Catalysis Letters最新文献

{"title":"Confined Growth of MOF-808 in Hollow Mesoporous Silica Spheres Enables Efficient Catalytic Transfer Hydrogenation of Furfural","authors":"Xiao Ma,&nbsp;Guangxing Wang,&nbsp;Ting Xu,&nbsp;Lu Feng,&nbsp;Rundong Zhou,&nbsp;Cuiqin Li,&nbsp;Feng Li","doi":"10.1007/s10562-026-05400-w","DOIUrl":"10.1007/s10562-026-05400-w","url":null,"abstract":"<div><p>Catalytic transfer hydrogenation (CTH) of furfural to furfuryl alcohol is a pivotal strategy for valorizing biomass-derived platform molecules. Herein, we report the design of a yolk-shell MOF-808@hollow mesoporous silica spheres (MOF-808@HMSS) catalyst, where MOF-808 nanocrystals are uniformly confined within the internal cavities of HMSS. Compared to pure MOF-808, the spatial confinement effect imposed by HMSS induces the formation of smaller MOF-808 nanocrystals, increasing the density of accessible active sites. The mechanically robust HMSS shell significantly enhances the structural integrity of the catalyst by mitigating mechanical attrition and suppressing leaching of active components during reaction. Notably, the unique yolk-shell architecture creates a confined nanoscale microenvironment that promotes efficient adsorption and activation of reactants at catalytic centers. Consequently, MOF-808@HMSS exhibits markedly superior performance in CTH of furfural as well as higher reusability and cycling stability compared to pure MOF-808. Detailed characterization reveals abundant Lewis acid sites with a minor proportion of basic sites in MOF-808@HMSS. Selective poisoning experiments confirm that Lewis acid sites play a predominant role in the Meerwein-Ponndorf-Verley reaction, while synergistic interplay between acidic and basic sites enhances reactant adsorption and facilitates <i>i</i>-propanol deprotonation, collectively accelerating the overall CTH process.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829979","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":"Doping S Tailors the Electronic Structure of CuBiOx Catalyst for Selective CO2 Electroreduction to CO","authors":"Kun Tao,&nbsp;Chao Zhao,&nbsp;Wenya Yu,&nbsp;Shengye Hu,&nbsp;Hui Xue,&nbsp;Mengmeng M. Zhang","doi":"10.1007/s10562-026-05399-0","DOIUrl":"10.1007/s10562-026-05399-0","url":null,"abstract":"<div><p>Converting CO₂ into valuable chemicals is a sustainable way to address the energy and environmental crisis, yet achieving high selectivity toward CO remains challenging. Here, a S-doped copper-bismuth oxide (S-CuBiO_x) catalyst with a hierarchical structure was synthesized via a facile solution method toward selectively producing CO from CO₂. The prepared S-CuBiO_x exhibits a 91.3% CO Faradic efficiency at −0.9 V_RHE in an H-type cell with 0.5 M KHCO₃ solution, delivering a 3.8-fold enhancement compared to the undoped CuBiO_x, while decreasing the H₂ and HCOOH by-products to 2.6% and 4.5%, respectively. The doped-S can be responsible for the excellent CO selectivity, namely, the S dopant induces S-M-O (M = Cu or Bi) bond formation and tunes the local electronic structure of S-CuBiO_x, thus benefiting *COOH formation/stabilization and accelerating the reaction kinetics toward CO. This work provides a rational design strategy for steering CO₂RR selectivity toward CO via non-metal heteroatom doping in bimetallic oxide systems.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829894","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":"Research on the Optimization of One-Step Hydrothermal Synthesis Process to Synchronously Enhance the Low-Temperature Activity and N2 Selectivity of the Aging-Resistant Cu-SAPO-34 Catalyst","authors":"Bin Guan,&nbsp;Zhongqi Zhuang,&nbsp;Lei Zhu,&nbsp;Tiankui Zhu,&nbsp;Shiying Chang,&nbsp;Jiangli Ma,&nbsp;Rong Wang,&nbsp;Dongxia Yang,&nbsp;Hanshi Qu,&nbsp;Bingqian Tan,&nbsp;Zhen Huang","doi":"10.1007/s10562-026-05404-6","DOIUrl":"10.1007/s10562-026-05404-6","url":null,"abstract":"<div><p>The NH₃-SCR technology using ammonia as a reducing agent is an important technology for controlling the NO_<i>x</i> emissions of diesel engines at present. Considering the actual operating conditions of the engine and the regeneration of the DPF upstream of the SCR system, the NH₃-SCR catalyst should have a wide active temperature window, high nitrogen selectivity, and good hydrothermal aging stability. The small-pore molecular sieve catalyst Cu-SAPO-34 has attracted widespread attention due to its good low-temperature activity and high-temperature hydrothermal aging stability. However, the low-temperature hydrothermal aging stability of Cu-SAPO-34 is a key issue that needs to be addressed. Aiming to find a catalyst with excellent NH₃-SCR performance and low-temperature hydrothermal aging stability, this paper prepared the Cu-SAPO-34 molecular sieve catalyst by the one-step hydrothermal synthesis method, and tested its SCR performance and characterized its physical and chemical properties. In this work, the conditions of the one-step synthesis method were optimized. By setting different calcination temperatures and calcination heating rates, Cu-SAPO-34 catalysts with different calcination temperatures and heating rates were prepared. Then, SCR performance tests and characterizations including BET and XRD were carried out. The results show that the calcination temperature and heating rate have a significant impact on the SCR performance of the catalyst. When the calcination temperature is 700 °C and the heating rate is 5 °C/min, the catalyst has a large specific surface area and pore volume, and a relatively high CHA crystallinity, which endows the catalyst with excellent NH₃-SCR performance.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829933","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":"Fabrication of Highly Active and Stable Functionalized Polystyrene Catalysts for Cycloaddition of CO2 with Propylene Oxide","authors":"Xinhui Hu,&nbsp;Yanhong Quan,&nbsp;Haidong Li,&nbsp;Jun Ren","doi":"10.1007/s10562-026-05396-3","DOIUrl":"10.1007/s10562-026-05396-3","url":null,"abstract":"<div><p>CO₂ activation represents a pivotal step in the CO₂ cycloaddition reaction with propylene oxide (PO) to form propylene carbonate (PC). This study prepared a chlorine-functionalized strongly alkaline polystyrene (CPS) catalyst via copolymerization and a TEAB/SiO₂ catalyst via silane coupling for CO₂ cycloaddition reactions. The CPS catalyst achieves nearly complete PO conversion (99.8%) with high selectivity (99.6%) towards PC and maintains a PC yield &gt; 94% even after 10 reaction cycles. In contrast, the TEAB/SiO₂ exhibits rapid deactivation, with the PC yield declining from 66.8% to 5.1% after three cycles. Dynamically, the CPS catalyst exhibited a marked reduction in activation energy (20.1 kJ·mol⁻¹) compared to TEAB/SiO₂ (32.9 kJ·mol⁻¹), corroborating CO₂ activation through covalently anchored quaternary ammonium groups, which benefited from the higher alkalinity (2.65 mmol·g⁻¹). Moreover, the outstanding stability of the CPS catalyst arises from the robust crosslinked framework of polystyrene and divinylbenzene. This work provides a strategic approach for designing alkaline catalysts and establishes a novel pathway to develop high-performance alternatives to ionic liquids for CO₂ activation in the cycloaddition reaction between CO₂ and PO.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830160","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":"Investigation of the Reusability of ZSM-5 and β-Zeolite Catalysts in the Thermo-catalytic Cracking of Fischer–Tropsch Wax","authors":"Dominik Horváth,&nbsp;Szabina Tomasek,&nbsp;Tatjána Juzsakova,&nbsp;Attila Egedy,&nbsp;Ágnes Bárkányi,&nbsp;Norbert Miskolczi","doi":"10.1007/s10562-026-05385-6","DOIUrl":"10.1007/s10562-026-05385-6","url":null,"abstract":"<div><p>In this study, catalytic cracking of Fischer–Tropsch wax was carried out in a batch reactor system on two different zeolite catalysts: ZSM-5 and β-zeolite, to evaluate their performance and reusability. After each run, the liquid products were separated into naphtha and middle distillate fractions, and various properties such as product yields, composition, cold flow properties, distillation characteristics and cetane index were determined. Results showed that β-zeolite maintained higher catalytic activity and stability than the other zeolite. ZSM-5 began to deactivate after the fourth reuse, leading to incomplete conversion and a selectivity shift toward heavier hydrocarbons, as well as higher naphtha distillation temperatures. Catalyst reuse caused the cold flow properties of middle distillates to deteriorate, while the cetane index increased due to molecular changes. In contrast, β-zeolite achieved full conversion even after multiple reuses, with minimal variation in product structure or distillation behavior. Pour point of middle distillate remained below − 15 °C throughout. After regeneration by calcination, β-zeolite maintained stable performance for up to three additional cycles. Regression models were fitted to the measurement data, using polynomic regression, and artificial neural networks. The resulting models can be used to accurately predict the important factors for different catalytic cycles.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10562-026-05385-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Normal-Alkane Modeling of Polyolefin Recycling over Pt-Modified Zeolites","authors":"Xi Lin,&nbsp;Yuan Hu,&nbsp;Hao Xu,&nbsp;Lei Che,&nbsp;Zezhou Chen","doi":"10.1007/s10562-026-05387-4","DOIUrl":"10.1007/s10562-026-05387-4","url":null,"abstract":"<div><p>Polyolefins represent the largest fraction of global plastic waste, yet their chemical inertness poses a major challenge for recycling. In this study, normal‑alkane modeling was employed to investigate the catalytic transformation of linear alkyl chains over two Pt‑modified zeolites, Pt/USY and Pt/ZSM‑5, using n‑dodecane and n‑nonane as representative long‑ and short‑chain analogs. Comprehensive characterization revealed that Pt dispersion and zeolite pore topology jointly modulate acidity and metal-acid synergy, thereby steering product selectivity and reaction pathways. Pt/USY, with its larger pore volume and moderate acidity, promoted dehydrogenation and cracking, yielding higher fractions of alkenes and branched alkanes while suppressing excessive aromatization. In contrast, Pt/ZSM‑5 exhibited stronger hydrogenation activity, converting olefinic intermediates into saturated alkanes and cycloalkanes while reducing aromatic formation. Comparative analysis of n‑dodecane and n‑nonane demonstrated that longer alkyl chains undergo deeper cracking and secondary reactions, leading to higher yields of light hydrocarbons, aromatics, and coke, whereas shorter chains are less reactive and more resistant to cyclization. Both Pt‑modified catalysts showed reduced coke deposition relative to their parent zeolites. These findings provide mechanistic insights into Pt–zeolite synergy and chain‑length effects, offering guidance for the rational design of advanced catalysts to enable efficient chemical recycling of polyolefin wastes into tailored fuels and chemicals.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829505","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":"Retraction Note: Solvothermal Synthesized Potassium Niobium Tungstate K2Nb10W7O47 Nanoparticles for Efficient Electrocatalytic Water Splitting and Supercapacitance Activity","authors":"Noor-Us-Sabah,&nbsp;Muhammad Awais,&nbsp;Sidra Aslam,&nbsp; Javaria,&nbsp;Bakhat Ali,&nbsp;Misbah Mirza,&nbsp;Muhammad Safdar","doi":"10.1007/s10562-026-05402-8","DOIUrl":"10.1007/s10562-026-05402-8","url":null,"abstract":"","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829561","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":"Dual-Temperature Crystallization Synthesis of Secondary-Growth SAPO-34 Molecular Sieve with Adjusted Silicon Content for Superior MTO Catalysis","authors":"Haijun Zhang,&nbsp;Yuwei Li,&nbsp;Yulong Zheng,&nbsp;Lei Chen,&nbsp;Gang Yang","doi":"10.1007/s10562-026-05397-2","DOIUrl":"10.1007/s10562-026-05397-2","url":null,"abstract":"<div><p>Based on the dual-temperature method (100 ℃ for 6 h and then 200 ℃ for 12 h), the novel surface modification strategy involving secondary growth with the pre-synthesized nano-flake SAPO-34 seeds is presented for the synthesis of hierarchical pore SAPO-34. The effective regulation of the silicon content in the initial gel modulated the pore architecture and the acid strength of the SAPO-34 product. The optimized catalyst demonstrated a superior selectivity for the light olefins and a suppression of the coke deposition, leading to a prolonged catalytic lifetime. The catalytic performance showed a trend of first increasing and then decreasing with the silicon content. The optimal catalyst demonstrated an excellent selectivity of 95.88% and an extended lifetime of 600 min.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147808185","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":"Low-Loading Fe Single-Atom Sites Ordered Honeycomb-Structured Carbon-Based Catalyst for High-Performance Flexible Zinc-Air Batteries","authors":"Bote An,&nbsp;Xinran Song,&nbsp;Shu Wang,&nbsp;Lu Yang,&nbsp;Peifan Qu,&nbsp;Yubin Zhang,&nbsp;Yan Liu,&nbsp;Yanli Nan","doi":"10.1007/s10562-026-05395-4","DOIUrl":"10.1007/s10562-026-05395-4","url":null,"abstract":"<div><p>Non-noble metal single-atom catalysts (SACs) have emerged as promising alternatives to Pt-based catalysts for the oxygen reduction reaction (ORR) due to their high atomic utilization and low cost. Nevertheless, the facile aggregation of metal atoms during synthesis severely reduces the density of active sites, thereby restricting their practical application in metal-air batteries. Herein, we fabricated a highly dispersed Fe single-atom catalyst (Fe-N-C) anchored on honeycomb-structured carbon (HCC). The synergistic effect of low iron content, physical confinement of honeycomb carbon, and chemical anchoring of nitrogen sites effectively inhibits metal atom aggregation and maximizes the atomic dispersion of Fe active sites. Benefiting from the ordered honeycomb porous structure and high atomic utilization, the as-synthesized Fe-N-C exhibits an outstanding half-wave potential of 0.875 V even at a low Fe loading. Notably, when applied as the air cathode in a flexible solid-state zinc-air battery, this catalyst delivers a peak power density of 160.7 mW cm^− 2, outperforming most reported non-noble metal ORR catalysts to date. This work provides a feasible strategy for the fabrication of highly dispersed single-atom catalysts for high-performance flexible energy conversion devices.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147808184","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":"Dendritic Nanosilica Supported Sm2CoMnO6: A Sustainable Catalyst for Green Polymer and Biopolymer Synthesis from CO2","authors":"Ning Xu,&nbsp;Hongtai Chen,&nbsp;Seyed Mohsen Sadeghzadeh","doi":"10.1007/s10562-026-05390-9","DOIUrl":"10.1007/s10562-026-05390-9","url":null,"abstract":"<div><p>The design of catalysts with hierarchical architectures and phase interfaces is crucial for enhancing active site accessibility and catalytic efficiency. In this work, a recyclable nanocatalyst based on Sm₂CoMnO₆ nanoparticles embedded in dendritic fibrous nanosilica (DFNS) was developed using a green and straightforward synthetic strategy. A deep eutectic solvent assisted method was employed to fabricate DFNS with high surface area and a threadlike, dandelion like morphology composed of ultrathin 3D nanosheets and mesoscopic cavities. The large specific surface area originates from the material’s three dimensional hierarchical architecture, which consists of interconnected two dimensional ultrathin layers featuring mesoporous voids. Sm₂CoMnO₆ nanoparticles were successfully incorporated onto DFNS through a simple and efficient synthesis procedure. This environmentally friendly synthesis route avoided the use of toxic solvents or hazardous reagents and utilized natural epoxides as renewable feedstocks. The resulting Sm₂CoMnO₆ DFNS nanocatalyst demonstrated high efficiency in the synthesizing biopolymers and polymers through the reaction of CO₂ with oxetane, epoxide, or limonene epoxide under mild conditions with excellent conversion and selectivity. These findings highlight the dual potential of this nanocatalyst platform for CO₂ fixation and green polymer synthesis, paving the way for integrated carbon capture and material production strategies.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147808199","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}