Journal of Catalysis最新文献_第6页

Photocatalytic H2 production from HCOOH over Pd/TiO2: Pd2+/Pd0 self-cycle and adsorption-induced electron transfer mechanism HCOOH在Pd/TiO2上光催化制氢：Pd2+/Pd0自循环及吸附诱导的电子转移机理

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jcat.2026.116697

Hong Wang , Yan Wang , Yong Jia , Lina Guo , Gang Cheng , Zhongming Wang , Kai Yang , Wenxin Dai

{"title":"Photocatalytic H2 production from HCOOH over Pd/TiO2: Pd2+/Pd0 self-cycle and adsorption-induced electron transfer mechanism","authors":"Hong Wang , Yan Wang , Yong Jia , Lina Guo , Gang Cheng , Zhongming Wang , Kai Yang , Wenxin Dai","doi":"10.1016/j.jcat.2026.116697","DOIUrl":"10.1016/j.jcat.2026.116697","url":null,"abstract":"<div><div>Research on the photocatalytic production of H2 from HCOOH decomposition provides scientific guidance for hydrogen energy development. In this study, a Pd-doped oxygen-deficient TiO2 catalyst featuring mixed-valence PdOx atomic cluster nests, oxygen vacancies (Vo), and hydroxyl groups was synthesized. Activity tests revealed that 0.4 Pd-def-TiO2 sample performed best under visible light, producing H2 at a rate of 3180.66 μmol·g−1·h−1, a 124-fold enhancement over def-TiO2. Combined characterization and theoretical calculation results showed that Pd-def-TiO2 formed a “step-like” energy band structure, and the separation and transfer of photogenerated carriers have been optimized in conjunction with Vo and surface hydroxyl groups. Further, HCOOH adsorption was followed by the formation of a bidentate HCOOBX species, in which one oxygen atom of the adsorbate was hydrogen bonded with a surface hydroxyl group, while the other end was adsorbed onto a Pd0 site. This process involved simultaneous electron loss and gain, resulting in a distinctive “valley-shaped” gas-sensing response, thus promoting directional activation of HCOOH, facilitating complete redox reactions. Moreover, photoreduction and Vo (near Pd sites) promoted electron delocalization in mixed-valent Pd2+/Pd0 species, enabling self-cycling of these active sites, leading to enhanced efficiency and stability during photocatalytic hydrogen evolution from HCOOH. This study contributes to the design of highly efficient and stable catalysts, and advances the understanding of the underlying reaction mechanisms.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116697"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956884","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}

引用次数: 0

Bio-derived quantum dot based luminescent solar concentrator for photocatalytic conversion of fructose to 5-hydroxymethylfurfural via iron(II) complex catalysis 利用铁（II）配合物催化将果糖转化为5-羟甲基糠醛的生物衍生量子点发光太阳能聚光器

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jcat.2026.116701

Mohammad Bashiri, Mona Hosseini-Sarvari

{"title":"Bio-derived quantum dot based luminescent solar concentrator for photocatalytic conversion of fructose to 5-hydroxymethylfurfural via iron(II) complex catalysis","authors":"Mohammad Bashiri, Mona Hosseini-Sarvari","doi":"10.1016/j.jcat.2026.116701","DOIUrl":"10.1016/j.jcat.2026.116701","url":null,"abstract":"<div><div>In the present study, a novel benzimidazole ligand was synthesized and used as a precursor for the preparation of iron(II) complex. Following the synthesis, a comprehensive array of experimental investigations was undertaken to explore the structural, photo-electronic, and electrochemical characteristics of the iron(II) complex. The complex was subsequently utilized as an efficient photocatalyst for the selective synthesis of 5-hydroxymethylfurfural (HMF) from fructose. In this catalytic process, a luminescent solar concentrator (LSC) system was employed, further augmented by plant-derived quantum dots. This innovative optical system significantly enhanced the overall efficiency of the photocatalytic reaction. We selected a colorless transparent panel for the LSC device because the emission from the quantum dots falls within the blue region, which overlaps with the absorption spectrum of our complex and can promote the progress of the reaction. The yield of 5-hydroxymethylfurfural from fructose in this continuous flow system under solar irradiation was 91%, whereas in the batch system, a yield of only 70% was achieved under blue light irradiation. Furthermore, this work contributes novel insights into the potential of iron(II) complex-based photocatalysts for driving intricate chemical transformations under environmentally benign and sustainable conditions.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116701"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956886","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}

引用次数: 0

Synergistic effect of Cu+-Cu0 sites and oxygen vacancies at MOF-derived Cu-ZrO2 interface for the reverse water–gas shift reaction mof衍生Cu- zro2界面上Cu+-Cu0位点和氧空位的协同效应对逆向水气转移反应的影响

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.jcat.2026.116679

Huilin Zhou , Yahui Yang , Riying Zeng, Zhenzhen Huang, Qihan Huang, Yidan Li, Lihua Wang

{"title":"Synergistic effect of Cu+-Cu0 sites and oxygen vacancies at MOF-derived Cu-ZrO2 interface for the reverse water–gas shift reaction","authors":"Huilin Zhou , Yahui Yang , Riying Zeng, Zhenzhen Huang, Qihan Huang, Yidan Li, Lihua Wang","doi":"10.1016/j.jcat.2026.116679","DOIUrl":"10.1016/j.jcat.2026.116679","url":null,"abstract":"<div><div>The development of efficient and stable catalysts for the reverse water–gas shift (RWGS) reaction is crucial for mitigating CO2 emissions. Although cost-effective, conventional copper-based catalysts suffer from valence fluctuations (between Cu+ and Cu0) and particle sintering. This study developed a Cu/ZrO2 catalyst via a metal–organic framework (MOF) derivation strategy to enhance the interaction at Cu-ZrO2 interface and the catalyst stability. Using a bimetallic MOF-818 as a precursor, the Cu/ZrO2-MOF catalyst was prepared through pyrolysis/reduction. The catalyst exhibited abundant oxygen vacancies (19.1%) and an optimized Cu+/Cu0 ratio (1.12). Under RWGS conditions, CO2 conversion reached 39.5% with complete CO selectivity at 450 ℃, surpassing the performance of conventional catalysts. Notably, it showed no significant deactivation over 224 h, including a period under high gas hourly space velocity. Post-reaction characterization confirmed the stability of active sites, which is attributed to the metal-support interaction. Mechanistic studies revealed a synergistic effect at the interface, whereby CO2 is activated by Cu+ sites and oxygen vacancies, while H2 is dissociated on Cu0 sites,which elucidates the synergistic mechanism of interfacial active sites and thus provides a general design strategy for developing sinter-resistant and high-performance Cu-based catalysts.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116679"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145908155","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}

引用次数: 0

Promoting the in-situ generation and stabilizing of active β-NiOOH on nickel sulfide nanosheet for superior electrochemical methanol oxidation 促进活性β-NiOOH在硫化镍纳米片上的原位生成和稳定，实现优异的电化学甲醇氧化

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-03 DOI: 10.1016/j.jcat.2026.116668

Yu-Nan Yi , Xiao-Dan Guan , Xin-Yu Peng , Xiaobing Shi

{"title":"Promoting the in-situ generation and stabilizing of active β-NiOOH on nickel sulfide nanosheet for superior electrochemical methanol oxidation","authors":"Yu-Nan Yi , Xiao-Dan Guan , Xin-Yu Peng , Xiaobing Shi","doi":"10.1016/j.jcat.2026.116668","DOIUrl":"10.1016/j.jcat.2026.116668","url":null,"abstract":"<div><div>NiOOH is regarded as the most active species for selective methanol oxidation reaction (MOR), but the high oxidation energy of NiOOH makes it hard to directly synthesize, except under high anodic polarization. Besides, the high active β-NiOOH is prone to be irreversibly over-oxidized to less active and unstable γ-NiOOH. Herein, we propose a cobalt-mediated strategy to promote the in-situ generation of active β-NiOOH at ultralow applied potential on Ni3S2 nanosheets and prevent overoxidation of β-NiOOH to γ-NiOOH during MOR, this promoting effect is confirmed by the in-situ Raman spectroscopy analysis. Furthermore, DFT calculations reveal that substitution of slight Co atoms for Ni atoms in Ni3S2 weakens the Ni–S bonds and formation energy of S vacancies, as well as enhancing the *OH adsorption at Ni sites, thereby promoting the in-situ generation and stabilizing of β-NiOOH. Consequently, the optimal Ni2.94Co0.06S2@NF catalyst exhibts superior MOR performance, with a potential of 1.41 V vs. RHE at 100 mA cm−2 and above 97 % of FEformate at ∼300 mA cm−2. This study provides a deep insight into modulating surface reconstruction of Ni-based nanocatalyst to promote in-situ generating of real and robust active site for MOR and other nucleophile oxidation reactions.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116668"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145895292","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}

引用次数: 0

The impact of active site character on the selectivity of aldehyde-ketone cross-aldol condensation reactions 活性位点特征对醛酮交叉醛缩反应选择性的影响

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.jcat.2026.116687

Brandon Elliott Oliphant, Zachary W. Meduna, J.Will Medlin

{"title":"The impact of active site character on the selectivity of aldehyde-ketone cross-aldol condensation reactions","authors":"Brandon Elliott Oliphant, Zachary W. Meduna, J.Will Medlin","doi":"10.1016/j.jcat.2026.116687","DOIUrl":"10.1016/j.jcat.2026.116687","url":null,"abstract":"<div><div>Mixed-aldol condensation of acetaldehyde and acetone was investigated over metal oxide and aluminosilicate catalysts to understand how changing the type of active site affects the selectivity of aldehyde-ketone cross-aldol condensation reactions. On TiO2 and MgO, where basic sites play a central role, high selectivity toward acetaldehyde self-condensation was observed. In contrast, reactions on the aluminosilicates, catalyzed by acid sites, had high selectivity toward the cross-condensation reaction. Temperature programmed desorption (TPD) studies showed that TiO2 binds acetaldehyde and its coupling products strongly, whereas acetone is adsorbed weakly enough to mostly undergo desorption without reaction. Similar studies on amorphous silica-alumina (ASA) showed the existence of both strongly bound acetaldehyde and strongly bound acetone, evidenced by the desorption of acetaldehyde and acetone coupling products. The discrepancy in reactant binding between surfaces is also supported by reaction order studies, which showed that on TiO2 acetone does not displace acetaldehyde from the catalyst surface, whereas on the aluminosilicate catalysts acetone readily displaces acetaldehyde. Kinetic isotope effect experiments showed that although selectivity is different across the two types of catalysts, C–H bond activation to form the nucleophilic enolate is likely kinetically relevant on both materials. High selectivity to cross-condensation was observed on HZSM-5 with a variety of SiO2:Al2O3 ratios, with kinetic results indicating a tradeoff between the number and strength of the active sites.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116687"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920474","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}

引用次数: 0

Cavity-confined Cu2O nanoreactors for efficient CO2 electroreduction to ethylene 腔限Cu2O纳米反应器用于高效CO2电还原乙烯

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.jcat.2026.116710

Xiao-Rong Wen , Shan-Shan Chen , Wen-Jun Xie , Hong-Ru Li , Liang-Nian He

{"title":"Cavity-confined Cu2O nanoreactors for efficient CO2 electroreduction to ethylene","authors":"Xiao-Rong Wen , Shan-Shan Chen , Wen-Jun Xie , Hong-Ru Li , Liang-Nian He","doi":"10.1016/j.jcat.2026.116710","DOIUrl":"10.1016/j.jcat.2026.116710","url":null,"abstract":"<div><div>Electrocatalytic carbon dioxide reduction (eCO2R) to ethylene (C2H4) offers a promising pathway toward carbon–neutral cycles and sustainable chemical synthesis. In eCO2R to C2H4, copper-based electrocatalysts, particularly Cu2O, have been widely used. Nevertheless, product selectivity to C2H4 is still quite limited due to the insufficient enrichment of key intermediates and slow C–C coupling kinetics. Herein, the double-shelled hollow mesoporous Cu2O was fabricated through the soft-templating method. And the cavity size and pore architecture of the resulting Cu2O catalysts could be precisely tailored by adjusting the alkyl chain length of the surfactant templates alkyltrimethylammonium bromides. When applied to eCO2R, the as-prepared Cu2O material with tetradecyltrimethylammonium bromide (TTAB) as template exhibited a remarkable Faradaic efficiency of 43.3 ± 0.8% for C2H4 at an industrial-level current density of 549.8 mA cm−2. Experimental and theoretical investigations reveal that its high activity and selectivity toward C2H4 stem from the suitable cavity configuration, which enriches key *CO intermediates and promotes their dimerization via a spatial confinement effect. This study provides valuable insights into the architectural design of efficient catalysts for CO2-to-C2H4 conversion.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116710"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014718","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}

引用次数: 0

Axial coordination and asymmetric structure synergistically induce electron polarization at Ni sites to promote efficient CO2 electroreduction into CO 轴向配位和不对称结构协同诱导Ni位点的电子极化，促进CO2高效电还原成CO

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.jcat.2026.116706

Jinchuan Zhang , Yunpeng Zou , Shuai Chen , Yang Zhao , Di Jin , Jialin Chen , Jijie Li , Yuewen Mu , Wen-Yan Zan , Fengwei Zhang

{"title":"Axial coordination and asymmetric structure synergistically induce electron polarization at Ni sites to promote efficient CO2 electroreduction into CO","authors":"Jinchuan Zhang , Yunpeng Zou , Shuai Chen , Yang Zhao , Di Jin , Jialin Chen , Jijie Li , Yuewen Mu , Wen-Yan Zan , Fengwei Zhang","doi":"10.1016/j.jcat.2026.116706","DOIUrl":"10.1016/j.jcat.2026.116706","url":null,"abstract":"<div><div>Aiming at the critical challenges of competitive hydrogen evolution reaction (HER) and sluggish reaction kinetics in CO2 electroreduction reaction (CO2RR), a uniquely structured nitrogen-doped porous carbon-embedded Ni single-atom catalyst (Ni-N3O2/NPC) was designed and synthesized by virtue of density functional theory (DFT) calculations and mild thermal treatment strategies. The as-synthesized catalyst was verified by aberration-corrected scanning transmission electron microscopy (AC-STEM) and X-ray absorption spectroscopy (XAS) to possess an asymmetric configuration featuring Ni-N3O1 motif with axial oxygen ligand, which agrees well with the DFT modeling. CO2RR results validated that the Ni-N3O2/NPC-400 catalyst exhibited 99% Faraday efficiency for CO (FECO) across a wide potential window of −0.3 to −1.0 V vs. reversible hydrogen electrode (RHE) in flow cell, reaching a maximum FECO of 99.9% at −1.0 V vs. RHE with an turnover frequency (TOF) of 63,579 h−1, showcasing potential for industrial CO2 emission reduction. In situ attenuated total reflection infrared spectroscopy (ATR-IR) further confirmed the formation of key *COOH and *CO intermediates during the CO2RR process. Theoretical calculation unveiled that the axial oxygen ligand in Ni-N3O2 configuration synergistically promoted CO2RR kinetics by inducing electronic polarization. The present work not only provides a theoretical basis for axial ligand engineering to regulate the electronic state of single-atom catalysts, but also opens up a new direction for designing high-efficiency CO2RR catalysts.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116706"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146014717","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}

引用次数: 0

Nitrogen-doped manganese oxide catalysts boost oxidative cyanation of benzyl alcohols 氮掺杂氧化锰催化剂促进苯甲醇氧化氰化反应

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-08 DOI: 10.1016/j.jcat.2026.116688

Liping Tan, Li Fang, Yao Zhang, Jinglin Tong, Yuxin Zhuang, Chunya Li, Lianqing Chen, Shiwei Jin

{"title":"Nitrogen-doped manganese oxide catalysts boost oxidative cyanation of benzyl alcohols","authors":"Liping Tan, Li Fang, Yao Zhang, Jinglin Tong, Yuxin Zhuang, Chunya Li, Lianqing Chen, Shiwei Jin","doi":"10.1016/j.jcat.2026.116688","DOIUrl":"10.1016/j.jcat.2026.116688","url":null,"abstract":"<div><div>Environmentally friendly liquid-phase selective oxidation of alcohols with oxygen as oxidant agent is a green strategy for synthesising nitriles and amides. Therein, the design and preparation of heterogeneous catalysts with high activity and selectivity is a hot research topic in this field. Here, we report that nitrogen-doped manganese oxide catalysts have been synthesized by a hydrothermal method, which can oxidize benzyl alcohol to synthesize benzonitrile and benzamide in a cyanide-free environment with high efficiency. As the reaction time and temperature were 6 h and 150 °C, the conversion of benzyl alcohol (feed dosage: 1 mmol) and the selectivity of benzamide were >99 % and 94 %, respectively. The catalyst could be reused at least 5 times without significantly reducing activity. Additionally, the catalyst exhibits broad applicability, capable of catalyzing the cyanidation of various aromatic and aliphatic alcohols. The enhancement in N-MnO2 catalyst performance is attributed to the introduction of nitrogen, which increases the content of low-valent manganese and oxygen vacancies within the catalyst. It contributes to improved selectivity for benzamide.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116688"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920099","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}

引用次数: 0

Optimal photosynthesis of 1O2 via energy transfer over linker-engineered cyclooctatetrathiophene-based porous aromatic frameworks 通过连接剂工程环四噻吩基多孔芳香框架的能量转移实现1O2的最佳光合作用

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-02 DOI: 10.1016/j.jcat.2026.116667

Linzhu Cao , Tianye Gao , Tianyu Qiu , Xin Tao

{"title":"Optimal photosynthesis of 1O2 via energy transfer over linker-engineered cyclooctatetrathiophene-based porous aromatic frameworks","authors":"Linzhu Cao , Tianye Gao , Tianyu Qiu , Xin Tao","doi":"10.1016/j.jcat.2026.116667","DOIUrl":"10.1016/j.jcat.2026.116667","url":null,"abstract":"<div><div>Precisely tuning the excitonic effect of porous organic semiconductors is essential to achieve efficient photosynthesis of singlet oxygen (1O2) from ground state oxygen (3O2) via energy transfer pathway. In this study, a linkage engineering strategy is proposed to tune the excitonic effect of cyclooctatetrathiophene-based porous organic semiconductor photocatalysts. It is found that altering linear linkers significantly influence the excitonic effect of these semiconductors. Notably, the highly twisted dimethylfluorene-linked COTh-based polymeric system possesses higher exciton binding energy and improved intersystem crossing (ISC) efficiency, which are favorable for photoinduced 1O2 generation through energy transfer pathway. PAF-374 achieved a record-high 1O2 generation rate (133.8 μM min−1) with 98 % selectivity in aerobic photocatalytic system when using furfuryl alcohol as probe. This unique performance enables potential applications for photocatalytic drug synthesis (modafinil and artemisinin) and wastewater treatment over this photocatalyst system. In addition, a detailed structure–property correlation is revealed by theoretical calculations.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116667"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145895312","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}

引用次数: 0

Zeolite subcrystal-induced formation of short and curved NiMoS2 slabs toward highly efficient hydrodesulfurization 沸石亚晶诱导短弯NiMoS2板的形成及高效加氢脱硫

IF 6.5 1区化学

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-05 DOI: 10.1016/j.jcat.2026.116672

Wanyi Li , Wenbiao Zhang , He Li , Yi Tang , Yahong Zhang

{"title":"Zeolite subcrystal-induced formation of short and curved NiMoS2 slabs toward highly efficient hydrodesulfurization","authors":"Wanyi Li , Wenbiao Zhang , He Li , Yi Tang , Yahong Zhang","doi":"10.1016/j.jcat.2026.116672","DOIUrl":"10.1016/j.jcat.2026.116672","url":null,"abstract":"<div><div>Molybdenum disulfide (MoS2) holds promise in catalysis due to its edge-confined activity, but its structural rigidity and strong in-plane Mo-S bonding limit the exposure of active sites. Herein, we propose a high-curvature support-induced method using ultrasmall ZSM-5 subcrystals (Z-5-SC) to tailor the formation of NiMoS2 on them. The high curvature and abundant external silanol groups of Z-5-SC induce tensile strain and strong interfacial anchoring, generating short and curved NiMoS2 slabs with enhanced sulfur vacancies and Ni-Mo-S phase formation. Compared to nanocrystalline zeolite supports, the NiMoS2/Z-5-SC exhibits 7.3-fold higher hydrodesulfurization (HDS) activity toward 4,6-dimethyldibenzothiophene (kHDS = 0.624 h−1), rapid hydrodenitrogenation (HDN) response with minimized HDS suppression in simultaneous HDS and HDN reactions, and excellent cycling stability over 15 cycles. This work presents an effective curvature-engineering strategy to enhance the catalytic potential of MoS2, offering new insights into the design of engineered two-dimensional materials for hydrotreating and beyond.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"455 ","pages":"Article 116672"},"PeriodicalIF":6.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145903496","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}

引用次数: 0