Catalysis Science & Technology最新文献

{"title":"Stable copper-based metal–organic framework-supported Pt–Bi nanoparticles for selective oxidation of glycerol into dihydroxyacetone†","authors":"Liang Lv, Tao Chen, Chaohui Guan, Jing Yu, Yijing Pian, Zihan Ma, Junfeng Du, Shuai Zhang, Hang Wei and Haibin Chu","doi":"10.1039/D5CY00405E","DOIUrl":"https://doi.org/10.1039/D5CY00405E","url":null,"abstract":"<p >The selective oxidation of glycerol into high-value-added products (<em>e.g.</em>, dihydroxyacetone, DHA) has attracted much attention. However, it is still constrained by low DHA selectivity (≤60%) under high glycerol conversion. Herein, we report a Pt–Bi nanoparticle catalyst supported on Cu-based metal–organic frameworks (Cu-MOFs, HKUST-1). Cu-MOF as a support promotes electron transfer from the support to Pt–Bi and inhibits the decomposition of DHA. <em>In situ</em> FTIR, O<small>₂</small>-TPD, kinetic experiments, EPR experiments, and fluorescence spectroscopy techniques show that Cu-MOF with rich microporous structure can promote oxygen adsorption and water dissociation and enhance the strong adsorption capacity of glycerol and the ability to generate abundant OH*, which is conducive to accelerating the conversion of glycerol to DHA. Consequently, Pt–Bi/Cu-MOF maintains considerable DHA selectivity (68.8%) even at a high glycerol conversion (94.2%), gaining a high yield of DHA (62.9%). Importantly, the stability of the Cu-MOF support as well as the intense metal–support interaction ensures the stability of the catalyst, which keeps superior glycerol oxidation performance after 10 reaction cycles.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 14","pages":" 4279-4290"},"PeriodicalIF":4.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624120","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}

{"title":"Stability enhancement of an integrated ZnO/Zn3As2/SrTiO3 photocatalyst for photocatalytic overall water splitting†","authors":"Zhiquan Yin, Wenlong Zhen, Xiaofeng Ning, Zhengzhi Han and Gongxuan Lu","doi":"10.1039/D5CY00427F","DOIUrl":"https://doi.org/10.1039/D5CY00427F","url":null,"abstract":"<p >Visible and infrared radiation account for approximately 95% of the solar energy input to the Earth. However, only a few long-wavelength responding catalysts have been reported thus far. In order to achieve the goal of solar hydrogen scale-up generation, it is essential to develop a novel catalyst that can work in the main visible region (400–700 nm) or beyond. Zn<small>₃</small>As<small>₂</small>, a potential candidate that is sensitive to this light region, suffers from serious photo-corrosion and low stability in photocatalytic overall water-splitting (OWS) reactions. In this study, a stable ZnO/Zn<small>₃</small>As<small>₂</small>/SrTiO<small>₃</small> heterojunction photocatalyst was developed, which exhibited remarkably enhanced stability and operated for over 5 cycles in 15 hours without significant activity decay. In contrast, the naked Zn<small>₃</small>As<small>₂</small> only presented a few minutes of activity. The pronounced stability and activity enhancement were due to the faster charge separation facilitated by the heterojunction of SrTiO<small>₃</small> and ZnO/Zn<small>₃</small>As<small>₂</small> and the protection of Zn<small>₃</small>As<small>₂</small> from photo-corrosion from oxygen and water oxidation by the ZnO layer. This work provides valuable insights into a new strategy for developing stable OWS photocatalysts for solar hydrogen production and energy storage.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 14","pages":" 4259-4265"},"PeriodicalIF":4.4,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624143","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}

{"title":"Bioelectrocatalysis for solar fuels and sustainable energy","authors":"Rodrigo M. Iost, Senentxu Lanceros-Méndez and Frank N. Crespilho","doi":"10.1039/D5CY00177C","DOIUrl":"https://doi.org/10.1039/D5CY00177C","url":null,"abstract":"<p >Bioelectrocatalysis has emerged as an important area in the transition to sustainable energy, offering a green and efficient way for producing solar fuels, bioelectricity, and value-added chemicals. This review presents a comprehensive roadmap for bioelectrocatalytic systems, focusing on key enzymes, microorganisms, and bioelectrochemical processes that drive these technologies. Enzymes such as hydrogenases and nitrogenases play essential roles in hydrogen production and renewable nitrogen fixation, while photosynthetic microorganisms like cyanobacteria are suitable for biophotovoltaic applications. Recent advances in electrode materials, genetic engineering of biocatalysts, and nanomaterial integration have significantly improved electron transfer efficiency and biocatalyst stability. The use of bioelectrochemical systems, including mediated and direct electron transfer mechanisms, offers enhanced performance for applications ranging from microbial fuel cells to CO<small>₂</small> reduction and artificial photosynthesis. Despite the progress, challenges remain in optimizing biocatalyst stability, improving large-scale industrial applicability, and integrating bioelectrocatalysis with solar energy systems. This review highlights these advancements and addresses future directions, emphasizing the role of bioelectrocatalysis in developing a circular bio-economy and sustainable energy infrastructure.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 13","pages":" 3793-3805"},"PeriodicalIF":4.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514439","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}

{"title":"Recent advancements in the fabrication and properties of tailored COFs for catalytic theranostic processes, energy storage and environmental sustainability","authors":"K. Preethi, C. Senthamil, J. Hemalatha, J. J. Umashankar and I. Prabha","doi":"10.1039/D5CY00192G","DOIUrl":"https://doi.org/10.1039/D5CY00192G","url":null,"abstract":"<p >Covalent organic frameworks (COFs) are innovative porous materials that have attracted significant attention because of their remarkable structural stability, adaptability, and other properties and are composed of fundamental organic building blocks interconnected by covalent bonds. In contrast to the metal bonds present in other materials, the majority of the bonds in COFs are C–C, C–N, C–O and N–N bonds, and hence, they are safer. The key characteristic properties of COFs that make them ideal materials are high porosity, large surface area, chemical stability, tunable pore size and shape, structural diversity and functionalization, among others. The functional groups of COFs are derived from the organic monomers employed in their synthesis, which influence their properties and applications. Owing to their numerous advantages, COFs show efficiency for various applications in the modern world, including photocatalysis, sensing and CO<small>₂</small> reduction for to detect and eliminate harmful pollutants, energy storage applications to address the pressing need for energy conservation on a global scale without posing threats to the environment. This review explains different factors such as functional groups, active sites, dangling bonds, dimensions, porosity and synthesis methods (such as solvothermal, microwave, ionothermal, and light-induced processes), which influence the material's specificity for targeted applications. In addition, this review provides some significant novel concepts such as hemodialysis (HD), hemoperfusion (HP), extracorporeal membrane oxygenation (ECMO) and enzyme mimetic properties for the first time. Hence, it supports the groundwork for utilizing the multifunctional potential of COFs in future investigations.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 14","pages":" 4085-4120"},"PeriodicalIF":4.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624103","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}

{"title":"Advancements in transition metal iron-based catalysts: enhancing catalytic activity through electron transfer","authors":"Lu Huang, Weigang Zhu and Yunxin Wu","doi":"10.1039/D5CY00096C","DOIUrl":"https://doi.org/10.1039/D5CY00096C","url":null,"abstract":"<p >In this perspective, we aim to explore the latest advancements in a range of design improvements in iron-based catalysts, with a particular focus on electron transfer during catalytic processes. Up to now, various design improvements have been employed to enhance the catalytic activity of heterogeneous iron-based catalysts, including adjustment of microstructure, introduction of support materials, construction of core–shell structures, and incorporation of new components. The effectiveness of these adjustments is contingent upon enhancing the interfacial electron transfer capabilities of heterogeneous iron-based catalysts. Accelerating electron transfer is a fundamental measure to enhance the catalytic ability of the catalyst. Particularly, the activation of pollutants and oxidants during the electron transfer process will lead to different activation mechanisms, combinations, and transformations of activation pathways. Furthermore, considering the practical applications of iron-based composite catalysts, we have also provided future research directions, which address some challenging issues and possible solutions. These directions are crucial for guiding future efforts in catalyst development and optimization.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 13","pages":" 3784-3792"},"PeriodicalIF":4.4,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514478","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}

{"title":"NH3-induced activation of hydrophilic Fe–N–C nanocages for enhanced oxygen reduction reaction†","authors":"Bin Wu, Haibing Meng, Dulce M. Morales, Bo Liu, Deniz Wong, Christian Schulz, Giacomo Zuliani, Maddalena Zoli, Omeshwari Y. Bisen, Samuel Hall, Annika Bande, Zhenbo Wang, Marcel Risch and Tristan Petit","doi":"10.1039/D5CY00124B","DOIUrl":"https://doi.org/10.1039/D5CY00124B","url":null,"abstract":"<p >Non-noble metal electrocatalysts for the oxygen reduction reaction (ORR) are urgently needed in metal–air batteries, seawater batteries and fuel cells. Fe–N–C materials are among the most active catalysts for the ORR. Fe–N–C synthesis usually requires post-heat treatment after pyrolysis which is time-consuming and inevitably triggers inactive aggregate Fe species due to difficulties in controllable atom-level modulation. Here, highly active Fe–N–C catalysts were prepared by a simple process involving an ammonia etching treatment by using ZIF-8 as a hard template and a mixture of FeSO<small>₄</small> and 2-methylimidazole as the Fe, N and C precursors. The direct ammonia treatment modulates N and Fe active species and removes the unstable carbon framework to form pyrolyzed Fe–N–C nanocages with a well-dispersed pore structure. The obtained Fe–N–C exhibits a potential of 0.89 V <em>vs.</em> RHE at a kinetic current density of −1 mA cm<small>⁻²</small> (<em>E</em><small>₋₁</small>) for the ORR, similar to commercial Pt/C, but outperforming it in terms of stability and methanol tolerance. <em>In situ</em> electrochemical Raman and density functional theory provide insights into the origin of the activity of Fe–N–C materials and the underlying ORR electrocatalytic mechanisms at the molecular level.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 14","pages":" 4266-4278"},"PeriodicalIF":4.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/cy/d5cy00124b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144624119","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}

{"title":"Influence of the supported ionic-liquid layer thickness on Z-selectivity in 1-alkyne hydrosilylation under continuous flow†","authors":"André Böth, Florian Kaltwasser, Christian Priedigkeit, Boshra Atwi, Wolfgang Frey, Michael R. Buchmeiser and Ulrich Tallarek","doi":"10.1039/D5CY00436E","DOIUrl":"https://doi.org/10.1039/D5CY00436E","url":null,"abstract":"<p >1-Butyl-3-methylimidazolium tetrafluoroborate containing different rhodium(<small>I</small>) N-heterocyclic carbene (NHC) complexes was immobilized as a supported ionic-liquid phase (SILP) inside the mesopores of a silica monolith to study the impact of SILP thickness (<em>d</em><small>_SILP</small>) from the thin-SILP-limit (<em>d</em><small>_SILP</small> ≈ 1 nm) to complete mesopore filling (<em>d</em><small>_SILP</small> ≈ 15 nm) on <em>Z</em>/<em>E</em>-selectivity in the rhodium-catalyzed hydrosilylation of phenylacetylene with dimethylphenylsilane. A coupled analytical platform allowed monitoring of both yield and selectivity of the produced isomer pattern online in continuous-flow experiments of 600 minutes using methyl <em>tert</em>-butyl ether as mobile phase. The approach provided new insights into the mechanistic aspects of the reaction under liquid confinement conditions created by the varied SILP thickness. With decreasing <em>d</em><small>_SILP</small>, the selectivity of a Rh-catalyst based on a chelating NHC is shifted towards the β(<em>Z</em>)-isomer, climaxing in a boost of the <em>Z</em>/<em>E</em>-ratio for <em>d</em><small>_SILP</small> = 1 nm by a factor of &gt;30, while the selectivity is mostly unaffected for catalysts based on nonchelating NHCs. The spatial dimension of 1 nm reflects the rigid part of the SILP characterized by a quasi-frozen morphology of the ionic liquid. It shapes a local, spatially as well as molecularly confined catalytic environment, which, together with a tailored catalyst, facilitates the predominant formation of the β(<em>Z</em>)-isomer under kinetic control. Contrariwise, the random, mobile part of the adjoining bulk SILP, emerging with increasing <em>d</em><small>_SILP</small>, generally favors the formation of the β(<em>E</em>)-isomer under thermodynamic control.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 13","pages":" 4012-4023"},"PeriodicalIF":4.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/cy/d5cy00436e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514489","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}

{"title":"Natural kaolin-derived ruthenium-supported nanoporous geopolymer: a sustainable catalyst for CO2 methanation†","authors":"Mukesh Kumar and Sudhanshu Sharma","doi":"10.1039/D5CY00021A","DOIUrl":"https://doi.org/10.1039/D5CY00021A","url":null,"abstract":"<p >To address the serious concern of excessive CO<small>₂</small> emissions, the conversion of environmental CO<small>₂</small> into methane <em>via</em> a CO<small>₂</small> methanation reaction is promising. Methane can be used not only as a fuel but also as a hydrogen carrier. In this study, a geopolymer synthesized using natural kaolin (GNK) is explored as a support. This geopolymer support was used to disperse ruthenium (Ru) nanoparticles through a single-step hydrazine reduction method. The catalyst was characterized using various surface and bulk techniques. Furthermore, the catalytic performance of the ruthenium-supported geopolymer (Ru/GNK) for the CO<small>₂</small> methanation process was explored with different Ru loadings (%) and at different flow rates. Catalyst stability was also investigated for 20 h by a time-on-stream isothermal experiment. The spent catalyst was characterized by O<small>₂</small>-temperature programmed oxidation (O<small>₂</small>-TPO) and X-ray photoelectron spectroscopy (XPS). Overall, the catalyst proved to be cost-effective and free from pretreatment requirements, in addition to exhibiting superior activity, high selectivity, and good stability.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 15","pages":" 4471-4481"},"PeriodicalIF":4.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/cy/d5cy00021a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714605","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}

{"title":"Silver enhanced oxidative coupling of methane over the Mn–Na2WO4/SiO2 catalyst†","authors":"Yilin Zhao, Fangwei Liu, Jingbo Hu, Yang Yang, Jianzhou Wu, Shihui Zou and Jie Fan","doi":"10.1039/D5CY00314H","DOIUrl":"https://doi.org/10.1039/D5CY00314H","url":null,"abstract":"<p >The Mn–Na<small>₂</small>WO<small>₄</small>/SiO<small>₂</small> catalyst for oxidative coupling of methane (OCM) is highly appealing and promising but its high light-off temperature (&gt;800 °C) hinders its industrial application. Engineering catalysts for efficient catalytic performance is attractive yet challenging. In this study, we demonstrate that the incorporation of small amounts of silver into the Mn–Na<small>₂</small>WO<small>₄</small>/SiO<small>₂</small> catalyst significantly improves its performance, achieving a C<small>₂</small> yield of up to 20% at 750 °C. Characterization results indicate that silver facilitates O<small>₂</small> activation and promotes C–H bond activation, thereby further enhancing CH<small>₄</small> conversion. The findings offer valuable insights into advancing the design concept of high-performance OCM catalysts.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 13","pages":" 3955-3960"},"PeriodicalIF":4.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514473","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}

{"title":"Electrocatalytic oxidation of 5-hydroxymethylfurfural by MnO2 with tunable surface oxidation states†","authors":"Yongle Zhang, Yingyi Tu, Yunying Huo, Guang Pan, Qiao Zhang, Zhiting Liu, Guangxing Yang and Feng Peng","doi":"10.1039/D5CY00341E","DOIUrl":"https://doi.org/10.1039/D5CY00341E","url":null,"abstract":"<p >The electrochemical catalytic oxidation of 5-hydroxymethylfurfural (HMF) to generate high-value products like 2,5-furandicarboxylic acid (FDCA) has become a prominent research interest. In this work, an economical and efficient transition metal ε-MnO<small>₂</small> catalyst was used to electrocatalyze the oxidation of HMF in acidic environments. The results revealed a highly efficient HMF conversion rate of 92.95% and a FDCA yield of 23.03% under the specific conditions of 60 °C, 0.5 M H<small>₂</small>SO<small>₄</small> and 1.6 V (<em>vs.</em> RHE). Furthermore, the study outlined the oxidation pathway for HMF, which progresses through the following sequence: HMF → DFF → FFCA → FDCA. The apparent activation energies associated with each oxidation stage were found to be 25.52, 22.12 and 16.21 kJ mol<small>⁻¹</small>, respectively. Moreover, the findings indicated a favorable relationship between the electrocatalytic oxidation activity of HMF and the average surface oxidation state of ε-MnO<small>₂</small>.</p>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 13","pages":" 3946-3954"},"PeriodicalIF":4.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514475","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}