Applied Catalysis A: General最新文献_第6页

Bis(phenylsulfonyl)imide-functionalized fiber: A high-performance catalyst for the synthesis of benzimidazole and bisindole derivatives 双（苯基磺酰）亚胺功能化纤维：合成苯并咪唑和双吲哚衍生物的高性能催化剂

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-13 DOI: 10.1016/j.apcata.2025.120747

Junxiang Li , Guanyu Zhou , Chang Li , Jian Xiao , Lu Wang

{"title":"Bis(phenylsulfonyl)imide-functionalized fiber: A high-performance catalyst for the synthesis of benzimidazole and bisindole derivatives","authors":"Junxiang Li , Guanyu Zhou , Chang Li , Jian Xiao , Lu Wang","doi":"10.1016/j.apcata.2025.120747","DOIUrl":"10.1016/j.apcata.2025.120747","url":null,"abstract":"<div><div>A bis(benzenesulfonyl)imide-functionalized fiber (PAN<sub>BBI-1</sub>F) was successfully fabricated via a simple two-step chemical bonding approach and applied in acid-catalyzed organic synthesis. The physical and chemical structures of PAN<sub>BBI-1</sub>F were precisely analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), while its excellent thermal stability within the temperature range of 30–300 °C was confirmed through thermogravimetric analysis (TGA). The optimal catalytic conditions for PAN<sub>BBI-1</sub>F were investigated through cyclocondensation reactions between <em>o</em>-phenylenediamine and <em>β</em>-ketoesters. Additionally, PAN<sub>BBI-1</sub>F demonstrated versatility in the synthesis of benzimidazole and bisindole derivatives (40 examples), achieving satisfactory yields of 48–97 % for benzimidazoles and 48–93 % for bisindoles in ethanol or water as the solvent. Furthermore, PAN<sub>BBI-1</sub>F maintained catalytic activity over 5 consecutive cycles in the synthesis of benzimidazoles, with yields gradually decreasing from 97 % to 91 %. Elemental analysis (EA) further indicated that the sulfur content of PAN<sub>BBI-1</sub>F decreased only slightly from 4.40 % to 4.32 % after repeated use, confirming its excellent recyclability. Finally, a plausible heterogeneous acid catalytic mechanism was proposed based on the PAN<sub>BBI-1</sub>F-catalyzed cyclocondensation reaction as a representative example.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120747"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787031","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

Kinetics and mechanism of the ring-opening copolymerization of CO2 and propylene oxide on a two-dimensional Co-Ni double metal cyanide complex Co-Ni双金属氰化配合物上CO2与环氧丙烷开环共聚动力学与机理

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-22 DOI: 10.1016/j.apcata.2025.120758

Guillermo Penche , María P. González-Marcos , Juan R. González-Velasco , Cyler W. Vos , Christopher M. Kozak

{"title":"Kinetics and mechanism of the ring-opening copolymerization of CO2 and propylene oxide on a two-dimensional Co-Ni double metal cyanide complex","authors":"Guillermo Penche , María P. González-Marcos , Juan R. González-Velasco , Cyler W. Vos , Christopher M. Kozak","doi":"10.1016/j.apcata.2025.120758","DOIUrl":"10.1016/j.apcata.2025.120758","url":null,"abstract":"<div><div>The use of CO<sub>2</sub> as building block in organic chemistry is compelling due to its availability, cost-effectiveness, and potential to mitigate emissions while generating valuable, sustainable materials. Ring-opening copolymerization (ROCOP) of CO<sub>2</sub> and epoxides is a prime example of this. The viability of this technology, however, is highly dependent on the performance of the catalyst, and the Co-Ni DMC complex has recently demonstrated significant potential for industrial application. Thus, this article delves into the physicochemical characterization of this complex and offers a detailed examination of the kinetics and mechanism of CO<sub>2</sub>/PO ROCOP using <em>in situ</em> infrared spectroscopy. The behaviour of the catalyst is investigated under various operating conditions, including four different reaction temperatures, yielding an apparent activation energy of 59.8 kJ/mol. Zero-order kinetics with respect to CO<sub>2</sub> pressure and first-order kinetics with respect to PO concentration are observed, with minimal formation of cyclic by-products across all conditions. The influence of chloride ions and the role of chain-transfer agents on the complex are corroborated. Based on the characterization, kinetic, and mechanistic studies, an insertion-coordination copolymerization mechanism is proposed for the studied complex.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120758"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880350","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

A promising photocatalyst support based on fused quartz sands: Loading ZnSn(OH)₆ for gaseous toluene abatement 一种基于熔融石英砂的有前途的光催化剂载体：负载ZnSn（OH）₆减除气态甲苯

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-31 DOI: 10.1016/j.apcata.2025.120764

Xiang Li , Li Zhu , Biyuan Liu , Akther Umma Habiba , Junjun Wang , Xianliang Fu , Man Xu

{"title":"A promising photocatalyst support based on fused quartz sands: Loading ZnSn(OH)₆ for gaseous toluene abatement","authors":"Xiang Li , Li Zhu , Biyuan Liu , Akther Umma Habiba , Junjun Wang , Xianliang Fu , Man Xu","doi":"10.1016/j.apcata.2025.120764","DOIUrl":"10.1016/j.apcata.2025.120764","url":null,"abstract":"<div><div>Compared to the traditional thermal catalyst, the exploration of the photocatalyst carriers has not attracted much attention. This will be detrimental to the application of photocatalytic technology from the perspective of the cost and the convenience. For this consideration, ZnSn(OH)<sub>6</sub> (ZHS), which exhibits high activity for the degradation of benzene homologs, was used as a photocatalyst prototype. The loading of ZHS on a promising support, fused quartz sands (FQS), was then prepared using a hydrothermal method. The resulted samples showed higher activity for the degradation of gaseous toluene than other supports-loaded samples, including activated carbon, TiO<sub>2</sub>, and quartz sands, and even better than the self-supported pristine ZHS. For 200 ppm gaseous toluene, it can be fully degraded over 5 % ZHS/FQS sample under flow reaction mode (30 mL/min) with the residence time of only 1.8 s and the corresponding conversion and mineralization efficiencies are as high as 100 % and 82 %, respectively. The superior performance can be ascribed to the high dispersion of ZHS on FQS and the enhanced UV absorption capacity. The oxidation of toluene is triggered by ·OH and ·O₂⁻· radicals, proceeding through a sequential pathway where toluene is first converted to benzyl alcohol, then to benzaldehyde and benzoic acid, and ultimately oxidized to CO₂ and H<sub>2</sub>O. Through this strategy, the supported photocatalyst can be readily used in practical scenarios with only a small loading amount of 5 % ZHS. We believed that, besides ZHS, FQS would also be competent as a carrier for other photocatalysts.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120764"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880358","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

Nickel phosphide catalysts for reductive amination reaction of levulinic acid into 5-methyl-1-substituted-2-pyrrolidones: Effect of nickel content 乙酰丙酸还原胺化反应用磷化镍催化剂制备5-甲基-1-取代-2-吡咯烷酮

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2026-01-02 DOI: 10.1016/j.apcata.2026.120768

Claudio Araya-López , Claudio Contreras-Diaz , Juan Seguel , Adriana Blanco , Catherine Sepúlveda , Christoph Kubis , Christine Rautenberg , Stephan Bartling , Francisco Gracia , Néstor Escalona

{"title":"Nickel phosphide catalysts for reductive amination reaction of levulinic acid into 5-methyl-1-substituted-2-pyrrolidones: Effect of nickel content","authors":"Claudio Araya-López , Claudio Contreras-Diaz , Juan Seguel , Adriana Blanco , Catherine Sepúlveda , Christoph Kubis , Christine Rautenberg , Stephan Bartling , Francisco Gracia , Néstor Escalona","doi":"10.1016/j.apcata.2026.120768","DOIUrl":"10.1016/j.apcata.2026.120768","url":null,"abstract":"<div><div>In this work, Ni₂P supported on SiO₂ was investigated to evaluate the influence of particle size on the reductive amination of levulinic acid. The catalysts were prepared by incipient wetness impregnation and characterized by N₂ adsorption–desorption, H₂-TPD, XRD, CO-chemisorption, pyridine-FTIR, and XPS. Catalytic tests were carried out using aniline and 1-octylamine to produce the corresponding 5-methyl-1-substituted-2-pyrrolidones. The hydrogenation steps showed a clear volcano-type dependence on Ni₂P particle size. The catalyst containing 5 wt% Ni (8.8 nm) exhibited the highest hydrogenation turnover frequencies (TOFs) for both amines. However, the highest hydrogenation rate for the formation of 5-methyl-1-phenyl-2-pyrrolidone was obtained with the 5 wt% Ni catalyst, whereas the maximum rate for 5-methyl-1-octyl-2-pyrrolidone was achieved with the 3 wt% Ni catalyst (4.9 nm). These differences are attributed to particle-size-dependent hydrogen adsorption: smaller particles bind hydrogen too weakly, while larger particles adsorb it too strongly. Optimal catalytic performance is therefore obtained at intermediate particle sizes, where hydrogen adsorption and surface reactivity are balanced.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120768"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920724","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

Synergistic B/N coordination engineering in graphene-based single-atom catalysts for efficient ORR/ OER/HER: A DFT study 石墨烯单原子催化剂的协同B/N配位工程：高效ORR/ OER/HER的DFT研究

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-11 DOI: 10.1016/j.apcata.2025.120745

Zeyu Wang , Lili Sun , Wolong Li , Yongcun Li , Yong Wang

{"title":"Synergistic B/N coordination engineering in graphene-based single-atom catalysts for efficient ORR/ OER/HER: A DFT study","authors":"Zeyu Wang , Lili Sun , Wolong Li , Yongcun Li , Yong Wang","doi":"10.1016/j.apcata.2025.120745","DOIUrl":"10.1016/j.apcata.2025.120745","url":null,"abstract":"<div><div>The rational design and development of multifunctional catalysts remain a major challenge for next-generation energy conversion and storage devices. In this study, density functional theory (DFT) calculations were employed to investigate graphene-based single-atom catalysts. Four boron (B) atoms and two nitrogen (N) atoms were incorporated into the second coordination shell of monolayer graphene, substituting carbon atoms in the lattice. A systematic evaluation of 15 transition metals (TM=Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ir, Pt) anchored at active sites was performed to assess their structural stability and catalytic activity toward the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The results demonstrate that modulation of the local coordination environment effectively tunes the electronic structure of transition-metal centers, thereby optimizing the adsorption behavior of key intermediates. Several promising configurations were identified that simultaneously enhance ORR, OER, and HER performance, among which Co@BN/G (0.35 V/0.47 V/0.09 V) and Rh@BN/G (0.28 V/0.25 V) exhibited particularly favorable activity and stability metrics. These findings underscore the potential of B/N coordination engineering for the development of high-performance, durable electrocatalysts. This work provides fundamental theoretical insights and practical design strategies for the advancement of multifunctional catalysts in rechargeable zinc air batteries.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120745"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787029","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

Direct oxidative carbonylation of waste methane to acetic acid over Rh/zeolite catalysts 在Rh/沸石催化剂上，废甲烷直接氧化羰基化制乙酸

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-11 DOI: 10.1016/j.apcata.2025.120744

Jialin Yu , Olukayode Gideon Oloyede , Mark B.F. Berko , Kunlun Ding , Richard J. Lewis , Stuart H. Taylor , Graham J. Hutchings , Kang Li , David Chadwick

{"title":"Direct oxidative carbonylation of waste methane to acetic acid over Rh/zeolite catalysts","authors":"Jialin Yu , Olukayode Gideon Oloyede , Mark B.F. Berko , Kunlun Ding , Richard J. Lewis , Stuart H. Taylor , Graham J. Hutchings , Kang Li , David Chadwick","doi":"10.1016/j.apcata.2025.120744","DOIUrl":"10.1016/j.apcata.2025.120744","url":null,"abstract":"<div><div>Direct oxidation of methane to oxygenates remains challenging in heterogeneous catalysis. In this work, direct oxidative carbonylation of low-concentration methane to acetic acid has been investigated over Rh/zeolite catalysts. Formation of acetic acid over Rh/ZSM-5 is shown to be far superior compared to a range of other Rh/zeolite catalysts, including Rh/Z-beta, Rh/Z-Y, Rh/Mor, Rh/Fer, and Rh/SSZ-13. The importance of the 3D channel structure of ZSM-5 is emphasised by a comparison with unidirectional Rh/ZSM-23 which showed much lower production of acetic acid. Acetic acid production is found to be maximum at a SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio corresponding to ZSM5–50. Isolated Rh is identified as the active site for liquid oxygenate production with 0.09 wt% Rh/ZSM5 giving the highest acetic acid production. Higher Rh loading leads to a drop in production due to the gradual formation of Rh nanoparticles. Acetic acid production is shown to be strongly pressure dependent consistent with 2nd or higher order apparent kinetics compared to apparent 1st order for C1 products. Competing direct CO oxidation to CO<sub>2</sub> was responsible for above 85 % of the total CO<sub>2</sub> production. These findings highlight the critical role of zeolite topology in enhancing selective methane valorisation over Rh catalysts, and provide insights into developing practical catalytic processes for low-carbon chemical manufacturing.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120744"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787030","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

Rice husk derived biochar as support for Ni based catalysts in CO2 methanation: A study on biochar activation 稻壳生物炭作为Ni基催化剂在CO2甲烷化中的载体：生物炭活化研究

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-14 DOI: 10.1016/j.apcata.2025.120750

Giulia Da Pian , Rachele Braido , Ivo Alxneit , Giuseppe Cruciani , Federica Menegazzo , Michela Signoretto

{"title":"Rice husk derived biochar as support for Ni based catalysts in CO2 methanation: A study on biochar activation","authors":"Giulia Da Pian , Rachele Braido , Ivo Alxneit , Giuseppe Cruciani , Federica Menegazzo , Michela Signoretto","doi":"10.1016/j.apcata.2025.120750","DOIUrl":"10.1016/j.apcata.2025.120750","url":null,"abstract":"<div><div>Waste derived biochars are becoming fundamental carbonaceous sources to be used as support in catalysis, especially after activation to improve their features. CO<sub>2</sub> methanation is a strategic process for energy transition. However, it requires better selectivity and economic feasibility. This can be done by acting on the catalytic system. In this article, a biochar from rice husk biomass was obtained by pyrolysis and activated in two different physical ways (water vapor and CO<sub>2</sub>). The activated biochars were used to prepare CO<sub>2</sub> methanation catalysts with Ni 10 wt%. The starting biochars and final catalysts were characterized to investigate their morphological, physical and chemical features through various techniques to elucidate activation treatment effects on the ultimate catalyst performance. The best catalyst Ni/RHCO<sub>2</sub> presented good stability over 20 h of test and optimal selectivity values (>90 %), probably because of the better biochar features provided by CO<sub>2</sub> activation such as porosity, crystallinity, and stronger Ni-biochar interactions.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120750"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787034","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

Sustainable catalytic strategies for carbon–carbon and carbon–heteroatom (C–S, C–N, C–O, C–Se) bond formation: Green pathways to advanced molecules 碳碳和碳杂原子（C-S, C-N, C-O, C-Se）键形成的可持续催化策略：通往先进分子的绿色途径

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-11-25 DOI: 10.1016/j.apcata.2025.120714

Aeyaz Ahmad Bhat , Noureddine Elboughdiri , Abhinav Kumar , Ankit Dilipkumar Oza , Karim Kriaa , Chemseddine Maatki , Bilel Hadrich , Anjuman Ayub , Meraj Ahmed , Atif Khurshid Wani

{"title":"Sustainable catalytic strategies for carbon–carbon and carbon–heteroatom (C–S, C–N, C–O, C–Se) bond formation: Green pathways to advanced molecules","authors":"Aeyaz Ahmad Bhat , Noureddine Elboughdiri , Abhinav Kumar , Ankit Dilipkumar Oza , Karim Kriaa , Chemseddine Maatki , Bilel Hadrich , Anjuman Ayub , Meraj Ahmed , Atif Khurshid Wani","doi":"10.1016/j.apcata.2025.120714","DOIUrl":"10.1016/j.apcata.2025.120714","url":null,"abstract":"<div><div>An imperative cornerstone of modern organic synthesis lies in the ability to actively shape molecular frameworks through selective bond formation. Carbon–carbon (C–C) bonds provide the fundamental backbone of organic molecules, whereas carbon–heteroatom linkages, particularly C–N, C–O, and C–S bonds, impart essential structural and functional diversity that underpins chemical reactivity, bioactivity, and material properties. Over the past few decades, the evolution from classical strategies such as Wurtz coupling, Grignard addition, aldol condensation, and nucleophilic substitutions towards catalytic methodologies has transformed the synthetic landscape. Transition-metal catalysis, exemplified by Suzuki, Heck, and Negishi cross-couplings, has enabled highly efficient, selective, and mild routes for C–C and carbon–heteroatom bond construction. Parallel developments in photocatalysis and organocatalysis have expanded the synthetic toolbox by offering environmentally benign and metal-free alternatives with broad substrate tolerance. These advances have not only enhanced regio- and stereocontrol but also facilitated late-stage functionalization of complex molecules, thereby streamlining the synthesis of bioactive compounds and functional materials. Increasing emphasis on sustainability has further driven the integration of green chemistry principles, including renewable feedstocks, recyclable catalysts, and energy-efficient conditions. This review highlights recent catalytic innovations in C–C, C–N, C–O, and C–S bond formation, discusses their mechanistic foundations, and underscores their implications in medicinal chemistry, materials science, and sustainable synthesis.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120714"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682631","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

Phosphate-Induced oxygen vacancies and surface reconstruction of CoFe2O4 for industrial-grade seawater oxidation 工业级海水氧化中磷酸盐诱导的氧空位和CoFe2O4的表面重建

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-11-27 DOI: 10.1016/j.apcata.2025.120721

Xue Liu , Wenmiao Chen , Guang Li , Mingyue Xue , Zhi Li , Qiang Liu , Hongyan Zhuo , Yanli Chen

{"title":"Phosphate-Induced oxygen vacancies and surface reconstruction of CoFe2O4 for industrial-grade seawater oxidation","authors":"Xue Liu , Wenmiao Chen , Guang Li , Mingyue Xue , Zhi Li , Qiang Liu , Hongyan Zhuo , Yanli Chen","doi":"10.1016/j.apcata.2025.120721","DOIUrl":"10.1016/j.apcata.2025.120721","url":null,"abstract":"<div><div>Seawater electrolysis has emerged as a sustainable approach for energy production, but the presence of chloride ions induces severe corrosion and competitive chlorine evolution, significantly impairing oxygen evolution reaction (OER) efficiency. To address this challenge, we developed a phosphate-engineered CoFe<sub>2</sub>O<sub>4</sub>-NF-P (200) electrocatalyst with precisely controlled oxygen vacancies for efficient and stable seawater oxidation. During synthesis, PH<sub>3</sub> gas not only reduces Co/Fe cations and generates oxygen vacancies, but its residual PO<sub>x</sub> species also facilitate the in-situ formation of active MOOH-P phases. This promotion effect can be attributed to the PO<sub>x</sub>-induced localized charge imbalance on the CoFe<sub>2</sub>O<sub>4</sub> surface, which triggers protonation and creates a highly hydrated and hydroxylated environment conducive to MOOH-P transformation. Undoubtedly, the CoFe<sub>2</sub>O<sub>4</sub>-NF-P (200) electrode demonstrated outstanding OER activity, achieving a current density of 500 mA cm⁻² at a low overpotential of 350 mV (1.580 V) in seawater. Density functional theory (DFT) calculations demonstrate that the formation of MOOH-P following surface reconstruction under phosphidation effectively reduces the bandgap, optimizes the adsorption energy of *O intermediates, and consequently significantly lowers the kinetic barrier of the OER. This work establishes oxygen vacancy engineering as an effective strategy for designing robust seawater oxidation electrocatalysts.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120721"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617377","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

Study on the effects of Nd-doping on the performance of Cu-based CO2 hydrogenation catalysts with different oxide supports nd掺杂对不同氧化物载体cu基CO2加氢催化剂性能影响的研究

IF 4.8 2区化学

Applied Catalysis A: General Pub Date : 2026-02-05 Epub Date: 2025-12-22 DOI: 10.1016/j.apcata.2025.120757

Shuai Hu , Xiaoxuan Zhu , Yan Zhu , Chenliang Zhou , Gewen Yu , Yanming Wang , Cong Wang , Zhenfeng Wang , Jian Ding , Yuqing Wang , Xiaohui Guo

{"title":"Study on the effects of Nd-doping on the performance of Cu-based CO2 hydrogenation catalysts with different oxide supports","authors":"Shuai Hu , Xiaoxuan Zhu , Yan Zhu , Chenliang Zhou , Gewen Yu , Yanming Wang , Cong Wang , Zhenfeng Wang , Jian Ding , Yuqing Wang , Xiaohui Guo","doi":"10.1016/j.apcata.2025.120757","DOIUrl":"10.1016/j.apcata.2025.120757","url":null,"abstract":"<div><div>To enhance the activity and selectivity of Cu-based catalysts in the CO<sub>2</sub> hydrogenation reaction, this study systematically investigated the regulation effect of Nd-doping on the structure and surface properties of different oxide support (MgO, Al<sub>2</sub>O<sub>3</sub>, ZrO<sub>2</sub>, and CeO<sub>2</sub>), and further explored its influence on the state of Cu species as well as the catalytic performance in CO<sub>2</sub> hydrogenation to methanol. The results show that the introduction of Nd<sup>3 +</sup> can effectively induce lattice distortion of the support which promotes the generation of oxygen vacancies and the formation of surface basic sites, thereby enhancing the interfacial electronic interaction between Cu and support and improving the stability of Cu<sup>+</sup> active centers. Among them, the Cu catalyst supported on Nd-doped ZrO<sub>2</sub> exhibited the best catalytic performance such as the high CO<sub>2</sub> conversion and selectivity to methanol. Various characterization (XRD, SEM, in-situ XPS, H<sub>2</sub>-TPR, CO<sub>2</sub>-TPD, and H<sub>2</sub>-TPD) results confirmed the key role of Nd-doping in regulating the oxygen defects, electronic structure, and Cu species distribution over support. This study reveals the structural regulation mechanism of Nd in constructing efficient Cu-based catalysts for CO<sub>2</sub> hydrogenation from the perspective of support engineering, providing theoretical basis and practical guidance for the design of new high-performance catalytic materials.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"711 ","pages":"Article 120757"},"PeriodicalIF":4.8,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836535","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}

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