Enhanced lattice oxygen activity on glow discharge plasma irradiated SrCr/SiO2 and the performance in oxidative dehydrogenation of ethane with CO2

Chen, Haoran; Liu, Wei; Shen, Jun; Luo, Shi-Zhong; Jing, Fangli

doi:10.1016/j.mcat.2021.111658

Cited by 4 publications

(1 citation statement)

References 57 publications

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“…This is in accordance with the previous literature that the direct CO 2 ‐ODH reaction is favorably following the Mars‐van Krevelen (MVK) mechanism over reducible metal oxides (e. g., CrO x , MoO x , etc. ), [33–36] which is unlikely on Zn‐based sites. Secondly, coking reaction favorably occurred over the fresh catalyst, resulted in the high initial H 2 /C 2 H 4 molar ratio.…”

Section: Resultsmentioning

confidence: 99%

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Liu

Zhang

Wang

et al. 2023

Chemistry A European J

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Ethylene (C2H4) is a major chemical for the modern society, and new technologies for its production are of strategic importance globally. Recently, oxidative dehydrogenation of ethane (C2H6) using CO2 as a milder oxidant (CO2‐ODH) is proposed as a potential way for C2H4 production, and development of effective catalysts for the process is drawing wide attention. Here, we report on a facilely prepared ZSM‐5 supported Zn system, i. e., ZnZSM‐5, which showed great promise in CO2‐ODH. Samples with different Zn loadings were prepared and evaluated, and the highest performance was obtained over 0.05ZnZSM‐5 at 700 °C and a CO2:C2H6 feeding ratio of 5 : 1. During 340 min TOS, the C2H6 conversion decreased moderately from 36.2 % to 23.1 %, and the C2H4 yield stabilized at 21.9 % to 27.9 %. Based on systematic characterization and investigation of reaction conditions, the structure‐performance relationship and reaction network were discussed in detail.

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Section: Resultsmentioning

confidence: 99%

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Liu

Zhang

Wang

et al. 2023

Chemistry A European J

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Tuning the A‐site Element in LaCo_0.8Fe_0.2O₃ Perovskite‐based Catalyst for High Temperature N₂O Decomposition in Nitric Acid Plant

Zheng,

He,

et al. 2024

ChemistrySelect

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The effect of La‐deficiency and Ce/Sr‐substitution in the benchmark LaCo0.8Fe0.2O3 has been investigated for the decomposition of N2O between 500 and 900 °C. Real inlet gas composition and space velocity reveal that La‐deficiency and Ce/Sr‐substitution can improve the thermal stability of catalyst, while La1‐xSrxCo0.8Fe0.2O3 with x≥0.1 was highlighted as a promising formula due to the strongest resistance to deactivation and suppressed undesired NOx decomposition at high space velocity. This phenomenon is mainly ascribed to the incorporation of Sr2+ into the perovskite lattice during the reaction consequently stabilizing the Co3+ species and creating the oxygen vacancies in La1‐xSrxCoO3‐δ. On the contrary, the loss of activity on Ce‐substituted LaCo0.8Fe0.2O3 has been preferentially related to the cobalt exsolution to extra framework of perovskite making the catalytic cycle with Co3+ unfavorable. All these bulk and surface changes are accompanied with opposite evolution of apparent activation energy and pre‐exponential factor which can be discussed based on a redox mechanism.

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Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

et al. 2022

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Enhanced lattice oxygen activity on glow discharge plasma irradiated SrCr/SiO2 and the performance in oxidative dehydrogenation of ethane with CO2

Cited by 4 publications

References 57 publications

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Tuning the A‐site Element in LaCo_0.8Fe_0.2O₃ Perovskite‐based Catalyst for High Temperature N₂O Decomposition in Nitric Acid Plant

Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

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Enhanced lattice oxygen activity on glow discharge plasma irradiated SrCr/SiO2 and the performance in oxidative dehydrogenation of ethane with CO2

Cited by 4 publications

References 57 publications

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO2

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO2

Tuning the A‐site Element in LaCo0.8Fe0.2O3 Perovskite‐based Catalyst for High Temperature N2O Decomposition in Nitric Acid Plant

Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

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Product

Resources

About

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Preparation, Structure‐Performance Relationship, and Reaction Network of ZnZSM‐5 for Oxidative Dehydrogenation of Ethane with CO₂

Tuning the A‐site Element in LaCo_0.8Fe_0.2O₃ Perovskite‐based Catalyst for High Temperature N₂O Decomposition in Nitric Acid Plant