Catalysis Letters最新文献

{"title":"Effect of the Preferential Expose of Cobalt (111) Facet and its Collaborative Crystal Facet on the Hydrogenation of 4-Nitrophenol","authors":"Mailidan Wumaer,&nbsp;Jiakun Ai,&nbsp;Rahima Abdulla,&nbsp;Mustafa Akbar,&nbsp;Jide Wang","doi":"10.1007/s10562-025-05109-2","DOIUrl":"10.1007/s10562-025-05109-2","url":null,"abstract":"<div><p>Cobalt-based composites have demonstrated promising catalytic potential for organic pollutant degradation. However, the influence of exposed basal facets on their catalytic activity remains insufficiently explored. In this study, Co@CN, Cu/Co@CN, and Zn/Co@CN composites with preferentially exposed Co(111), Cu(111)/Co(111), and Co(111)/Zn(002) facets, respectively, were synthesized via a facile hydrothermal method. The facet-dependent catalytic performance and reaction mechanisms were systematically investigated through the reduction of 4-nitrophenol (4-NP). Experimental results combined with density functional theory (DFT) calculations revealed that the Co(111) facet was identified as a critical determinant of both catalytic activity and reaction pathways. Furthermore, we also tried to reveal how the preferential growth of co-exposed facets (Cu(111)/Co(111) and Co(111)Zn(002)) modulate catalytic activity and reaction pathways. As a results, the Cu/Co@CN with preferential exposed facet Cu(111)/Co(111) achieved increasing efficiency in reducing 4-NP to 4-aminophenol (4-AP) within 90s, with a pseudo-first-order rate constant (k) of 0.720 min^-1. Revealing that the synergy between Cu(111) and Co(111) exemplifies how crystal facets synergistically influenced to catalytic activity and reaction process. Moreover, the catalysts also showed durability over six cycles. The outcomes of this study provide new insights into comprehensiveness exposed crystal plane dependent activity and the design of efficient transition-metal catalysts using the facet strategy for effective degradation of certain pollutants in wastewater.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic Enhancement of n-Heptane Cracking over Fe Modified Plate-Like ZSM-5 Zeolite for Propylene Production","authors":"Weijiong Dai,&nbsp;Linquan Li,&nbsp;Zongqiang Liu,&nbsp;Jing Zhao,&nbsp;Yan Wang,&nbsp;Jiajun Zheng,&nbsp;Ruifeng Li","doi":"10.1007/s10562-025-05125-2","DOIUrl":"10.1007/s10562-025-05125-2","url":null,"abstract":"<div><p>In the catalytic cracking of naphtha to olefins, the catalytic performance of ZSM-5 zeolite catalyst is affected by both the diffusion property and acidity of zeolite catalyst, and it is of great significance to enhance the catalytic performance of zeolite by adjusting the two factors reasonably. In this work, Fe was in situ introduced into the synthesis system by ammonium fluoride-assisted route, and plate-like ZSM-5 zeolites with different Fe contents were effectively prepared. The dimension along the <i>b</i>-axis of the plate-like zeolite crystal was tuned around at 100 nm. The XRD and UV-vis analysis demonstrate the effective incorporation of Fe species into ZSM-5 framework. The acidity characterization indicates that the Fe species can effectively reduce zeolite acid strength. Catalytic cracking of n-heptane was chosen to investigate the catalytic properties of the plate-like zeolites. The plate-like ZSM-5 zeolite can effectively improve propylene selectivity and catalytic stability in comparison with the sample C-Z. Meanwhile, by introducing a small amount of Fe, the contribution of monomolecular reaction can be enhanced and the hydrogen transfer reaction can thus be suppressed, leading to higher propylene yield and improved catalytic stability.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-Assisted Synthesis of Azo-Chalcone Using Porous MOF Catalysts: Insights from DFT and Molecular Docking","authors":"Sameera Sh. Mohammed Ameen,&nbsp;Myasar Kh. Ibrahim,&nbsp;Shireen R. Mohammed,&nbsp;Mohamed Chellegui,&nbsp;Haydar Mohammad-Salim,&nbsp;Khalid M. Omer,&nbsp;Jesus Vicente de Julián-Ortiz","doi":"10.1007/s10562-025-05119-0","DOIUrl":"10.1007/s10562-025-05119-0","url":null,"abstract":"<div><p>Metal-organic frameworks (MOFs)-derived heterogeneous catalysis has gained significant attention for their catalytic efficacy and unique structural features, making them valuable in various organic syntheses by enhancing reaction efficiency, selectivity, and sustainability. MOFs are highly effective catalysts in organic synthesis due to their catalytically active sites, significant surface areas, tunable pore structures, and a wide range of chemical characteristics that enhance selectivity and accelerate reactions. This study introduces the application of a novel MOF (called UoZ-2) as a heterogeneous catalyst for synthesizing a novel azo-chalcone product through the Claisen-Schmidt condensation process. The UoZ-2 acid catalyst is esteemed for its many benefits, such as operating under mild conditions, achieving rapid reaction rates, facilitating straightforward recovery and isolation without diminishing catalytic efficiency after multiple uses, enabling easy product purification, and offering scalability and lower cost for industrial applications. Furthermore, azo-chalcone product synthesis under microwave irradiation conditions achieves a high yield, saving energy and time, which was compared with the traditional reflux method. Ultimately, these outcomes confirm the use of a friendly environmental method. Moreover, the reusable studies exhibited that the catalysts were found to be stable and reusable for up to three cycles without substantial loss of catalytic activity. The synthesized azo-chalcone was thoroughly characterized using spectroscopic techniques, and its biological potential was assessed through molecular docking studies with the HER2 protein. Computational studies, including density functional theory and ADMET analysis, further revealed the synthesized compound’s electronic properties and pharmacokinetic potential. The findings highlight the potential of UoZ-2 as an efficient and sustainable catalyst for the scalable synthesis of biologically relevant chalcones, offering an environmentally friendly alternative to traditional homogeneous catalytic systems.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insight into the Aromatic Production from Furan Derivatives and Ethylene","authors":"Kerong Lu,&nbsp;Juan Sui,&nbsp;Rongrong Zhao","doi":"10.1007/s10562-025-05120-7","DOIUrl":"10.1007/s10562-025-05120-7","url":null,"abstract":"<div><p>The one-pot Diels − Alder cycloaddition/dehydration tandem reaction between furanic compounds and ethylene represents a promising route for synthesizing biomass-derived aromatic hydrocarbons. In this study, a combined approach of density functional theory (DFT) calculations and experimental investigations was employed to elucidate the reaction mechanism of H-Beta zeolite-catalyzed transformations involving furan derivatives (2,5-dimethylfuran, 2-methylfuran, and furan) with ethylene. Computational results revealed that the α-methyl group exerts a dual influence on the tandem reaction. In the Diels-Alder step, the α-methyl group enhances the diene’s electron density, thereby promoting the cycloaddition process. Conversely, the steric hindrance introduced by α-substituents decelerates the addition kinetics. Notably, the activation energy barrier for furan’s Diels-Alder reaction with ethylene was found to be significantly higher than those of 2,5-dimethylfuran and 2-methylfuran, accounting for the observed lower conversion efficiency of unsubstituted furan. Regarding the subsequent dehydration step, the α-methyl group stabilizes the carbocation intermediate, resulting in a substantially reduced energy gap for 2,5-dimethylfuran compared to 2-methylfuran and furan. This stabilization effect accelerates dehydration kinetics and improves <i>p</i>-xylene selectivity. Our findings demonstrate how reagent electronic properties and steric effects collectively govern reaction pathways, offering fundamental insights for rational design of tandem reaction catalysts.</p><h3>Graphical Abstract</h3><p>Renewble synthesis of aromatics (benzene, toluene, <i>p</i>-xylene) via furanic compounds (furan, 2-methylfuran, 2,5-dimethylfuran) and ethene was achieved on HBeta zeolite, and the influence of α-methyl group were investigated experimentally and theoretically.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Liquid-Phase Oxidation of Cyclohexane by Cr/Ti-MWW Zeolite Catalysts for KA Oil Synthesis","authors":"Ximin Wang,&nbsp;Guiying Wu,&nbsp;Siyi Wang,&nbsp;Zhongman Liang,&nbsp;Shengdong Zhu,&nbsp;Fang Jin","doi":"10.1007/s10562-025-05122-5","DOIUrl":"10.1007/s10562-025-05122-5","url":null,"abstract":"<p>The mixed systems of cyclohexanol and cyclohexanone (commonly known as KA oil) are key precursors for the synthesis of caprolactam and adipic acid.The atom planting (AP) and impregnation methods has been used to introduce Ti and Cr sequentially into deboronated MWW zeolite catalysts for cyclohexane liquid-phase oxidation, and high KA oil selectivity was obtained. The highly dispersed Cr species as the active site for cyclohexane oxidation were made by introduction of tetra-coordinated Ti species into the zeolite skeleton through the AP method. The catalysts were characterized using XRD, FT-IR, UV-Vis, contact angle and other methods. The results show that the hydrophilicity of the zeolites, the polarity of the solvents, and the metal loading have significant effects on the cyclohexane conversion and the selectivity of KA oil. Through continuous optimization of the reaction conditions, cyclohexane conversion and KA oil selectivity of 25.8% and 99.4% were obtained, respectively.</p>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical Synthesis of 3,3′-Diamino-4,4′-azofurazan in Different Electrode and Electrolyte Systems","authors":"Huichao He,&nbsp;Xiaoxue Fu,&nbsp;Yujie Guo,&nbsp;Gaili Ke","doi":"10.1007/s10562-025-05113-6","DOIUrl":"10.1007/s10562-025-05113-6","url":null,"abstract":"<div><p>Since the traditional approaches for 3,3’-diamino-4,4’-azofurazan (DAAF) synthesis are not environment-friendly and economical enough, the development of green and low-cost approaches for the synthesis of DAAF is valuable and significant. Herein, the electrochemical synthesis of DAAF from the oxidation of 3 4-diaminofurazan (DAF) was studied in different electrode and electrolyte systems. It was found that the pH of alkaline aqueous electrolyte, the solvent of electrolyte and electrode play important role in DAF oxidation into DAAF. In an electrochemical cell with graphite sheet anode, Pt wire cathode and DAF/ ⁿBu₄NBF₄/acetonitrile electrolyte, the optimal DAAF yield of 63% and faradic efficiency above 60% (at 1.80 V vs. Ag/AgCl) were achieved. Mechanism investigations revealed that the electrochemical synthesis of DAAF in such an electrochemical cell is originated from the direct oxidation of DAF on graphite anode, not involving radical pathway.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the SCR Activity and Resistance To Alkali Metal Poisoning of Nb-doped CeVWTi Catalyst","authors":"Jiahao Wei,&nbsp;Gonggang Sun,&nbsp;Tianzhu Shao,&nbsp;Mingyong Hou,&nbsp;Qi Wang,&nbsp;Xinbao Li","doi":"10.1007/s10562-025-05111-8","DOIUrl":"10.1007/s10562-025-05111-8","url":null,"abstract":"<div><p>Alkali metals have severe detrimental effects on the SCR catalytic activity of V₂O₅-WO₃/TiO₂. Ce-modified is one of the more effective catalyst modification strategies currently available. Based on this, CeVWTi catalysts doped with different amounts of Nb were prepared and the resistance to alkali metals was tested to explore feasible solutions for mitigating alkali metal poisoning. The activity test results indicated that the doping of Nb had significant effects on the catalytic activity and alkali metal tolerance. The NO conversion of Nb_0.06CeVWTi reached 72.6% at 300 °C with a GHSV of 2 × 10⁵ h^− 1, which was 16.6% higher than that of the CeVWTi. After being poisoned by 1 wt% KCl, Nb_0.06CeVWTi still maintained 99.2% NO conversion at 350 °C. Characterization results showed that the redox capability of Nb_0.06CeVWTi was improved, and Nb_0.06CeVWTi maintained the redox performance to the maximum extent even after KCl loading.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cellulose-Tethered Triazine-Palladium Nanocatalyst for Carbon-Carbon Bond Formation Reaction and Nitroarene Reduction","authors":"Kiran James,&nbsp;Vishal Kandathil,&nbsp;Haritha Jalaja Raghavan,&nbsp;Grigory Mathew,&nbsp;Narayanapillai Manoj","doi":"10.1007/s10562-025-05114-5","DOIUrl":"10.1007/s10562-025-05114-5","url":null,"abstract":"<div><p>This study presents the development of a novel triazine-palladium nanocatalyst, Tz@cell-Pd, anchored on cellulose, a sustainable, cost-effective, abundant, environmentally benign, non-toxic material that serves as an ideal heterogeneous support for metallic nanoparticles (NPs), through a multistep approach. The prepared nanocatalyst was extensively characterized with multiple physicochemical analytical techniques to elucidate the physical and chemical properties of the Tz@cell-Pd nanocatalyst. The Tz@cell-Pd nanocatalyst demonstrated exceptional catalytic activity and high selectivity in both Hiyama coupling as well as in nitroarene reduction reactions under mild conditions. Also, the catalyst displayed high thermal stability and recyclability, allowing for easy recovery through simple filtration or ultracentrifugation from the reaction, while preserving its efficacy for subsequent cycles. The recovered catalyst remains effective for at least ten cycles in Hiyama coupling and six cycles in nitroarene reduction without any substantial loss of activity.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, Characterization, and Optical Properties of Mg²⁺ and Ni²⁺ Doped ZnO Ceramic Ultrafine Fibers","authors":"Leonardo G. de Medeiros,&nbsp;Joyce M. P. Silva,&nbsp;Alan J. L. de Melo,&nbsp;Marcio D. Teodoro,&nbsp;Mauricio R. D. Bomio,&nbsp;Loong-Tak Lim,&nbsp;Fabiana V. Motta","doi":"10.1007/s10562-025-05115-4","DOIUrl":"10.1007/s10562-025-05115-4","url":null,"abstract":"<div><p>Photocatalysts are crucial for environmental remediation due to their ability to generate reactive oxidizing species under light irradiation. In this study, zinc oxide (ZnO) ultrafine fibers were synthesized via electrospinning followed by calcination, and doped with nickel (Ni) and magnesium (Mg) to enhance their photocatalytic performance. The fibers maintained the wurtzite ZnO crystalline structure after doping, while exhibiting reduced crystallite size and, in some cases, increased surface area—factors that contributed to improved photocatalytic activity. Photocatalytic performance was evaluated through the degradation of methylene blue (MB) and crystal violet (CV) dyes under UV and solar irradiation. The sample doped with 8% Mg achieved over 90% degradation efficiency of MB under UV light. In contrast, the co-doped sample with 2% Mg and Ni showed enhanced activity under sunlight, highlighting its potential for solar-driven water treatment, including in reuse cycles. Characterization techniques including XRD, SEM, XPS, UV–Vis, PL, and BET supported these findings. These results demonstrate that metal-doped ZnO ultrafine fibers possess optimized structural and optical properties, making them promising candidates for sustainable environmental remediation technologies.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PME@Mn as the Effective Catalyst for the Synthesis of Quinazolinones and Triazine Derivatives Through Acceptorless Dehydrogenation Coupling","authors":"Hao Wu,&nbsp;Bin Pan,&nbsp;Jiahao Li,&nbsp;Dawei Wang","doi":"10.1007/s10562-025-05106-5","DOIUrl":"10.1007/s10562-025-05106-5","url":null,"abstract":"<div><p>Ligand design has garnered significant attention in catalytic reaction development. This study reports the synthesis of novel polyazo ligands and their application in heterogeneous catalysis for the efficient and sustainable synthesis of diverse organic compounds. A novel pyrimidinyl pyrazole-based porous organic polymer was designed and synthesized. The resulting corresponding manganese composite PME@Mn was subsequently prepared and evaluated for its catalytic activity in the synthesis of quinazolinones and triazine derivatives through the acceptorless dehydrogenation coupling. It was disclosed that PME@Mn catalytic system exhibited quite broad substrate scope and high stability. In addition, this PME@Mn catalyst could be recycled and reused without a manifest loss of catalytic activity for at least five times and revealed potential application value.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 8","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}