燃料化学学报最新文献

{"title":"Reaction mechanisms and cracking performance of CH4 provoked by non-equilibrium plasma","authors":"Yiping SUN,&nbsp;Junning ZHAO,&nbsp;Yuanyuan ZHANG,&nbsp;Kai ZHANG,&nbsp;Dongke ZHANG","doi":"10.1016/S1872-5813(26)60690-1","DOIUrl":"10.1016/S1872-5813(26)60690-1","url":null,"abstract":"<div><div>Methane cracking driven by electric power holds significant promise in the context of the rapid development of renewable energy. The effects of carrier gas ratio, input power, and inlet gas flow rate on CH₄ cracking performance were systematically investigated in a dielectric barrier discharge (DBD) reactor. The variation of temperature distribution and reaction energy intensity were also examined. The experimental results indicate that CH₄ conversion and gaseous product formation are promoted by increasing the DBD input power or decreasing the inlet gas flow rate. At an input power of 90 W and an inlet gas flow rate of 200 mL/min, the single-pass CH₄ conversion reach 46.6%, with an H₂ yield of 23.3%, demonstrating that CH₄ cracking is governed by electron induced. While the Joule heating from the inner and outer electrodes is relatively limited. The reaction energy intensity increases as the CH₄ conversion decreases. When the inlet gas flow rate increases from 200 to 800 mL/min, the energy intensity rises by approximately 2.8 times, indicating that higher inlet gas flow rates enhance the convective heat transfer and shorten the gas residence time, thereby suppressing deep CH₄ cracking. Moreover, BOLSIG+ calculations further reveal that CH₄ activation is dominated by electron induced vibrational excitation, in which stepwise energy accumulation drives C–H bond dissociation. The energy transfer and species transformation pathways of overall CH₄ cracking process, which comprises electron energy injection, vibrational excitation, stepwise dissociation, radical chain extension, and final product formation, can be summarized into three stages, i.e. methane activation, radical evolution, and product formation. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (261KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250384"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746699","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":"Crystal facet effect of WO3 in heterogeneous catalysis","authors":"Miao ZHANG,&nbsp;Huixiang WANG,&nbsp;Huipeng LI,&nbsp;Deshun ZHANG,&nbsp;Jingwen XU,&nbsp;Duojia REN,&nbsp;Wei ZHANG,&nbsp;Shoufeng XUE,&nbsp;Baoliang LÜ","doi":"10.1016/S1872-5813(26)60684-6","DOIUrl":"10.1016/S1872-5813(26)60684-6","url":null,"abstract":"<div><div>As an important transition metal oxide, tungsten trioxide (WO₃) has become one of the most attractive materials in the current field of heterogeneous catalysis due to its comprehensive merits in environmental friendliness, cost-effectiveness and electrical properties. Different crystal facets of WO₃ exhibit significant differences in key catalytic physicochemical properties such as charge separation efficiency, reactant adsorption capacity, and redox activity, which stems from the inherent differences in their atomic arrangement, electronic structure, and surface energy. Relevant studies have confirmed that, influenced by the distinct facet effect, the catalytic performance of WO₃ strongly depends on the exposed facet states determined by its geometric morphology. This finding provides an important direction for mechanism research of modern heterogeneous catalysis. This paper reviews the facet effect of WO₃ as a heterogeneous catalyst in various application fields in recent years, including photocatalysis, electrocatalysis, photoelectrocatalysis, and thermal catalysis process. Meanwhile, combined with theoretical calculations, it explains the intrinsic mechanism underlying the facet effect from the perspective of the atomic structure essence of WO₃ crystal facets. Finally, the paper summarizes the general rules of the WO₃ facet effect across the aforementioned application scenarios, deeply discusses the shortcomings in the current research on the facet effect of WO₃, and prospects the future development direction of this field. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (228KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250325"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746294","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":"Control strategy for mercury emissions from coal-fired flue gas in China","authors":"Rihong XIAO,&nbsp;Changxin LUO,&nbsp;Yuzi WU,&nbsp;Chengrui TANG,&nbsp;Zhuo XIONG,&nbsp;Junying ZHANG,&nbsp;Yongchun ZHAO","doi":"10.1016/S1872-5813(26)60708-6","DOIUrl":"10.1016/S1872-5813(26)60708-6","url":null,"abstract":"<div><div>Mercury in the emission from coal combustion is highly toxic, volatile and bioaccumulative, posing a long-term threat to the ecosystems and human health. In this paper, the current status and control policies of mercury emissions from coal combustion in China were systematically reviewed, and the distribution characteristics and transformation mechanisms of mercury during coal combustion were analyzed, with a focus on the mechanisms and performance of collaborative mercury removal in the pollution control devices after ultra-low emission retrofitting. Furthermore, a progressive strategy of “synergistic enhancement-deep purification-resource recycling” for mercury emission reduction was proposed, including three tiers: optimizing the operational parameters of pollution control systems to improve the synergistic mercury removal efficiency of various control devices; developing an efficient mercury adsorption and catalytic oxidation technology for coal-fired flue gas, with a focus on the industrially applicable mercury removal technologies; developing an integrated mercury removal and recovery technology for coal-fired power plants (e.g., magnetospheres mercury removal and mercury recovery technologies), focusing on the high-value utilization of mercury. Finally, combining the latest international compliance requirements and domestic environmental tax policies, the future research directions on the emission control of mercury in coal-fired flue gas in China were outlined, providing theoretical and technical support for the China’s international commitments and near-zero emissions of coal combustion pollutants. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (311KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20260017"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746296","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 mechanism of low-temperature CO2 methanation catalyzed by LaNiO3/CeO2","authors":"Ji LIU,&nbsp;Xuguang ZHANG,&nbsp;Mengfan LIU,&nbsp;Zhi ZHOU,&nbsp;Wentao LI,&nbsp;Bin HU,&nbsp;Zhenxi ZHANG,&nbsp;Qiang LU","doi":"10.1016/S1872-5813(26)60662-7","DOIUrl":"10.1016/S1872-5813(26)60662-7","url":null,"abstract":"<div><div>Perovskite-type catalysts have exhibited significant potential for CO₂ methanation. However, their efficacy at low temperatures and the underlying catalytic mechanisms remain inadequately understood. In this study, a perovskite catalyst LaNiO₃/CeO₂ was successfully constructed <em>via</em> the sol-gel method combined with an impregnation process. By comparing the physicochemical properties and catalytic activity of LaNiO₃, LaCeNiO₄, Ni/CeO₂ and La-Ni/CeO₂ catalysts, the underlying mechanism for the low-temperature CO₂ methanation catalyzed by LaNiO₃/CeO₂ was elucidated. During reduction, the LaNiO₃ perovskite structure <em>in situ</em> decomposed to generate highly dispersed and small-sized Ni⁰ particles with an average diameter of 12.6 nm. The CeO₂ support provided abundant oxygen vacancies (Ce³⁺/(Ce³⁺+Ce⁴⁺) ratio of 9.2%) as well as weak and moderate basic sites, synergistically promoting CO₂ adsorption and activation. The interaction between the active phase and the CeO₂ support further stabilized the dispersion of Ni⁰ and optimized the surface basicity and oxygen vacancy concentration. Under catalytic conditions at 200−300 °C, LaNiO₃/CeO₂ exhibited nearly 100% selectivity toward CH₄, while CO₂ conversion increased monotonically to 23.6%. This study clarified the crucial role of the perovskite pre-structuration and <em>in situ</em> reduction strategy in regulating the dispersion of active metals and the catalyst structure, laying a theoretical foundation for the design of catalysts for low-temperature CO₂ methanation. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (90KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250320"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746696","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":"Catalytic conversion of CO2-rich syngas to high-quality gasoline hydrocarbons over In2O3-ZrO2/SAPO-11 catalysts","authors":"Tingting ZHOU,&nbsp;Xueli LI,&nbsp;Gang ZHANG,&nbsp;Jingang YAO,&nbsp;Weiming YI","doi":"10.1016/S1872-5813(26)60671-8","DOIUrl":"10.1016/S1872-5813(26)60671-8","url":null,"abstract":"<div><div>The conversion of CO₂ into gasoline-range hydrocarbons represents a sustainable pathway to achieve deep decarbonization in the transportation sector. Nevertheless, the traditional Fischer-Tropsch synthesis (FTS) suffers from a broad product distribution, which restricts the achievable selectivity toward C₅−C₁₁ gasoline-range hydrocarbons to roughly 45%. This study presents the development of a bifunctional catalyst that integrates In₂O₃/ZrO₂ metal oxides with SAPO-11 molecular sieves, aiming at efficiently converting CO₂/CO mixtures into C₅−C₁₁ gasoline hydrocarbons. Catalysts with varying In/Zr ratios were prepared <em>via</em> co-precipitation. By employing a CO_<em>x</em> (CO/CO₂) co-feeding strategy (CO/CO_<em>x</em> = 0.5), the formation of by-product CO was significantly suppressed, thereby enabling the selectivity for gasoline hydrocarbons to exceed the maximum predicted by the Anderson-Schulz-Flory (ASF) model. Notably, under identical reaction conditions, the In₂Zr₁O_<em>x</em>/SAPO-11 catalyst exhibited higher performance compared with In₂O₃/SAPO-11 and ZrO₂/SAPO-11. The CO_<em>x</em> conversion was elevated by 1.7% and 0.2%, while the selectivity toward C₅–C₁₁ hydrocarbons was enhanced by 8.0% and 16.0%, respectively. Furthermore, the In₂Zr₁O_<em>x</em>/SAPO-11 catalyst delivered a single-pass performance of 24% CO_<em>x</em> conversion and 68% selectivity for C₅−C₁₁ hydrocarbons at 380 °C, 3 MPa and a gas hourly space velocity (GHSV) of 2400 mL/(min·g). Within this product distribution, isoparaffins accounted for 32.6% of the total components, corresponding to an isoparaffin/neoparaffin ratio of 12.3. After 150 h of stability testing, the catalyst maintained a single-pass CO_<em>x</em> conversion of 23% and a C₅−C₁₁ selectivity of ~65%, demonstrating excellent catalytic activity and promising potential for industrial application. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (214KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250279"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746697","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":"Enhancement of ZnO-ZrO2 solid solution catalyst via Cu addition for CO2 hydrogenation to methanol","authors":"Ying LI,&nbsp;Guiming XIE,&nbsp;Xinyue MENG,&nbsp;Bo PENG,&nbsp;Zhoujun WANG","doi":"10.1016/S1872-5813(26)60667-6","DOIUrl":"10.1016/S1872-5813(26)60667-6","url":null,"abstract":"<div><div>The introduction of an appropriate amount of Cu effectively enhances the catalytic performance of ZnO-ZrO₂ solid solution catalysts in CO₂ hydrogenation to methanol. However, systematic studies on the effect of Cu content in ZnO-ZrO₂ solid solution catalysts remain limited. In this work, a ZnO-ZrO₂ solid solution and a series of Cu/ZnO/ZrO₂-<em>x</em> catalysts (<em>x</em> = 0.3, 0.7 and 0.9, denoting the molar ratio of Cu/(Cu+Zn+Zr)) were prepared by co-precipitation method. Among these catalysts, the Cu/ZnO/ZrO₂-0.7 catalyst exhibited the optimal catalytic performance, with a space-time yield of methanol (162.7 g/(kg·h)) that was 6.6 times higher than that of the ZnO-ZrO₂ solid solution catalyst (24.8 g/(kg·h)) at 250 °C. Structural characterizations reveal that the introduction of an appropriate amount of Cu led to the coexistence of a solid solution and individual metal oxides, and promoted the formation of medium-strength basic sites. <em>In situ</em> diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) results further confirm that Cu introduction facilitated the conversion of key reaction intermediates. This work provides a systematic investigation of the influence of Cu content on the methanol synthesis performance of ZnO-ZrO₂ solid solution catalysts and elucidates the promotional mechanism induced by Cu incorporation. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (139KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250318"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746297","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":"Calcination atmosphere-engineered Cu/SiO2 catalysts for efficient hydrogenation of dimethyl succinate to 1,4-butanediol","authors":"Xuhao SHAO,&nbsp;Xuyan ZHANG,&nbsp;Xiaorong CHEN,&nbsp;Jiaxin DU,&nbsp;Peipei AI,&nbsp;Minghui TAN,&nbsp;Zhihua GAO,&nbsp;Wei HUANG","doi":"10.1016/S1872-5813(26)60663-9","DOIUrl":"10.1016/S1872-5813(26)60663-9","url":null,"abstract":"<div><div>The catalytic hydrogenation of biomass-derived dimethyl succinate (DMS) to 1,4-butanediol (BDO) represents a pivotal route for producing high-value C4 chemicals in the context of green chemistry. Cu/SiO₂ catalysts are known for their high selectivity in hydrogenating ester groups, and their performance is correlated with the microstructure of the copper species. Although calcination is a critical step in defining this active structure, the systematic influence of the calcination atmosphere remains underexplored. In this study, Cu/SiO₂ catalysts were prepared <em>via</em> a urea-assisted hydrothermal method and calcined under different atmospheres to elucidate their effects on catalyst physicochemical properties and subsequent hydrogenation performance. A comprehensive characterization suite (N₂ physisorption, FT-IR, H₂-TPR, XRD, TEM, N₂O pulse chemisorption, XPS and NH₃-TPD) revealed that the calcination atmosphere profoundly alters the metal-support interaction, thereby regulating the dispersion and chemical state of the loaded copper species. Specifically, calcination in air promoted a stronger metal-support interaction, effectively enhancing the dispersion of copper species and increasing the proportion of key active Cu⁺ species. Consequently, the air-calcined catalyst demonstrated superior performance, achieving 92.37% DMS conversion and 64.15% BDO yield under optimized conditions (210 °C, 5.0 MPa, WHSV of 0.6 h⁻¹, H₂/DMS molar ratio of 100). This work underscores calcination atmosphere engineering as a potent strategy for optimizing metal-support interactions in heterogeneous catalysts for efficient hydrogenation processes. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (150KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250326"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746287","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":"Research progress on the cobalt-based catalysts for the hydrogenation of carbon dioxide to ethanol","authors":"Linghui BIAN,&nbsp;Jing WANG,&nbsp;Chenyu DING,&nbsp;Wenjing SUN,&nbsp;Ning WANG","doi":"10.1016/S1872-5813(26)60666-4","DOIUrl":"10.1016/S1872-5813(26)60666-4","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The catalytic hydrogenation of CO&lt;sub&gt;2&lt;/sub&gt; to ethanol represents a pivotal technology for achieving carbon neutrality and producing high-value fuels and chemicals, where developing the catalysts of high activity, high ethanol selectivity, and long-term stability is vitally important. Currently, the catalysts for the CO&lt;sub&gt;2&lt;/sub&gt; hydrogenation to produce ethanol mainly include noble metal-based catalysts (Pt, Pd, Rh, etc.) and Fischer-Tropsch synthesis catalysts (Fe, Co, Mo, etc.); among them, the cobalt-based catalysts have emerged as an ideal candidate for the thermocatalytic hydrogenation of CO&lt;sub&gt;2&lt;/sub&gt; to ethanol, owing to their unique electronic structure and tunability. However, the inherent chemical inertness of the relatively stable CO&lt;sub&gt;2&lt;/sub&gt; molecule poses a significant barrier to its activation. Furthermore, under high-temperature and high-pressure conditions, the hydrogenation of CO&lt;sub&gt;2&lt;/sub&gt; is highly prone to forming undesirable byproducts such as methane or CO, whereas the selective activation of CO&lt;sub&gt;2&lt;/sub&gt; and its subsequent conversion into ethanol remain particularly challenging. Accordingly, current processes for the CO&lt;sub&gt;2&lt;/sub&gt; hydrogenation to ethanol are greatly limited by the low single-pass conversion of CO&lt;sub&gt;2&lt;/sub&gt;, insufficient selectivity toward the target product (ethanol &lt; 60%), and the tendency of catalysts to rapid deactivation. This review aims to conduct a systematic and in-depth analysis of the recent research progress of the cobalt-based catalysts used in the conversion of CO&lt;sub&gt;2&lt;/sub&gt; into ethanol. We first establish the basic reaction framework, clarify the thermodynamic boundary conditions, and determine the kinetic steps that control the overall reaction rate. When delving into the molecular-level events, we analyze the complex microscopic mechanisms responsible for the two most critical steps: the initial formation of C–C bonds and the subsequent controlled removal of oxygen. The formation of C–C bonds is a necessary and particularly delicate step for generating ethanol and other C&lt;sub&gt;2+&lt;/sub&gt; products and the reaction mechanism of this step, whether through CO insertion, CO dimerization, or hydroxyl carbonyl (CHOH) coupling, is subject to intense debate and strongly influenced by the properties of the active sites. We then critically assess the synergistic effects among various active sites such as metallic Co, Co&lt;sub&gt;2&lt;/sub&gt;C, CoO&lt;sub&gt;&lt;em&gt;x&lt;/em&gt;&lt;/sub&gt; and bimetallic configurations on the reaction mechanism; in particular, the structure-activity relationships influenced by the support effects and promoter modifications are thoroughly discussed. Lastly, the application of inverse catalysts and tandem catalytic systems in ethanol synthesis is reviewed. The role of water as a hydrogen source and its impact on the reaction are analyzed in depth. This review tries to integrate current knowledge and identifies existing shortcomings, which presents a forward-looking outlook o","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250310"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746292","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":"A review of methane photocatalytic systems","authors":"Yingxiao WANG,&nbsp;Pengyu CHEN,&nbsp;Yingdong HAO,&nbsp;Wei WEI,&nbsp;Nannan SUN","doi":"10.1016/S1872-5813(26)60721-9","DOIUrl":"10.1016/S1872-5813(26)60721-9","url":null,"abstract":"<div><div>Methane (CH₄), the main component of natural gas, is regarded as an ideal feedstock for producing high-value-added chemicals and clean fuels due to its high hydrogen-to-carbon ratio. However, the CH₄ molecule is highly chemically inert, and traditional thermal catalytic reforming processes suffer from long reaction pathways and high energy consumption. In contrast, photocatalytic technology enables highly selective conversion of CH₄ under mild conditions, even at room temperature, offering environmental benefits, economic advantages, and process efficiency, thereby facilitating the transition toward low-carbon chemical production. This review systematically summarizes recent advances in room temperature photocatalytic systems for direct CH₄ conversion. It begins by elucidating the mechanisms, product distributions, and inherent challenges of four key reaction pathways: partial oxidation, non-oxidative coupling, oxidative coupling and oxidative carbonylation of CH₄. The discussion then shifts to the critical role of catalyst architecture, focusing on the design of semiconductor supports, the modulation of metal sites, and the integration of advanced porous frameworks. Furthermore, this review also addresses reactor design and process intensification strategies, including batch and continuous-flow reactors, novel structured reactors, as well as photo-electro and photo-thermo synergistic catalytic approaches. Finally, the reaction mechanisms of photocatalytic CH₄ conversion are summarized. Despite considerable progress, this field still faces challenges in fundamental understanding, performance evaluation, and technological integration. Future efforts should focus on in-depth mechanistic studies, standardization of evaluation protocols, development of non-noble metal catalysts, optimization of system processes, and comprehensive sustainability assessments. \u0000\t\t\t\t<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (156KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 8","pages":"Article 20250323"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148746295","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 surface oxygen species via Mg-Ba co-doping on La2O3 to enhance oxidation coupling of methane performance","authors":"Ke WANG,&nbsp;Qi ZHANG,&nbsp;Pengyu NIU,&nbsp;Minggui LIN,&nbsp;Litao JIA,&nbsp;Debao LI,&nbsp;Riguang ZHANG","doi":"10.1016/S1872-5813(26)60677-9","DOIUrl":"10.1016/S1872-5813(26)60677-9","url":null,"abstract":"<div><div>Mg-, Ca-, Sr- and Ba-single-doped La₂O₃ as well as Mg-Ba co-doped La₂O₃ catalysts were synthesized <em>via</em> a hydrothermal method and evaluated for the oxidative coupling of methane (OCM). The experimental results revealed that the Mg-modified La₂O₃ catalyst activates O₂ and CH₄ effectively, yet achieves only moderate C₂₊ selectivity. Conversely, the Ba-modified analogue affords high C₂₊ selectivity, albeit at the expense of lower reaction activity. Notably, the Mg-Ba co-doped La₂O₃ catalyst strikes an effective balance between activity and selectivity, enhancing catalytic performance while maintaining a high C₂₊ selectivity. Specifically, at a Mg/Ba molar ratio of 1:1 and 700 °C, it achieved a CH₄ conversion of 29.5%, a C₂₊ selectivity of 54.5% and a corresponding C₂₊ yield of 16.1%. The characterization results indicate that Mg and Ba co-doped La₂O₃ catalysts promotes the formation of more O– 2 species on the catalyst surface, which in turn significantly enhances both the activity and selectivity of La₂O₃ catalysts.</div><div><span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (98KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 7","pages":"Article 20250374"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148646776","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}