Catalysis Letters最新文献

{"title":"Electrocatalytic Hydrogen Evolution by Dimeric Metal (M = Co, Cu, Ga) Imidazole-Functionalized Corrole Complexes","authors":"Hai-Xin Xu,&nbsp;De-Yu Guo,&nbsp;Feng Li,&nbsp;Lei Shi,&nbsp;Hao Zhang,&nbsp;Li-Ping Si,&nbsp;Xin-Yan Xiao,&nbsp;Hai-Yang Liu","doi":"10.1007/s10562-026-05423-3","DOIUrl":"10.1007/s10562-026-05423-3","url":null,"abstract":"<div><p>A central task in clean energy conversion involves designing highly efficient electrocatalysts based on non-precious metals for the hydrogen evolution reaction (HER). In this study, three dimeric metal (M = Co (<b>1</b>), Cu (<b>2</b>), Ga (<b>3</b>)) imidazole-functionalized corrole complexes were prepared as electrocatalysts for HER in organic and aqueous media. All three complexes displayed the appreciable HER catalytic activity, among which BPFIC-2Co (<b>1</b>) exhibited the best performance. When TFA or TsOH was used as the proton source, catalytic efficiency (C.E.) and turnover frequency (TOF) followed the sequence <b>1</b> &gt; <b>2</b> &gt; <b>3</b>. Furthermore, the HER processes of complexes <b>1–3</b> likely followed EECC, EECC, and ECEC pathways (E: electron transfer, C: proton coupling), respectively. In neutral aqueous media, complexes <b>1–3</b> achieved HER TOFs of 166.01, 125.60, and 109.12 h⁻¹. Under controlled-potential electrolysis at − 2.15 V, complexes <b>1–3</b> all displayed H₂ Faradaic efficiencies above 80%. Moreover, all catalysts demonstrated excellent stability throughout the electrolysis in both organic and aqueous phase.</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":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173387","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":"Visible-Light-Activated CuFe2O4/Zn-BTC Photocatalyst for Efficient Mineralization and Detoxification of Carbofuran in Industrial Effluents","authors":"Zahid Mahmood,&nbsp;Naseem Abbas,&nbsp;Syed Ali Raza Naqvi,&nbsp;M. Rehan H. Shah Gilani,&nbsp;Fiaz Hussain,&nbsp;Syed Kashif Ali,&nbsp;Shahid Iqbal,&nbsp;Sajid Mahmood,&nbsp;Shaimaa A. M. Abdelmohsen,&nbsp;Sadeem F. Alarfj","doi":"10.1007/s10562-026-05418-0","DOIUrl":"10.1007/s10562-026-05418-0","url":null,"abstract":"<div><p>Growing concern over carbofuran (CBF) contamination present in water bodies has increased the need for effective remediation strategies. Herein, CuFe₂O₄ nanoparticles, Zn-BTC MOF (H₃BTC; 1,3,5-benzenetricarboxylic acid), and CuFe₂O₄/Zn-BTC composite were successfully synthesized and characterized using various analytical techniques to investigate physiochemical and electrochemical properties. These photocatalysts were subsequently employed for the CBF degradation in wastewater. The CuFe₂O₄/Zn-BTC composite degraded(96%) 20 mg/L CBF in 90 min under optimized conditions (0.01 g/L catalyst loading, 7 pH, and light intensity 50 W LED). The superoxide ions (·O₂⁻) and hydroxyl radicals (·OH) were identified as the main oxidants, due to the strong interaction between CuFe₂O₄ and Zn-BTC, which promoted the separation of electrons and holes and increased the number of reactive sites. The photocatalytic activity remained stable in five successive cycles with a slight decrease in efficiency from 96% to 91%. When exposed to real pesticide effluent, total organic carbon (TOC) was reduced 69% and chemical oxygen demand (COD) was reduced 77%. A near complete detoxification of CBF was confirmed by Escherichia coli assays and degradation intermediates were identified by LC-MS, and a plausible reaction pathway was suggested. The results indicate that CuFe₂O₄/Zn-BTC is stable and effective photocatalyst for the removal of CBF from contaminated water.</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":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173331","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 Influence of Manganese Element Doping on Vanadium-Based Catalysts","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/s10562-026-05417-1","DOIUrl":"10.1007/s10562-026-05417-1","url":null,"abstract":"<div><p>The performance of on-board SCR catalysts has been in high demand due to the increasingly stringent vehicle emission requirements. Diesel engines typically have exhaust gas temperatures below 250 °C at cold start and idling; the catalyst carrier’s actual temperature field is uneven, with high-temperature areas ranging from 430 to 530 °C; and high-temperature exhaust gas is also produced during DPF regeneration. Therefore, this work aims to develop composite metal oxide catalysts with a wide active temperature window. Mn-doped vanadium-based SCR catalysts were successfully synthesized via the solution combustion method, and their physicochemical properties and catalytic performance were systematically investigated. Their chemical structure, performance, and physical characteristics were then examined and described. It was discovered that adding Mn significantly increased the catalyst’s low-temperature activity but slightly compromises its high-temperature performance. Between 190 °C and 440 °C, the TiV_0.1Mn_0.1O_<i>x</i> catalyst with <i>r</i> = 0.1 performed the best, with NO_<i>x</i> conversion and N₂ selectivity both exceeding 80%. Mn doping had no discernible impact on the specific surface area, pore volume, or pore diameter, according to BET characterization. The XRD patterns only showed anatase TiO₂ diffraction peaks, suggesting that the active ingredients were widely distributed across the carrier surface. The total acid quantities on the four catalysts’ surfaces were comparable, according to NH₃-TPD curves, and the distribution of acid amounts moved to lower temperatures as the Mn content increased. Some catalysts experienced sintering problems, according to TEM pictures, but their surfaces featured rich pore architectures.</p><h3>Graphical Abstract</h3><p>Schematic diagram of V-Mn SCR catalyst structure and performance regulation</p><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":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173431","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 and Evaluation of Hydrotalcite Supported on Ordered Mesoporous Silica for Application in Biodiesel Production","authors":"Jamila da S. Silva,&nbsp;Renata N. Vilas-Bôas,&nbsp;Julia R. Machado,&nbsp;Gabrielle C. M. dos Santos,&nbsp;Matheus M. Leite,&nbsp;Brenda da S. Gomes,&nbsp;Marisa F. Mendes,&nbsp;Leonardo Lucchetti,&nbsp;Lindoval D. Fernandes,&nbsp;Lindoval D. Fernandes","doi":"10.1007/s10562-026-05420-6","DOIUrl":"10.1007/s10562-026-05420-6","url":null,"abstract":"<p>The growing demand for renewable energy sources has driven the development of sustainable processes for biodiesel production, highlighting the use of heterogeneous catalysts as an alternative to conventional homogeneous systems. In this context, this study aimed to synthesize, characterize, and evaluate the catalytic performance of pure Mg/Al hydrotalcites and those supported on ordered mesoporous silica, investigating the influence of the Mg/Al molar ratio and the support structure on the catalytic performance in the transesterification reaction of soybean oil. However, it provides a systematic structure–property–performance correlation, highlighting the combined influence of Mg/Al ratio and mesoporous support on catalytic behavior, which remains insufficiently explored in the literature. The catalysts were synthesized by coprecipitation, varying the Mg/Al molar ratio (0.20, 0.25, and 0.33), and subsequently calcined at 550 °C to obtain the mixed oxides. Ordered mesoporous silica (SBA-15) was prepared by the sol-gel method and used as a support for the incorporation of the Mg/Al active phase. The materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption (BET), scanning electron microscopy (SEM), and programmed CO₂ desorption (TPD-CO₂), aiming to correlate structural, textural, and acid-base properties with catalytic activity. Catalytic evaluation was performed in the transesterification of soybean oil with methanol, under an oil: methanol molar ratio of 1:20, a temperature of 70 °C, and a reaction time of 5 h, with biodiesel analysis by gas chromatography. S-HT-Mg type catalysts exhibited high catalytic activity, with conversions ranging from 82 to 94%, attributed to a higher density of basic sites. Hydrotalcite catalysts supported on ordered mesoporous silica, on the other hand, exhibited lower conversions (37–50%), indicating that the support influences the accessibility of the active sites. The results confirm the potential of Mg/Al hydrotalcites as promising heterogeneous catalysts for the sustainable production of biodiesel.</p>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10562-026-05420-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173430","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":"Constructing Highly Hydrophobic NiSn-SDB Catalyst Via Facile Physical Mixing for Aqueous Ethanol Upgrading to C6 + Alcohols","authors":"Xiaoyu Li,&nbsp;Jiajin Li,&nbsp;Bo Chen,&nbsp;Xiaoping Wu,&nbsp;Songbai Qiu,&nbsp;Qian Zhang,&nbsp;Tiejun Wang","doi":"10.1007/s10562-026-05408-2","DOIUrl":"10.1007/s10562-026-05408-2","url":null,"abstract":"<div><p>Converting aqueous ethanol into higher alcohols (HAs) serves as a promising and green pathway for synthesizing valuable chemicals and sustainable fuels from renewable resources. Despite its broad potential, direct carbon chain growth of ethanol toward value-add C₆₊ HAs remains a great challenge. In this study, we developed a novel highly hydrophobic NiSn-SDB catalyst utilizing a straightforward physical ball-milling technique. This approach effectively modulates the catalyst's surface hydrophobicity, enhancing the adsorption of alcohol molecules. The optimized NiSn-SDB_1/0.5 catalyst achieved an outstanding catalytic performance with C₆₊ HAs selectivity of 70.7% at 86.4% ethanol conversion rate. Notably, the catalyst demonstrated excellent kinetic efficiency, securing 67.1% ethanol conversion and 68.7% C₆₊ HAs selectivity within only 1-h reaction. The crucial role of hydrophobic SDB modifier was demonstrated, which enhances the adsorption of HAs molecules, thus promoting the cross coupling process to yield C₆₊ HAs. This research presents a highly effective and practical strategy for engineering robust, hydrophobic-modified catalyst for direct aqueous ethanol coupling.</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><p>Efficiently upgrading aqueous bio-ethanol into C₆₊ higher alcohols (sustainable aviation fuel precursors) is highly desirable but severely hindered by mass-transfer resistances and premature intermediate desorption. Herein, we innovatively developed a NiSn-SDB composite catalyst featuring a physical hydrophobic microenvironment. Acting as a microscopic \"molecular trap,\" the SDB polymer grants the catalyst exceptional interfacial tracking capability and robust spatial confinement, successfully overcoming the thermodynamic bottleneck of intermediate desorption. This strategy delivers outstanding performance for C₆₊ alcohol synthesis, offering novel insights into breaking the kinetic limitations of continuous carbon chain propagation via surface microenvironment engineering.</p></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009896","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":"Interfacial Electron Transfer Promotes Acidic Water Electrolysis of Ir-Mo2N by Enhancing Hydroxyl Coverage","authors":"Xinxuan zhang,&nbsp;Zimiao Liu,&nbsp;Yi Feng","doi":"10.1007/s10562-026-05416-2","DOIUrl":"10.1007/s10562-026-05416-2","url":null,"abstract":"<div><p>The commercialization of proton exchange membrane water electrolysis (PEMWE) is impeded by the significant dependence of the anodic oxygen evolution reaction (OER) on limited iridium-based catalysts. Creating electrocatalysts with elevated activity and enhanced Ir atom usage is essential to overcoming this obstacle. Herein, we utilize strong metal-support interactions (SMSI) to uniformly load Ir nanoclusters onto highly conductive and corrosion-resistant one-dimensional molybdenum nitride nanowires, therefore creating a series of low Ir loading Ir_x%-Mo₂N heterostructure bifunctional electrocatalysts. In acidic conditions, the optimum Ir_3.2%-Mo₂N display overpotentials of merely 271 mV and 85 mV to get current densities of 10 mA cm⁻² in OER and hydrogen evolution reaction (HER), respectively, surpassing commercial electrocatalysts and other variants with elevated Ir loadings. Thorough characterization and mechanistic investigations demonstrate substantial interfacial electron transport between Mo₂N and Ir, resulting in charge redistribution at the interface and modulation of the electronic structure at the iridium active sites, which stabilizes the distributed Ir species and significantly optimized the adsorption energy for the essential oxygenated intermediates and hydrogen coverage, hence greatly increasing the intrinsic electrocatalytic activity. This study illustrates that nitride-mediated robust electronic interactions constitute an excellent strategy for developing efficient electrocatalysts with low loading of precious metal.</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":"2026-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009501","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":"Phosphatidylcholine as a Green Catalyst for the Synthesis of Polyhydroquinoline and 1,8-Dioxodecahydroacridine Derivatives","authors":"Roodabeh Azary,&nbsp;Masoumeh Abedini","doi":"10.1007/s10562-026-05354-z","DOIUrl":"10.1007/s10562-026-05354-z","url":null,"abstract":"<div><p>A simple, cost-effective, and green method is reported for the multicomponent synthesis of heterocyclic compounds, specifically 1,8-dioxodecahydroacridine and polyhydroquinoline derivatives, which are important scaffolds in pharmaceutical and medicinal chemistry, using 20 mg of phosphatidylcholine (PC) as a natural and biodegradable catalyst. The reactions were performed under mild conditions, either in water or under solvent-free conditions. The 1,8-dioxodecahydroacridine derivatives were obtained in excellent yields of up to 97% within 50 min, while polyhydroquinoline derivatives were synthesized in yields of up to 95% within only 8 min. The structures of the synthesized compounds were confirmed by melting point and FT-IR analysis. Furthermore, the catalyst could be easily recovered and reused for four consecutive cycles without significant loss of catalytic activity. Overall, this method provides an efficient, practical, and environmentally friendly strategy for the synthesis of valuable heterocyclic compounds.</p><h3>Graphycal 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><p>Application of phosphatidylcholine in multicomponent reactions</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009424","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":"Engineering a High-Performance Co/MPC Catalyst via Microwave-Assisted Pyrolysis for Rapid Atrazine Elimination through PMS Activation","authors":"Mei Wang,&nbsp;Tong Wu,&nbsp;Xianghai Song,&nbsp;Quan Bu,&nbsp;Bingliang Zhou","doi":"10.1007/s10562-026-05412-6","DOIUrl":"10.1007/s10562-026-05412-6","url":null,"abstract":"<div><p>This study presents a high-performance cobalt catalyst supported on microwave-pyrolyzed biochar (Co/MPC) for efficient peroxymonosulfate (PMS) activation to degrade atrazine (ATZ). The microwave-assisted pyrolysis (MWP) technique yielded biochar (MPC) with superior textural properties—specifically, a significantly higher specific surface area (214.18 m²/g) and pore volume (0.46 cm³/g)—compared to conventionally pyrolyzed biochar (BC). This enhanced porous structure facilitated the uniform dispersion of ~5 nm cobalt nanoparticles, resulting in the highly active Co/MPC catalyst. The Co/MPC+PMS system achieved over 99% ATZ degradation within just 4 min, outperforming its conventionally prepared counterpart (Co/BC) (77%). The catalyst demonstrated robust performance across a range of PMS dosages and pollutant concentrations, with minimal interference from coexisting inorganic ions (Cl⁻, SO₄²⁻, NO₃⁻, H₂PO₄⁻, HCO₃⁻) and organic humic acid in the Co/MPC+PMS system. Radical quenching experiments and electron paramagnetic resonance (EPR) analysis identified hydroxyl radicals (⋅OH) and sulfate radicals (SO₄⋅⁻) as the dominant reactive species responsible for the rapid degradation. This work highlights the significant advantage of microwave-assisted synthesis in creating advanced carbon-metal catalysts and offers a highly efficient, stable, and practical solution for the remediation of persistent organic pollutants like ATZ without requiring additional energy input.</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><p>Microwave-assisted preparation of Co/MPC for efficient PMS activation towards atrazine degradation.</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009486","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":"Lanthanum-Strontium-Iron-Copper-Based Perovskite Oxide: Structure-Reactivity Relationships in Catalytic Hydroxylation of Anisole","authors":"Meloth Bhavisha,&nbsp;Ayyamperumal Sakthivel","doi":"10.1007/s10562-026-05414-4","DOIUrl":"10.1007/s10562-026-05414-4","url":null,"abstract":"<div><p>Perovskite oxides are known as promising materials for various catalytic redox processes due to their structural flexibility and tunable electronic properties. In this study, the A-site of the SrFe_1−xCu_xO_3−δ, perovskite lattice was systematically modified to investigate the influence of lanthanum substitution on catalytic performance. Three perovskite materials with the compositions of SrFe_0.7Cu_0.3O_3−δ, La_0.5Sr_0.5Fe_0.7Cu_0.3O_3−δ and LaFe_0.7Cu_0.3O_3−δ, were synthesized by the combustion method using hexamine as fuel and subsequently evaluated for the catalytic hydroxylation of anisole. Powder XRD pattern indicated that LFC crystallized to form orthorhombic perovskite structure. The presence of Fe⁴⁺, Fe³⁺, Cu²⁺ and Cu¹⁺ in the LFC sample was confirmed by XPS analysis. Oxygen-TPD showed peaks corresponding to O₂ desorption from oxygen vacancies, and a high concentration of oxygen vacancies was observed in strontium-containing perovskite. The developed catalyst system showed similar catalytic activity, with anisole conversion of 64% and 63% guaiacol selectivity under optimal reaction conditions. The recyclability analysis revealed that the presence of La reduces the fouling and coke formation, thereby facilitating retention of catalytic activity over several cycles. The above fact is further confirmed by the TGA analysis of the spent catalyst. The SFC and LSFC catalysts showed strong interactions between oxygen vacancies and organic species, which are responsible for the deactivation. The LFC catalyst has fewer oxygen vacancies, and shows better structural stability, reactivity, and coke resistivity. These results highlight the role of A-site substitution in modulating catalytic behaviour, providing insights into the design of coke-resistant perovskite catalysts for biomass-derived components transformations.</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":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009408","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":"Near-Quantitative Electrocatalytic Oxidation of HMF to FDCA Over a NiMoCu Heterostructured Catalyst","authors":"Dongyu Cao,&nbsp;Haitao Gao,&nbsp;Tianyi Wang,&nbsp;Jinbo Chen","doi":"10.1007/s10562-026-05407-3","DOIUrl":"10.1007/s10562-026-05407-3","url":null,"abstract":"<div><p>Developing efficient and stable electrocatalysts is key to converting 5-hydroxymethylfurfural (HMF) into the value-added product 2,5-furandicarboxylic acid (FDCA). Herein, a three-dimensional porous nanosheet-structured nickel-molybdenum-copper (NiMoCu) ternary catalyst was constructed on nickel foam via a two-step electrodeposition strategy coupled with alkaline heat treatment. Characterization (XRD, Raman, TEM, XPS) revealed the homogeneous integration of Ni, Mo, and Cu species at the nanoscale, forming multiple heterointerfaces (MoO₃–CuO/NiOOH). Meanwhile, Cu incorporation refined the MoO₃ crystallite size to 8.2 nm and promoted the in situ formation of amorphous NiOOH containing Ni³⁺ species. Furthermore, the interfacial electron transfer effect optimized charge transport pathways, thereby promoting an efficient HMFOR process. At 1.47 V vs. RHE, this catalyst showed record HMF electrooxidation performance. The HMF conversion was 99%, FDCA selectivity was near 100%, FDCA yield was 98%, and Faradaic efficiency was 98%. After four cycles in a row, the yield dropped by less than 2%. The excellent performance of the NiMoCu catalyst comes from the synergy of its three metals. Ni³⁺ acts as the active center and drives the reaction. Mo⁶⁺ keeps the Ni³⁺ state stable and speeds up charge movement. Cu stops the side oxygen evolution reaction (OER). The OER contribution is under 2%. This work offers a new way to design efficient and stable catalysts for the electrocatalytic conversion of HMF, a key biomass platform compound.</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":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009416","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}