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学者姓名：谭理
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Abstract ：
Ethane dehydrogenation to aromatics (EDA) is one of the most promising routes to produce aromatics. Herein, the tandem of dehydrogenation component and acidic zeolite are prepared and investigated for EDA. Pt/Fe-S-1 coupled with ZSM-5 of Si/Al of 14 via mixing homogeneously shows excellent EDA performance with 54.0% ethane conversion, 61.5% aromatics selectivity as well as a deactivation rate constant of 0.00010 h-1. According to catalysts characterizations and controlled experiments, it is confirmed the highly dispersed positive Pt delta+ species around Fe species over Pt/Fe-S-1 is the active sites for ethane dehydrogenation to ethylene and subsequent naphthenes dehydrogenation to aromatics, Br & oslash;nsted acid sites of ZSM-5 and MFI pore are responsible for ethylene oligomerization and cyclization to naphthenes and further naphthenes dehydrogenation to aromatics. The short spatial space between dehydrogenation active sites and acid sites is beneficial for EDA. And the ethylene generation rate is the rate-determining step of EDA.
Keyword ：
dehydroaromatization dehydroaromatization Pt/Fe-S-1 Pt/Fe-S-1 the tandem catalysis the tandem catalysis ZSM-5 ZSM-5
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| GB/T 7714 | Wu, Lizhi , Zhang, Ying , Zou, Caixin et al. Integration of Pt/Fe-silicalite-1 and acidic zeolite as a bifunctional catalyst for boosting ethane dehydroaromatization [J]. | AICHE JOURNAL , 2025 , 71 (5) . |
| MLA | Wu, Lizhi et al. "Integration of Pt/Fe-silicalite-1 and acidic zeolite as a bifunctional catalyst for boosting ethane dehydroaromatization" . | AICHE JOURNAL 71 . 5 (2025) . |
| APA | Wu, Lizhi , Zhang, Ying , Zou, Caixin , Sun, Qin , Li, Baozhen , Zheng, Wenchun et al. Integration of Pt/Fe-silicalite-1 and acidic zeolite as a bifunctional catalyst for boosting ethane dehydroaromatization . | AICHE JOURNAL , 2025 , 71 (5) . |
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Direct conversion of CO2 into light olefins (C2-C4=) offers a promising approach to mitigating CO2 emissions and lessening reliance on feedstock derived from petroleum-based feedstocks while generating high value-added chemicals. Achieving an effective synergy between Fe3O4 and Fe5C2 is crucial for the hydrogenation of CO2. However, the mechanisms underlying this synergy and strategies for its optimization remain inadequately explored. Herein, we clearly addressed this issue by synthesizing a range of FeNa/NC-x catalysts, wherein the precise control of the Fe5C2/Fe3O4 ratio was manipulated through the adjustment of the initial amount of Fe precursor (denoted by x in the catalysts' names). Among the synthesized catalysts, FeNa/NC-0.6, with the Fe5C2/ Fe3O4 ratio of 2.4, displays the superior CO2 conversion (32.6 %) and STYC2-C4= (54.6 mu molCO2 gFe- 1 s- 1). Moreover, its remarkable C2-C4 = selectivity (47.6 %) and ultra-high STYC2-C4= both fall into a high level among reported Fe-based catalysts for CO2 hydrogenation to light olefins. The excellent catalytic performance can be attributed to the optimized synergistic effect of Fe3O4 and Fe5C2. Reducing the initial amount of Fe precursor weakens the metal-support interaction, which in turn increases the Fe5C2/Fe3O4 ratio. This adjustment results in a perfect balance between the density of CO* intermediates and the quantity of Fe5C2 active sites when the ratio reaches 2.4, thereby enhancing the Fischer-Tropsch synthesis (FTS) process and ultimately improving the catalytic efficiency for CO2 hydrogenation. This paper offers a strategy to optimize synergy of Fe3O4 and Fe5C2 for enhancing catalytic performance and a mechanistic insight, which can be utilized in designing efficient catalysts for other heterogeneous catalytic reactions.
Keyword ：
CO 2 hydrogenation CO 2 hydrogenation Iron carbides Iron carbides Iron oxides Iron oxides Light olefins Light olefins Synergistic effect Synergistic effect
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| GB/T 7714 | Liu, Yunhao , Cheng, Qingpeng , Xiong, Shaohui et al. Enhancing CO2 hydrogenation performance via the synergistic effects of iron carbides and iron oxides [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 104 : 66-75 . |
| MLA | Liu, Yunhao et al. "Enhancing CO2 hydrogenation performance via the synergistic effects of iron carbides and iron oxides" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 104 (2025) : 66-75 . |
| APA | Liu, Yunhao , Cheng, Qingpeng , Xiong, Shaohui , Zhang, Yingtian , Tan, Li , Song, Song et al. Enhancing CO2 hydrogenation performance via the synergistic effects of iron carbides and iron oxides . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 104 , 66-75 . |
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The use of bifunctional catalysts, combining methanol synthesis and zeolite components, has been cleverly expanding to the hydrogenation of CO2 into liquefied petroleum gas (LPG). However, such catalysts in this reaction displayed low catalytic efficiency due to the mismatch of the two components. In this study, an efficient strategy was realized via physically coating beta zeolite onto the CuZnAl methanol catalyst, resulting in a shell thickness controllable core-shell encapsulated catalyst, denoted as CuZnAl@beta. Sufficient characterization proves that the micro-coupling structure between methanol active sites and zeolite acid sites is designed reasonably and successfully, as consequently, the zeolite capsule catalysts embody a significant improvement toward LPG selectivity. Hence, the CuZnAl@beta catalyst reached a high selectivity to LPG at 77.9% with 21.3% CO2 conversion, under a reaction pressure of 2.0 MPa and a temperature of 320 degrees C. The strategy employed in this study could offer valuable insights into guiding catalyst design.
Keyword ：
beta zeolite beta zeolite Bifunctional active sites Bifunctional active sites Capsule catalyst Capsule catalyst CO2 hydrogenation CO2 hydrogenation Liquefied petroleum gas Liquefied petroleum gas
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| GB/T 7714 | Zhang, Peipei , Huang, Xin , Qu, Shunli et al. Direct conversion of carbon dioxide into liquefied petroleum gas over zeolite capsule catalyst [J]. | RESEARCH ON CHEMICAL INTERMEDIATES , 2025 , 51 (2) : 675-693 . |
| MLA | Zhang, Peipei et al. "Direct conversion of carbon dioxide into liquefied petroleum gas over zeolite capsule catalyst" . | RESEARCH ON CHEMICAL INTERMEDIATES 51 . 2 (2025) : 675-693 . |
| APA | Zhang, Peipei , Huang, Xin , Qu, Shunli , Wang, Peng , Mi, Xiaotong , Li, Sixuan et al. Direct conversion of carbon dioxide into liquefied petroleum gas over zeolite capsule catalyst . | RESEARCH ON CHEMICAL INTERMEDIATES , 2025 , 51 (2) , 675-693 . |
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The utilization of Cu-based catalysts in the low-temperature catalytic conversion of CO2 to methanol is the focus of industrial processes. However, the metastable nature of highly dispersed Cu active sites causes it easy to sinter, which leads to the decline of activity and methanol selectivity. Herein, an approach involving the incorporation of highly dispersed La species into Cu-ZnO-Al2O3 (CZAL-x) through one-pot synthesis, benefits dispersing and stabilizing Cu0/Cu+ active sites. Consequently, a CO2 conversion reaches 22.4 % with a 75.0 % methanol selectivity of the optimizing CZAL-2.5 catalyst in a stable reaction for 100 h. When the space velocity is 16,000 mL g cat.- 1 h- 1 , the space-time yield of methanol reached the highest value of 814.9 g MeOH kg cat1 h- 1 , significantly outperforming the CZA catalyst. Systematic characterizations reveal the introduction of LaOx enhanced the interaction between Cu active sites and carrier, which effectively improved the sintering resistance of copper nanoparticles.
Keyword ：
Anti-sintering Anti-sintering CO2 hydrogenation reaction CO2 hydrogenation reaction Highly dispersed LaOx Highly dispersed LaOx Methanol selectivity Methanol selectivity Robust Cu active sites Robust Cu active sites
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| GB/T 7714 | Zhang, Peipei , Wang, Wenbo , Wang, Peng et al. Tuning catalytic performance of CuZnOx catalyst via functional LaOx for catalyzing CO2 hydrogenation reaction [J]. | MOLECULAR CATALYSIS , 2025 , 573 . |
| MLA | Zhang, Peipei et al. "Tuning catalytic performance of CuZnOx catalyst via functional LaOx for catalyzing CO2 hydrogenation reaction" . | MOLECULAR CATALYSIS 573 (2025) . |
| APA | Zhang, Peipei , Wang, Wenbo , Wang, Peng , Mi, Xiaotong , Xin, Jing , Li, Sixuan et al. Tuning catalytic performance of CuZnOx catalyst via functional LaOx for catalyzing CO2 hydrogenation reaction . | MOLECULAR CATALYSIS , 2025 , 573 . |
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The conversion of thermodynamically inert CO2 into methanol holds immense promise for addressing the pressing environmental and energy challenges of our time. This article offers a succinct overview of the development of single-atom catalysts (SACs) for thermochemical hydrogenation of CO2 to methanol, encompassing research advancements, advantages, potential hurdles, and other essential aspects related to these catalysts. Our aim of this work is to provide a deeper understanding of the intricacies of the catalytic structures of the single-atom sites and their unique structure-activity relationships in catalyzing the conversion of CO2 to methanol. We also present insights into the optimal design of SACs, drawing from our own research and those of fellow scientists. This research thrust is poised to contribute significantly to the development of next-generation SACs, which are crucial in advancing the sustainable production of methanol from CO2 © 2024 American Chemical Society.
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| GB/T 7714 | Zhao, H. , Liu, X. , Zeng, C. et al. Thermochemical CO2 Reduction to Methanol over Metal-Based Single-Atom Catalysts (SACs): Outlook and Challenges for Developments [J]. | Journal of the American Chemical Society , 2024 , 146 (34) : 23649-23662 . |
| MLA | Zhao, H. et al. "Thermochemical CO2 Reduction to Methanol over Metal-Based Single-Atom Catalysts (SACs): Outlook and Challenges for Developments" . | Journal of the American Chemical Society 146 . 34 (2024) : 23649-23662 . |
| APA | Zhao, H. , Liu, X. , Zeng, C. , Liu, W. , Tan, L. . Thermochemical CO2 Reduction to Methanol over Metal-Based Single-Atom Catalysts (SACs): Outlook and Challenges for Developments . | Journal of the American Chemical Society , 2024 , 146 (34) , 23649-23662 . |
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Selective hydrodeoxygenation of biomass and its derivatives to produce chemicals and biofuels is an effective upgrading strategy to achieve global sustainable development goals. Through the development and utilization of renewable resources, sustainable consumption and production patterns can be promoted and climate change and its impacts can be addressed. Herein, selective hydrodeoxygenation (HDO) of vanillin was conducted by utilizing a Pd/α-MoC catalyst modified with solvent water. The water modification induced the formation of a thin layer of molybdenum oxide on the Pd/α-MoC catalyst surface, which significantly promotes the selective hydrodeoxygenation of vanillin. The conversion of vanillin over the modified Pd/α-MoC catalyst reached 99.9 %, while the selectivity to 4-methyl-2-methoxyphenol (MMP) reached 99.9 % at 0.3 MPa H2 and 80 °C. Comprehensive characterizations elucidate that the heterogeneous layer on the surface of the modified catalyst significantly increases the acidity of the catalyst and improves the removal efficiency of hydroxyl groups, thus improving the high selectivity to the desired product. Moreover, the side reactions are inhibited due to the using of water as the solvent, which contributes a high carbon balance. The modified Pd/α-MoC catalyst exhibits efficient hydrodeoxygenation of vanillin under mild conditions, which suggests an avenue for chemical transformations of biomass derivatives into high value chemicals. © 2024 Elsevier B.V.
Keyword ：
Biomass Biomass Carbides Carbides Catalyst selectivity Catalyst selectivity Climate change Climate change Indicators (chemical) Indicators (chemical) Molybdenum oxide Molybdenum oxide Water treatment Water treatment
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| GB/T 7714 | Guo, Haoquan , Chen, Yu , Yang, Junye et al. Water treatment induced formation of surface oxide layers of Pd/α-MoC catalyst to enhance the selective hydrodeoxygenation of vanillin [J]. | Chemical Engineering Journal , 2024 , 493 . |
| MLA | Guo, Haoquan et al. "Water treatment induced formation of surface oxide layers of Pd/α-MoC catalyst to enhance the selective hydrodeoxygenation of vanillin" . | Chemical Engineering Journal 493 (2024) . |
| APA | Guo, Haoquan , Chen, Yu , Yang, Junye , Wu, Lizhi , Tan, Li , Yang, Guohui et al. Water treatment induced formation of surface oxide layers of Pd/α-MoC catalyst to enhance the selective hydrodeoxygenation of vanillin . | Chemical Engineering Journal , 2024 , 493 . |
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Mo/HMCM-22 is one of the candidate catalysts for methane dehydroaromatization (MDA) reaction. However, serious coke deposition would deactivate the catalyst, resulting in a rapid decrease of aromatics yield. Here, we adjusted the acidity of MCM-22 zeolite by doping boron into the framework. Boron species replace some of framework aluminum and prompt aluminum to locate in sinusoidal channel. It optimizes the ratio of strong/weak Brønsted acid, as well as enhances the interaction between molybdenum and HMCM-22 to facilitate the dispersion of molybdenum species. After 10 h of MDA reaction, the yield of aromatics over Mo/H[B]MCM-22 (SBR 30) is 3.5 times higher than that of Mo/H[B]MCM-22 (SBR 5). It decreases by only 4.8 % in comparison to the initial yield. Meanwhile, Mo/H[B]MCM-22 (SBR 30) shows significantly better resistance to coke deposition. Therefore, the established structure–activity relationships provide valuable insights for future research on the modification of zeolite acidity in methane dehydroaromatization reaction. © 2024 Elsevier Ltd
Keyword ：
Aluminum Aluminum Boron Boron Catalysts Catalysts Coke Coke Deposition Deposition Methane Methane Molybdenum Molybdenum Zeolites Zeolites
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| GB/T 7714 | Gan, Yuyan , Xu, Yunzhao , Zhang, Peipei et al. Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization [J]. | Chemical Engineering Science , 2024 , 299 . |
| MLA | Gan, Yuyan et al. "Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization" . | Chemical Engineering Science 299 (2024) . |
| APA | Gan, Yuyan , Xu, Yunzhao , Zhang, Peipei , Wang, Weihao , Liu, Weiling , Li, Ruoyu et al. Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization . | Chemical Engineering Science , 2024 , 299 . |
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The catalytic conversion of methane into value-added products under mild reaction conditions presents a key challenge in heterogeneous catalysis. In this study, we investigate the conversion of methane to acetic acid (CH3COOH) and other methyl oxygenates by using molecule CO as the promoter on Ir/ZSM-5 catalyst. An optimum space–time yield of 7.4 mmol·gcat−1·h−1 to acetic acid was achieved under mild conditions (2.5 MPa CH4, 2.5 MPa CO, 80 °C). The influence of CO on methane conversion was investigated across various transition metals. Ir, Fe, Rh, and Pd showed promotion towards oxygenated compound formation, while Cu and Cr exhibited inhibition. Sequential charging of CH4 and CO experiments reveal the critical role of CO in acetic acid production. Furthermore, the role of CO was further investigated by in situ Raman, in-situ FTIR and EPR. This work shows the role of CO in mild conversion of CH4 to CH3COOH on Ir catalyst. © 2024 Elsevier Inc.
Keyword ：
Acetic acid Acetic acid Carbon monoxide Carbon monoxide C–H bond C–H bond Iridium Iridium Methane Methane Zeolite Zeolite
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| GB/T 7714 | Liu, B. , Xiang, C. , Yang, J. et al. The promoting role of carbon monoxide in mild conversion of methane to acetic acid on atomically dispersed Ir catalyst anchored in ZSM-5 [J]. | Journal of Catalysis , 2024 , 438 . |
| MLA | Liu, B. et al. "The promoting role of carbon monoxide in mild conversion of methane to acetic acid on atomically dispersed Ir catalyst anchored in ZSM-5" . | Journal of Catalysis 438 (2024) . |
| APA | Liu, B. , Xiang, C. , Yang, J. , Sun, P. , Yang, Y. , Xu, Y. et al. The promoting role of carbon monoxide in mild conversion of methane to acetic acid on atomically dispersed Ir catalyst anchored in ZSM-5 . | Journal of Catalysis , 2024 , 438 . |
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Enhancing catalyst durability is a critical concern in the partial oxidation of methane (POM) to syngas since the reaction is operated at high temperatures (>600 °C). Alongside sintering and coke deposition, the deactivation of the supported Ni catalyst is often due to the in situ oxidation of active metallic nanoparticles into inactive cations during the POM reaction. Herein, a Ni/BN catalyst was developed by introducing functional CeOx as a promoter to stabilize the Ni sites. The optimized 4Ni/7.5Ce/BN catalyst, comprising 4 wt % Ni and 7.5 wt % Ce on BN, exhibits enhanced stability during continuous testing at 600 °C for 125 h without any deactivation, which is comparable to that of noble metal catalysts. Comprehensive investigations reveal that maintaining the metallic state of Ni under reaction atmosphere is crucial for the stability of the catalyst. The construction of CeOx on BN effectively inhibits migration and oxidation of the catalytically active Ni0 species. © 2024 American Chemical Society.
Keyword ：
boron nitride boron nitride catalyst deactivation catalyst deactivation ceria ceria methane reforming methane reforming nickel nickel partial oxidation of methane partial oxidation of methane strong metal support interaction strong metal support interaction syngas syngas
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| GB/T 7714 | Xu, Y. , Yao, J. , Lin, H. et al. Functional CeOx Stabilized Metallic Ni Catalyst Supported on Boron Nitride for Durable Partial Oxidation of Methane to Syngas at High Temperature [J]. | ACS Catalysis , 2024 , 14 (15) : 11845-11856 . |
| MLA | Xu, Y. et al. "Functional CeOx Stabilized Metallic Ni Catalyst Supported on Boron Nitride for Durable Partial Oxidation of Methane to Syngas at High Temperature" . | ACS Catalysis 14 . 15 (2024) : 11845-11856 . |
| APA | Xu, Y. , Yao, J. , Lin, H. , Lv, Q. , Liu, B. , Wu, L. et al. Functional CeOx Stabilized Metallic Ni Catalyst Supported on Boron Nitride for Durable Partial Oxidation of Methane to Syngas at High Temperature . | ACS Catalysis , 2024 , 14 (15) , 11845-11856 . |
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Mo/HMCM-22 is one of the candidate catalysts for methane dehydroaromatization (MDA) reaction. However, serious coke deposition would deactivate the catalyst, resulting in a rapid decrease of aromatics yield. Here, we adjusted the acidity of MCM-22 zeolite by doping boron into the framework. Boron species replace some of framework aluminum and prompt aluminum to locate in sinusoidal channel. It optimizes the ratio of strong/ weak Br & oslash;nsted acid, as well as enhances the interaction between molybdenum and HMCM-22 to facilitate the dispersion of molybdenum species. After 10 h of MDA reaction, the yield of aromatics over Mo/H[B]MCM-22 (SBR 30) is 3.5 times higher than that of Mo/H[B]MCM-22 (SBR 5). It decreases by only 4.8 % in comparison to the initial yield. Meanwhile, Mo/H[B]MCM-22 (SBR 30) shows significantly better resistance to coke deposition. Therefore, the established structure-activity relationships provide valuable insights for future research on the modification of zeolite acidity in methane dehydroaromatization reaction.
Keyword ：
Boron doping Boron doping Br & oslash;nsted acid Br & oslash;nsted acid MCM-22 zeolite MCM-22 zeolite Methane dehydroaromatization Methane dehydroaromatization Mo-based catalyst Mo-based catalyst
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| GB/T 7714 | Gan, Yuyan , Xu, Yunzhao , Zhang, Peipei et al. Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 299 . |
| MLA | Gan, Yuyan et al. "Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization" . | CHEMICAL ENGINEERING SCIENCE 299 (2024) . |
| APA | Gan, Yuyan , Xu, Yunzhao , Zhang, Peipei , Wang, Weihao , Liu, Weiling , Li, Ruoyu et al. Boron doped Mo/HMCM-22 catalyst for improving coke resistance in methane dehydroaromatization . | CHEMICAL ENGINEERING SCIENCE , 2024 , 299 . |
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