燃料化学学报最新文献

{"title":"Mott-Schottky electrocatalysts for water splitting","authors":"PAN Jing ,&nbsp;FU Danfei ,&nbsp;YANG Hao ,&nbsp;LUO Bifu ,&nbsp;YANG Zhongjie","doi":"10.1016/S1872-5813(25)60595-0","DOIUrl":"10.1016/S1872-5813(25)60595-0","url":null,"abstract":"<div><div>The electron configuration of the active sites can be effectively modulated by regulating the inherent nanostructure of the electrocatalysts, thereby enhancing their electrocatalytic performance. To tackle the unexplored challenge of substantial electrochemical overpotential, surface reconstruction has emerged as a necessary strategy. Focusing on key aspects such as Janus structures, overflow effects, the <em>d</em>-band center displacement hypothesis, and interface coupling related to electrochemical reactions is essential for water electrolysis. Emerging as frontrunners among next-generation electrocatalysts, Mott-Schottky (M-S) catalysts feature a heterojunction formed between a metal and a semiconductor, offering customizable and predictable interfacial synergy. This review offers an in-depth examination of the processes driving the hydrogen and oxygen evolution reactions (HER and OER), highlighting the benefits of employing nanoscale transition metal nitrides, carbides, oxides, and phosphides in M-S heterointerface catalysts. Furthermore, the challenges, limitations, and future prospects of employing M-S heterostructured catalysts for water splitting are thoroughly discussed.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 9","pages":"Pages 1300-1319"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-performance electrocatalytic nitrogen oxidation of two-dimensional MOF based on a rod-manganese motifs","authors":"YAO Xiaoyan ,&nbsp;LI Quan ,&nbsp;ZHAO Xiangyu,&nbsp;WU Mingrui,&nbsp;LIU Licheng,&nbsp;WANG Wentai,&nbsp;YAO Shuo","doi":"10.1016/S1872-5813(25)60556-1","DOIUrl":"10.1016/S1872-5813(25)60556-1","url":null,"abstract":"<div><div>The electrocatalytic nitrogen oxidation reaction (NOR) is a sustainable approach for converting N₂ to NO^-₃ under mild conditions. However, it still faces challenges including inefficient N₂ absorption/activation and oxygen evolution competition, sluggish kinetics, low Faradaic efficiency, and limited nitrate yields. In this work, a novel two-dimensional (2D) layered MOF Mn-BCPPy (H₂BCPPy=3,5-di(4’-carboxyphenyl) pyridine) has been successfully synthesized. The framework is composed of a rod-manganese motifs and possesses abundant active sites including open metal sites (OMSs) and Lewis base sites (LBSs). The Mn-BCPPy is the first MOF catalyst applied in electrocatalytic NOR which exhibited relatively high activity with a NO^-₃ yield of 99.75 μg/(h·mg) and a Faraday efficiency (FE) of 32.09%. Furthermore, it can be used as fluorescent sensor for selectively and sensitively detect nitrofuran antibiotics (NFs). Therefore, this work explores the application of MOF materials in the field of electrocatalytic NOR, which reveals that manganese-based MOFs have great potential prospects.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 9","pages":"Pages 1364-1372"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145108400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High temperature shock synthesis of Ni-N-C single-atom catalysts for efficient CO2 electroreduction to CO","authors":"Peiqi PANG ,&nbsp;Changjian XU ,&nbsp;Ruizhu LI ,&nbsp;Na GAO ,&nbsp;Xianlong DU ,&nbsp;Tao LI ,&nbsp;Jianqiang WANG ,&nbsp;Guoping XIAO","doi":"10.1016/S1872-5813(25)60549-4","DOIUrl":"10.1016/S1872-5813(25)60549-4","url":null,"abstract":"<div><div>Electrocatalytic reduction of carbon dioxide (CO₂) to carbon monoxide (CO) is an effective strategy to achieve carbon neutrality. High selective and low-cost catalysts for the electrocatalytic reduction of CO₂ have received increasing attention. In contrast to the conventional tube furnace method, the high-temperature shock (HTS) method enables ultra-fast thermal processing, superior atomic efficiency, and a streamlined synthesis protocol, offering a simplified method for the preparation of high-performance single-atom catalysts (SACs). The reports have shown that nickel-based SACs can be synthesized quickly and conveniently using the HTS method, making their application in CO₂ reduction reactions (CO₂RR) a viable and promising avenue for further exploration. In this study, the effect of heating temperature, metal loading and different nitrogen (N) sources on the catalyst morphology, coordination environment and electrocatalytic performance were investigated. Under optimal conditions, 0.05Ni-DCD-C-1050 showed excellent performance in reducing CO₂ to CO, with CO selectivity close to 100% (−0.7 to −1.0 V <em>vs</em>RHE) and current density as high as 130 mA/cm² (−1.1 V <em>vs</em>RHE) in a flow cell under alkaline environment.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1162-1172"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of the structure and surface properties of CeZnxO2 on its catalytic performance in the synthesis of dimethyl carbonate from CO2 and methanol","authors":"Jingbo HUA,&nbsp;Jiajun PENG,&nbsp;Kehao LIU,&nbsp;Xiaoling XU,&nbsp;Qingmei TIAN,&nbsp;Yanshen LIU","doi":"10.1016/S1872-5813(25)60562-7","DOIUrl":"10.1016/S1872-5813(25)60562-7","url":null,"abstract":"<div><div>A series of CeZn_<em>x</em>O₂ catalysts with different Zn doping contents were prepared by a reflux method and used in the direct synthesis of dimethyl carbonate (DMC) from CO₂ and methanol; various characterization techniques were employed to investigate the influence of the structure and surface properties on the catalytic performance of CeZn_<em>x</em>O₂ in the DMC synthesis. The results demonstrate that Zn²⁺ is incorporated into the CeO₂ lattice, forming a solid solution. The Zn/Ce molar ratio can significantly modulate the Ce³⁺/Ce⁴⁺ redox equilibrium in CeZn_<em>x</em>O₂; with an increase of the Zn doping content, the oxygen vacancy concentration initially rises and then declines. A moderate Zn doping level (Zn/Ce = 0.5) can promote the redox process of 2Ce⁴⁺ + Zn⁰ = 2Ce³⁺ + Zn²⁺, resulting in the highest Ce³⁺ proportion and a substantial increase of the oxygen vacancy concentration. In contrast, excessive Zn doping (Zn/Ce ≥ 0.75) leads to a reduction in both the Ce³⁺ content and oxygen vacancy concentration. There is a strong positive correlation between the catalytic activity and the number of weak base sites, as well as a linear relationship with the surface oxygen vacancy concentration. In particular, CeZn_0.5O₂ with a Zn/Ce molar ratio of 0.5 exhibits the best catalytic performance in the DMC synthesis, owing to its high oxygen vacancy concentration and well-balanced distribution of basic sites.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1243-1254"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning oxygen vacancy via transition metal doping for efficient oxygen evolution reaction","authors":"Linyao HUANG ,&nbsp;Mi LUO ,&nbsp;Tianhua YANG ,&nbsp;Chenguang WANG","doi":"10.1016/S1872-5813(25)60543-3","DOIUrl":"10.1016/S1872-5813(25)60543-3","url":null,"abstract":"<div><div>In this paper, a series of Cr-doped RuO₂@NC catalysts (Cr_0.1-RuO₂@NC, Cr_0.2-RuO₂@NC, Cr_0.4-RuO₂@NC) with controlled Cr doping (0.5%, 1%, 3%) were prepared to investigate the mechanistic interplay between transition metal doping, oxygen vacancy (O_V) formation and oxygen evolution reaction (OER) performance. Systematic characterization results reveal that the oxygen vacancy concentration follows a volcano-type trend with increasing Cr content, peaking at 1% Cr doping (Cr_0.2-RuO₂@NC). Combined X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses confirm that Cr doping effectively induces electronic structure reconstruction of RuO₂, generating high-density oxygen vacancies that serve as electrochemically active sites. The optimized Cr_0.2-RuO₂@NC catalyst exhibits exceptional OER performance, achieving a low overpotential of 223 mV at 10 mA/cm² and a Tafel slope of 63.8 mV/dec, significantly surpassing its 0.5% and 3% doped counterparts. Remarkably, it retains 99.9% of the initial activity after 27 h. Cr doping not only regulates the concentration of oxygen vacancies through lattice distortion. The strong Cr–O covalent bonding enhances the structural stability of the catalyst. This work establishes a general transition metal doping strategy for precise oxygen vacancy engineering, providing new design principles and theoretical foundations for developing high-performance OER electrocatalysts.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1173-1182"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the regulation of Fischer-Tropsch synthesis catalytic performance by mixing oxides with iron-based catalysts","authors":"Yan CHEN,&nbsp;Huanhuan HE,&nbsp;Yufeng LI,&nbsp;Bing LIU,&nbsp;Xiaohao LIU","doi":"10.1016/S1872-5813(25)60534-2","DOIUrl":"10.1016/S1872-5813(25)60534-2","url":null,"abstract":"<div><div>In Fischer-Tropsch synthesis (FTS), iron-based catalysts are prone to deactivation due to carbon deposition. To address this challenge, we developed a simple physical powder-mixing strategy by mechanically mixing iron-based FTS catalysts with oxides such as SiO₂, MgO, ZnO, ZrO₂, MnO₂, Al₂O₃, and graphene oxide (GO). Experimental results demonstrate that oxide incorporation significantly suppresses carbon deposition in a composition-dependent manner, thereby enhancing catalytic stability. Notably, after mixing with SiO₂ or MgO powder, the CO conversion reached 96.6% and 97.6%, respectively, maintaining stability for more than 20 h. In contrast, catalyst mixed with quartz sand particles underwent rapid deactivation within 20, with a decrease in CO conversion from 93.0% to 14.6%, accompanied by a sharp rise in CH₄ selectivity. By combining various characterization methods such as XRD, Mossbauer spectroscopy, TGA, XPS and CO-TPD, the promoting mechanism of oxides on reaction stability was deeply studied. The results indicate that the catalyst mixed SiO₂ powder reduced the content of active χ-Fe₅C₂ phases from 97% to 52.1% and effectively suppressed carbon deposition. This enhancement is attributed to the strong interfacial interactions between SiO₂ and the iron-based catalyst, which moderately inhibited CO adsorption and dissociation kinetics, decelerated carbonization, and prevented rapid accumulation of carbon species on the catalyst surface. Similar mechanisms were observed over MgO additives, further validating the role of oxide-iron interactions. This work elucidates the mechanism of the interaction between iron-based catalysts and mixed oxides on carbon deposition behavior in Fischer-Tropsch synthesis reactions, providing an innovative strategy and theoretical foundation for designing highly active and stable catalysts.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1212-1222"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalytic oxidation of toluene to benzaldehyde over exposed hydroxyl ZnTi-LDH nanosheets with O2/CO2","authors":"Hongyi CHEN,&nbsp;Anning ZHOU,&nbsp;Fuxin CHEN,&nbsp;Xinyu JIA,&nbsp;Yagang ZHANG,&nbsp;Mengdan MA,&nbsp;Jie LING,&nbsp;Wenlong LI","doi":"10.1016/S1872-5813(25)60542-1","DOIUrl":"10.1016/S1872-5813(25)60542-1","url":null,"abstract":"<div><div>To address the issues of low yield and selectivity of benzaldehyde in the photocatalytic CO₂-toluene reactions, a ZnTi-LDH photocatalyst with exposed hydroxyl groups was developed and a novel co-photocatalytic reaction system involving O₂/CO₂-toluene was established. The structure of ZnTi-LDH catalyst was characterized using XRD, FT-IR, N₂ adsorption-desorption isotherms, XPS and other techniques. The effects of catalyst composition and O₂/CO₂ ratio on the yield and selectivity of benzaldehyde in the O₂/CO₂ co-photocatalytic oxidation of toluene were investigated in a pressurized reactor. The techniques and instruments such as isotope tracing, radical quenching, GC-MS, EPR, and others were employed to elucidate the free radical mechanism underlying the O₂/CO₂ synergistic photocatalytic oxidation of toluene. The results indicate that under solvent-free conditions, with a ZnTi-LDH catalyst composition of 3:1 (ZT-3:1) and an O₂/CO₂ ratio of 2:8, the irradiation by xenon light for 12 h yielded CO and benzaldehyde at rates of 121.37 and 947.89 μmol/(g·h), respectively, with selectivities of 96% and 60%. The total yield was 3.02 times higher than that of the CO₂-toluene reaction alone. Selectivities for CO and benzaldehyde increased by 7% and 11%, respectively. These improvements are attributed primarily to the abundant −OH groups and high specific surface area of ZT-3:1, which promote the activation of CO₂ adsorption on the catalyst, and the synergistic effect of O₂ and CO₂ expands the pathways for free radical reactions and improves the carrier utilization efficiency. This study provides a new approach to enhancing the CO₂ conversion efficiency and co-producing the high-value-added products.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1148-1161"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Cu grain size on the performance of Cu-based catalyst in the gas-phase hydrogenation of ethyl levulinate","authors":"Hongxing WANG ,&nbsp;Lifeng CUI ,&nbsp;Jie ZHANG ,&nbsp;Shuhao WU ,&nbsp;Shuai ZHANG ,&nbsp;Ye TIAN ,&nbsp;Xingang LI","doi":"10.1016/S1872-5813(25)60541-X","DOIUrl":"10.1016/S1872-5813(25)60541-X","url":null,"abstract":"<div><div>γ-valerolactone (GVL) is a platform chemical derived from lignocellulose, which can be used as fuel additives, green solvent and feeding for the production of other high-value chemicals. Its efficient synthesis is of great significance for the development and utilization of biomass downstream products. Herein, with CuZnAl hydrotalcite as the precursor, a series of Cu-based catalysts with different Cu grain sizes were prepared by changing the aging temperature and used in the solvent-free gas-phase hydrogenation of ethyl levulinate (EL) to produce GVL. The Cu-based catalysts were systematically characterized by various techniques such as N₂ sorption, XRD, SEM, TEM, H₂-TPR, NH₃-TPD, and <em>in situ</em> XPS, while the effect of Cu grain size on the performance of Cu-based catalyst in the EL hydrogenation was investigated. The results indicate that the electron cloud density of Cu as well as the Cu⁰/(Cu⁰+Cu⁺) ratio increase with a decrease of the Cu grain size; in addition, the Cu-based catalyst prepared by aging at a low temperature displays a large surface area and abundant acid sites. The synergistic effect of Cu⁰ sites and acid sites endows the Cu-based catalyst with superior performance in the EL hydrogenation to GVL. In particular, for the EL gas-phase hydrogenation under mild conditions (atmospheric pressure, 140 ℃, 0.3 h⁻¹), the Cu-based catalyst prepared by aging at 30 ℃ achieves an EL conversion of 99.9% and a selectivity of 99.5% to GVL, with no significant deactivation observed in 240 h. The insight shown in this work should be meaningful for the large-scale production of GVL.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1223-1232"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing graphite-CeO2 interfaces to enhance the photothermal activity for solar-driven dry reforming of methane","authors":"Ruitao LI ,&nbsp;Kun GONG ,&nbsp;Yuanyuan DAI ,&nbsp;Qiang NIU ,&nbsp;Tiejun LIN ,&nbsp;Liangshu ZHONG","doi":"10.1016/S1872-5813(24)60531-1","DOIUrl":"10.1016/S1872-5813(24)60531-1","url":null,"abstract":"<div><div>CeO₂ based semiconductor are widely used in solar-driven photothermal catalytic dry reforming of methane (DRM) reaction, but still suffer from low activity and low light utilization efficiency. This study developed graphite-CeO₂ interfaces to enhance solar-driven photothermal catalytic DRM. Compared with carbon nanotubes-modified CeO₂ (CeO₂-CNT), graphite-modified CeO₂ (CeO₂-GRA) constructed graphite-CeO₂ interfaces with distortion in CeO₂, leading to the formation abundant oxygen vacancies. These graphite-CeO₂ interfaces with oxygen vacancies enhanced optical absorption and promoted the generation and separation of photogenerated carriers. The high endothermic capacity of graphite elevated the catalyst surface temperature from 592.1−691.3 ℃, boosting light-to-thermal conversion. The synergy between photogenerated carriers and localized heat enabled Ni/CeO₂-GRA to achieve a CO production rate of 9985.6 mmol/(g·h) (<em>vs</em>7192.4 mmol/(g·h) for Ni/ CeO₂) and a light-to-fuel efficiency of 21.8% (<em>vs</em>13.8% for Ni/ CeO₂). This work provides insights for designing graphite-semiconductor interfaces to advance photothermal catalytic efficiency.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1137-1147"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulating the Fe/Mo ratio of FeMoOx/LaTiOy to boost aerobic oxidative desulfurization of diesel","authors":"Fengren ZHANG ,&nbsp;Ying YAN ,&nbsp;Feng LIU ,&nbsp;Yang WU ,&nbsp;Shuqin LIANG ,&nbsp;Huifang CHENG ,&nbsp;Shanlei HAN ,&nbsp;LIU Jixing ,&nbsp;Wenshuai ZHU","doi":"10.1016/S1872-5813(25)60576-7","DOIUrl":"10.1016/S1872-5813(25)60576-7","url":null,"abstract":"<div><div>Catalytic oxidation desulfurization (CODS) technology has shown great promise for diesel desulfurization by virtue of its low cost, mild reaction conditions, and superior desulfurization performance. Herein, a series of FeMoO_<em>x</em>/LaTiO_<em>y</em>-<em>z</em> samples with diverse Fe/Mo ratios were prepared via a facile citric acid-assisted method. The impact of Fe incorporation on the dispersion and surface elemental states of Mo species, as well as oxygen species content of the synthesized FeMoO_<em>x</em>/LaTiO_<em>y</em>-<em>z</em> catalysts were systematically characterized using TEM, BET, UV-vis DRS, XPS, XANES, and reaction kinetics, and their CODS performances were examined for 4,6-DMDBT removal. Experimental results demonstrated that Fe/Mo ratio significantly affected the Ti−O bond strength, surface dispersion and electronic structure of Mo species on FeMoO_<em>x</em>/LaTiO_<em>y</em>-<em>z</em> catalysts. FeMoO_<em>x</em>/LaTiO_<em>y</em>-2 catalyst showed outstanding cycling durability and the best CODS performance with almost 100% removal of 4,6-DMDBT from model oil within 75 min due to its proper MoO₃ dispersion, optimal redox property, and the most oxygen vacancy concentration. Nevertheless, further enhancing Fe content led to the increased dispersion of Mo species, while the decrease active Mo species as well as the increase of steric effect for 4,6-DMDBT accessing to the catalytic reactive sites considerably increase the apparent activation energy of FeMoO_<em>x</em>/LaTiO_<em>y</em>-<em>z</em> (<em>z</em>&gt; 2) catalysts during the CODS process, thereby seriously suppressing their CODS performances. Moreover, Radical trapping experiments reveal that the ·, generated by the activation of O₂ at the active sites, catalytic oxidized 4,6-DMDBT to the product of 4,6-DMDBTO₂, thereby enabling both deep desulfurization and recovery of high-value 4,6-DMDBTO₂. These findings offer an alternative strategy to achieve ultra deep desulfurization as well as separate and recover high economic value sulfone substances from diesel.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 8","pages":"Pages 1255-1268"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}