Catalysis Science & Technology最新文献_第5页

Multivariate analysis coupled to infrared spectroscopy unravels the diversity of adsorption sites and strengths of a zeolite surface 多变量分析与红外光谱相结合揭示了沸石表面吸附位点和强度的多样性

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-09 DOI: 10.1039/d6cy00101g

Reda Aboulayt , Eleonora Vottero , Alexandre Vimont , Philippe Bazin , Emily Bloch , Sandrine Bourrelly , Sylvie Maury , Céline Chizallet , Arnaud Travert

{"title":"Multivariate analysis coupled to infrared spectroscopy unravels the diversity of adsorption sites and strengths of a zeolite surface","authors":"Reda Aboulayt , Eleonora Vottero , Alexandre Vimont , Philippe Bazin , Emily Bloch , Sandrine Bourrelly , Sylvie Maury , Céline Chizallet , Arnaud Travert","doi":"10.1039/d6cy00101g","DOIUrl":"10.1039/d6cy00101g","url":null,"abstract":"<div><div>Quantifying adsorption thermodynamics on heterogeneous catalysts remains challenging because macroscopic techniques yield averaged parameters, while vibrational spectra often contain strongly overlapping contributions from multiple adsorbed species. Here we introduce an infrared (IR)-chemometric framework that extracts site-specific adsorption thermodynamics directly from experimental IR isotherms and we benchmark it against independent microcalorimetry and density functional theory (DFT) calculations. Difference IR spectra recorded for isobutanol adsorption on H-ZSM-5 (MFI) were analysed by principal component analysis and multivariate curve resolution (MCR-ALS) under soft constraints (monotonic concentration profiles, spectral normalisation), and further refined using a hard–soft strategy in which concentration profiles are constrained by an adsorption model. The analysis reveals three adsorption modes associated with bridging Brønsted OH groups, extra-framework Al–OH species, and silanols, providing representative pure-component spectra and site-resolved adsorption isotherms. The thermodynamic trends and site hierarchy obtained from IR–MCR-ALS are consistent with independent microcalorimetry measurements and density functional theory calculations, validating the approach. More broadly, IR–MCR-ALS offers a transferable route to quantitative, site-resolved adsorption thermodynamics in complex catalysts.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3843-3854"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196115","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}

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Catalyst development for the efficient synthesis of pentanediols via the selective hydrogenation of biomass-based furfural and its derivatives 生物质基糠醛及其衍生物选择性加氢高效合成戊二醇催化剂的研究

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-17 DOI: 10.1039/d6cy00077k

Luyu Wang , Pengcheng Dai , Xin Li , Dandan Liu , Qian Gao , Zhaorui Zhang , Xin Gu , Liangjun Li , Mingbo Wu

{"title":"Catalyst development for the efficient synthesis of pentanediols via the selective hydrogenation of biomass-based furfural and its derivatives","authors":"Luyu Wang , Pengcheng Dai , Xin Li , Dandan Liu , Qian Gao , Zhaorui Zhang , Xin Gu , Liangjun Li , Mingbo Wu","doi":"10.1039/d6cy00077k","DOIUrl":"10.1039/d6cy00077k","url":null,"abstract":"<div><div>The selective hydrogenation and ring-opening of furfural and its derivatives to pentanediols (PDOs) represent a potentially important route for promoting the sustainable production of bio-based fine chemicals. Due to the complex hydrogenation reaction network of furfural, achieving the catalytic hydrogenolysis of the C–O bond in the furan ring to target PDOs with high selectivity is a great challenge. Therefore, the rational design of heterogeneous catalysts is crucial. In this review, the catalyst designs for the hydrogenation of FF and its derivatives to PDOs are catalogued into three major products, 1,2-PDO, 1,5-PDO, and 1,4-PDO. Particular emphasis is placed on catalyst design strategies for the hydrogenation of FF and its derivatives to PDOs, including metal center modulation, support microenvironment engineering (including acidity/alkalinity, oxygen vacancies, and pore structure), and the synergistic effect of additives, to improve the catalytic activity, product selectivity, and catalyst stability. The reaction mechanisms are also discussed to provide insights for enhancing the selectivity and the design of multifunctional catalysts. Finally, future research is expected to focus on the precise design and rational regulation of catalytic systems, aiming to develop non-precious metal catalysts with higher efficiency, enhanced stability, and lower cost.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3720-3742"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196165","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}

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UV-laser-induced oxygen vacancy engineering of In(OH)3 for boosted CO2 photoreduction 紫外激光诱导In(OH)3氧空位工程促进CO2光还原

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-05-12 DOI: 10.1039/d6cy00159a

Zimu Zhang , Qiutong Han , Xiaotian Yang , Peiting Hao , Haoqiang Chi , Tingting Cheng , Yubin Zheng , Wentao Hou , Zhigang Zou , Yong Zhou

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Oxidative degradation of endocrine disruptor bisphenol-A on MnO2 nanosheets under ambient conditions 环境条件下二氧化锰纳米片上内分泌干扰物双酚a的氧化降解

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-16 DOI: 10.1039/d6cy00126b

Subhadeep Biswas , Vishnu Raj R , Sandip Saha , Ramkrishna Sahoo , Anjali Pal

{"title":"Oxidative degradation of endocrine disruptor bisphenol-A on MnO2 nanosheets under ambient conditions","authors":"Subhadeep Biswas , Vishnu Raj R , Sandip Saha , Ramkrishna Sahoo , Anjali Pal","doi":"10.1039/d6cy00126b","DOIUrl":"10.1039/d6cy00126b","url":null,"abstract":"<div><div>Removal of bisphenol A (BPA) from water was studied using manganese dioxide nanoparticles prepared through co-precipitation using MnCl<sub>2</sub> and KMnO<sub>4</sub>. The nanoparticles were observed to consist of nanosheets and are poorly crystalline as seen from the SEM and TEM images, XRD analysis, and SAED pattern. The pH<sub>zpc</sub> of MnO<sub>2</sub> nanoparticles was observed to be 3.9. TGA studies of MnO<sub>2</sub> showed 13.5% weight loss. Specific capacitance was found to be 188 F g<sup>−1</sup> at a current of 1 A g<sup>−1</sup>. The BPA–MnO<sub>2</sub> reaction was carried out under constant stirring under ambient conditions in an open-mouth glass tube. It was observed that about 80% of BPA was removed in 60 min for a MnO<sub>2</sub> dose of 1 g L<sup>−1</sup> and an initial BPA concentration of 50 mg L<sup>−1</sup>. With an increase in the dosage of MnO<sub>2</sub>, the removal efficiency increased, whereas it showed a decrease in the removal efficiency with an increase in the initial concentration of BPA. The rate of reaction was shown to be increasing with an increase in temperature and a decrease in pH. Kinetic studies indicated that it was a second-order reaction. Total organic carbon (TOC) removal was studied, and about 75% of TOC was removed in 60 minutes for the same dose and initial concentration. Metal ions such as Ca<sup>2+</sup> and Fe<sup>3+</sup> decreased the final removal efficiency. A slight leaching of Mn<sup>2+</sup> ions was observed during the course of the reaction, which confirmed the oxidative degradation of BPA. The reaction was carried out in a nitrogen environment. It was observed that oxygen had a minor role in the BPA degradation. Transformation products were identified by mass spectrometric studies.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3768-3783"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196168","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}

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Engineering spatial and electrostatic confinement in zeolites for enhanced low-temperature NO oxidation 沸石中强化低温NO氧化的工程空间和静电约束

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-28 DOI: 10.1039/d6cy00268d

Guang-Wei Ma , Qi Chen , Sai Zhang , Yuan-Hang Qin , Zhen Chen , Li Yang , Cun-Wen Wang

{"title":"Engineering spatial and electrostatic confinement in zeolites for enhanced low-temperature NO oxidation","authors":"Guang-Wei Ma , Qi Chen , Sai Zhang , Yuan-Hang Qin , Zhen Chen , Li Yang , Cun-Wen Wang","doi":"10.1039/d6cy00268d","DOIUrl":"10.1039/d6cy00268d","url":null,"abstract":"<div><div>Low-temperature catalytic oxidation of nitric oxide (NO) has drawn significant attention, underscoring the need for catalysts with enhanced activity in the low-temperature regime. Zeolites possess intrinsic advantages for NO oxidation, as their confined microporous frameworks can stabilize the transition state (TS) through enthalpic interactions while mitigating entropy loss, thereby enabling efficient catalysis at reduced temperatures. To achieve stronger confinement of the NO oxidation TS and consequently improve catalytic performance, a three-step zeolite optimization strategy was developed to simultaneously regulate spatial and electrostatic environments within the framework. First, a zeolite with appropriate void spaces was selected; second, its Si/Al ratio (SAR) was adjusted to fine-tune the framework properties; and third, ion exchange was conducted to further modulate spatial and electrostatic effects. The results indicate that both pore size and extra-framework cations play critical roles in governing the catalytic activity of zeolites for NO oxidation. Among the synthesized materials, potassium-exchanged SSZ-13 with an SAR of 8 (K-SSZ-13-8) exhibited the highest low-temperature NO oxidation activity, achieving 87.2% of NO conversion at 25 °C, along with relatively good tolerance to sulfur dioxide. This study provides a rational design strategy for developing high-performance zeolite catalysts for low-temperature NO oxidation.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3908-3920"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196193","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}

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Electrochemical reconstruction leading to a borate-linked [Co(Fe)]8B2O16H2 crystalline phase for the efficient and stable OER 电化学重建导致硼酸连接的[Co(Fe)]8B2O16H2晶相高效稳定的OER

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-30 DOI: 10.1039/d6cy00100a

Xing-Hui Zhang , Yi-Fan Hu , Zhi-Pan Liu

{"title":"Electrochemical reconstruction leading to a borate-linked [Co(Fe)]8B2O16H2 crystalline phase for the efficient and stable OER","authors":"Xing-Hui Zhang , Yi-Fan Hu , Zhi-Pan Liu","doi":"10.1039/d6cy00100a","DOIUrl":"10.1039/d6cy00100a","url":null,"abstract":"<div><div>Recent developments relating to oxygen evolution reaction (OER) catalysts have shifted to multiple-element or even high-entropy materials for achieving high activity and high stability, but clarification of the synergistic mechanism between elements has been challenging. Here, by utilizing state-of-the-art machine-learning-based global structure exploration and electrochemical experiments, we show that in iron, boron and cobalt ternary oxide catalysts, Co<sub><em>x</em></sub>Fe<sub><em>y</em></sub>B<sub><em>z</em></sub> with <em>x</em> : <em>y</em> : <em>z</em> = 4 : 1 : 1, the initially amorphous material reconstructs into a crystalline phase with the formula [Co(Fe)]<sub>8</sub>B<sub>2</sub>O<sub>16</sub>H<sub>2</sub>, featuring borate (BO<sub>3</sub>)-linked CoO<sub>2</sub> layers exposing Fe cation sites. This borate-linked structure delivers rational performance metrics and, more importantly, exhibits exceptional and multifaceted stability: it retains 97% of its initial stability after 200 h of chronoamperometric testing, shows almost no voltage change after multi-current step testing, and maintains a stable potential throughout 200 h of intermittent testing (12 h start–shutdown cycles at 10 mA cm<sup>−2</sup>) in 1 M KOH electrolyte. While boron acts as the structural skeleton dopant, iron not only stabilizes the Co(Fe)O<sub>2</sub> layer surfaces but also enhances the OER activity by markedly stabilizing the key terminal O* and OOH* intermediates by ∼0.50 eV, giving rise to a characteristic Raman peak at 940 cm<sup>−1</sup>.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3929-3936"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196184","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}

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Catalytic studies of Pt supported on Co/CeO2 nanorods for H2 production in dry reforming of methane Co/CeO2纳米棒负载Pt催化甲烷干重整制氢的研究

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-24 DOI: 10.1039/d5cy01416f

J. Reyna-Alvarado , Jorge Trimmer-Duarte , Oscar Recalde-Benitez , Leopoldo Molina-Luna , Albina Gutiérrez-Martínez , Gilberto Mondragón-Galicia , Manuel Ramos , Raúl Pérez-Hernández

{"title":"Catalytic studies of Pt supported on Co/CeO2 nanorods for H2 production in dry reforming of methane","authors":"J. Reyna-Alvarado , Jorge Trimmer-Duarte , Oscar Recalde-Benitez , Leopoldo Molina-Luna , Albina Gutiérrez-Martínez , Gilberto Mondragón-Galicia , Manuel Ramos , Raúl Pérez-Hernández","doi":"10.1039/d5cy01416f","DOIUrl":"10.1039/d5cy01416f","url":null,"abstract":"<div><div>An integrated experimental–theoretical study was performed on 15Co/CeO<sub>2</sub> nanorod catalysts with varying Pt loadings (0.1–0.5 wt%) for dry reforming of methane (DRM) to syngas. CeO<sub>2</sub> nanorods were synthesized hydrothermally and sequentially impregnated with Co and Pt. The catalysts were characterized by XRD, TPR, TPO, CO<sub>2</sub>- and NH<sub>3</sub>-TPD, and TEM/STEM-EDX, while DFT calculations were conducted to evaluate the proposed reaction mechanism and transition states. TEM revealed isolated Pt and Co nanoparticles anchored to CeO<sub>2</sub> surfaces. The monometallic Co/CeO<sub>2</sub>-NR catalyst exhibited pronounced deactivation and significant sintering, whereas Pt-promoted catalysts showed enhanced stability despite increased graphitic carbon deposition. Post-reaction SEM and TEM indicated partial detachment of the active phase associated with carbon nanotube growth which contributes to catalyst deactivation. Energy transition state profiles by Halgren–Lipscomb showed no significant decrease in activation energy with increasing Pt content; however, catalytic tests demonstrated higher reactant conversions, suggesting that Pt enhances DRM performance through mechanisms beyond simple energy barrier reduction.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3830-3842"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196114","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}

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Preparation of CuCo/NH2-MIL-101(Fe) nanocomposite for photocatalytic synthesis of 2,3-dihydroquinazolin-4(1H)-ones and 1-amidoalkyl-2-naphthols CuCo/NH2-MIL-101（Fe）纳米复合材料光催化合成2,3-二氢喹唑啉-4(1H)-酮和1-氨基烷基-2-萘酚的制备

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-05-14 DOI: 10.1039/d5cy01583a

Neda Cheraghi , Mohammad Jafarzadeh

{"title":"Preparation of CuCo/NH2-MIL-101(Fe) nanocomposite for photocatalytic synthesis of 2,3-dihydroquinazolin-4(1H)-ones and 1-amidoalkyl-2-naphthols","authors":"Neda Cheraghi , Mohammad Jafarzadeh","doi":"10.1039/d5cy01583a","DOIUrl":"10.1039/d5cy01583a","url":null,"abstract":"<div><div>Bimetallic CuCo nanoparticles were grown on iron-based NH<sub>2</sub>-MIL-101 metal–organic frameworks, and their photoactivity was evaluated for photocatalytic organic synthesis. The CuCo/NH<sub>2</sub>-MIL-101 composite exhibited a narrower bandgap (<em>E</em><sub>g</sub> = 1.3 eV), slower photogenerated charge recombination, enhanced charge separation, and faster charge transport compared to pristine NH<sub>2</sub>-MIL-101 (<em>E</em><sub>g</sub> = 1.48 eV). As a photocatalyst, CuCo/NH<sub>2</sub>-MIL-101 enabled light-driven synthesis of 2,3-dihydroquinazolin-4(1<em>H</em>)-one derivatives with 83–93% yields in 2–2.5 h under visible light irradiation (200 W LED lamp). It also efficiently catalyzed the synthesis of 1-amidoalkyl-2-naphthols, achieving 78–95% yields in 70–105 min (200 W LED lamp). The synergistic effect between Cu and Co, combined with the intrinsic photoactivity of NH<sub>2</sub>-MIL-101, significantly enhanced the composite's photocatalytic performance. Moreover, the photocatalyst demonstrated excellent functional and structural stability over five recycling runs.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3937-3953"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196173","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}

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Photothermal flash light doping of strontium titanate photocatalyst nanoparticles 光热闪光掺杂钛酸锶光催化剂纳米颗粒

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-05-07 DOI: 10.1039/d5cy01501d

Melanie Johanning , Wanderson O. Silva , Anselm Dreher , Paul Kant , Mara Blöchlinger , Arthur E. Bouchez , Coral Felipe Gracia , Hannah Johnson , Roland Dittmeyer , Mathieu Soutrenon , Kevin Sivula

{"title":"Photothermal flash light doping of strontium titanate photocatalyst nanoparticles","authors":"Melanie Johanning , Wanderson O. Silva , Anselm Dreher , Paul Kant , Mara Blöchlinger , Arthur E. Bouchez , Coral Felipe Gracia , Hannah Johnson , Roland Dittmeyer , Mathieu Soutrenon , Kevin Sivula","doi":"10.1039/d5cy01501d","DOIUrl":"10.1039/d5cy01501d","url":null,"abstract":"<div><div>Rhodium and lanthanum co-doped strontium titanate (Rh,La:SrTiO<sub>3</sub>) is a promising material for green hydrogen (H<sub>2</sub>) production <em>via</em> heterogeneous photocatalytic (PC) water splitting. State-of-the-art Rh,La:SrTiO<sub>3</sub> nanoparticle photocatalysts mitigate charge recombination using an undoped core/doped shell structure. However, the typically-employed synthesis methods use high temperatures >1000 °C in a slow dopant diffusion process, which induces inhomogeneities, causes nanoparticle sintering, and limits material performance. In this work, we demonstrate a rapid flash light annealing (FLA) technique that affords suitable nanoparticle doping in only 7.5 seconds. FLA samples show a PC performance three times greater than conventional thermal doping, which we attribute to mitigated particle sintering and dopants incorporated closer to the surface. Moreover, the H<sub>2</sub> evolution rate under full spectrum simulated solar illumination increased by 50% compared to the undoped precursor nanoparticles. Finally, varying the flash parameters shows the tunability of the FLA process. The developed method paves the way for extending rapid doping by FLA to other powdered materials without the need for ion implantation.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3855-3866"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196116","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}

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Synergistic photocatalytic production of H2O2 and imines via oxygen-enriched acetonitrile medium and benzylamine oxidation 富氧乙腈介质和苄胺氧化协同光催化生产H2O2和亚胺

IF 4.2 3区化学

Catalysis Science & Technology Pub Date : 2026-06-08 Epub Date: 2026-04-23 DOI: 10.1039/d6cy00178e

Xin Xu , Yuming Dong , Yingxin Guo , Xinxin Jiang , Lizi Liu , Tingyu Yang , Xinyu Sun , Pengken Li , Hui Zhao , Yongfa Zhu , Junshan Li

{"title":"Synergistic photocatalytic production of H2O2 and imines via oxygen-enriched acetonitrile medium and benzylamine oxidation","authors":"Xin Xu , Yuming Dong , Yingxin Guo , Xinxin Jiang , Lizi Liu , Tingyu Yang , Xinyu Sun , Pengken Li , Hui Zhao , Yongfa Zhu , Junshan Li","doi":"10.1039/d6cy00178e","DOIUrl":"10.1039/d6cy00178e","url":null,"abstract":"<div><div>Photocatalytic technology has emerged as a sustainable and efficient strategy for chemical synthesis, yet its application in H<sub>2</sub>O<sub>2</sub> production is limited by low dissolved oxygen availability and inefficient charge carrier utilization. To overcome these limitations, we developed an innovative photocatalytic system that uses acetonitrile as the solvent. Due to its markedly higher oxygen solubility compared to water, this system significantly improves oxygen mass transfer and overall reaction kinetics. Furthermore, we introduced benzylamine oxidation as an alternative to the conventional water oxidation reaction. Benefiting from its favorable oxidation potential, the oxidation of benzylamine not only requires lower energy input, but also couples synergistically with H<sub>2</sub>O<sub>2</sub> generation, forming a bifunctional catalytic system that significantly enhances the efficiency of H<sub>2</sub>O<sub>2</sub> synthesis. The system achieves a high H<sub>2</sub>O<sub>2</sub> production rate of 12.03 mmol g<sup>−1</sup> h<sup>−1</sup> and a concentration of 28.9 mmol L<sup>−1</sup>, significantly outperforming conventional aqueous-phase systems. Subsequent distillation and extraction processes concentrated the aqueous H<sub>2</sub>O<sub>2</sub> solution to 413.43 mM (>1 wt%), approaching the concentration of medical-grade H<sub>2</sub>O<sub>2</sub>. Mechanistic investigations confirm that the reaction follows a two-electron oxygen reduction pathway. This work not only presents a novel and sustainable route for H<sub>2</sub>O<sub>2</sub> production, but also demonstrates potential for photocatalytic synthesis of other high-value chemicals.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"16 11","pages":"Pages 3889-3897"},"PeriodicalIF":4.2,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148196191","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