Journal of CatalysisPub Date : 2026-03-01Epub Date: 2026-01-14DOI: 10.1016/j.jcat.2026.116696
Han Wang , Yaopeng Xiao , Hanbo Yu , Hong Qin , Ziwei Wang , Guangming Zeng , Piao Xu
{"title":"In-suit growth of MOFs on COFs: Construction of an effective bifunctional hybrid photocatalyst with accelerated electron transfer","authors":"Han Wang , Yaopeng Xiao , Hanbo Yu , Hong Qin , Ziwei Wang , Guangming Zeng , Piao Xu","doi":"10.1016/j.jcat.2026.116696","DOIUrl":"10.1016/j.jcat.2026.116696","url":null,"abstract":"<div><div>Exploring heterojunction photocatalysts with multi-functionalities is of great importance for clean energy production and environmental remediation. Herein, a new type of step (S)-scheme heterojunction photocatalyst based on metal–organic frameworks (MOFs, NH<sub>2</sub>-UIO-66) and covalent organic frameworks (COFs, TpMa) was developed by in-suit synthesis. Experimental data along with the density functional theory calculation confirmed the formation of internal electric field (IEF) directing from TpMa to NH<sub>2</sub>-UIO-66 upon hybridization. The S-scheme charge transfer path enables the enhancement of surface charge transfer efficiency as well as the prolongation of injected electron lifetime, thereby constraining the recombination rate of charge carriers. As a result, the optimized hybrid shows a robust H<sub>2</sub>O<sub>2</sub> evolution of 23.04 mM h<sup>−1</sup> g<sup>−1</sup> with an apparent quantum efficiency of 4.15 % at 420 nm, and 83.4 % degradation of tetracycline in a 60 min reaction time, which far exceeded those of pristine NH<sub>2</sub>-UIO-66. This study opens up a new avenue for the construction of MOF-COF heterojunctions with promising applications.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116696"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145995797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-03-01Epub Date: 2026-01-05DOI: 10.1016/j.jcat.2026.116670
Qingwei Meng , Hui Luo , Fucheng Chen , Lungang Chen , Jinliang Song , Xiaorui Du , Yiyuan Zhou , Anqi Wang , Xiaoping Wu , Tiejun Wang
{"title":"Synergistic catalysis of oxygen vacancy-Cu0 dual-active-site derived from Cu-Zn mineral salt for boosting ethanol dehydrogenation into acetaldehyde","authors":"Qingwei Meng , Hui Luo , Fucheng Chen , Lungang Chen , Jinliang Song , Xiaorui Du , Yiyuan Zhou , Anqi Wang , Xiaoping Wu , Tiejun Wang","doi":"10.1016/j.jcat.2026.116670","DOIUrl":"10.1016/j.jcat.2026.116670","url":null,"abstract":"<div><div>The non-oxidative dehydrogenation of ethanol (EDH) to acetaldehyde represents a promising route for biomass resource utilization. Although Cu/ZnO catalysts are widely employed industrially, their application in EDH remains underexplored. This study investigates the impact of precursor composition—using aurichalcite, zinc malachite, and their mixtures—on the structure and EDH performance of derived Cu/ZnO catalysts. The precursor composition significantly modulates the oxygen vacancy concentration in the catalysts, thereby tuning electronic metal-support (Cu-ZnO) interactions and the relative abundances of Cu<sup>0</sup> and defective Zn<sup>δ+</sup> species. The aurichalcite-derived catalyst exhibits the smallest Cu particle size, highest oxygen vacancy and Cu<sup>0</sup> content, facilitating the formation of abundant oxygen vacancy-Cu<sup>0</sup> dual-active-sites at the Cu-ZnO interface. In situ DRIFTS characterization demonstrate that oxygen vacancies play a critical role in the adsorption of ethanol, and the oxygen vacancy-Cu<sup>0</sup> dual-active sites facilitate the cleavage of the α-C–H bond, thereby enhancing the rate of ethanol dehydrogenation. Mechanism studies reveal that the oxygen vacancy promotes adsorption via the ethanol C-O or O–H bond, while adjacent metallic Cu⁰&Cu<sup>+</sup> activates and cleaves the C–H and O–H bonds. This oxygen vacancy-metal dual-active-sites synergistically enhances the intrinsic activity for ethanol dehydrogenation. Furthermore, catalyst with lower acidity and basicity were found to favor acetaldehyde selectivity. The catalyst derived from the mixed-phase precursor demonstrated optimal performance, achieving 63 % ethanol conversion and 90.2 % acetaldehyde selectivity at 270 °C under a WHSV of 1 h<sup>−1</sup>, with a catalyst lifetime exceeding 230 h. This work provides valuable insights for designing efficient Cu/ZnO catalysts for selective acetaldehyde production via ethanol dehydrogenation.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116670"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145903489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-03-01Epub Date: 2026-01-05DOI: 10.1016/j.jcat.2026.116671
Shaoyuan Sun , Dezheng Li , Huimin Liu , Chao Wang , Manqi Zhao , Heting Hou , Yonghua Zhao , Qijian Zhang , Dehua He , Yiming Lei
{"title":"Pivotal strategies towards stable Ni-based catalysts for dry reforming of methane: resisting carbon accumulation","authors":"Shaoyuan Sun , Dezheng Li , Huimin Liu , Chao Wang , Manqi Zhao , Heting Hou , Yonghua Zhao , Qijian Zhang , Dehua He , Yiming Lei","doi":"10.1016/j.jcat.2026.116671","DOIUrl":"10.1016/j.jcat.2026.116671","url":null,"abstract":"<div><div>Catalytic dry reforming of methane (DRM) can convert greenhouse gases (CO<sub>2</sub> and CH<sub>4</sub>) into syngas (CO + H<sub>2</sub>) so as to be expected to realize carbon neutrality and green energy production. Ni-based catalysts with low cost and high efficiency are promising for DRM field. However, the rapid cracking of CH<sub>4</sub> on Ni surface becomes a double-edged sword, resulting in high efficiency and undesired carbon accumulation. To improve the anti-carbon accumulation ability, the catalytic communities have proposed effective strategies, represented by i) regulation and stabilization of small metal nanoparticles, ii) regulation of the support improving oxidation of deposited carbon. Herein, we highlight their effects in enhancing anti-carbon accumulation ability and discuss their anti-carbon accumulation abilities under realistic DRM reaction conditions, aiming at inspiring more interesting studies toward DRM and even the whole catalytic field.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116671"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145903491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-02-01Epub Date: 2025-12-11DOI: 10.1016/j.jcat.2025.116633
Xiaobing Shi , Qianbao Wu , Yu-Nan Yi , Junshan Li
{"title":"Efficient chlorine evolution via silver-complex-mediated suppression of hydroxyl radicals on acid-resistant Fe2O3(Sn)/WO3 Z-scheme photoanodes","authors":"Xiaobing Shi , Qianbao Wu , Yu-Nan Yi , Junshan Li","doi":"10.1016/j.jcat.2025.116633","DOIUrl":"10.1016/j.jcat.2025.116633","url":null,"abstract":"<div><div>Photoanodic chlorine evolution, as the anodic half-reaction for hydrogen production, enhances solar energy conversion while enabling sustainable Cl<sub>2</sub> synthesis. However, its practical application is hampered by the low Cl<sub>2</sub> Faradaic efficiency (FE) and the poor stability of photoanodes under the requisite harsh acidic conditions. <em>Here</em>, we report an Fe<sub>2</sub>O<sub>3</sub>(Sn)/WO<sub>3</sub> photoanode that achieves a Cl<sub>2</sub> FE of up to 96% upon the introduction of trace Ag<sup>+</sup>, compared with ∼ 60% without Ag<sup>+</sup>, while sustaining stable photocurrent for over 500 h at 1.5 V (RHE) in acidic simulated saline medium (0.5 M NaCl, pH = 1). Structural characterization reveals that the WO<sub>3</sub> overlayer forms a Z-scheme heterojunction with the Fe<sub>2</sub>O<sub>3</sub>(Sn), which not only enhances hole injection but also serves as an acid-resistant protective layer. In situ electron paramagnetic resonance (EPR) demonstrates that water oxidation to •OH radicals competes with the chlorine evolution reaction (Cl<sub>2</sub>ER), whereas trace Ag<sup>+</sup> preferentially directs hole transfer. Moreover, in situ Raman spectroscopy identifies [AgCl<sub>2</sub>(Cl<sub>2</sub>)]<sup>−</sup> intermediates, verifying the Ag<sup>+</sup>-mediated pathway. This work expands the repertoire of strategies for achieving efficient and durable chloride oxidation, offering a robust pathway in challenging acidic saline media.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116633"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145732152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic regulation of charge dynamics and reaction pathways for selective photocatalytic NO oxidation to nitrate via oxygen vacancies and plasmonic Ag nanoparticles","authors":"Dengyu Jiao , Peng Chen , Xing’an Dong , Jiazhen Liao , Wenjie He , Wendong Zhang","doi":"10.1016/j.jcat.2025.116650","DOIUrl":"10.1016/j.jcat.2025.116650","url":null,"abstract":"<div><div>Selective photocatalytic oxidation of NO to nitrate (NO<sub>3</sub><sup>–</sup>), rather than toxic NO<sub>2</sub>, remains highly challenging due to uncontrollable reaction intermediates and extremely low charge migration efficiency. Herein, we design a photocatalyst (BiSbO<sub>4</sub>/AgCl-Ag-70) that integrates a BiSbO<sub>4</sub>/AgCl heterojunction with spatially correlated Ag nanoparticles (NPs) and oxygen vacancies (OVs) to synergistically regulated charge dynamics and reaction pathways. The formation of a heterojunction establishes a built-in electric field, which facilitates directional electron transfer. Meanwhile, Ag NPs and abundant OVs induce localized electron redistribution, promoting the generation of reactive oxygen species (ROS), and enhancing the selectivity toward nitrate. The BiSbO<sub>4</sub>/AgCl-Ag-70 photocatalyst immobilized on ceramic foam achieved 90.0 % NO removal efficiency with excellent stability, maintaining 79.0 % removal after 720 min, while generating only 22 ppb (4.2 %) of toxic NO<sub>2</sub>. Furthermore, the BiSbO<sub>4</sub>/AgCl-Ag-70 catalyst demonstrated a high nitrate selectivity of 89.2 %. Mechanistic studies combining <em>in situ</em> DRIFTS and DFT calculations reveal that the introduction of OVs activates O<sub>2</sub>/H<sub>2</sub>O molecules, thereby promoting a reactive oxygen species-dominated pathway for the conversion of NO to NO<sub>3</sub><sup>–</sup>, rather than the route involving the formation of the toxic intermediate NO<sub>2</sub>. This work provides a strategy for the selective removal of NO by designing a material with rapid interface charge transfer and abundant surface active sites, thereby achieving precise regulation of the photocatalytic oxidation pathways.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116650"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145813457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-02-01Epub Date: 2025-12-02DOI: 10.1016/j.jcat.2025.116607
Yusen Li , Xiaobin Hou , Xitong Ren , Yajie Tian , Jiajie Sun , Feng Bai
{"title":"Engineering photocatalytic active centers in covalent organic framework isomers via A/K-region positional isomerization of pyrene for H2O2 production","authors":"Yusen Li , Xiaobin Hou , Xitong Ren , Yajie Tian , Jiajie Sun , Feng Bai","doi":"10.1016/j.jcat.2025.116607","DOIUrl":"10.1016/j.jcat.2025.116607","url":null,"abstract":"<div><div>The integration of dual active sites for concurrent oxygen reduction (ORR) and water oxidation (WOR) within a single covalent organic framework (COF) remains a fundamental challenge in the artificial photosynthesis of H<sub>2</sub>O<sub>2</sub>. To address this, we report a positional isomerization strategy that precisely engineers the substitution sites on a pyrene core, constructing four isomeric pyrene-based COFs (A-Py-COF, KA-Py-COF, AK-Py-COF, and K-Py-COF). Structure-activity studies reveal that K-region substitution is pivotal in activating the framework for efficient stepwise two-electron ORR and two-electron WOR. As a result, the optimized K-Py-COF achieves a remarkable photocatalytic H<sub>2</sub>O<sub>2</sub> production rate of 468.3 μmol g<sup>–1</sup>h<sup>−1</sup> in pure water without sacrificial agents, representing a 7.8-fold enhancement over its A-Py-COF analogue. In a biphasic water-benzyl alcohol system, the H<sub>2</sub>O<sub>2</sub> production rate of K-Py-COF increases dramatically by 15.3 times, a performance that surpasses most state-of-the-art metal-free COF photocatalysts. By establishing a clear correlation between molecular isomerism and the localization of redox-active sites, this work provides a novel design principle for developing dual-channel COFs toward sustainable H<sub>2</sub>O<sub>2</sub> synthesis.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116607"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145651295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-02-01Epub Date: 2025-12-15DOI: 10.1016/j.jcat.2025.116639
Yiping Chen , Xiangjing Xie , Xiayi Hu , Bei Long , Guo-Jun Deng , Ting Song
{"title":"Interlayer stacking modulation of flexible covalent organic frameworks for broad-spectrum-driven H2O2 production in seawater","authors":"Yiping Chen , Xiangjing Xie , Xiayi Hu , Bei Long , Guo-Jun Deng , Ting Song","doi":"10.1016/j.jcat.2025.116639","DOIUrl":"10.1016/j.jcat.2025.116639","url":null,"abstract":"<div><div>Compared with rigid covalent organic frameworks (COFs), flexible COFs exhibit adaptive structural dynamics that help mitigate collapse risks in harsh environments. However, their conformational flexibility often leads to bonding misorientation during synthesis, and precise interlayer stacking regulation remains challenging. Herein, we develop an aldehyde-mediated exchange strategy to construct three flexible COFs with tailored stacking modes: AA stacking (Sq-Ben-COF) mediated by benzaldehyde, AB stacking via 2-thiophenecarboxaldehyde, and unspecified stacking. Using only visible light and without sacrificial agents in natural seawater, Sq-Ben-COF achieved a record H<sub>2</sub>O<sub>2</sub> production rate, surpassing AB-stacked and unspecified counterparts. Notably, Sq-Ben-COF also demonstrates photocatalytic H<sub>2</sub>O<sub>2</sub> production activity under near-infrared light irradiation. Remarkably, all three COFs exhibited approximately 2-fold higher activity in seawater than in freshwater systems. Mechanistic insights reveal that AA stacking facilitates directional photoexcited electron migration, while optimized interlayer stacking enhances proton transport and active-site accessibility. This work establishes aldehyde exchange as a dual-functional approach to engineer ordered flexible COFs and regulate stacking modes, advancing their applications in energy and catalysis.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116639"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-02-01Epub Date: 2025-12-05DOI: 10.1016/j.jcat.2025.116618
Xueqiang Zhang , Florian Kraushofer , Qi Yuan , Yu-Xuan Wang , Matthias Krinninger , Zikang Su , Haozhe Gai , Kenneth Goodman , Xianze Zhang , Yu Wang , Xiao Tong , Tao Cheng , Jian-Feng Wu , Barbara A.J. Lechner , Monika Blum
{"title":"Pd-promoted reduction and restructuring of an In2O3-based catalyst for CO2 hydrogenation at room temperature","authors":"Xueqiang Zhang , Florian Kraushofer , Qi Yuan , Yu-Xuan Wang , Matthias Krinninger , Zikang Su , Haozhe Gai , Kenneth Goodman , Xianze Zhang , Yu Wang , Xiao Tong , Tao Cheng , Jian-Feng Wu , Barbara A.J. Lechner , Monika Blum","doi":"10.1016/j.jcat.2025.116618","DOIUrl":"10.1016/j.jcat.2025.116618","url":null,"abstract":"<div><div>An unconventional reaction mechanism in an In<sub>2</sub>O<sub>3</sub>/Pd(1<!--> <!-->1<!--> <!-->1) inverse model catalyst for the CO<sub>2</sub> hydrogenation reaction has been uncovered: In<sub>2</sub>O<sub>3</sub> is partially reduced at room temperature in a reaction atmosphere as a result of its direct contact with Pd(1<!--> <!-->1<!--> <!-->1), which is an efficient H<sub>2</sub> splitter. The reduction induces changes in surface free energy, leading to a dynamical restructuring at the In<sub>2</sub>O<sub>3</sub>/Pd(1<!--> <!-->1<!--> <!-->1) interface <em>via</em> formation of InO<sub>x</sub> and outward diffusion of Pd, as revealed by ambient pressure X-ray photoelectron spectroscopy, X-ray absorption spectroscopy and density functional theory simulations. This dynamical restructuring eventually promotes the growth of 2D InPd<sub>y</sub>O<sub>x</sub> nanodomains as the catalytically active phase and the exclusive formation of methanol upon hydrogenation of CO<sub>2</sub> at room temperature. A comparable high selectivity toward CH<sub>3</sub>OH was found in more realistic bulk catalytic systems (2 <em>wt</em>% Pd/In<sub>2</sub>O<sub>3</sub> catalyst and commercial CZA catalyst). Scanning tunneling microscopy under ultrahigh vacuum and ambient pressure reaction atmospheres further reveals the structural dynamics at the InO<sub>x</sub>/Pd(1<!--> <!-->1<!--> <!-->1) interface, where we follow <em>in situ</em> the evolution of the InO<sub>x</sub> particles on Pd(1<!--> <!-->1<!--> <!-->1) and the mobility of the InPd<sub>y</sub>O<sub>x</sub> nanodomains in a CO<sub>2</sub> + H<sub>2</sub> environment. The present findings of the formation of a mixed oxide phase in a dynamically restructuring metal/reducible-oxide interface indicate further implications for other heterogeneous catalytic systems beyond the present CO<sub>2</sub> hydrogenation example and highlight the importance of <em>in situ</em> investigations.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116618"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145690083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Journal of CatalysisPub Date : 2026-02-01Epub Date: 2025-11-28DOI: 10.1016/j.jcat.2025.116582
Dmitriy M. Zakharov
{"title":"Catalytically activated isotope exchange in multicomponent systems gas–solid: statistical theory and its application on example of proton-conducting oxides","authors":"Dmitriy M. Zakharov","doi":"10.1016/j.jcat.2025.116582","DOIUrl":"10.1016/j.jcat.2025.116582","url":null,"abstract":"<div><div>This study aims to develop a comprehensive theory of the kinetics of catalytically activated isotope exchange in closed heterogeneous systems, grounded in the ideal statistical laws governing isotope distribution. Based on this theory, all systems exhibiting isotope exchange are categorised into three groups: one-component, two-component, and multicomponent, according to isotope behaviour. It is demonstrated that any mechanism of catalytically activated isotope exchange can be represented through subtypes of exchange characterised by atom transfer quasireactions, which mediate transitions between distinct types of isotope distribution within the components. An algorithm for describing experimental data within this theoretical framework was formulated and applied to a range of literature data concerning H/D exchange in ethylene, methane, methane–hydrogen, ethane–hydrogen, and methanol–hydrogen mixtures over metal and oxide-supported catalysts. Employing the theory, the mechanism of catalytically activated isotope exchange in pure methane and methane–hydrogen mixtures over BaCe<sub>0.7</sub>Zr<sub>0.1</sub>Y<sub>0.1</sub>Yb<sub>0.1</sub>O<sub>3−α</sub>, a promising proton-conducting catalyst, was investigated, revealing catalytic heterogeneity of active sites and H<sub>2</sub>-induced kinetic isotope effects.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116582"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145611652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A versatile one-pot strategy for the synthesis of organosilicon-functionalized polyolefins","authors":"Rafał Januszewski , Bartosz Orwat , Michał Dutkiewicz , Ireneusz Kownacki","doi":"10.1016/j.jcat.2025.116588","DOIUrl":"10.1016/j.jcat.2025.116588","url":null,"abstract":"<div><div>We report a facile <em>one-pot</em> catalytic strategy for the synthesis of organosilicon-functionalized polyolefins — a long-standing challenge in polymer science. This streamlined approach integrates the hydrosilylation of polybutadiene with subsequent hydrogenation of the resulting silyl-functionalized intermediates, all under unified reaction conditions. The developed protocol exhibits exceptional functional group tolerance, enabling the incorporation of a broad spectrum of organic moieties that are typically incompatible with conventional copolymerization or post-polymerization methods. Remarkably, the degree of functionalization can be precisely tuned simply by adjusting the stoichiometric ratio of the organosilicon reagent to vinyl groups. This level of control, versatility, and simplicity has not been demonstrated previously in the functionalization of polyolefins. The methodology paves the way for the tailor-made design of advanced silicon-containing polyolefins with attractive functional groups, opening new avenues for applications in materials science, surface engineering, and beyond.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"454 ","pages":"Article 116588"},"PeriodicalIF":6.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}