Molecular Catalysis最新文献_第7页

Structural and surface properties of oxides derived from layered double hydroxides (LDHs): Effects on the bioproducts obtained in the glycerol valorization 由层状双氢氧化物（LDHs）衍生的氧化物的结构和表面性质：对甘油增值过程中获得的生物产物的影响

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-04 DOI: 10.1016/j.mcat.2025.115312

João Victor S. Cardoso , Antonio J. Martins , Alcineia C. Oliveira , José A. Lima Junior , Lucas S.A. Olivier , Ramón R. Peña-García , Marco A. Morales , Celio L. Cavalcante , José Jiménez-Jiménez , Enrique Rodríguez-Castellón

{"title":"Structural and surface properties of oxides derived from layered double hydroxides (LDHs): Effects on the bioproducts obtained in the glycerol valorization","authors":"João Victor S. Cardoso , Antonio J. Martins , Alcineia C. Oliveira , José A. Lima Junior , Lucas S.A. Olivier , Ramón R. Peña-García , Marco A. Morales , Celio L. Cavalcante , José Jiménez-Jiménez , Enrique Rodríguez-Castellón","doi":"10.1016/j.mcat.2025.115312","DOIUrl":"10.1016/j.mcat.2025.115312","url":null,"abstract":"<div><div>Copper- and cobalt-promoted iron based-double layered hydroxides (LDHs) were used as precursors to assess their activity in acetalization of glycerol with benzaldehyde (AG reaction) to produce cyclic glycerol derivates. The transformation of the LDHs into their corresponding Cu<sub>2</sub>Fe, Co<sub>2</sub>Fe and Cu<sub>0.5</sub>Co<sub>0.5</sub>Fe oxides rendered CuFe<sub>2</sub>O<sub>4</sub> and/or CoFe<sub>2</sub>O<sub>4</sub> with desirable structural and surface properties, as observed by XRD, Raman, FTIR, Mössbauer and XPS results. Compared with binary Cu<sub>2</sub>Fe and Co<sub>2</sub>Fe, adequate loading of synthesized ternary Cu<sub>0.5</sub>Co<sub>0.5</sub>Fe via urea precursor resulted in two stable spinel phases and evenly distributed active sites on the catalyst surface, as shown by SEM-EDS and textural properties. The effects of the reaction conditions and the recyclability studies illustrated that Cu<sub>0.5</sub>Co<sub>0.5</sub>Fe is more effective in AG reaction with high selectivities near 40 % toward cyclic acetal products. The structural and surface features of the Cu<sup>2+</sup>, Co<sup>2+</sup>and Fe<sup>3+</sup> ions present in the spinel oxides were responsible for strengthening their charge transfer and synergetic effects, besides the formation of oxygen vacancy defects, which promoted an efficient recyclable catalyst for AG reaction.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115312"},"PeriodicalIF":3.9,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of iron and molybdenum on silica-based mesoporous catalysts for glycerol conversion to solketal 铁和钼对硅基介孔催化剂中甘油转化为溶胶的影响

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-03 DOI: 10.1016/j.mcat.2025.115302

Adriene de Moura Barboza , Crislaurio Gonçalves da Silva , Ailton José Terezo , Robson Carlos de Andrade , Raphael Rodrigues , Tiago André Denck Colman , Adriano Buzutti de Siqueira , Cláudio Teodoro de Carvalho

{"title":"Effect of iron and molybdenum on silica-based mesoporous catalysts for glycerol conversion to solketal","authors":"Adriene de Moura Barboza , Crislaurio Gonçalves da Silva , Ailton José Terezo , Robson Carlos de Andrade , Raphael Rodrigues , Tiago André Denck Colman , Adriano Buzutti de Siqueira , Cláudio Teodoro de Carvalho","doi":"10.1016/j.mcat.2025.115302","DOIUrl":"10.1016/j.mcat.2025.115302","url":null,"abstract":"<div><div>This research aims to develop and characterize innovative metal-based catalysts made of micro-mesoporous silica enriched with iron and molybdenum. The goal is to optimize the acetalization of glycerol with acetone, promoting the production of the bioadditive solketal at ambient temperatures. X-ray diffraction analyses demonstrated the formation of orthorhombic molybdenum trioxide, showcasing excellent oxide dispersion on the support and remarkably low crystallinity. X-ray photoelectron spectroscopy (XPS) analyses have convincingly shown the presence of molybdenum (VI) and iron (III), signifying the successful formation of active species. By carefully optimizing conditions – specifically a reaction duration of 90 min, a temperature maintained at 25 °C, a catalyst loading of 5 % by weight (catalyst/glycerol), and a molar ratio of 1:4 (glycerol/acetone) – a conversion of 82 % and selectivity of 97 % for solketal were achieved. This result highlights the high efficiency and effectiveness of the proposed catalytic process. Reuse tests of the most efficient catalyst indicate satisfactory activity up to the third cycle, with a reduction in catalytic efficiency of 12 %, demonstrating high efficiency. These results demonstrate the great potential of these catalysts in sustainable industrial chemical processes, aligning with the innovative principles of green chemistry.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115302"},"PeriodicalIF":3.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Catalytic performance of sustainable bifunctional GaZn/ZSM-5 catalyst for LPG Aromatization 可持续双功能GaZn/ZSM-5催化剂对LPG芳构化的催化性能

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-03 DOI: 10.1016/j.mcat.2025.115298

Muhammad Naseem Akhtar , B. Rabindran Jermy , Nabeel Ahmad

{"title":"Catalytic performance of sustainable bifunctional GaZn/ZSM-5 catalyst for LPG Aromatization","authors":"Muhammad Naseem Akhtar , B. Rabindran Jermy , Nabeel Ahmad","doi":"10.1016/j.mcat.2025.115298","DOIUrl":"10.1016/j.mcat.2025.115298","url":null,"abstract":"<div><div>This study explores the performance of bimetal Ga-Zn impregnated on green ZSM-5 and commercial ZSM-5 to convert liquefied petroleum gas (LPG) to aromatics. Initially, the activity of Ga-impregnated GZSM-5 (2Ga/GZSM-5) was evaluated and compared with various structured catalysts, halloysite clay nanotubes (2Ga/Hall), hierarchical MCM-41 (2Ga/HierMCM-41), mesocellular aluminosilicate foam (2Ga/AlMSU-F), and zeolitic imidazolate framework-8 (2Ga/ZIF-8). The experiments were conducted using an LPG feed at a flow rate of 10 mL/min and 550 °C. Subsequently, the effect of Zn co-impregnation on 2Ga/GZSM-5, was investigated. Finally, a sustainable catalyst derived from green Ga-Zn metal nanoparticles synthesized from <em>Tribulus</em> leaves on GZSM-5 (2GGa0.5Zn/GZSM-5) was studied. The results revealed that 2Ga/GZSM-5 exhibited the highest aromatics yield of 72.64 % with a BTEX selectivity of 61.10 %. Among the bimetallic catalysts, 2Ga0.5Zn/GZSM-5 achieved the highest aromatics yield of 76.00 % with a BTEX selectivity of 44.38 %. This study highlights the potential of sustainable green metal nanoparticles combined with ZSM-5 for efficient LPG-to-aromatics conversion.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115298"},"PeriodicalIF":3.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Incorporation of Zn into Pd/TiO2 to promote the catalytic stability of low temperature transfer hydrogenation using HCOOH 在Pd/TiO2中加入Zn促进HCOOH低温转移加氢的催化稳定性

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-03 DOI: 10.1016/j.mcat.2025.115318

Zelin Hua , Xuejuan Zhao , Lili Mu , Jichao Lin , Shanshan Chen , Licheng Li

{"title":"Incorporation of Zn into Pd/TiO2 to promote the catalytic stability of low temperature transfer hydrogenation using HCOOH","authors":"Zelin Hua , Xuejuan Zhao , Lili Mu , Jichao Lin , Shanshan Chen , Licheng Li","doi":"10.1016/j.mcat.2025.115318","DOIUrl":"10.1016/j.mcat.2025.115318","url":null,"abstract":"<div><div>The limited catalytic stability of catalysts has long posed a challenge for the application of transfer hydrogenation technology, which can be performed under mild conditions. Based on the Pd/TiO<sub>2</sub> catalyst, the effect of Zn addition on the catalytic stability in low temperature transfer hydrogenation using fomic acid (HCOOH) has been investigated. The results indicate the Pd/TiO<sub>2</sub> catalyst exhibits rapid deactivation, with nearly complete loss of catalytic activity in five rounds of the reaction. In contrast, the Zn-Pd/TiO<sub>2</sub> catalyst shows almost no signs of deactivation throughout all reaction cycles. Various characterizations have ruled out the factors including Pd leaching, morphological and valence changes in Pd, and support collapse that can lead to deactivation. Spectroscopy data confirms that the primary reason for rapid deactivation of Pd/TiO<sub>2</sub> is the accumulation of formate on the catalyst surface, which hinders the contact between active sites and reactants. Conversely, the Zn-Pd/TiO<sub>2</sub> catalyst does not experience similar issues as observed with Pd/TiO<sub>2</sub>. On the Zn-Pd/TiO<sub>2</sub> catalyst, HCOOH undergoes complete decomposition into CO<sub>2</sub> and active hydrogens through a different reaction pathway (HCOOH→COOH+<em>H</em>→CO<sub>2</sub>+2H). The present work demonstrates that altering the reaction pathway is an effective strategy for enhancing the catalytic stablity of the catalyst in low temperature transfer hydrogenation.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115318"},"PeriodicalIF":3.9,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of cobalt doping on the catalytic performance of cryptomelane catalyst for CO preferential oxidation in H2-rich streams 钴掺杂对隐黑烷催化剂在富h2流中CO优先氧化性能的影响

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-02 DOI: 10.1016/j.mcat.2025.115319

Jinfang Li , Wanjun Zhao , Hui Dang , Ruifang Wu , Lingxu Kong , Liangliang Zhang , Ke Zheng , Chengming Zhang , Yongzhao Wang , Yongxiang Zhao

{"title":"Effect of cobalt doping on the catalytic performance of cryptomelane catalyst for CO preferential oxidation in H2-rich streams","authors":"Jinfang Li , Wanjun Zhao , Hui Dang , Ruifang Wu , Lingxu Kong , Liangliang Zhang , Ke Zheng , Chengming Zhang , Yongzhao Wang , Yongxiang Zhao","doi":"10.1016/j.mcat.2025.115319","DOIUrl":"10.1016/j.mcat.2025.115319","url":null,"abstract":"<div><div>A series of Co-doped cryptomelane (OMS-2) catalysts with different Co/Mn molar ratios were synthesized by a one-step redox method, and used for CO preferential oxidation in H<sub>2</sub>-rich streams. Among them, the Co<sub>0.3<img></sub>OMS-2 catalyst exhibited the best catalytic performance, the CO conversion rate of nearly 100 % at 110 °C and maintaining for at least 100 h. The characterization results indicated that the Co ions synergistically replaced the Mn and K sites, enhancing the dissociation of the Mn-O bonds through oxygen vacancy engineering, and more oxygen vacancies promoted the improvement of the redox performance of the Co<sub>0.3<img></sub>OMS-2 catalyst. By synchronously regulating the surface alkalinity, the desorption of the reaction product CO<sub>2</sub> was enhanced. This structure-performance correlation mechanism breaks through the thermodynamic limitations of traditional metal-supported OMS-2 catalysts and provides a new idea for the design of efficient CO preferential oxidation catalysts.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115319"},"PeriodicalIF":3.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Advancing photocatalytic CH activation: VO2-Ag nanocomposites for efficient cyclohexane oxidation under mild conditions 推进光催化CH活化：VO2-Ag纳米复合材料在温和条件下高效氧化环己烷

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-02 DOI: 10.1016/j.mcat.2025.115320

Xiaoyan Xiang , Jincheng Liu , Bingjie Li , Wenxin Yang , Zewei Liao , Wei Cai , Yijun Luo , Yanxiong Fang

{"title":"Advancing photocatalytic CH activation: VO2-Ag nanocomposites for efficient cyclohexane oxidation under mild conditions","authors":"Xiaoyan Xiang , Jincheng Liu , Bingjie Li , Wenxin Yang , Zewei Liao , Wei Cai , Yijun Luo , Yanxiong Fang","doi":"10.1016/j.mcat.2025.115320","DOIUrl":"10.1016/j.mcat.2025.115320","url":null,"abstract":"<div><div>The selective oxidation of inert C<img>H bonds via sustainable photocatalytic methods represents a critical advancement in green chemistry. This research develops VO<sub>2</sub>-Ag nanocomposites for the selective photocatalytic oxidation of cyclohexane to KA oil (cyclohexanol/cyclohexanone) under mild conditions, addressing the inefficiency, high energy consumption, and over-oxidation of conventional methods. Oxygen-deficient VO<sub>2</sub> nanorods were synthesized solvothermally, followed by in situ photoreduction to deposit uniformly dispersed silver nanoparticles (Ag NPs) with the diameter of 6∼8 nm onto the VO₂ nanorod surface with the length of 500∼600 nm. The VO<sub>2</sub>-Ag synergy integrates three key features: (1) VO<sub>2</sub> oxygen vacancies modulating reactant adsorption, (2) Ag NP localized surface plasmon resonance (LSPR) enhancing visible-light absorption, and (3) a Schottky heterojunction promoting charge separation. The optimized VO<sub>2</sub>-Ag<sub>40</sub> composite achieved 9.17 % cyclohexane conversion and 95.04 % KA oil selectivity under visible light in 12 h, significantly outperforming pure VO<sub>2</sub>. Mechanistic studies identified <em>h</em><sup>+</sup>, ·O<sub>2</sub><sup>−</sup>, and ·OH as key active species. Enhanced activity stems from LSPR-broadened light absorption, Schottky-minimized charge recombination, and vacancy-optimized intermediate adsorption. This work highlights the potential of interfacial engineering and defect modulation in designing high-performance photocatalysts for sustainable hydrocarbon valorization, offering a scalable strategy for green chemical synthesis.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115320"},"PeriodicalIF":3.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

QM/MM insights into catalytic activation of firefly luciferin by MgATP MgATP催化萤火虫荧光素活化的QM/MM见解

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-02 DOI: 10.1016/j.mcat.2025.115316

Anastasia R. Blinova , Tatiana Domratcheva , Bella L. Grigorenko

{"title":"QM/MM insights into catalytic activation of firefly luciferin by MgATP","authors":"Anastasia R. Blinova , Tatiana Domratcheva , Bella L. Grigorenko","doi":"10.1016/j.mcat.2025.115316","DOIUrl":"10.1016/j.mcat.2025.115316","url":null,"abstract":"<div><div>The bioluminescence reaction of the firefly luciferase (FLuc) enzyme proceeds in two steps: protein-catalyzed formation of an active substrate from ATP and luciferin and subsequent interaction of the activated substrate with molecular oxygen resulting in emission of light. Here, we model the protein-dependent formation of the deprotonated luciferyl adenylate and uncover the catalytic role of the MgATP binding to the enzyme. Guided by the established structures of the ATP/GTP-binding proteins, we identify the MgATP binding loop in FLuc and model interactions of this motif with MgATP by means of classical and hybrid QM/MM molecular dynamics. Based on the free energy simulations, we demonstrate that MgATP bound to FLuc plays a dual mechanistic role: after ATP functioning as a substrate in luciferin adenylation, it catalyzes deprotonation of the luciferyl adenylate providing interactions that enhance the strength of the general base and stabilize the deprotonated intermediate. Moreover, the pyrophosphate PP<sub>i</sub> produced in the adenylation step is a plausible final proton acceptor enabling proton release from the active site. Our findings reveal a novel role of MgATP in generating a luciferin species primed for the reaction with molecular oxygen.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115316"},"PeriodicalIF":3.9,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Simple preparation of AgVO3-modified iron phosphate nanostructures for improved photocatalytic reduction of nitrobenzene 简单制备agvo3修饰的磷酸铁纳米结构以改善光催化还原硝基苯

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-07-01 DOI: 10.1016/j.mcat.2025.115317

Maha AlHaddad , Fatehy M. Abdel-Haleem , Soliman I. El-Hout , Reda M. Mohamed

{"title":"Simple preparation of AgVO3-modified iron phosphate nanostructures for improved photocatalytic reduction of nitrobenzene","authors":"Maha AlHaddad , Fatehy M. Abdel-Haleem , Soliman I. El-Hout , Reda M. Mohamed","doi":"10.1016/j.mcat.2025.115317","DOIUrl":"10.1016/j.mcat.2025.115317","url":null,"abstract":"<div><div>Photocatalysis offers an environmentally friendly method for driving oxidation and reduction reactions. This process begins when light excites a semiconductor, generating electron-hole pairs (e⁻–h⁺) that facilitate chemical transformations. Aniline serves as a fundamental building block in chemical engineering, playing a pivotal role in the synthesis of numerous industrial products. This study reports a facile polymer-assisted sol-gel synthesis of iron phosphate (FePO<sub>4</sub>) nanocrystals, followed by the incorporation of different amounts (4–16 wt. %) of silver vandates (AgVO<sub>3</sub>) via precipitation. Comprehensive physicochemical characterization revealed the formation of mesoporous structures and highlighted the profound influence of AgVO<sub>3</sub> on the optical and electronic properties of FePO<sub>4</sub>. Notably, the addition of 12 wt. % AgVO<sub>3</sub> reduced the bandgap energy from 3.24 eV to 2.6 eV, significantly enhancing visible-light absorption. The optimized 12 wt. % AgVO<sub>3</sub>-FePO<sub>4</sub> catalyst (2.0 g/L) achieved complete conversion of nitrobenzene to industrially valuable aniline within 45 min. under visible light while exhibiting excellent recyclability. The AgVO<sub>3</sub> loading markedly improved charge carrier separation and mobility, as confirmed by photoelectrochemical analyses. This work paves the way for further exploration of phosphate-based heterostructures in the sustainable production of high-value industrial chemicals, demonstrating their potential for efficient and selective photocatalytic transformations.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115317"},"PeriodicalIF":3.9,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Silicon-mediated tailoring of HfOx/ZSM-5 interfaces for sustainable catalytic transfer hydrogenation of furfural to furfuryl alcohol 硅介导的HfOx/ZSM-5界面的可持续性催化转移加氢制糠醇

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-06-30 DOI: 10.1016/j.mcat.2025.115315

Feiyi Chen, Tianping Lv, Wenlong Jia, Huai Liu, Rui Zhang, Lincai Peng, Junhua Zhang

{"title":"Silicon-mediated tailoring of HfOx/ZSM-5 interfaces for sustainable catalytic transfer hydrogenation of furfural to furfuryl alcohol","authors":"Feiyi Chen, Tianping Lv, Wenlong Jia, Huai Liu, Rui Zhang, Lincai Peng, Junhua Zhang","doi":"10.1016/j.mcat.2025.115315","DOIUrl":"10.1016/j.mcat.2025.115315","url":null,"abstract":"<div><div>The sustainable transformation of biomass-derived platform molecules into value-added chemicals is pivotal for reducing environmental hazards and fossil resource dependence. Herein, we report a silicon-mediated interface engineering strategy to tailor the Lewis acidity of HfOx catalysts, enabling green catalytic transfer hydrogenation (CTH) of toxic furfural (FAL) to safer furfuryl alcohol (FOL). By integrating ZSM-5 molecular sieves with HfOx through a hydrothermal route, in situ dissolved silicon species were found to dynamically regulate HfOx framework condensation. This process generated hierarchical porosity with accessible acidic sites and formed Si-O-Hf interfacial bonds that induced electron-deficient Hf centers. The optimized HfOx@ZSM-5-(260) catalyst achieved >99 % FAL conversion and FOL selectivity within 1 h at 160°C, effectively suppressing hazardous resinification byproducts. Notably, the catalyst, synthesized from low-toxicity Hf and Si precursors, retained >95 % FOL selectivity over three consecutive cycles, demonstrating robust stability in waste-minimized processes. Mechanistic studies revealed a linear correlation between silicon doping levels and Lewis acid strength, establishing a universal descriptor for eco-friendly catalyst design in hydrogen transfer reactions. This work underscores the potential of interfacial electronic modulation in mitigating toxic byproducts during biomass valorization, offering a sustainable pathway aligned with green chemistry principles.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115315"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Dual functional Z-scheme ReS2/CdIn2S4 catalyst efficiently photocatalyzes H2O2 production and CO2 reduction in pure water without sacrificial agents 双功能z型ReS2/CdIn2S4催化剂在无牺牲剂的情况下，在纯水中高效光催化H2O2生成和CO2还原

IF 3.9 2区化学

Molecular Catalysis Pub Date : 2025-06-30 DOI: 10.1016/j.mcat.2025.115288

Wenhua Fu, Nan Li, Qian Dong, Gang Zhao, Shirui Zhang, Yi Wu, Kai Zhao, Jiangquan Ma

{"title":"Dual functional Z-scheme ReS2/CdIn2S4 catalyst efficiently photocatalyzes H2O2 production and CO2 reduction in pure water without sacrificial agents","authors":"Wenhua Fu, Nan Li, Qian Dong, Gang Zhao, Shirui Zhang, Yi Wu, Kai Zhao, Jiangquan Ma","doi":"10.1016/j.mcat.2025.115288","DOIUrl":"10.1016/j.mcat.2025.115288","url":null,"abstract":"<div><div>Photocatalytic production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and carbon dioxide (CO<sub>2</sub>) reduction has been the hotspots in the field of chemical industry for a long time. CdIn<sub>2</sub>S<sub>4</sub> is widely used due to its excellent thermal stability and significant absorption in the visible light region. However, the low efficiency of photogenerated charge separation hinders its practical application. In this work, Z-scheme heterojunction ReS<sub>2</sub>/CdIn<sub>2</sub>S<sub>4</sub> was successfully synthesized by hydrothermal method and applied for the first time in photocatalytic production of H<sub>2</sub>O<sub>2</sub> and CO<sub>2</sub> reduction. The experimental results show that compared with pure CdIn<sub>2</sub>S<sub>4</sub> or pure ReS<sub>2</sub>, the photocatalytic performance of ReS<sub>2</sub>/CdIn<sub>2</sub>S<sub>4</sub> is greatly improved. When the loading amount of ReS<sub>2</sub> is 12 wt. % of CdIn<sub>2</sub>S<sub>4</sub>, it exhibits the optimal photocatalytic H<sub>2</sub>O<sub>2</sub> productivity of 361.8 μmol h<sup>-1</sup> g<sup>-1</sup> and the optimal yields of CO and CH<sub>4</sub> of 89.84 and 5.03 μmol h<sup>-1</sup> g<sup>-1</sup> respectively in pure water. The Z-scheme heterojunction of ReS<sub>2</sub>/CdIn<sub>2</sub>S<sub>4</sub> was determined by XPS and the band structure. In addition, two possible reaction pathways involving O<sub>2</sub><sup>-</sup> and <sup>1</sup>O<sub>2</sub> were analyzed for the H<sub>2</sub>O<sub>2</sub> production by RS/CIS and the pathway of carbon dioxide reduction reaction can be speculated through in-situ DRIFTS.</div></div>","PeriodicalId":393,"journal":{"name":"Molecular Catalysis","volume":"584 ","pages":"Article 115288"},"PeriodicalIF":3.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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