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学者姓名:张宏伟
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Efficient recognition and selective capture of NH3 is not only beneficial for increasing the productivity of the synthetic NH3 industry but also for reducing air pollution. For this purpose, a group of deep eutectic solvents (DESs) consisting of glycolic acid (GA) and phenol (PhOH) with low viscosities and multiple active sites was rationally designed in this work. Experimental results show that the GA + PhOH DESs display extremely fast NH3 absorption rates (within 51 s for equilibrium) and high NH3 solubility. At 313.2 K, the NH3 absorption capacities of GA + PhOH (1:1) reach 6.75 mol/kg (at 10.7 kPa) and 14.72 mol/kg (at 201.0 kPa). The NH3 solubility of GA + PhOH DESs at low pressures were minimally changed after more than 100 days of air exposure. In addition, the NH3 solubility of GA + PhOH DESs remain highly stable in 10 consecutive absorption-desorption cycles. More importantly, NH3 can be selectively captured by GA + PhOH DESs from NH3/CO2/N-2 and NH3/N-2/H-2 mixtures. H-1-NMR, Fourier transform infrared and theoretical calculations were performed to reveal the intrinsic mechanism for the efficient recognition of NH3 by GA + PhOH DESs.
Keyword :
deep eutectic solvent deep eutectic solvent low viscosity low viscosity multiple active site multiple active site NH3 recognition NH3 recognition selective capture selective capture
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GB/T 7714 | Zheng, Lu , Ju, Saisai , Fang, Siqi et al. Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3 [J]. | SMART MOLECULES , 2025 , 3 (1) . |
MLA | Zheng, Lu et al. "Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3" . | SMART MOLECULES 3 . 1 (2025) . |
APA | Zheng, Lu , Ju, Saisai , Fang, Siqi , Zhang, Hongwei , Cai, Zhenping , Huang, Kuan et al. Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3 . | SMART MOLECULES , 2025 , 3 (1) . |
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High-carbon alcohols are important chemical raw materials and have extensive applications in the fields of chemistry, chemical engineering, and pharmaceuticals. Converting fatty acids or fatty acid methyl esters from waste oil into high-carbon alcohols through hydrogenation has attracted increasing attention. In this study, a series of Cu-ZrO2 catalysts were prepared by a citric acid-assisted sol-gel method. Results reveal that Cu-ZrO2 catalysts prepared by the sol-gel method mainly exist in the form of tetragonal ZrO2with loaded copper species. There is a certain metal-support interaction between metallic Cu and the ZrO2 support, and ZrO2 crystal phase can be retained during the harsh catalytic reaction conditions. X-ray photoelectron spectroscopy results show that Cu0 species are the key active centers. When the Cu0 content is insufficient, the conversion rate of methyl palmitate increases with the increase of Cu0 content. When the Cu0 content is sufficient, Cu+ and Cu0 have a synergistic effect on the hydrogenation reaction. Catalyst dosage, reaction time, reaction temperature and hydrogen pressure were found to have significant effects on the catalytic transformation of methyl palmitate. Increase of reaction temperature can significantly improve the conversion of methyl palmitate. However, excessive temperature can easily induce the dehydration of the generated hexadecanol into by-products such as hexadecane. The conversion of methyl palmitate can be up to 95.1%, and the yield of hexadecanol can reach 91.1% under the conditions of 10% copper loading, 300℃, 6MPa H2 pressure and 2h reaction. © 2025 Chemical Industry Press Co., Ltd.. All rights reserved.
Keyword :
Acids Acids Hydrogenolysis Hydrogenolysis Metallic compounds Metallic compounds Selenium compounds Selenium compounds
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GB/T 7714 | Bao, Jie , Yu, Panjie , Ma, Yongde et al. Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols [J]. | Chemical Industry and Engineering Progress , 2025 , 44 (5) : 2997-3008 . |
MLA | Bao, Jie et al. "Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols" . | Chemical Industry and Engineering Progress 44 . 5 (2025) : 2997-3008 . |
APA | Bao, Jie , Yu, Panjie , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Design of Cu-ZrO2 catalyst and its utilization in hydrogenation of methyl palmitate to fatty alcohols . | Chemical Industry and Engineering Progress , 2025 , 44 (5) , 2997-3008 . |
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Diffusion behavior of catalyst pores plays a crucial influence in polymer heterogeneous hydrogenation reactions. However, experimental methods on how to accurately measure the diffusion coefficient of polymer molecules are still lacking. Herein, we develop an in-situ infrared-based method combined with mathematical models to accurately obtain the diffusion coefficients of polymers and investigate the effect of pore size on the diffusion and hydrogenation performance. Taking dicyclopentadiene resin as the model polymer, the results show that the selected Pd/Al2O3 catalyst with a pore size of 14.7 nm possesses an apparent diffusion coefficient of 3.83 x 10-15 m2/s and exhibits the best catalytic hydrogenation activity with a hydrogenation degree of 98.4%. This study provides a universal method for measuring the diffusion coefficients of polymer molecules, which holds significant guiding importance for the further development of more efficient polymer hydrogenation catalysts.
Keyword :
DCPD resin DCPD resin Diffusion coefficient Diffusion coefficient Heterogeneous hydrogenation Heterogeneous hydrogenation In-situ infrared spectroscopy In-situ infrared spectroscopy Pore size Pore size
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GB/T 7714 | Liu, Qunhong , Song, Zhaohui , Zhang, Hongwei et al. Determination of diffusion coefficients of polymer molecules in porous Pd/ Al2O3 catalyst and their impact on the hydrogenation performance [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 310 . |
MLA | Liu, Qunhong et al. "Determination of diffusion coefficients of polymer molecules in porous Pd/ Al2O3 catalyst and their impact on the hydrogenation performance" . | CHEMICAL ENGINEERING SCIENCE 310 (2025) . |
APA | Liu, Qunhong , Song, Zhaohui , Zhang, Hongwei , Hu, Dezheng , Hu, Cejun , Bao, Xiaojun et al. Determination of diffusion coefficients of polymer molecules in porous Pd/ Al2O3 catalyst and their impact on the hydrogenation performance . | CHEMICAL ENGINEERING SCIENCE , 2025 , 310 . |
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In recent years, studies focusing on the conversion of renewable lignin-derived oxygenates (LDOs) have emphasized their potential as alternatives to fossil-based products. However, LDOs, existing as complex aromatic mixtures with diverse oxygen-containing functional groups, pose a challenge as they cannot be easily separated via distillation for direct utilization. A promising solution to this challenge lies in the efficient removal of oxygen-containing functional groups from LDOs through hydrodeoxygenation (HDO), aiming to yield biomass products with singular components. However, the high dissociation energy of the carbon-oxygen bond, coupled with its similarity to the hydrogenation energy of the benzene ring, creates a competition between deoxygenation and benzene ring hydrogenation. Considering hydrogen consumption and lignin properties, the preference is directed towards generating aromatic hydrocarbons rather than saturated components. Thus, the goal is to selectively remove oxygen-containing functional groups while preserving the benzene ring structure. Studies on LDOs conversion have indicated that the design of active components and optimization of reaction conditions play pivotal roles in achieving selective deoxygenation, but a summary of the correlation between these factors and the reaction mechanism is lacking. This review addresses this gap in knowledge by firstly summarizing the various reaction pathways for HDO of LDOs. It explores the impact of catalyst design strategies, including morphology modulation, elemental doping, and surface modification, on the adsorption-desorption dynamics between reactants and catalysts. Secondly, we delve into the application of advanced techniques such as spectroscopic techniques and computational modeling, aiding in uncovering the true active sites in HDO reactions and understanding the interaction of reactive reactants with catalyst surface-interfaces. Additionally, fundamental insights into selective deoxygenation obtained through these techniques are highlighted. Finally, we outline the challenges that lie ahead in the design of highly active and selective HDO catalysts. These challenges include the development of detection tools for reactive species with high activity at low concentrations, the study of reaction medium-catalyst interactions, and the development of theoretical models that more closely approximate real reaction situations. Addressing these challenges will pave the way for the development of efficient and selective HDO catalysts, (c) 2024 Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword :
Catalyst design Catalyst design Hydrodeoxygenation Hydrodeoxygenation Lignin-derived oxygenates Lignin-derived oxygenates Targeted deoxidation Targeted deoxidation Techniques and theoretical calculation Techniques and theoretical calculation
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GB/T 7714 | Wu, Xinru , Zhang, Hongwei , Hu, Cejun et al. Advances in enhancing hydrodeoxygenation selectivity of lignin-derived oxygenates: From synthetic strategies to fundamental techniques [J]. | GREEN ENERGY & ENVIRONMENT , 2025 , 10 (2) : 292-321 . |
MLA | Wu, Xinru et al. "Advances in enhancing hydrodeoxygenation selectivity of lignin-derived oxygenates: From synthetic strategies to fundamental techniques" . | GREEN ENERGY & ENVIRONMENT 10 . 2 (2025) : 292-321 . |
APA | Wu, Xinru , Zhang, Hongwei , Hu, Cejun , Bao, Xiaojun , Yuan, Pei . Advances in enhancing hydrodeoxygenation selectivity of lignin-derived oxygenates: From synthetic strategies to fundamental techniques . | GREEN ENERGY & ENVIRONMENT , 2025 , 10 (2) , 292-321 . |
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Developing catalysts enabling reactive separation is a promising strategy to enhance reaction and separation efficiency of esterification processes. Herein, we designed a class of hybrid catalysts with p-toluenesulfonic acid (PTSA) as main catalyst, and hydrogensulfate ILs as support catalyst and extractant. Using the designed catalysts for methyl esterification of long-chain fatty acids, phase splitting can occur, resulting in ester-rich and catalyst-rich phases. Under optimal conditions, the conversion of palmitic acid (PA) gives methyl palmitate (MP) yield of 98.2 % in 3 hat 348.2 K. The catalysts are also applicable for effective conversion of other long-chain fatty acids and can be facilely recycled through liquid-liquid separation without loss of activity. COSMOtherm and Gaussian calculations were performed to rationalize the reactive separation behavior of the designed catalysts. The kinetic and thermodynamic properties of the esterification reaction were also examined using pseudo-homogeneous (PH) model with non-ideality corrections.
Keyword :
Acidic catalyst Acidic catalyst Biodiesel Biodiesel Esterification Esterification Ionic liquid Ionic liquid Reactive separation Reactive separation
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GB/T 7714 | Wu, Wenquan , Zhang, Jiayin , Ma, Yongde et al. Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 311 . |
MLA | Wu, Wenquan et al. "Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids" . | CHEMICAL ENGINEERING SCIENCE 311 (2025) . |
APA | Wu, Wenquan , Zhang, Jiayin , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Ionic liquid-based hybrid acidic catalysts enabling phase splitting and reactive separation for methyl esterification of long-chain fatty acids . | CHEMICAL ENGINEERING SCIENCE , 2025 , 311 . |
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In the present work, the selective hydrodeoxygenation (HDO) performance of stearic acid over in situ MoS2 catalysts produced from various Mo precursors was evaluated. Notably, the in situ MoS2 catalyst generated from [N-8881](2)MoO4-a Mo-based ionic liquid (IL) with oil-soluble property-achieves up to 99.9% of stearic acid conversion with the HDO product octadecane yield of 97.5% at 300 degrees C, 8 MPa, and 6 h. The activity of [N-8881](2)MoO4 for catalyzing the selective HDO reaction is much better than commercial precursors like Mo(CO)(6) and (NH4)(6)Mo7O24. The in situ MoS2 catalysts were thoroughly characterized and analyzed to elucidate the experimental results. Moreover, the reaction pathway of stearic acid was proposed according to the product distribution, and the relative kinetic parameters were also calculated and discussed. The results indicate that applying Mo-based IL as the precursor to generate in situ MoS2 catalyst for the selective HDO of biolipids is highly interesting and desired.
Keyword :
biodiesel biodiesel biolipid biolipid hydrodeoxygenation hydrodeoxygenation ionic liquid ionic liquid MoS2 catalyst MoS2 catalyst
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GB/T 7714 | Shi, Leilian , Chen, Weihao , Ma, Yongde et al. Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics [J]. | AICHE JOURNAL , 2025 , 71 (8) . |
MLA | Shi, Leilian et al. "Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics" . | AICHE JOURNAL 71 . 8 (2025) . |
APA | Shi, Leilian , Chen, Weihao , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Mo-based ionic liquid as dispersive precursor for effective hydrodeoxygenation of stearic acid: Mechanism and kinetics . | AICHE JOURNAL , 2025 , 71 (8) . |
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There is a particular demand to explore low-volatility and structurally tunable absorbents for efficiency, selectivity and reversibility in capturing H2S. For the first time, the performance of deep eutectic solvents (DESs) composed of 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) and acetamide (AA) were examined as physical absorbents for H2S capture. The physical properties of [Emim]Cl-AA DESs, and solubilities of both H2S and CO2 in them were measured. Relevant experimental results demonstrated that the solubilities of H2S in [Emim]Cl-AA DESs (1.1 mol/kg at 298.2 K and 1.023 bar) significantly exceed those of CO2 (0.040 mol/kg at 298.2 K and 1.027 bar). [Emim]Cl-AA DESs exhibit higher H2S solubilities and superior ideal H2S to CO2 selectivities (e.g., the ideal H2S/CO2 selectivity of [Emim]Cl-AA (1:0.5) is 28.5 at 298.2 K) than those physical absorbents ever reported. The recyclability of [Emim]Cl-AA DESs for H2S selective capture was also evaluated, which was found to be very stable in ten continuous absorption and regeneration cycle experiments. The mechanism of H2S capture by [Emim]Cl-AA DESs was finally illustrated at the molecular level with the support of theoretical calculations.
Keyword :
Absorption selectivity Absorption selectivity Deep eutectic solvent Deep eutectic solvent H2S capture H2S capture Physical solvent Physical solvent Theoretical calculation Theoretical calculation
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GB/T 7714 | Zheng, Lu , Li, Xiong , Cao, Yanning et al. Efficient, selective and reversible capture of hydrogen sulfide by [Emim] Cl-Acetamide deep eutectic solvents [J]. | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 413 . |
MLA | Zheng, Lu et al. "Efficient, selective and reversible capture of hydrogen sulfide by [Emim] Cl-Acetamide deep eutectic solvents" . | JOURNAL OF MOLECULAR LIQUIDS 413 (2024) . |
APA | Zheng, Lu , Li, Xiong , Cao, Yanning , Ma, Yongde , Zhang, Hongwei , Cai, Zhenping et al. Efficient, selective and reversible capture of hydrogen sulfide by [Emim] Cl-Acetamide deep eutectic solvents . | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 413 . |
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Carbon adsorbents have been widely used to remove indoor volatile organic compounds (VOCs), however, the proliferation of bacteria on the carbon adsorbents may deteriorate the indoor air quality and thus pose a serious threat to human health. Herein, we report the synthesis of antibacterial porous carbon spheres (carbonized aminophenol-formaldehyde resin, CAF) with well-dispersed Cu species via an in situ incorporation of Cu2+ during the polymerization of 3-aminophenol-formaldehyde resin followed by a thermal carbonization and reduction process. Compared with CAF, the Cu/CAF-x nanocomposites with Cu loading show a much higher specific surface area (>700 m2 g−1 vs. 569 m2 g−1 for CAF). In addition, the pore size of Cu/CAF-x is ranging from 0.7 to 1.68 nm, which is exactly conducive to adsorb the toluene molecules. As a result, the toluene adsorption capacity is improved from 123.50 mg g−1 for CAF to >170 mg g−1 for Cu/CAF-x. More importantly, such adsorbents possess excellent antibacterial performance, the Cu/CAF-10 (10 wt% of Cu loading) with a concentration of 50 μg mL−1 can completely kill the E. coli within 30 min. Our work paves the way to the development of bifunctional adsorbents with both efficient VOCs adsorption and excellent antibacterial performance. © 2023
Keyword :
Adsorption Adsorption Air quality Air quality Carbonization Carbonization Copper compounds Copper compounds Escherichia coli Escherichia coli Formaldehyde Formaldehyde Health risks Health risks Indoor air pollution Indoor air pollution Pore size Pore size Porous materials Porous materials Toluene Toluene Volatile organic compounds Volatile organic compounds
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GB/T 7714 | Zhang, Hongwei , Wu, Guanghui , Liu, Qunhong et al. Bifunctional Cu-incorporated carbon nanospheres via in-situ complexation strategy as efficient toluene adsorbents and antibacterial agents [J]. | Chemosphere , 2024 , 349 . |
MLA | Zhang, Hongwei et al. "Bifunctional Cu-incorporated carbon nanospheres via in-situ complexation strategy as efficient toluene adsorbents and antibacterial agents" . | Chemosphere 349 (2024) . |
APA | Zhang, Hongwei , Wu, Guanghui , Liu, Qunhong , Liu, Zhichen , Yang, Qin , Cui, Qingyan et al. Bifunctional Cu-incorporated carbon nanospheres via in-situ complexation strategy as efficient toluene adsorbents and antibacterial agents . | Chemosphere , 2024 , 349 . |
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The heterogeneous selective hydrogenation of nitrile butadiene rubber (NBR) is an efficient method to generate high value-added hydrogenated NBR. Nevertheless, the inherent large molecular size and high spatial hindrance of polymers lead to poor activity and metal loss. Herein, we report a simple support ammonia pretreatment strategy for the synthesis of efficient N-doped Pd catalyst and applied for the NBR hydrogenation. The results reveal that N doping enhances electron transfer from the support to Pd more effectively than oxygen-rich vacancy support, thereby substantially enhancing the electron cloud density and stability of the Pd sites. The formation of more electron-rich Pd sites not only significantly enhances the adsorption-activation ability of C=C and H2, but also lowers the apparent activation energy of the reaction. As a result, the Pd/N-TiO2-R demonstrates best activity with a hydrogenation degree (HD) of 98 % and a TOF value of 335 h-1, significantly higher than that of Pd/TiO2-R (HD=83 %, 282 h-1) and Pd/TiO2 (HD=74 %, 204 h-1). This strategy will provide new inspiration to improve the activity and stability of Pd/TiO2 catalysts for the hydrogenation of unsaturated polymers.
Keyword :
Electron density Electron density Hydrogenation Hydrogenation N doping N doping Oxygen vacancies Oxygen vacancies Pd catalyst Pd catalyst
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GB/T 7714 | Wang, Shidong , Fan, Benwei , Ge, Bingqing et al. Regulating the Electronic Structure of Pd Nanoparticles on NH3-Pretreated Nano-Flake TiO2 for Efficient Hydrogenation of Nitrile Butadiene Rubber [J]. | CHEMCATCHEM , 2024 , 16 (23) . |
MLA | Wang, Shidong et al. "Regulating the Electronic Structure of Pd Nanoparticles on NH3-Pretreated Nano-Flake TiO2 for Efficient Hydrogenation of Nitrile Butadiene Rubber" . | CHEMCATCHEM 16 . 23 (2024) . |
APA | Wang, Shidong , Fan, Benwei , Ge, Bingqing , Zhang, Hongwei , Hu, Cejun , Cui, Qinyang et al. Regulating the Electronic Structure of Pd Nanoparticles on NH3-Pretreated Nano-Flake TiO2 for Efficient Hydrogenation of Nitrile Butadiene Rubber . | CHEMCATCHEM , 2024 , 16 (23) . |
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C9石油树脂(C9PR)是由乙烯裂解副产物C9馏分聚合而成的热塑性树脂,经加氢改性后可以制得色度浅、抗氧化稳定性高、相容性好的高附加值氢化石油树脂(HC9PR).但C9PR分子量大、空间位阻高且原料中含有硫化物等杂质易使催化剂中毒失活,因此加氢难度极大.为了同时实现C9PR的加氢和脱杂,采用化学还原法结合球磨法制备了非晶态NiP@γ-Al2O3催化剂.表征结果显示,该催化剂具有较大的比表面积、富含Niδ+活性物种、较多的活性位数量,并对C=C键具有较强的吸附能力.对其进行C9PR加氢性能评价,结果显示非晶态NiP@γ-Al2O3催化剂表现出优异的加氢活性(加氢度98.35%)和脱硫活性(硫含量从122.80 μg/g降低至8.00 μg/g),明显优于利用程序升温还原法结合球磨法制备的不同晶型磷化镍催化剂.此外,经过连续100 h的反应,该催化剂仍能保持较高的加氢度,表明其具有良好的稳定性.
Keyword :
加氢 加氢 球磨法 球磨法 石油树脂 石油树脂 脱硫 脱硫 非晶态磷化镍 非晶态磷化镍
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GB/T 7714 | 胡德政 , 王榕 , 王世栋 et al. 兼具加氢和脱硫活性的富含Niδ+非晶态NiP@γ-Al2O3催化剂的构筑及其用于石油树脂加氢的性能研究 [J]. | 化工学报 , 2024 , 75 (9) : 3152-3162 . |
MLA | 胡德政 et al. "兼具加氢和脱硫活性的富含Niδ+非晶态NiP@γ-Al2O3催化剂的构筑及其用于石油树脂加氢的性能研究" . | 化工学报 75 . 9 (2024) : 3152-3162 . |
APA | 胡德政 , 王榕 , 王世栋 , 杨文菲 , 张宏伟 , 袁珮 . 兼具加氢和脱硫活性的富含Niδ+非晶态NiP@γ-Al2O3催化剂的构筑及其用于石油树脂加氢的性能研究 . | 化工学报 , 2024 , 75 (9) , 3152-3162 . |
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