Performance of the La–Mn–Zn–Cu–O Based Perovskite Precursors for Methanol Synthesis from CO2 Hydrogenation

Zhan, Haijuan; Li, Feng; Xin, Chengqi; Zhao, Ning; Xiao, Fang; Wei, Wei; Sun, Yuhan

doi:10.1007/s10562-015-1513-8

Cited by 39 publications

(19 citation statements)

References 29 publications

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“…The four-component samples with two kinds of perovskites show better methanol selectivity, which implies that the strong synergy for different elements and different perovskite phases are significant for the improvement of the catalytic performance. In addition, it is also found that the lower the BE of the Cu α+ , the higher is the CH 3 OH selectivity ( Figure 13) [36]. a The ratio value was calculated from the Auger spectroscopy ( Figure 11).…”

Section: Catalytic Performancementioning

confidence: 99%

“…The XRD patterns of the fresh and reduced perovskites are presented in Figure 10a and b, respectively [36]. La 2 CuO 4 perovskite-like structure can be observed for all fresh samples.…”

Section: Textural and Structural Propertiesmentioning

confidence: 99%

“…The XPS results of the reduced perovskite-type catalysts are listed in Table 11 [36]. ) and the peak at around 531.1-531.5 eV can be assigned to the adsorbed oxygen species (O ad ) derived from the defects or oxygen vacancies in the structure [38].…”

Section: Xps Investigationsmentioning

confidence: 99%

“…Figure 11 [36] shows the Auger electron spectroscopies of Cu LMM for the reduced samples. A broad peak can be observed, which can then be deconvoluted into three peaks.…”

Section: Xps Investigationsmentioning

confidence: 99%

“…The performance of the La-Mn-Zn-Cu-O based perovskite catalysts for methanol synthesis from CO 2 hydrogenation is shown in Table 12 [36]. The LMC-406 shows the worst performance despite the largest surface area and exposed copper surface area.…”

Section: Catalytic Performancementioning

confidence: 99%

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Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Li¹,

Zhan²,

Zhao³

et al. 2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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Three series of perovskite-type catalysts, i.e., La-M-Mn-Cu-O (M = Mg, Y, Zn, Ce), La-M-Cu-Zn-O (M = Ce, Mg, Zr, Y), and La-Mn-Zn-Cu-O, were designed and applied in CO 2 hydrogenation to methanol. The materials were characterized by XRD, N 2 -adsorption, N 2 O-adsorption, ICP-OES, XPS, and TPD techniques. Perovskite structures were observed and the ''metal on oxide'' could be realized via reduction. Upon the introduction of the fourth elements, more structure defects, smaller particles, higher Cu dispersion, larger amount of hydrogen desorption at low temperature, and more amount of basic sites were obtained. The selectivity for methanol and the TOF values were higher for the catalysts derived from perovskite-type precursors. The catalytic performance was related to Cu α+ and/or Cu 0 species, low-temperature H 2 adsorption on the unit, and the weak basic sites.

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Section: Catalytic Performancementioning

confidence: 99%

“…The XRD patterns of the fresh and reduced perovskites are presented in Figure 10a and b, respectively [36]. La 2 CuO 4 perovskite-like structure can be observed for all fresh samples.…”

Section: Textural and Structural Propertiesmentioning

confidence: 99%

Section: Xps Investigationsmentioning

confidence: 99%

“…Figure 11 [36] shows the Auger electron spectroscopies of Cu LMM for the reduced samples. A broad peak can be observed, which can then be deconvoluted into three peaks.…”

Section: Xps Investigationsmentioning

confidence: 99%

Section: Catalytic Performancementioning

confidence: 99%

See 3 more Smart Citations

Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Li¹,

Zhan²,

Zhao³

et al. 2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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Manganese Oxide as a Promoter for Copper Catalysts in CO₂ and CO Hydrogenation

et al. 2022

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In this work, we discuss the role of manganese oxide as a promoter in Cu catalysts supported on graphitic carbon during hydrogenation of CO2 and CO. MnOx is a selectivity modifier in an H2/CO2 feed and is a highly effective activity promoter in an H2/CO feed. Interestingly, the presence of MnOx suppresses the methanol formation from CO2 (TOF of 0.7 ⋅ 10−3 s−1 at 533 K and 40 bar) and enhances the low‐temperature reverse water‐gas shift reaction (TOF of 5.7 ⋅ 10−3 s−1) with a selectivity to CO of 87 %C. Using time‐resolved XAS at high temperatures and pressures, we find significant absorption of CO2 to the MnO, which is reversed if CO2 is removed from the feed. This work reveals fundamental differences in the promoting effect of MnOx and ZnOx and contributes to a better understanding of the role of reducible oxide promoters in Cu‐based hydrogenation catalysts.

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Recent Advances in Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides

2022

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The inevitable emission of carbon dioxide (CO 2 ) due to the burning of a substantial amount of fossil fuels has led to serious energy and environmental challenges. Metal-based catalytic CO 2 transformations into commodity chemicals are a favorable approach in the CO 2 mitigation strategy. Among these transformations, selective hydrogenation of CO 2 to methanol is the most promising process that not only fulfils the energy demands but also re-balances the carbon cycle. The investigation of CO 2 adsorption on the surface of heterogeneous catalyst is highly important because the formation of various intermediates which determines the selectivity of product. Transition metal carbides (TMCs) have received considerable attention in recent years because of their noble metal-like reactivity, ceramic-like properties, high chemical and thermal stability. These features make them excellent catalytic materials for a variety of transformations such as CO 2 adsorption and its conversion into value-added chemicals. Herein, the catalytic properties of TMCs are summarize along with synthetic methods, CO 2 binding modes, mechanistic studies, effects of dopant on CO 2 adsorption, and carbon/metal ratio in the CO 2 hydrogenation reaction to methanol using computational as well as experimental studies. Additionally, this Review provides an outline of the challenges and opportunities for the development of potential TMCs in CO 2 hydrogenation reactions.

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Performance of the La–Mn–Zn–Cu–O Based Perovskite Precursors for Methanol Synthesis from CO2 Hydrogenation

Cited by 39 publications

References 29 publications

Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Manganese Oxide as a Promoter for Copper Catalysts in CO₂ and CO Hydrogenation

Recent Advances in Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides

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Performance of the La–Mn–Zn–Cu–O Based Perovskite Precursors for Methanol Synthesis from CO2 Hydrogenation

Cited by 39 publications

References 29 publications

Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Copper-based Perovskite Design and Its Performance in CO2 Hydrogenation to Methanol

Manganese Oxide as a Promoter for Copper Catalysts in CO2 and CO Hydrogenation

Recent Advances in Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides

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Manganese Oxide as a Promoter for Copper Catalysts in CO₂ and CO Hydrogenation