Catalysis Science & Technology最新文献

{"title":"Activation strategies for rice husk biochar: enhancing porosity and performance as a support for Pd catalysts in hydrogenation reactions†","authors":"Lilia Longo ,&nbsp;Davide Baldassin ,&nbsp;Alessandro Di Michele ,&nbsp;Carla Bittencourt ,&nbsp;Federica Menegazzo ,&nbsp;Michela Signoretto","doi":"10.1039/d5cy00242g","DOIUrl":"10.1039/d5cy00242g","url":null,"abstract":"<div><div>Thermolytic transformation <em>via</em> pyrolysis is a sustainable approach for valorizing agricultural and organic waste, yielding biogas, bio-oil and biochar (the gas, liquid and solid fractions, respectively). Among these, biochar stands out as a promising carbon-rich material for catalytic applications due to its surface functional groups (carboxyl, hydroxyl, amino and lactone) which facilitate the anchorage of active metal phases. However, its inherently low surface area and underdeveloped porosity often limit its effectiveness as a catalyst support. To overcome this issue, this study explores the enhancement of biochar properties through activation with various agents. Biochar derived from slow pyrolysis of rice husk, an abundant agricultural waste material, was activated using both physical (steam, CO₂) and chemical agents (KOH, H₃PO₄), yielding materials denoted as ARS, ARC, ARK, and ARP, respectively. These activated biochar materials were then employed as supports for Pd nanoparticles synthesized <em>via</em> a deposition–precipitation method, and tested in benzaldehyde (BAL) hydrogenation evaluating the conversion and yield with respect to benzyl alcohol (BALOH) and toluene (TOL). The catalysts were characterized by N₂ physisorption, CHNS elemental analysis, PZC, SEM, TEM, XPS, Raman spectroscopy, and MP-AES to establish structure–activity relationships. Among the tested samples, Pd/ARK, with a surface area of 2635 m² g⁻¹ and an oxygen content of 0.15%, exhibited the highest catalytic activity (TOF = 3.22 s⁻¹). Moreover Pd/ARK achieved a toluene yield of 77% after 1 h, highlighting its superior performance. These findings demonstrate the potential of tailored biochar activation strategies to enhance catalyst performance, offering a sustainable approach for advanced catalytic applications.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5101-5115"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional PANI/Ti3C2Tx MXene nanocomposites for enhancing Na–S battery performance","authors":"Navid Aslfattahi ,&nbsp;Maryam Sadat Kiai ,&nbsp;Deniz Karatas ,&nbsp;Nilgun Baydogan ,&nbsp;Lingenthiran Samylingam ,&nbsp;Kumaran Kadirgama ,&nbsp;Chee Kuang Kok","doi":"10.1039/d5cy00564g","DOIUrl":"10.1039/d5cy00564g","url":null,"abstract":"<div><div>The application of PANI/MXene as an interlayer maintains a capacity retention rate of 94.7% after 500 cycles at a current density of 1C (C = 1675 mAh g⁻¹) in practical sodium–sulfur (Na–S) batteries. In comparison, the cell with MXene interlayer demonstrates a reversible capacity retention rate of merely 71.8% after the same number of cycles, which is lower than the cell with PANI/MXene. The cell with PANI/MXene separator exhibited capacities of 931.2 mAh g⁻¹ and 701.2 mAh g⁻¹ at a current density of 1C and 2C, respectively. When the current density was returned to 1C and 0.5C, the capacities were maintained at 728.5 mAh g⁻¹ and 917.5 mAh g⁻¹, respectively, indicating a capacity recovery rate of 98.4%.The EDX maps reveal a uniform distribution of the key elements that make up the MXene nanosheets, including Ti, C, N, and O alongside with S, which proved the agglomeration of polysulfides species on the separator surface after 500 cycles. The enhanced adsorption of polysulfide chains in PANI/MXene as an interlayer in Na–S batteries could open a new avenue as a promising separator for the next generation of high-performance Na–S batteries.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5167-5176"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of the synergistic promotion of P and CO2 on propane dehydrogenation and aromatization over the Zn/P-ZSM-5 catalyst","authors":"Huahua Fan ,&nbsp;Xiaowa Nie ,&nbsp;Chunshan Song ,&nbsp;Xinwen Guo","doi":"10.1039/d5cy00607d","DOIUrl":"10.1039/d5cy00607d","url":null,"abstract":"<div><div>This study performed DFT calculations to provide fundamental insights into the reaction mechanism of propane dehydrogenation and aromatization over Zn/P-ZSM-5 and elucidated the important roles of CO₂ and P in enhancing the reaction performance and catalyst stability. The rate-limiting steps for propane dehydrogenation and propene aromatization in the optimal energy pathways were identified, with energy barriers of 1.60 and 1.44 eV, respectively. The presence of CO₂ introduced new and more facile dehydrogenation routes, thereby lowering the barriers of the rate-limiting steps and facilitating the reaction. Besides, CO₂ could consume carbon deposits <em>via</em> the reverse Boudouard reaction, which is beneficial for extending the catalyst life. The addition of P to Zn/ZSM-5 improved the stability of active sites by strengthening their resistance towards water, enhanced the interactions between the catalyst and reactants, and induced electron transfer and charge redistribution at Zn-Lewis sites by creating new non-framework O sites, thus altering the oxidation state and acidity of the Zn-Lewis sites. The synergistic promotional effects of CO₂ and P offer a promising strategy for designing efficient zeolite-based catalysts for the dehydrogenation and aromatization of light alkanes.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5076-5089"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Co-nanoparticle/layered TiO2–TiN composite for selective photothermocatalytic reduction of CO2 to CH4†","authors":"Congyu Qin ,&nbsp;Shuchen Xing ,&nbsp;Guiming Ba ,&nbsp;Huilin Hu ,&nbsp;Jinhua Ye ,&nbsp;Defa Wang","doi":"10.1039/d5cy00653h","DOIUrl":"10.1039/d5cy00653h","url":null,"abstract":"<div><div>Photothermocatalytic carbon dioxide (CO₂) reduction into value-added chemicals is one of the promising methods for solar-to-chemical energy conversion. However, the improvement of catalytic activity and product selectivity remain a challenge in view of practical applications. Herein, we report a facile “two-step” approach – nitrogen treatment of Ti₃C₂ MXene (TC) and loading of Co nanoparticles – to synthesize a Co-nanoparticle/layered TiO₂–TiN composite as an efficient photothermocatalyst for selective reduction of CO₂ to methane (CH₄). The optimal 35Co/TiO₂–TiN catalyst exhibits a 62.8% CO₂ conversion ratio with a CH₄ evolution rate of 45.5 mmol g_cat⁻¹ h⁻¹ and 99.3% selectivity under 300 W xenon lamp irradiation for 60 min. In contrast, the Co/Ti₃C₂ catalyst shows a high selectivity toward CO production. The synergistic effect of increased light absorption capacity, reactive sites, CO₂ adsorption/activation ability, and desorption energy barrier of the CO* intermediate by the loaded Co nanoparticles and the formation of Ti–N–O bonds could account for the significantly enhanced photothermocatalytic performance of 35Co/TiO₂–TiN for selective CO₂ reduction into CH₄. Our work demonstrates that metal nanoparticle loading and formation of Ti–N–O bonds can be integrated into the strategy in developing a photothermocatalyst for efficient CO₂ reduction with controlled product selectivity.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5090-5100"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual anchoring strategy to construct low metal loading Co/BEA catalysts for propane dehydrogenation†","authors":"Yulai Lin ,&nbsp;Jun Liang ,&nbsp;Zijun Huang ,&nbsp;Jiaming Dong ,&nbsp;Yongming Luo ,&nbsp;Dedong He","doi":"10.1039/d5cy00300h","DOIUrl":"10.1039/d5cy00300h","url":null,"abstract":"<div><div>Cobalt-based catalysts have garnered significant attention in propane dehydrogenation (PDH) due to their cost-effectiveness and environmental compatibility, where the properties of Co species dictate catalytic performance. However, conventional synthesis methods fail to simultaneously achieve precise encapsulation and structural stabilization of Co sites under harsh PDH conditions. Herein, we propose an innovative dual-anchoring strategy that synergizes strong electrostatic adsorption (SEA) and secondary crystallization (SC) to engineer highly stable yet active Co centers at low metal loadings (actually 0.125 wt%). The SEA process enables directional anchoring of Co precursors within silanol nests of dealuminated BEA zeolite, while the SC treatment prevents Co aggregation. This synergistic approach yields tetrahedral Co²⁺ (T_d-Co²⁺) sites with exceptional dispersion and optimized Lewis acidity, which achieved ultra-long PDH stability of up to 110 hours and specific activity surpassing most reported catalysts.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5116-5125"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulfur-modified copper nanowire substrate with Prussian blue analogue reconstruction: a dynamic electrocatalyst for biomass-derived HMF oxidation†","authors":"Yifang Fu ,&nbsp;Yunliang Li ,&nbsp;Bolun Liu ,&nbsp;Wang Runwei ,&nbsp;Shilun Qiu ,&nbsp;Zongtao Zhang","doi":"10.1039/d5cy00261c","DOIUrl":"10.1039/d5cy00261c","url":null,"abstract":"<div><div>This study reports a non-precious electrocatalyst, CuS-NWs@PBAs (copper sulfide nanowires functionalized with Prussian blue analogues), for the efficient oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) under mild conditions. The catalyst was synthesized <em>via</em> a three-step electrodeposition process on a sulfurized copper foam substrate, where sulfurization enhanced substrate conductivity, reducing charge-transfer resistance by 90% compared to unsulfurized counterparts. <em>Operando</em> Raman and XPS spectroscopy revealed that the dynamic reconstruction of PBAs into NiOOH/Ni(OH)₂ during alkaline activation created porous architectures with optimized Ni coordination environments, significantly lowering the energy barrier for the rate-determining FFCA → FDCA step. The optimized catalyst achieved 99.8% HMF conversion and 95.2% FDCA yield at room temperature with a low overpotential (0.35 V <em>vs.</em> HgO) and Tafel slope, outperforming most reported noble-metal systems. Systematic electrochemical analysis demonstrated high faradaic efficiency (&gt;93%) and selectivity for the HMF → FDCA pathway, while control experiments validated the critical role of sulfurization and PBA reconstruction. Furthermore, the catalyst exhibited dual functionality in glycerol and urea oxidation, suggesting broader applicability. This work provides mechanistic insights into the dynamic evolution of transition metal catalysts and offers a practical strategy for designing cost-effective electrocatalysts for sustainable biomass valorization.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5126-5136"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dealloying-driven nanospherical architecture in AlYNiPdCoFe high-entropy alloy ribbons: controllable synthesis and mechanistic insights into enhanced oxygen evolution reaction","authors":"Yunjie Li ,&nbsp;Chuan Wang ,&nbsp;Keming Zhao ,&nbsp;Jing Ding ,&nbsp;Lianzhao Deng ,&nbsp;Ju Gao ,&nbsp;Lin Xiao","doi":"10.1039/d5cy00637f","DOIUrl":"10.1039/d5cy00637f","url":null,"abstract":"<div><div>High-entropy YNiPdCoFe alloy ribbons with dealloying-induced hierarchical nanosheet/nanosphere structures achieve a low overpotential (254 mV at 10 mA cm⁻²) and 80 hour stability in alkaline conditions, offering an innovative design for durable OER electrocatalysts.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 4916-4921"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of zirconia support crystal structure on the alloying of rhodium and iridium for the improvement of three-way catalysts†","authors":"Yoshihide Nishida ,&nbsp;Koki Aono ,&nbsp;Hirona Yamagishi ,&nbsp;Hiromi Togashi ,&nbsp;Shunsuke Oishi ,&nbsp;Masaaki Haneda","doi":"10.1039/d5cy00561b","DOIUrl":"10.1039/d5cy00561b","url":null,"abstract":"<div><div>Three-way catalysts reduce emissions of air pollutants from automobiles. Rhodium has been the main component of these catalysts. However, because the price of rhodium has recently increased, there is now a desire to save rhodium without sacrificing catalytic performance. Alloying rhodium with other metals is a way to reduce the need for rhodium and improve catalytic performance. However, because rhodium is generally immiscible with other metals, preparation of such catalysts is laborious. In this study, we first demonstrated the effect of the support-crystal-structure of zirconia on the alloying of rhodium and iridium. Monoclinic zirconia with a low specific surface area enabled the formation of rhodium–iridium solid-solution oxides after calcination. These oxides were transformed into metallic random alloys by hydrogen pretreatment. The light-off temperature of the alloy catalyst with approximately one-third the rhodium atoms was similar to that of the pure rhodium catalyst. <em>In situ</em> Fourier transform infrared analysis detected concerted adsorption of carbon monoxide and nitric oxide on alloyed rhodium and iridium, respectively. These adsorbed species reacted smoothly, in contrast to the non-alloyed catalyst. The successful realization of the conventional impregnation-based alloying approach opens new horizons for the design of novel bimetallic catalysts with properties tailored for advanced catalytic applications.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 4964-4970"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective oxidation of propane to acrylic acid: a critical review","authors":"Li Zhang ,&nbsp;Xinhao Meng ,&nbsp;Heting Hou ,&nbsp;Dichao Shi ,&nbsp;Sébastien Paul","doi":"10.1039/d5cy00503e","DOIUrl":"10.1039/d5cy00503e","url":null,"abstract":"<div><div>The direct oxidation of propane to acrylic acid (AA) has emerged as a promising route for AA production, leveraging the abundant availability of propane as a feedstock. Among various catalysts, mixed metal oxide (MMO) catalysts, particularly those containing vanadium (V), tellurium (Te), and niobium (Nb), have garnered extensive attention due to their exceptional capabilities for C–H bond activation and high selectivity toward AA. This review systematically summarizes recent advances in understanding the structural and phase composition of MMO catalysts, and elucidates the roles of V, Te, and Nb as active sites in propane activation, intermediate stabilization, and selective oxidation. Furthermore, strategic approaches to enhance catalytic performance are critically discussed. These include elemental doping or substitution (<em>e.g.</em>, with alkali/alkaline earth metals, rare earth elements, Mn, Bi, W, Cu, Co, Zr, Cr, and P) and the assembly of metal oxides (such as TiO₂ and SiO₂). In parallel, the optimization of reaction parameters – such as feed composition, temperature, and contact time – is analyzed to establish correlations between process conditions and catalytic efficiency. Beyond catalyst design and reaction engineering, innovative reactor configurations are explored as a means to improve overall process performance. These configurations include modifications of conventional fixed-bed reactors, as well as the exploitation of cyclic/pulse and fluidized-bed reactors.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 4898-4915"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The synergistic mechanism of free radicals between graphene oxide (GO) and hydrogen peroxide (H2O2) under visible light†","authors":"Xudong Lv ,&nbsp;Baoshan Gu ,&nbsp;Jinquan Yi ,&nbsp;Peiyan Yang ,&nbsp;Zhifeng Wang","doi":"10.1039/d5cy00599j","DOIUrl":"10.1039/d5cy00599j","url":null,"abstract":"<div><div>Graphene oxide (GO) is a promising metal-free photocatalyst for the degradation of organic pollutants. In particular, GO and H₂O₂ exhibit a synergistic effect that significantly enhances the degradation efficiency of organic pollutants. However, the mechanism of reactive oxygen species (ROS) generation and transformation in the GO and H₂O₂ system (GO/H₂O₂) has not been reported. In this study, we prepared GO with photocatalytic activity under visible light. When targeting the reactive red X-3B (X-3B) as a pollutant, the synergistic efficiency of the GO/H₂O₂ was enhanced by 85.56%. We employed electron paramagnetic resonance (EPR) and free radical probe to conduct both qualitative and quantitative analyses of ROS. The results show that ·OH, ·O₂⁻ and ¹O₂ were produced in the GO, H₂O₂, and GO/H₂O₂ systems. The synergistic effect was mainly driven by the reaction of H₂O₂ and h⁺ produced by GO under visible light. h⁺ is the engine of the synergistic effect between GO and H₂O₂. The transformation relationships among ·OH, ·O₂⁻ and ¹O₂ in the GO, H₂O₂ and GO/H₂O₂ systems were investigated. The main free radicals in the degradation process were ¹O₂ and ·O₂⁻. The influencing factors of the GO/H₂O₂ system were investigated, covering GO concentration, H₂O₂ concentration, pH value, X-3B concentration, and common water matrices. Notably, GO demonstrates excellent durability and mineralization capacity, maintaining superior photocatalytic performance even after 6 cycles. Moreover, during its application, the number of defects in GO increases, which improves the photocatalytic performance. This work clarified the underlying synergistic mechanism of ROS in GO/H₂O₂.</div></div>","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":"15 17","pages":"Pages 5137-5149"},"PeriodicalIF":4.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}