Ru/Al2O3 catalyzed CO2 hydrogenation: Oxygen-exchange on metal-support interfaces

Yan, Yonggao; Wang, Qiaojuan; Jiang, Chunyang; Yao, Yao; Lü, Di; Zheng, Jianwei; Dai, Yihu; Wang, Hongming; Yang, Yanhui

doi:10.1016/j.jcat.2018.08.026

Cited by 91 publications

(70 citation statements)

References 71 publications

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“…Yan et al investigated the effect of the Ru-Al 2 O 3 interfaces on the catalytic activity of the RWGS reaction, and proposed Ru 35 /Al 2 O 3 and Ru 9 /Al 2 O 3 catalyst models to explain the experimental observations [22]. The product selectivity switched between CH 4 and CO over the Ru/Al 2 O 3 catalyst, i.e., monolayer Ru sites favored the production of CO, while Ru nano-clusters preferred the production of CH 4 , during CO 2 reduction reaction.…”

Section: Methodsmentioning

confidence: 99%

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

et al. 2019

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Due to the increasing emission of carbon dioxide (CO2), greenhouse effects are becoming more and more severe, causing global climate change. The conversion and utilization of CO2 is one of the possible solutions to reduce CO2 concentrations. This can be accomplished, among other methods, by direct hydrogenation of CO2, producing value-added products. In this review, the progress of mainly the last five years in direct hydrogenation of CO2 to value-added chemicals (e.g., CO, CH4, CH3OH, DME, olefins, and higher hydrocarbons) by heterogeneous catalysis and plasma catalysis is summarized, and research priorities for CO2 hydrogenation are proposed.

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Section: Methodsmentioning

confidence: 99%

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

et al. 2019

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“…The metal‐support interactions (MSI) associated with the supported assemblies have a strong impact on the catalytic performance of these catalysts [5] . Particularly, the hydrogenation selectivity is always greatly influenced by different types of MSI [3a,c,d,6] . Thus, the modulation of the effective MSI to improve selectivity towards goal products is a critical but challenging subject.…”

Section: Introductionmentioning

confidence: 99%

Modulation of the Effective Metal‐Support Interactions for the Selectivity of Ceria Supported Noble Metal Nanoclusters in Atmospheric CO₂ Hydrogenation

Liu

Zhang

et al. 2020

ChemCatChem

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Ever‐increasing attention is paid to the sustainable utilization of CO2 in the atmosphere out of environmental and economic considerations. The deep‐going clarification of the effective and ineffective metal‐support interactions (MSI) in the supported catalysts for the catalytic performance of CO2 hydrogenation is particularly needed to design highly active nanocatalysts. How to tune the MSI to be effective for the selectivity of goal hydrogenation products is a significant but rather challenging subject. In this work, we demonstrate that the selectivity in CO2 hydrogenation can be regulated from preferential CH4 production to preferential CO production by varying the nature of the electronic MSI for ceria supported noble metal nanoclusters, and the effective MSI play a pivotal role for the catalytic systems with opposite hydrogenation selectivity. The modulation of the effective MSI for the selectivity in CO2 hydrogenation sheds new light on the comprehensive understanding of the MSI and interfacial effects in terms of tailoring and controlling the performance of supported heterogeneous catalysts.

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“…1,2 Currently, several new energy sources were developed, such as wind power generation, 3 ocean energy, 4 biomass energy, 5 natural gas 6 and so on. By controlling Ru weight and load, Yan et al 19 prepared a Ru/Al 2 O 3 catalyst with different Ru structure and configuration to accelerate the hydrogen production rate. [7][8][9] However, hydrogen energy is mainly prepared by traditional electrolysis method with high cost and low efficiency, so that it is hard to meet our practical application requirement.…”

Section: Introductionmentioning

confidence: 99%

“…17 For instance, Hu et al 18 prepared an iron doped g-C 3 N 4 multiphase catalyst to clean complex wastewater. By controlling Ru weight and load, Yan et al 19 prepared a Ru/Al 2 O 3 catalyst with different Ru structure and configuration to accelerate the hydrogen production rate. Wei et al 20 prepared a layered perovskite Bi 4 MO 8 X (M = Nb, Ta) with fast mobility of optical carriers.…”

Section: Introductionmentioning

confidence: 99%

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

Wang

et al. 2019

Int J Energy Res

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With the improvement of people's living standard, energy shortage is increasingly severe. Photocatalysis technology is one of the most effective means to solve this problem. Generally, poor visible-light response and fast combination of photo-induced carriers are the main limiting factors to traditional photocatalysts. Aiming at this problem, in this paper, AgBr was used as the photosensitizer to immobilize on the surface of reduced graphene oxide (rGO) for the complexation of Ag + ions and carboxyl groups of precursor graphene oxide (GO), then the two-dimensional rGO-AgBr/Ag composites (2D rGAA-α, α = 1, 2 and 3) were synthesized by solvothermal method. The structures, morphologies, chemical bonding states and photoelectrochemical properties of the samples were analyzed to study the samples, and the corresponding visible-light-driven (VLD) catalytic performances were studied by hydrogen evolution reaction (HER). Compared with pure rGO, the light absorption of rGAA-α was almost extended to full spectral range for the Zscheme heterointerface (rGO-AgBr) construction, and the separation of photo-induced carriers can be promoted effectively. The HER results showed that the average hydrogen evolution rate ( R p ) of rGAA-α was significantly increased, and the rGAA-2 catalyst presented the highest R p (72.71 μmol h -1 g -1 ). After six recycling experiments, the very faint activity decrease and unobvious structure change suggested the high photostability. Accordingly, the enhanced catalytic activity of rGAA-α catalysts was attributed to the formation of Z-scheme heterointerface and generation of Ag plasmas, so this study will provide a simple, effective and promising method for hydrogen energy development. FIGURE 9 VLD photocatalytic mechanism of rGAA-α photocatalyst for HER [Colour figure can be viewed at wileyonlinelibrary.com]

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Ru/Al2O3 catalyzed CO2 hydrogenation: Oxygen-exchange on metal-support interfaces

Cited by 91 publications

References 71 publications

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

Modulation of the Effective Metal‐Support Interactions for the Selectivity of Ceria Supported Noble Metal Nanoclusters in Atmospheric CO₂ Hydrogenation

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

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Ru/Al2O3 catalyzed CO2 hydrogenation: Oxygen-exchange on metal-support interfaces

Cited by 91 publications

References 71 publications

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

Hydrogenation of Carbon Dioxide to Value-Added Chemicals by Heterogeneous Catalysis and Plasma Catalysis

Modulation of the Effective Metal‐Support Interactions for the Selectivity of Ceria Supported Noble Metal Nanoclusters in Atmospheric CO2 Hydrogenation

High photoresponse and fast carrier mobility: Two‐dimensional rGO‐AgBr/Ag composite based on Z‐scheme heterointerface with plasma for hydrogen evolution

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Modulation of the Effective Metal‐Support Interactions for the Selectivity of Ceria Supported Noble Metal Nanoclusters in Atmospheric CO₂ Hydrogenation