Elucidating effect of acid strength on isomerization mechanisms of butene over solid acid catalysts in C4 alkylation

Zhang, Xiaoqiang; Li, Hao; Du, Yiqing; Chen, Xiaoping; Wang, Pengzhao; Wang, Lei; Feng, Xiang; Yang, Chaohe; Li, Shuo

doi:10.1016/j.fuel.2023.127397

Cited by 5 publications

(1 citation statement)

References 37 publications

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“…[3] Among the numerous approaches to hydrogen production, the steam reforming of ethanol (SRE, See Reaction 1), especially bio-ethanol obtained from renewable biomass fermentation, has attracted great attention owing to its easy storage and transportation, renewability, and low toxicity. [4][5][6] C 2 H 5 OH…”

Section: Introductionmentioning

confidence: 99%

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Shi,

Zhang,

et al. 2023

Advanced Energy Materials

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The technology of steam reforming of bioethanol has drawn great attention to green hydrogen production. However, catalyst deactivation has always been a significant obstacle to its applications. Here, a series of yNi/Mo2TiC2Tx (yNi/MTC) materials are tailored as robust catalysts for highly efficient long‐term ethanol reforming. The results reveal that hydrogen utilization efficiency of up to 95.6% and almost total ethanol conversion can be achieved at 550 °C using a 10Ni/MTC‐72h catalyst. Moreover, this catalyst has remarkable stability without obvious deactivation after 100 h of bioethanol reforming, which can be attributed to the formation of a Ni─Mo alloy and the strong interaction of the Ni‐Mom‐Mo2‐mTiC2Tx structure. The FTIR‐MS studies demonstrate the superiority of the 10Ni/MTC‐72h catalyst for reinforcing low‐temperature bioethanol activation, as verified by the faster conversion of acetate species than with Ni/Al2O3. The adsorption energies of ethanol on the surface of Ni (−1.07 eV) and Ni/MTC (−1.46 eV) are compared by density functional theory calculations and show the superiority of the Ni/MTC catalyst for activating ethanol during steam reforming. This study provides new implications for highly stabilized Ni‐Mom‐Mo2‐mTiC2Tx construction, which is expected to substantially promote the development and application of bioethanol‐to‐hydrogen production technologies.

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Section: Introductionmentioning

confidence: 99%

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Shi,

Zhang,

et al. 2023

Advanced Energy Materials

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Manufacturing AAl₂O₄ (A=Cu, Co, Ni, Zn) Spinel Catalysts for Toluene Combustion: Elucidating the A‐site Replacement Effect on the Reactivity

Lv,

Yan,

Liu

et al. 2024

ChemCatChem

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To decode the A‐site substitution effect on the reactivity of Al‐based spinel complex oxides, a series of AAl2O4 (A = Cu, Co, Ni, Zn) compounds were manufactured and tested by toluene combustion. It was confirmed that a pure spinel crystalline phase has been successfully synthesized for all the catalysts. The toluene and CO oxidation activity are sequenced as CuAl2O4 > CoAl2O4 > NiAl2O4 > ZnAl2O4. As discovered, both active surface O2‐ and acid sites are the two critical factors to determine the reactivity, which can adsorb and activate the reactants effectively to form active intermediates, possibly following a Mars‐van‐Krevelen pathway. The activity improves positively with the amount increasing of these two kinds of active sites, thus showing an evident A‐site replacement effect. CuAl2O4 owns the biggest numbers of these two kinds of active sites, thereby exhibiting the optimal catalytic activity. Moreover, it also shows good stability in a dry feed, and considerable ability to resist water vapor and sulfur poisoning. In‐situ DRIFTS results have indicated that benzyl, benzoate, benzaldehyde and benzoquinone might be the major reaction intermediates.

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Acid strength controlled reaction pathways of propylene conversion under olefin cracking conditions over ZSM-5

Zhao,

Li,

Wang

et al. 2024

Fuel

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Elucidating effect of acid strength on isomerization mechanisms of butene over solid acid catalysts in C4 alkylation

Cited by 5 publications

References 37 publications

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Manufacturing AAl₂O₄ (A=Cu, Co, Ni, Zn) Spinel Catalysts for Toluene Combustion: Elucidating the A‐site Replacement Effect on the Reactivity

Acid strength controlled reaction pathways of propylene conversion under olefin cracking conditions over ZSM-5

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Elucidating effect of acid strength on isomerization mechanisms of butene over solid acid catalysts in C4 alkylation

Cited by 5 publications

References 37 publications

Modulating Mxene‐Derived Ni‐Mom‐Mo2‐mTiC2Tx Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mom‐Mo2‐mTiC2Tx Structure for Intensified Low‐Temperature Ethanol Reforming

Manufacturing AAl2O4 (A=Cu, Co, Ni, Zn) Spinel Catalysts for Toluene Combustion: Elucidating the A‐site Replacement Effect on the Reactivity

Acid strength controlled reaction pathways of propylene conversion under olefin cracking conditions over ZSM-5

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Product

Resources

About

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Modulating Mxene‐Derived Ni‐Mo_m‐Mo_2‐mTiC₂T_x Structure for Intensified Low‐Temperature Ethanol Reforming

Manufacturing AAl₂O₄ (A=Cu, Co, Ni, Zn) Spinel Catalysts for Toluene Combustion: Elucidating the A‐site Replacement Effect on the Reactivity