ChemCatChem最新文献_第4页

One-Pot Synthesis of Primary Amides From Benzylic, Heterobenzylic, and Cinnamyl Alcohols Through Biocatalytic Oxidation and Cu(II)-Catalyzed Amidation 生物催化氧化和Cu（II）催化酰胺化一锅法合成苯、杂酶和肉桂醇伯胺

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-21 DOI: 10.1002/cctc.71000

Marco Rabuffetti, Matteo Damian, Vasilis Tseliou, Francesco G. Mutti

{"title":"One-Pot Synthesis of Primary Amides From Benzylic, Heterobenzylic, and Cinnamyl Alcohols Through Biocatalytic Oxidation and Cu(II)-Catalyzed Amidation","authors":"Marco Rabuffetti, Matteo Damian, Vasilis Tseliou, Francesco G. Mutti","doi":"10.1002/cctc.71000","DOIUrl":"https://doi.org/10.1002/cctc.71000","url":null,"abstract":"This article describes a one-pot, two-stage chemoenzymatic strategy for synthesizing aromatic, heteroaromatic, and α,β-unsaturated primary amides from the corresponding alcohols. The approach combines our previously reported catalytically promiscuous oxidation of benzylic, heterobenzylic, and cinnamyl alcohols to nitriles—catalyzed by the M3-5 variant of galactose oxidase (GOx M3-5) from Fusarium sp.—with a Cu(II)-catalyzed amidation using N,N-diethylhydroxylamine. Optimization studies showed that the concentration of Et2NOH critically affects conversion and inhibits the enzyme, thereby preventing both steps from being performed concurrently and requiring their temporal separation into a two-stage process. The substrate scope includes substituted benzyl alcohols, hydroxymethylpyridines, and cinnamyl alcohol, which were converted into the corresponding benzamides, pyridinecarboxamides, and cinnamamide, respectively, with conversions of 7%–70%, as determined by GC and HPLC. Selected reactions were scaled up to 20 mL, affording isolated yields of 38%–63%. Overall, the developed method expands the synthetic toolbox for primary amide synthesis and provides a chemoenzymatic alternative to traditional nitrile hydration or amidation approaches.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.71000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasma Etching of Flexible NiS/Carbon Nanofiber Composites for Enhanced Lithium Storage Kinetics 等离子体刻蚀柔性NiS/碳纳米纤维复合材料增强锂存储动力学

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-21 DOI: 10.1002/cctc.71084

Minghong Liu, Mengjia Li, Xiang Li, Xiaoyun Feng, Haitao Wang, Zhaohui Hou, Junlin Huang, Wei Wang

{"title":"Plasma Etching of Flexible NiS/Carbon Nanofiber Composites for Enhanced Lithium Storage Kinetics","authors":"Minghong Liu, Mengjia Li, Xiang Li, Xiaoyun Feng, Haitao Wang, Zhaohui Hou, Junlin Huang, Wei Wang","doi":"10.1002/cctc.71084","DOIUrl":"https://doi.org/10.1002/cctc.71084","url":null,"abstract":"<div>\u0000 \u0000 Flexible lithium-ion batteries (FLIBs) require electrode materials that simultaneously integrate mechanical flexibility, high electrochemical activity, and structural robustness. In this study, a plasma etching strategy is employed to regulate electrospun NiS/carbon nanofiber (NiS/CNFs) composite membranes, yielding flexible Etch-NiS/CNFs electrodes with tailored porous and defect-rich interfaces. Controlled NH3 plasma treatment selectively removes surface amorphous carbon while preserving the interconnected carbon nanofiber conductive framework, thereby maintaining mechanical integrity and structural continuity. Consequently, the exposed NiS active phase and plasma-induced surface defects generate a hierarchical mesoporous architecture with enhanced electrolyte accessibility. The Etch-NiS/CNFs sample exhibits reduced charge-transfer resistance, shortened relaxation time, and improved lithium-ion diffusion kinetics. Benefiting from the synergistic effects of interfacial modification and structural preservation, it delivers a high reversible capacity of 670.1 mAh g−1 after 600 cycles at 1 A g−1, along with excellent rate capability. This study presents a novel plasma-induced porous defect strategy to enhance the performance of transition metal sulfide materials for flexible energy storage systems.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of Pt/CeO2@MXene Composite Catalysts for Enhanced Light-Driven Thermocatalytic Oxidation of Toluene Pt/CeO2@MXene复合催化剂的构建及其对甲苯的光催化氧化作用

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-21 DOI: 10.1002/cctc.71079

Shudi Yang, Zhiwei Wang, Man Zhang, Yuxi Liu, Hongxing Dai, Jiguang Deng

{"title":"Construction of Pt/CeO2@MXene Composite Catalysts for Enhanced Light-Driven Thermocatalytic Oxidation of Toluene","authors":"Shudi Yang, Zhiwei Wang, Man Zhang, Yuxi Liu, Hongxing Dai, Jiguang Deng","doi":"10.1002/cctc.71079","DOIUrl":"https://doi.org/10.1002/cctc.71079","url":null,"abstract":"<div>\u0000 \u0000 Volatile organic compounds (VOCs) can adversely affect both environmental systems and human health. In response to the growing demand for efficient and energy-saving purification technologies, light-driven thermocatalytic oxidation has gradually emerged as a promising alternative, as it enables the direct utilization of solar energy to drive catalytic reactions. In this work, a composite catalyst combining Pt/CeO2 with MXene was deliberately designed, aiming to couple the strong thermocatalytic activity of Pt/CeO2 with the excellent photothermal conversion capability of MXene. When exposed to an irradiation intensity of 580 mW/cm2, the optimized sample (0.16 Pt/CeO2@MXene) delivered a toluene conversion of 95%. Such performance can be reasonably linked to its efficient light-to-heat conversion behavior, enhanced reducibility under mild conditions, and the abundant presence of adsorbed oxygen species. Furthermore, the photothermal catalytic activity of 0.16 Pt/CeO2@MXene is identical to its thermocatalytic activity at the same reaction temperature, and no conventional photocatalytic activity is detected. This indicates that the catalytic reaction follows a light‑driven thermocatalytic mechanism, and the Vis-IR region of the solar spectrum provides the primary energy for heat generation in the system. In summary, this work presents a practical approach to developing efficient photothermal catalysts for VOC abatement under mild conditions.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149047903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2 Capture and Utilization: Selective Synthesis of 2-Oxazolidinone by Employing Frustrated Lewis Pair-Enriched Zn-NC Catalyst Derived From MOF CO2捕获与利用：MOF衍生的挫折Lewis对富集Zn-NC催化剂选择性合成2-恶唑烷酮

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-21 DOI: 10.1002/cctc.71076

Shanmugam Sujith, Murudappa Harsha, Hubli Krishnaprasad Meghana, Kalathiparambil Rajendra Pai Sunajadevi, Ganapati Venkatesh Shanbhag

{"title":"CO2 Capture and Utilization: Selective Synthesis of 2-Oxazolidinone by Employing Frustrated Lewis Pair-Enriched Zn-NC Catalyst Derived From MOF","authors":"Shanmugam Sujith, Murudappa Harsha, Hubli Krishnaprasad Meghana, Kalathiparambil Rajendra Pai Sunajadevi, Ganapati Venkatesh Shanbhag","doi":"10.1002/cctc.71076","DOIUrl":"https://doi.org/10.1002/cctc.71076","url":null,"abstract":"<div>\u0000 \u0000 In this study, CO2 was captured in monoethanolamine, forming hydroxyethyl carbamate, which was subsequently converted into 2-oxazolidinone under ambient conditions with the aid of a Zn-NC catalyst derived from MOF. The catalyst was extensively characterized using PXRD, N2 Sorption, NH3 and CO2-TPD, H2-TPR, XPS, EPR, Raman, HRTEM, and FESEM. The catalytic performance was attributed to the presence of frustrated Lewis pairs (FLP) on the surface. The study of masking of active sites with pyridine and KSCN confirmed the FLPs as key active sites. Density Functional Theory studies revealed that the adsorption energy of the hydroxyl group and carboxylate group in the hydroxyethyl carbamic acid indicated the preferential adsorption modes. The charge density difference (CDD) analysis provided valuable evidence of how adsorption geometry influences electron redistribution, offering a supportive insight into likely reaction pathway and product selectivity. Under optimum reaction conditions determined by central composite design (CCD) model, highest yield of 84% was obtained for 2-oxazolidinone using Zn-NC catalyst. This study emphasizes the defective nature of Zn-NC catalyst, resulting in the formation of FLPs contributing to an enhanced catalytic activity. The catalyst was resilient to leaching and was found to be recyclable up to 4 cycles.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering PolyHIPE Supported Pt–NHC Catalyst: Heterogeneous Alternatives to Commercial Pt Catalysts for Sustainable Alkene Hydrosilylation 工程PolyHIPE负载的Pt - nhc催化剂：可持续烯烃氢硅化的商业Pt催化剂的异相替代品

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-17 DOI: 10.1002/cctc.71078

Merve Süslükaya, Erhan Deniz, Yunus Kaya

{"title":"Engineering PolyHIPE Supported Pt–NHC Catalyst: Heterogeneous Alternatives to Commercial Pt Catalysts for Sustainable Alkene Hydrosilylation","authors":"Merve Süslükaya, Erhan Deniz, Yunus Kaya","doi":"10.1002/cctc.71078","DOIUrl":"https://doi.org/10.1002/cctc.71078","url":null,"abstract":"<div>\u0000 \u0000 In this study, heterogeneous PH−RNHC−Pt(dvtms) catalysts consisting of homogeneously distributed covalently built Markó-type Pt−NHC sites on polyHIPE support were synthesized, and comprehensively characterized by the use of various techniques. The applicability of the synthesized PH−RNHC−Pt(dvtms) catalysts was assessed through gram-scale industrially relevant model alkene hydrosilylation reactions under solvent-free and atmospheric conditions with ppm-level Pt loading (3−10 ppm). Heterogeneous PH−RNHC−Pt(dvtms) catalysts benchmarked against commercially established homogeneous Pt catalysts (Karstedt, Speier), and delivered the TON / TOF values within the same range as for model reaction I (hydrosilylation of 1-Octene with 1,1,1,3,5,5,5-Heptamethyltrisiloxane) and model reaction II (hydrosilylation of Allyl glycidyl ether with 1,1,3,3-Tetramethyldisiloxane) which are 6.5 × 104 / 7.7 × 105 h−1 and 1.3 × 105 / 1.5 × 106 h−1, respectively. Catalyst recycle test results showed that, with the decreasing Pt content, no loss but an increase in catalytic activity in terms of TON / TOF values was observed after 10 successive runs, without any distinctive change in morphology and temperature-decomposition behavior. Overall, the heterogeneous PH−RNHC−Pt(dvtms) catalysts presented in this study offers a highly promising, potential alternative to industry-standard homogeneous Pt catalysts for sustainable high-volume production of silicone-based materials.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silver Porphyrins for Efficient CO2-to-CO Conversion in Zero-Gap Electrolyzers—Effects of Dispersion Solvent and Ligand Substituents 银卟啉在零间隙电解槽中用于co2到co的高效转化——分散溶剂和配体取代基的影响

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-17 DOI: 10.1002/cctc.71073

Wiebke Wiesner, Nicolas Birkenstock, Kevinjeorjios Pellumbi, Julia Jökel, Sylvie Chardon-Noblat, Cyrille Costentin, Ulf-Peter Apfel

{"title":"Silver Porphyrins for Efficient CO2-to-CO Conversion in Zero-Gap Electrolyzers—Effects of Dispersion Solvent and Ligand Substituents","authors":"Wiebke Wiesner, Nicolas Birkenstock, Kevinjeorjios Pellumbi, Julia Jökel, Sylvie Chardon-Noblat, Cyrille Costentin, Ulf-Peter Apfel","doi":"10.1002/cctc.71073","DOIUrl":"https://doi.org/10.1002/cctc.71073","url":null,"abstract":"Molecular pre-catalysts—especially silver-based systems—are promising alternatives for generating metallic materials for the electrochemical CO2 reduction (eCO2R). Yet, their implementation in industrially relevant electrolyzer architectures remains challenging. Herein, silver tetraphenylporphyrin (AgTPP) and its fluorine- and methoxy-substituted analogs (AgF20 and AgDMPP) were investigated as such pre-catalysts in zero-gap electrolyzers (ZGEs) at current densities of up to 500 mA/cm2. Instead of ligand-substitution effects, eCO2R activity and efficiency were predominantly affected by the local environment within the catalyst layer (CL) of the gas diffusion electrode (GDE). The parent complex AgTPP was able to achieve the highest Faradaic efficiency for CO (FECO) of 75% at a constant current electrolysis at 300 mA/cm2 with an ultra-low pre-catalyst loading of 0.05 mg/cm2. We found that the dispersion solvent strongly influenced CL morphology, leading to notable differences in CO selectivity, with FECO values ranging from 13% to 75% under identical electrolysis conditions at 300 mA/cm2. Ligand modification negligibly affected CO selectivity with an optimized dispersion solvent but drastically influenced the overall cell voltage, underscoring the crucial role of local catalyst environment for an overall efficient eCO2R performance in ZGEs.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.71073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-Controlled Diene Cyclization Toward Trifluoromethyl Biphenyl Derivatives: Synthetic and Computational Study 三氟甲基联苯衍生物的温控二烯环化：合成和计算研究

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-17 DOI: 10.1002/cctc.71064

Bálint Varga, Khaled T. Jaradat, Martin Polyák, János Kele-Jókuthy, Attila Herczegh, András Kotschy, Zoltán Novák, János Daru

{"title":"Temperature-Controlled Diene Cyclization Toward Trifluoromethyl Biphenyl Derivatives: Synthetic and Computational Study","authors":"Bálint Varga, Khaled T. Jaradat, Martin Polyák, János Kele-Jókuthy, Attila Herczegh, András Kotschy, Zoltán Novák, János Daru","doi":"10.1002/cctc.71064","DOIUrl":"https://doi.org/10.1002/cctc.71064","url":null,"abstract":"A temperature-controlled palladium-catalyzed cyclization of polyfluorinated dienes provides direct access to both functionalized 1,3,5-conjugated trienes and trifluoromethylated biphenyls. These dienes are readily accessible via Heck coupling of fluorinated vinyl iodides prepared through atom transfer radical addition (ATRA) of hydrofluoroolefins (HFOs). At elevated temperatures, the dienes undergo transformation into trifluoromethylated biphenyl derivatives—a pathway not previously described. Detailed mechanistic investigation, including intermediate isolation, 19F NMR monitoring, and computational studies, suggests a sequence involving β-fluoro elimination to a triene intermediate, followed by electrocyclization and aromatization. Experimental data support that the triene intermediate cyclizes through a free triene pathway, though the palladium-mediated triene cyclization remains possible. Control experiments confirm that phosphine ligands play a dual role as both stabilizing ligands and reductants. The reaction can be tuned by modulating temperature and reductant conditions, enabling stepwise access to either diene or biphenyl products. This dual-stage Pd-mediated transformation expands the synthetic utility of fluorinated building blocks and offers new opportunities in designing functionalized aromatic frameworks via in situ generated triene intermediates.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.71064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Acidity Characterization of Pristine and Zinc-Modified H-ZSM-5 Zeolites: Comparison of Adsorption-Based Characterization Methods 原生和锌改性H-ZSM-5沸石的酸度表征：吸附表征方法的比较

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-16 DOI: 10.1002/cctc.71066

Ellen Järvinen, Francesco Sandri, Jorge A. Velasco, Joakim Kattelus, Hua Jiang, Narendra Kumar, Reetta Karinen, Dmitry Yu. Murzin, Riikka L. Puurunen

{"title":"On the Acidity Characterization of Pristine and Zinc-Modified H-ZSM-5 Zeolites: Comparison of Adsorption-Based Characterization Methods","authors":"Ellen Järvinen, Francesco Sandri, Jorge A. Velasco, Joakim Kattelus, Hua Jiang, Narendra Kumar, Reetta Karinen, Dmitry Yu. Murzin, Riikka L. Puurunen","doi":"10.1002/cctc.71066","DOIUrl":"https://doi.org/10.1002/cctc.71066","url":null,"abstract":"Unlike temperature-programmed desorption (TPD) of ammonia (NH3-TPD) and Fourier-transform infrared spectroscopy of adsorbed pyridine (pyridine-FTIR), where ammonia and pyridine adsorb and desorb without reaction, TPD of isopropylamine (IPAm-TPD) relies on a Brønsted-acid-catalyzed decomposition of isopropylamine to propylene and ammonia to selectively probe Brønsted acidity. Prior studies have reported altered IPAm-TPD responses for metals-modified zeolites relative to pristine zeolites, yet hypotheses on the cause have diverged. This work examined the acidity characterization results of pristine and zinc-modified H-ZSM-5 zeolites from IPAm-TPD against those from NH3-TPD, and pyridine-FTIR. For pristine zeolites, the IPAm-TPD data exhibited the expected Brønsted-site-related propylene desorption feature, with propylene amounts proportional to framework aluminum, strongly adsorbed ammonia in NH3-TPD, and Brønsted-associated pyridine in pyridine-FTIR. However, the IPAm-TPD data of the zinc-modified zeolites was more complex, with multiple desorption features. The mass spectrometry data and comparison of the quantitative IPAm-TPD results to those of NH3-TPD and pyridine-FTIR suggested contributions from a Brønsted-site-related propylene release, an additional, likely Lewis-site-related propylene release, and unidentified side products overlapping with typical propylene responses, possibly from dehydrogenation and aromatization reactions. When the Brønsted-site-related propylene response was quantified and compared to quantitative pyridine-FTIR results, the results seemed representative of Brønsted acidity despite the side reactions.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.71066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148974884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient and Selective Photocatalytic Conversion of CH4 to CH3OH Over Au-CeO2 Au-CeO2上CH4高效选择性光催化转化CH3OH的研究

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-16 DOI: 10.1002/cctc.71072

Linlin He, Shuxu Zhu, Yiyang Liu, Junling Tu, Yunfei Xu, Pengye Zhang, Haonan Zhang, Chaoqun Gu, Hongjie Qin, Yang Li, Wenbin Wang, Linghui Kong, Shukui Wu, Qi Hua, Mingbo Wu, Wenting Wu

{"title":"Efficient and Selective Photocatalytic Conversion of CH4 to CH3OH Over Au-CeO2","authors":"Linlin He, Shuxu Zhu, Yiyang Liu, Junling Tu, Yunfei Xu, Pengye Zhang, Haonan Zhang, Chaoqun Gu, Hongjie Qin, Yang Li, Wenbin Wang, Linghui Kong, Shukui Wu, Qi Hua, Mingbo Wu, Wenting Wu","doi":"10.1002/cctc.71072","DOIUrl":"https://doi.org/10.1002/cctc.71072","url":null,"abstract":"<div>\u0000 \u0000 An Au nanoparticle-modified CeO2 catalyst (Au-CeO2) was successfully synthesized via a sodium borohydride reduction method for the selective photo-oxidation of methane to methanol. The optimized catalyst exhibited outstanding performance, achieving a methanol production rate of 854.7 µmol·g−1·h−1 with a selectivity of 86.3%. Comprehensive characterization confirmed the formation of a Schottky junction at the Au-CeO2 interface, a heterojunction structure that is crucial for facilitating efficient charge separation upon photoexcitation. Au nanoparticles enhance visible light absorption through the localized surface plasmon resonance (LSPR) effect and promote photogenerated charge separation, thereby extending the lifetime of photogenerated charge carriers in the CeO2 support. Furthermore, the high specific surface area of CeO2 facilitates enhanced methane adsorption, while in situ DRIFTS and EPR analyses elucidate the formation mechanism of CH3OH. The synergistic interplay among Schottky junction-enhanced charge separation, improved light harvesting, and optimized surface reactivity collectively underpins the observed superior catalytic activity and selectivity. This work presents a promising strategy for the rational design of efficient photocatalysts toward the direct valorization of methane under mild conditions.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148974912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering the Synergetic Effect Over the Ru-Modified PdCu Catalysts for Enhanced CO2 Reduction to Formate ru改性PdCu催化剂的协同效应增强CO2还原为甲酸盐

IF 4.1 3区化学

ChemCatChem Pub Date : 2026-09-16 DOI: 10.1002/cctc.71049

Hui Dai, Anhang Zhang, Xiaobing Deng, Ancheng Wu, Xuefei Wang, Xin Xiao, Yan Liu

{"title":"Engineering the Synergetic Effect Over the Ru-Modified PdCu Catalysts for Enhanced CO2 Reduction to Formate","authors":"Hui Dai, Anhang Zhang, Xiaobing Deng, Ancheng Wu, Xuefei Wang, Xin Xiao, Yan Liu","doi":"10.1002/cctc.71049","DOIUrl":"https://doi.org/10.1002/cctc.71049","url":null,"abstract":"<div>\u0000 \u0000 The modification of the micro-surface and electron status over PdCu bimetallic catalyst is essential for the reduction of CO2 to formate. In this study, the relatively inexpensive Ru species were introduced to optimize the d-p orbital coupling hybridization between the Ru and PdCu surface. By varying the Ru content, the electron status and hydrogen splitting ability of the metallic Pd were modulated. Extensive characterization showed that the introduced Ru species would shift the electron transfer over the Ru-PdCu interface and optimize the adsorption structure of the CO2 hydrogenation intermediates. By combing with the Pd surface with enriched electron and optimized hydrogen active surface, the 0.1 wt% Ru supported on PdCuMgAl-LDH, derived from Layered Double Hydrotalcite (LDH), achieved triple yield of formate (0.61 mmol) compared with that for undoped PdCuMgAl-LDH catalysts (0.19 mmol). This study provides the guidance for construction and surface regulation of PdCu bimetallic catalyst through the d-p orbital coupling effect for an enhanced CO2 reduction.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 18","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148974913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0