Query：
学者姓名：崔勍焱
Refining：
Year
Type
Indexed by
Source
Complex
Co-
Language
Clean All
Abstract ：
在新工科建设的背景下,工程教育面临跨学科融合、创新能力培养等新需求.传热学作为工科学生的基础课程之一,承担着培养学生理论与实践结合能力的重要职责.然而,传统的传热学课程存在教学内容陈旧、教学方法单一、理论与实践脱节、学生创新能力和跨学科思维不足等问题,难以适应新工科要求.针对这些问题,提出了课程内容优化、教学方法创新、实践教学强化等教学改革措施,并通过实践探索了改革的效果.结果表明,这些措施显著提升了学生的学习兴趣和综合能力,符合新工科人才培养的需求.
Keyword ：
传热学 传热学 实践探索 实践探索 教学改革 教学改革 新工科 新工科
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 穆亮 , 崔勍焱 . 新工科背景下传热学课程教学改革与实践探索 [J]. | 当代教育实践与教学研究（电子刊） , 2025 , (6) : 41-44 . |
| MLA | 穆亮 等. "新工科背景下传热学课程教学改革与实践探索" . | 当代教育实践与教学研究（电子刊） 6 (2025) : 41-44 . |
| APA | 穆亮 , 崔勍焱 . 新工科背景下传热学课程教学改革与实践探索 . | 当代教育实践与教学研究（电子刊） , 2025 , (6) , 41-44 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Supported noble metal cluster catalysts are typically operated under severe conditions involving switching between reducing and oxidizing atmospheres, causing irreversible transformation of the catalyst structure and thereby leading to permanent deactivation. We discovered that various platinum (Pt) precursors spontaneously disperse in a germanium-MFI (Ge-MFI) zeolite, which opposes the Ostwald ripening phenomenon, producing self-regenerating Pt/Ge-MFI catalysts for propane dehydrogenation. These catalysts reversibly switch between Pt clusters and Pt single atoms in response to reducing reaction and oxidizing regeneration conditions. This environmental adaptability allows them to completely self-regenerate over 110 reaction and regeneration cycles in propane dehydrogenation, and they exhibited unprecedented sintering resistance when exposed to air at 800 degrees C for 10 days. Such spontaneous metal dispersion in a Ge-MFI zeolite is a robust and versatile methodology for fabricating various rhodium, ruthenium, iridium, and palladium cluster catalysts.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hong, Huizhen , Xu, Zhikang , Mei, Bingbao et al. A self-regenerating Pt/Ge-MFI zeolite for propane dehydrogenation with high endurance [J]. | SCIENCE , 2025 , 388 (6746) : 497-502 . |
| MLA | Hong, Huizhen et al. "A self-regenerating Pt/Ge-MFI zeolite for propane dehydrogenation with high endurance" . | SCIENCE 388 . 6746 (2025) : 497-502 . |
| APA | Hong, Huizhen , Xu, Zhikang , Mei, Bingbao , Hu, Wende , Fornasiero, Paolo , Wang, Chuanming et al. A self-regenerating Pt/Ge-MFI zeolite for propane dehydrogenation with high endurance . | SCIENCE , 2025 , 388 (6746) , 497-502 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
In order to gain insight into the influence of SiO2 support particle size on the vacuum residue (VR) slurry-phase hydrocracking performance of Fe-based catalysts, a series of FeZn/SiO2 catalysts with varying SiO2 particle sizes were prepared. Characterization results show that the surface area and pore volume of the FeZn/SiO2 catalysts increase with the reduction of SiO2 particle sizes. The metals Fe and Zn species on FeZn/SiO2-S catalyst are more readily reducible via H2-TPR analysis. Notably, FeZn/SiO2-S catalyst presents higher metal dispersion and a greater degree of sulfurization compared to the other catalysts by XRD and XPS. Hydrocracking results demonstrate that the FeZn/SiO2-S catalyst achieves the lowest coke and gas yields (11.9 wt% and 0.4 wt%), respectively, and the highest VR conversion among these catalysts. The superior performance of the FeZn/SiO2-S catalyst in VR slurry-phase hydrocracking is ascribed to its enhanced hydrogenation activity, deriving from the higher dispersion and sulfurization of metals species. This suppresses the aggregation of polycyclic aromatic hydrocarbons in VR and the over-cracking of intermediate products. Additionally, the increased mesopore associated with smaller SiO2 particles facilitates to the diffusion of large VR molecules, further promoting the hydrocracking reaction.
Keyword ：
FeZn catalyst FeZn catalyst Hydrogenation activity Hydrogenation activity SiO2 particle size SiO2 particle size Slurry-phase hydrocracking Slurry-phase hydrocracking Vacuum residue Vacuum residue
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jianbo , Yan, Jianteng , Cui, Qingyan et al. Effect of SiO2 support particle sizes on the performance of FeZn catalysts in VR slurry-phase hydrocracking [J]. | CATALYSIS TODAY , 2025 , 449 . |
| MLA | Wang, Jianbo et al. "Effect of SiO2 support particle sizes on the performance of FeZn catalysts in VR slurry-phase hydrocracking" . | CATALYSIS TODAY 449 (2025) . |
| APA | Wang, Jianbo , Yan, Jianteng , Cui, Qingyan , Li, Tiesen , Shi, Jie , Wang, Tinghai et al. Effect of SiO2 support particle sizes on the performance of FeZn catalysts in VR slurry-phase hydrocracking . | CATALYSIS TODAY , 2025 , 449 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Natural gas hydrate (NGH) mining via CH4/CO2 exchange integrates CH4 extraction with CO2 geological sequestration, thereby facilitating the achievement of carbon neutrality. However, the relatively low replacement cost remains a significant bottleneck that hinders its large-scale application. In this study, we investigated the potential of intermittent ultrasonic assistance to enhance CH4/CO2 replacement in hydrate-bearing sediments. The effects of ultrasonic power, experimental pressure, and temperature, as well as initial water and hydrate saturations, were systematically analyzed. Results demonstrated that both CH4 recovery and CO2 sequestration rates exhibited an increasing trend with higher ultrasonic power. Specifically, at 100% ultrasonic power, the CH4 recovery and CO2 sequestration rates reached 79.06% and 55.94%, respectively. Additionally, both rates increased as the pressure decreased and the temperature rose. Notably, ultrasonic assistance significantly improved CH4/CO2 replacement even under conditions where the experimental pressure exceeded the CH4 hydrate phase boundary, or the temperature was below the freezing point. Increased initial water saturation was found to be beneficial for the ultrasonic-assisted CH4/CO2 replacement, whereas a higher hydrate saturation negatively impacted the process. These findings provide valuable insights into enhancing CH4/CO2 swapping and contribute to the advancement of NGH mining and CO2 geological sequestration technologies.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Mu, Liang , Zeng, Jiguang , Lin, Xinhan et al. Intermittent Ultrasonic-Assisted CO2 Replacement for CH4 Extraction from Hydrate-Bearing Clay-Silt Sediments [J]. | ENERGY & FUELS , 2025 , 39 (17) : 7990-8000 . |
| MLA | Mu, Liang et al. "Intermittent Ultrasonic-Assisted CO2 Replacement for CH4 Extraction from Hydrate-Bearing Clay-Silt Sediments" . | ENERGY & FUELS 39 . 17 (2025) : 7990-8000 . |
| APA | Mu, Liang , Zeng, Jiguang , Lin, Xinhan , Liu, Menglong , Cui, Qingyan . Intermittent Ultrasonic-Assisted CO2 Replacement for CH4 Extraction from Hydrate-Bearing Clay-Silt Sediments . | ENERGY & FUELS , 2025 , 39 (17) , 7990-8000 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A low-cost and process-intensified synthesis approach of SSZ-35 zeolite via a seed-assisted method is presented. This approach involves the development of a relatively inexpensive template and the application of seeds to minimize crystallization time and template consumption. Herein, N-Ethyl, N-methyl 2,6-cis-dimethylpiperidinium hydroxide (EMDMPOH) is selected as a template to synthesize SSZ-35 zeolite, and a simplified and optimized scheme for the preparation of such a template is proposed. Specially, the high-purity EMDMPOH is prepared by a sequential alkylation of 2,6-dimethylpiperidine with iodoethane and iodomethane, followed by ion exchange. By employing a seed-assisted strategy, the synthesis process of SSZ-35 zeolite is intensified, resulting in a significant reduction in crystallization time from 7 d to 75 h. Systematic characterizations reveal that the synthesized SSZ-35 zeolite has smaller crystals and larger specific surface area in comparison with the reference sample, leading to enhanced selectivity in n-octane hydroisomerization. Moreover, the cost accounting analysis shows a notable decrease in the synthesis cost of SSZ-35 zeolite by using the synthesis route that combines the simplified process for preparing the template and the reduced amount of template.
Keyword ：
Crystallization intensification Crystallization intensification Low-cost synthesis Low-cost synthesis Seed-assisted method Seed-assisted method SSZ-35 zeolite SSZ-35 zeolite
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Dong, Peng , Wu, Huanliu , Luo, Longhua et al. Low-cost and efficient synthesis of SSZ-35 zeolite through a seed-assisted approach [J]. | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION , 2025 , 208 . |
| MLA | Dong, Peng et al. "Low-cost and efficient synthesis of SSZ-35 zeolite through a seed-assisted approach" . | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION 208 (2025) . |
| APA | Dong, Peng , Wu, Huanliu , Luo, Longhua , Cui, Qingyan , Li, Tiesen , Shi, Jie et al. Low-cost and efficient synthesis of SSZ-35 zeolite through a seed-assisted approach . | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION , 2025 , 208 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The recovery of CH4 from coalbed gas (CBG) is significant for improving energy utilization and mitigating the greenhouse effect. In this study, CH4 was separated from CBG by forming sII hydrate with 5.56 mol % 1,3-dioxolane (DIOX) solution assisted by an eco-friendly promoter sodium lauroyl glutamate (SLG). The effects of SLG concentration, initial pressure and temperature, stirring rate, and CBG composition were systematically investigated. The results revealed that the addition of SLG notably diminished the hydrate induction time and reaction durations. The presence of 500 ppm of SLG decreased the CH4 concentration to 15.50 mol % from the initial 30.23 mol %, and the CH4 recovery and separation factor reached 81.70% and 3.34, respectively. Comparative analyses with other eco-friendly surfactants highlighted the substantial advantages of SLG. The CH4 concentration in the residual gas first decreased and then increased with the augmentation of the initial pressure, temperature, and stirring rate. An inverse pattern was observed in the variations of CH4 recovery and separation factor. This indicated that there existed an optimal initial pressure, temperature, and stirring rate for CBG separation. The CH4 content in the hydrate was increased to 91.59% after a fourth-stage enrichment, meeting the standards for the direct injection of CBG into natural gas pipelines. These findings provide valuable insights for CH4 separation from CBG by forming sII hydrate with eco-friendly promoters.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Mu, Liang , Zhu, Xiaohai , Lai, Jintao et al. Methane Recovery from Coalbed Gas by Forming sII Hydrate with the Aid of a Novel Eco-Friendly Promoter [J]. | ENERGY & FUELS , 2025 , 39 (8) : 3752-3764 . |
| MLA | Mu, Liang et al. "Methane Recovery from Coalbed Gas by Forming sII Hydrate with the Aid of a Novel Eco-Friendly Promoter" . | ENERGY & FUELS 39 . 8 (2025) : 3752-3764 . |
| APA | Mu, Liang , Zhu, Xiaohai , Lai, Jintao , Zeng, Jiguang , Cui, Qingyan . Methane Recovery from Coalbed Gas by Forming sII Hydrate with the Aid of a Novel Eco-Friendly Promoter . | ENERGY & FUELS , 2025 , 39 (8) , 3752-3764 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
For traditional strategies to construct SO2 and H2O co-resistant systems in low-temperature NH3 selective catalytic reduction (NH3-SCR) catalysts, the primary challenge lies in mitigating the partial loss of redox activity at active sites. Herein, we present an approach to construct a protective system based on interface engineering principles, effectively safeguarding Cu active sites in ZnO/FeCu-SSZ-13 under SO2 and H2O exposure. The core innovation stems from the creation of a strong interface effect originated from Zn-O-Al bonds formed between ZnO and the framework Al on the FeCu-SSZ-13 surface. This interface effect can regulate the electronic structure of Zn[sbnd]O bonds on ZnO component, producing abundant basic sites around the Cu active sites, enabling the preferential adsorption of SO2 and its oxidation into ZnSO4, thereby virtually eliminating the redox ability loss of Cu active sites. As a result, ZnO/FeCu-SSZ-13 achieves exceptional low-temperature NH3-SCR performance, maintaining over 90 % NOx conversion even in the presence of SO2 and H2O. Our work opens a new avenue for developing low-temperature NH3-SCR catalysts with desired SO2 and H2O resistance, offering valuable insights for advancing catalytic performance in challenging reaction conditions. © 2025 Elsevier B.V.
Keyword ：
Aluminum compounds Aluminum compounds Catalyst activity Catalyst activity II-VI semiconductors II-VI semiconductors Iron compounds Iron compounds Redox reactions Redox reactions Reduction Reduction Sulfur compounds Sulfur compounds Temperature Temperature
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | He, Shuyi , Lin, Zheguan , Shi, Jie et al. Interface-engineered ZnO/FeCu-SSZ-13 with robust SO2 and H2O resistance for low-temperature NH3-SCR [J]. | Chemical Engineering Journal , 2025 , 522 . |
| MLA | He, Shuyi et al. "Interface-engineered ZnO/FeCu-SSZ-13 with robust SO2 and H2O resistance for low-temperature NH3-SCR" . | Chemical Engineering Journal 522 (2025) . |
| APA | He, Shuyi , Lin, Zheguan , Shi, Jie , Zhou, Linyu , Cui, Qingyan , Li, Tiesen et al. Interface-engineered ZnO/FeCu-SSZ-13 with robust SO2 and H2O resistance for low-temperature NH3-SCR . | Chemical Engineering Journal , 2025 , 522 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Adsorptive separation, which relies on the size, polarity, and affinity of guest molecules, is an efficient, eco-friendly, and cost-effective method. Zeolite-based adsorbents, known for their uniform pore size and regenerability, have exhibited exceptional performance in many challenging adsorption processes, such as the separation of n-paraffin/i-paraffin and xylene isomers. Ion exchange, as an essential piece in the fabrication of zeolite-based adsorbents, significantly affects overall performance. In this review, we survey the recent key developments and issues within ion exchange research of zeolite-based adsorbents, including the solution pH, solution concentration, ion-exchange cycles, ion-exchange temperature, ion-exchange time, calcination temperature, and discuss the mechanisms of their influence on zeolite adsorption. This review also elaborates on the negative effects of improper ion exchange on incomplete cation exchange, cation migration, collapse of the zeolite structure, and blockage of zeolite pores. Other parameters that lack research but have been proven to affect ion exchange are also mentioned. We hope to generate interest in the wider community and encourage others to make use of ion exchange in tackling challenges of adsorption separation science and engineering.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Chenxin , Li, Tiesen , Cui, Qingyan et al. Ion exchange: an essential piece in the fabrication of zeolite adsorbents [J]. | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2025 , 27 (30) . |
| MLA | Li, Chenxin et al. "Ion exchange: an essential piece in the fabrication of zeolite adsorbents" . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS 27 . 30 (2025) . |
| APA | Li, Chenxin , Li, Tiesen , Cui, Qingyan , Wang, Tinghai , Wang, Chan , Yang, Jiao et al. Ion exchange: an essential piece in the fabrication of zeolite adsorbents . | PHYSICAL CHEMISTRY CHEMICAL PHYSICS , 2025 , 27 (30) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
We report a facile yet effective strategy to prepare hierarchical Beta zeolite with high molecular transport effectivity in catalysis. Alkaline etching involves preferential desilication from Beta framework and collapse of microporosity. The preferential desilication from outer rim of Beta stacking faults enlarged intercrystallite mesopores, while the collapse of microporosity created cylindroid-like intracrystalline mesopore. Part of Altet with lower stability was removed during alkaline etching, leading to a decrease in acid sites density. Alkaline etching of Beta zeolite with 0.2 mol/L NaOH solution greatly improved n -hexane isomerization activity over Ptbased catalysts. The maximum yield of isohexane and dibranched isomers increased by 6.2 % and 38.6 %, respectively. The enlargement of intercrystallite mesopores and the generation of intracrystalline mesopores of Beta zeolite lowered apparent activation energy of reaction. The apparent diffusivities measurements further revealed that Pt/Beta-0.2 M showed much lower transport limitation than Pt/Beta-parent. Our findings provide a promising catalyst for industrial alkane isomerization.
Keyword ：
Alkaline etching Alkaline etching Alkane isomerization Alkane isomerization Dibranched isomers Dibranched isomers Diffusion barrier Diffusion barrier Mesoporous Beta zeolite Mesoporous Beta zeolite
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Pengzhao , Chen, Tingting , Qiu, Zihui et al. Pt-promoted mesoporous Beta zeolite catalysts for n-Hexane isomerization with enhanced selectivity to dibranched isomers [J]. | FUEL , 2024 , 368 . |
| MLA | Wang, Pengzhao et al. "Pt-promoted mesoporous Beta zeolite catalysts for n-Hexane isomerization with enhanced selectivity to dibranched isomers" . | FUEL 368 (2024) . |
| APA | Wang, Pengzhao , Chen, Tingting , Qiu, Zihui , Yao, Wenjun , Liu, Pengpeng , Zhang, Yongze et al. Pt-promoted mesoporous Beta zeolite catalysts for n-Hexane isomerization with enhanced selectivity to dibranched isomers . | FUEL , 2024 , 368 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Natural rectorite modified by the hydrothermal method was employed to prepare a catalyst for the slurry-phase hydrocracking of vacuum residue (VR). The influence of hydrothermal treatment on the properties of rectorite and the performance of the corresponding catalyst was examined. Hydrothermal treatment of the rectorite led to the formation of Fe3O4, as evidenced by H-2-TPR analysis. XPS results indicate that the hydrothermal treatment of rectorite can intensify the sulfidation process of Mo species supported on it, possibly due to modifications in the surface properties of the rectorite. Comparative slurry-phase hydrocracking tests showed that the catalyst supported on hydrothermally treated rectorite exhibited significantly higher VR conversion, higher liquid product yield, and higher yields of gasoline and diesel fractions, but lower gas yield compared to the catalyst supported on untreated rectorite. This is ascribed to the high hydrogenation activity of the catalyst supported on hydrothermally treated rectorite, which effectively suppresses the over-cracking reactions of intermediate products that would otherwise produce gas, illustrating the process intensification achieved through hydrothermal treatment.
Keyword ：
Hydrocracking Hydrocracking Hydrothermal treatment Hydrothermal treatment Mo catalyst Mo catalyst Sulfidation Sulfidation Vacuum residue Vacuum residue
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Cui, Qingyan , Yan, Jianteng , Zhang, Haobin et al. Hydrothermal treatment of natural rectorite enhanced Mo sulfidation for slurry-phase hydrocracking of vacuum residue [J]. | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION , 2024 , 205 . |
| MLA | Cui, Qingyan et al. "Hydrothermal treatment of natural rectorite enhanced Mo sulfidation for slurry-phase hydrocracking of vacuum residue" . | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION 205 (2024) . |
| APA | Cui, Qingyan , Yan, Jianteng , Zhang, Haobin , Feng, Weiwei , Yue, Yuanyuan , Li, Tiesen et al. Hydrothermal treatment of natural rectorite enhanced Mo sulfidation for slurry-phase hydrocracking of vacuum residue . | CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION , 2024 , 205 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
