPS analysis (Figure S6). This phenomenon has been reported previously and was proved to be efficient for the hydrogenation of CO 2 to formic acid. ,− …”

Section: Results and Discussionsupporting

confidence: 77%

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

Shao

Miao

Zhang

et al. 2020

ACS Appl. Nano Mater.

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Efficient and reversible hydrogen-storage systems derived from liquid organic compounds are promising alternatives for sustainable energy supplies. Here, we report a Pd nanoparticle catalyst supported on porous carbon co-doped with nitrogen and phosphorous for reversible formate-based chemical hydrogen storage. The materials showed good catalytic performance for both formate dehydrogenation and bicarbonate hydrogenation. The N,P-dual-doped carbon was fabricated by directly pyrolyzing a mixture of 1,10-phenanthroline and triphenylphosphine. Initial density functional theory (DFT) studies suggested that N and P codopants played synergistic roles in modulating the electronic properties of the carbon support. X-ray photoelectron spectroscopy and CO pulse adsorption experiments revealed that the resulting metal−support interactions enriched the electron density at the Pd active site. This promoted the activity of Pd nanoparticles for formate dehydrogenation with a turnover frequency of 3254 h −1 , and a high formate yield exceeding that of individual N-doped or P-doped catalysts was also obtained for the hydrogenation of bicarbonate.

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Section: Results and Discussionsupporting

confidence: 77%

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

Shao

Miao

Zhang

et al. 2020

ACS Appl. Nano Mater.

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“…Figure 3 presents the XPS results obtained from the Pd/AC catalysts with different Pd loadings. The signals at binding energy values of 335.8 and 340.8 eV were attributed to metallic Pd 0 , while evidence for the presence of Pd 2+ was provided by the signals at 336.6 and 341.3 eV 35 . These data show that both Pd 0 and Pd 2+ were present on the catalysts.…”

Section: Resultsmentioning

confidence: 77%

A novel process for the synthesis of p‐aminophenol by transfer hydrogenation of nitrobenzene using formic acid as hydrogen source

Jia

Zhang

et al. 2022

Asia-Pacific J Chem Eng

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p‐Aminophenol (PAP) was synthesized via the transfer hydrogenation of nitrobenzene (NB) over a Pd/AC + SO42−/ZrO2 catalyst using formic acid as the hydrogen source. Pd loading had an obvious effect on the reaction, with an optimal loading of 7 wt.%. The average Pd crystallite size was 3–4 nm, and both Pd0 and Pd2+ species were present on the catalyst surface. The relative proportions of Pd0 and Pd2+ affected the synthesis of PAP, with higher Pd2+ concentrations increasing the PAP selectivity. The reaction conditions for PAP synthesis were optimized, and an NB conversion of 69.6% with 38.1% PAP selectivity was obtained. After the same catalyst sample was used four times, the NB conversion decreased from 69.6% to 61.3%, and PAP selectivity decreased from 34.7% to 21.5%. These changes were attributed to the loss of Pd and S from the catalyst.

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“…276 Recently, Shao et al synthesized ultrafine Pd NPs-embedded POPs for the chemical transformation of CO 2 into formate under mild condition. 277 Similar to the metal-based catalytic sites, metal free cationic POPs containing imidazole 278 and bipyridine 279 sites are rationally developed as CO 2 fixation catalysts. The utility of cationic polymers for cycloaddition reactions is broad as it accommodates the counter-anion, cocatalyst within a single framework, providing benefits both from economic and environmental perspectives.…”

Section: Polymer Based Catalysts For Fixation Of Comentioning

confidence: 99%

Recent progress in materials development for CO₂conversion: issues and challenges

et al. 2021

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Efficient synthesis of highly dispersed ultrafine Pd nanoparticles on a porous organic polymer for hydrogenation of CO₂ to formate

Abstract: Precise design of catalytic supports is an encouraging technique for simultaneously improving the activity and stability of the catalyst.

Cited by 34 publications

References 47 publications

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

A novel process for the synthesis of p‐aminophenol by transfer hydrogenation of nitrobenzene using formic acid as hydrogen source

Recent progress in materials development for CO₂conversion: issues and challenges

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Efficient synthesis of highly dispersed ultrafine Pd nanoparticles on a porous organic polymer for hydrogenation of CO2 to formate

Abstract: Precise design of catalytic supports is an encouraging technique for simultaneously improving the activity and stability of the catalyst.

Cited by 34 publications

References 47 publications

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

Pd Nanoparticles Supported on N- and P-Co-doped Carbon as Catalysts for Reversible Formate-Based Chemical Hydrogen Storage

A novel process for the synthesis of p‐aminophenol by transfer hydrogenation of nitrobenzene using formic acid as hydrogen source

Recent progress in materials development for CO2conversion: issues and challenges

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Efficient synthesis of highly dispersed ultrafine Pd nanoparticles on a porous organic polymer for hydrogenation of CO₂ to formate

Recent progress in materials development for CO₂conversion: issues and challenges