Tunning Pd–Cu-based catalytic oxygen carrier for intensifying low-temperature methanol reforming

Zuo, Lujie; Yu, Shufan; Zhang, Rongjun; Li, Hongwei; Wu, Yu; Абиев, Р. Ш.; Sun, Zhao; Sun, Zhiqiang

doi:10.1016/j.jclepro.2023.137212

Cited by 46 publications

(9 citation statements)

References 39 publications

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“…Therefore, efforts to substitute phosphine-based catalysts with heterogeneous solid-supported Pd catalysts have been gaining much interest recently. Different organic/inorganic compounds such as zeolites, carbon materials, metal oxides, MOFs, silica, and polymers have been utilized as carriers to prepare Pd catalysts with high activity and recyclability 9 – 14 . However, many developed heterogeneous catalysts have poor recyclability and chemical stability, which restrict their application in industrial or academic fields 15 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Baran¹,

Baran²,

Nasrollahzadeh³

2023

Sci Rep

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Recently, the development of heterogeneous nanocatalytic systems using solid supports has been gaining importance due to some advantages such as easy handling, high thermal stability, high efficiency, reusability, and so on. Therefore, the design of catalyst supports for the preparation of stable heterogeneous catalytic systems is of great importance. In this work, Schiff base-modified ZnO particles have been developed (ZnO–Scb) as a novel support. A heterogeneous nanocatalyst system has then been prepared by immobilizing palladium nanoparticles (Pd NPs) on the ZnO-Scb surface as the support. The resulting palladium nanocatalyst (Pd–ZnO–Scb) structure has been characterized by different analytical techniques (FT-IR, XRD, TEM, FE-SEM, elemental mapping and EDS) and used to catalyze the Heck coupling reactions and 4-nitrophenol (4-NP) reduction. Test results revealed that Pd–ZnO–Scb could effectively couple various aryl halides with styrene in yields of up to 98% in short reaction times. Pd–ZnO–Scb was also efficiently used in the complete 4-NP reduction within 135 s at room temperature. Additionally, it was found that Pd–ZnO–Scb was more effective than other reported catalysts in the Heck coupling reaction. Moreover, the recycling tests indicated that Pd–ZnO–Scb could be easily isolated from the reaction medium and reused in seven consecutive catalytic runs while retaining its nanostructure.

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Section: Introductionmentioning

confidence: 99%

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Baran¹,

Baran²,

Nasrollahzadeh³

2023

Sci Rep

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“…56 Mamlouk M et al built a catalytic system to exhibit robust catalytic performance via regulating the ratios of the dual-sites of Cu + and Cu 0 . 57,58 Xie et al found that oxygen vacancy sites of catalyst enable to catalyze the methanol-reforming process by enhancing the adsorption of water and promote the reaction to increase the yield of hydrogen production. 59 Their work reveals that both the oxygen vacancies and the active metal redox couple can be involved in the reaction as reactive sites for hydrogen production.…”

Section: Resultsmentioning

confidence: 99%

Modulating the active phase in perovskite LaCoO₃ with B-site doping of Cu for efficient methanol reforming to produce hydrogen

Zhang,

Han,

et al. 2024

CrystEngComm

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“…21−23 As an endothermic reaction, the SRM requires a complex heat exchange system for energy supply. 24 Redox-looping-based oxidative steam reforming of methanol (RL-OSRM) provides an alternative solution to the above-mentioned problems; here, the lattice oxygen in the solid oxide, namely the catalytic oxygen carrier (COC), is used for oxygen supply. 25 Specifically, the lattice oxygen-induced oxidative reforming of methanol can achieve self-heating or a slightly exothermic operation, accelerating the initiation of methanol reforming at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…As an endothermic reaction, the SRM requires a complex heat exchange system for energy supply . Redox-looping-based oxidative steam reforming of methanol (RL-OSRM) provides an alternative solution to the above-mentioned problems; here, the lattice oxygen in the solid oxide, namely the catalytic oxygen carrier (COC), is used for oxygen supply .…”

Section: Introductionmentioning

confidence: 99%

Enabling Low-Temperature Methanol Activation via Lattice Oxygen Induced Cu–O–Cr Catalysis

Sun,

Yu,

Toan

et al. 2023

ACS Catal.

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Steam reforming of methanol is a promising approach to achieving hydrogen storage, transportation, and in situ supply. However, this technology is restricted by its high CO selectivity and catalyst deactivation. In this study, CuCr2O4-based catalytic oxygen carriers are tailored for lattice oxygen participating in low-temperature methanol reforming. We found that the low-temperature activation of methanol originated from Cu–O–Cr structure intensification and highly activated lattice oxygen induction. Specifically, methanol can be activated at temperatures as low as 160 °C, on the one hand, attributed to the reinforcement of the Cu–O–Cr structure and, on the other hand, owing to the highly reactive lattice oxygen from the CuO4 tetrahedron in the CuCr2O4 spinel. Combined with XAS and Raman results, the formation of the Cu–O–Cr structure is demonstrated. The hydrogen production rate with an applied CuCr2O4-based catalytic oxygen carrier is 53.2% higher than the control group without Cu–O–Cr formulation. Satisfactory cyclic stability is retained after the 50th lattice oxygen induction and supplement cycle, ascribing to the Cu–O–Cr structure that strongly intensifies Cu–Cr2O3 interactions. DFT results reveal that the process of CH3OH → CH3O* is the rate-determining step. Compared to Cu(111) and Cr2O3(110), the tailored Cu(111)/Cr2O3(110) surface with a Cu–O–Cr structure exhibits the lowest potential barrier during this process, promoting low-temperature methanol reforming.

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Tunning Pd–Cu-based catalytic oxygen carrier for intensifying low-temperature methanol reforming

Cited by 46 publications

References 39 publications

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Modulating the active phase in perovskite LaCoO₃ with B-site doping of Cu for efficient methanol reforming to produce hydrogen

Enabling Low-Temperature Methanol Activation via Lattice Oxygen Induced Cu–O–Cr Catalysis

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Tunning Pd–Cu-based catalytic oxygen carrier for intensifying low-temperature methanol reforming

Cited by 46 publications

References 39 publications

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Synthesis of palladium nanoparticles stabilized on Schiff base-modified ZnO particles as a nanoscale catalyst for the phosphine-free Heck coupling reaction and 4-nitrophenol reduction

Modulating the active phase in perovskite LaCoO3 with B-site doping of Cu for efficient methanol reforming to produce hydrogen

Enabling Low-Temperature Methanol Activation via Lattice Oxygen Induced Cu–O–Cr Catalysis

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Modulating the active phase in perovskite LaCoO₃ with B-site doping of Cu for efficient methanol reforming to produce hydrogen