Reaction Kinetics, Mechanisms and Catalysis最新文献

{"title":"Kinetic interpretation of full factorial experimental design main factor interactive effects on heavy metal biosorption from aqueous solution: sorption of Pb(II) and Zn(II) ions using ground Typha capensis root biomass","authors":"Mark Fungayi Zaranyika,&nbsp;Margaret Zvikomborero Mashingaidze,&nbsp;Henry H. Mungondori","doi":"10.1007/s11144-026-03090-4","DOIUrl":"10.1007/s11144-026-03090-4","url":null,"abstract":"<div><p>The purpose of this work was to demonstrate the feasibility of kinetic interpretation of Full Factorial experimental design factor interactive effects observed during biosorption experiments. The biosorption of Pb(II) and Zn(II) ions from aqueous solution using <i>Typha capensis</i> biomass adsorbent was studied as a typical example. Four factors were studied: A (biosorbent particle size), B (pH), C (biosorbent dose) and D (initial metal ion concentration). Kinetic interpretation of the interaction effects was based on the assumption that since adsorption is reversible, and if the interacting main factors can be expressed as concentrations, then the product of the interacting factors gives the law-of-mass-action equation of the interaction. Biosorbent particle size and dose were defined in terms of number of active adsorption sites per biosorbent particle. When applied to the biosorption of Pb(II) and Zn(II) ions using <i>T.capensis</i> biosorbent, full factorial design (FFD) standardized interactive effects data obtained show that biosorption was subject to several factor interaction equilibria, 12 of which significantly affected the biosorption, and comprise 2 biosorbent particle aggregation/de-aggregation equilibria (AC, ABC), 2 surface active functional group ionization/de-ionization equilibria (AB, BC), 2 metal-ion biosorption via ion exchange equilibria (ABD, CBD), 3 metal-ion biosorption via physical adsorption (AD, CD, ACD), 2 metal ion hydration/de-hydration equilibria (D, BD), and 1 water molecule ionization/de-ionization equilibrium (B). Physical adsorption, ion exchange and biosorbent particle aggregation mediated metal biosorption were identified as the operative biosorption mechanisms. Data are presented showing that kinetic modelling of the interaction reactions identified leads to a generalized biosorption kinetic model consistent with experiment.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2707 - 2729"},"PeriodicalIF":2.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of benzimidazole derivatives using Brønsted acidic ionic liquid supported on MCM-41 as a heterogeneous catalyst","authors":"Baraa Ahmad Neama,&nbsp;Haitham Dalol Hanoon,&nbsp;Hayder Hamied Mihsen","doi":"10.1007/s11144-026-03112-1","DOIUrl":"10.1007/s11144-026-03112-1","url":null,"abstract":"<div><p>An easy and effective one-pot method was utilized to synthesize benzimidazole derivatives using a heterogeneous Brønsted acidic ionic liquid catalyst ([MCM-41-(PSim)][SO₄H]) supported on MCM-41, which was derived from rice husks. Initially, MCM-41 was modified using 3-(chloropropyl)triethoxysilane. The modified material, MCM-41-(CPS), was then reacted with imidazole to yield the compound [MCM-41-(PSim)][Cl]. This was followed by acidification with 0.5 M sulfuric acid to generate Brønsted acidic ionic liquid ([MCM-41-(PSim)][SO₄H]). Characterization of the new catalyst was conducted using FTIR, XRD, N2 adsorption–desorption analysis, TGA/DTG, and SEM–EDX. Utilizing the prepared catalyst, a diverse range of aldehydes and carboxylic acids were synthesized to produce benzimidazole derivatives. The catalyst can be easily recovered and synthesized with high yield under mild conditions and short reaction times, making this method economically viable for the preparation of benzimidazole derivatives.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2983 - 3000"},"PeriodicalIF":2.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of organic and inorganic additives on the electrochemical behavior of KMnO4 at the electrode interface","authors":"Mennah Allah G. El-Zohiray,&nbsp;Esam A. Gomaa,&nbsp;Mohamed M. El-Defrawy,&nbsp;Mahmoud N. Abd El-Hady,&nbsp;Elsayed M. AbouElleef","doi":"10.1007/s11144-026-03109-w","DOIUrl":"10.1007/s11144-026-03109-w","url":null,"abstract":"<div><p>The electrochemical behavior of potassium permanganate (KMnO₄) was investigated using cyclic voltammetry in 0.1 M potassium fluoride solution in the absence and presence of bromocresol green (BCG) and selenium oxide (SeO₂). The KMnO₄–SeO₂ system exhibited significantly enhanced anodic and cathodic peak currents compared with pristine KMnO₄ and the KMnO₄–BCG system, indicating improved electron transfer and increased electrochemical activity. In contrast, the presence of BCG altered the redox characteristics of KMnO₄ but did not significantly enhance charge accumulation behavior. Analysis of scan-rate dependence confirmed that the electrochemical processes are predominantly diffusion-controlled with additional surface-associated contributions. The results demonstrate that selenium oxide effectively promotes charge transfer and electrochemical activity in KMnO₄ systems, providing insight into additive-assisted modulation of redox-mediated electrochemical processes.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2967 - 2982"},"PeriodicalIF":2.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetic modeling of sulfuric acid leaching for phosphate rock dissolution","authors":"Saida Yakoubi,&nbsp;Louisa Bounemia,&nbsp;Hocine Boutoumi,&nbsp;Hussein Khalaf","doi":"10.1007/s11144-026-03102-3","DOIUrl":"10.1007/s11144-026-03102-3","url":null,"abstract":"<div><p>This study investigates the dissolution kinetics of a sedimentary phosphate ore sourced from the Djebel Onk deposit (Algeria) in dilute H₂SO₄, with the objective of supporting the optimization of wet-process phosphoric acid production. The ore, primarily composed of fluorapatite associated with carbonate gangue minerals (calcite and dolomite) and containing 23–26% P₂O₅, was leached at ambient temperature using 3% H₂SO₄. To assess the dissolution behavior of magnesium-bearing carbonates, the release of Mg²⁺ was monitored throughout the leaching experiments. In addition, experiments were conducted across various particle size fractions to evaluate the influence of granulometry on the dissolution process. The kinetic data were interpreted using two complementary modeling approaches: a first order reaction model and a non-linear dependence model accounting for ion exchange phenomena. The results reveal a significant dependence of dissolution behavior on particle size. Specifically, application of the first order model to the coarse fraction (− 1.25 + 0.08 mm) yielded a dissolution rate constant (k) of 0.10 ± 0.01 min⁻¹ and an equilibrium Mg concentration of 0.82 ± 0.03 g/L. In contrast, for the finer fraction (− 0.5 + 0.1 mm), while the rate constant remained comparable at 0.09 ± 0.01 min⁻¹, the equilibrium Mg concentration increased markedly to 2.96 ± 0.17 g/L. Furthermore, the more complex dependence model confirmed that particle size influences the underlying dissolution mechanism. Although the rate constant remained stable (~ 0.09 min⁻¹) for both fractions, the finer fraction exhibited a reduced dependence on ion exchange (with an estimated ion exchange parameter of 0.5) compared to the coarser fraction (1.02), thereby indicating a shift in the rate-limiting step. Taken together, these findings highlight that both granulometry and ionic interactions are critical factors governing the dissolution kinetics of phosphate ore in sulfuric acid. Consequently, this underscores the need to tailor operating conditions to specific mineral fractions in order to optimize the recovery of magnesium and, by extension, other associated elements.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2833 - 2847"},"PeriodicalIF":2.1,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous photocatalytic removal of cyanide and Cr(VI) under alkaline conditions by using TiO2/g-C3N4/graphene oxide composite: a synergistic approach","authors":"José M. Barrera-Andrade,&nbsp;Elim Albiter,&nbsp;Miguel A. Valenzuela","doi":"10.1007/s11144-026-03106-z","DOIUrl":"10.1007/s11144-026-03106-z","url":null,"abstract":"<div><p>This study presents a novel ternary composite photocatalyst, titanium dioxide/graphene oxide/graphitic carbon nitride (TGN), for the simultaneous oxidation of cyanide (CN⁻) and reduction of hexavalent chromium Cr(VI) from co-contaminated aqueous solutions. Synthesized via a hydrothermal method, TGN demonstrated outstanding performance, achieving complete oxidation of cyanide to cyanate (CNO⁻) and full reduction of Cr(VI) to Cr(III) under optimized conditions (pH = 10). Kinetic analysis revealed that the TGN catalyst exhibits promising rate constants for the degradation of cyanide and hexavalent chromium. The TG and TN composites demonstrated good photocatalytic activity. For Cr(VI) reduction, TGN surpassed TG and TN by a factor of 2 and exceeded the activities of pristine g-C₃N₄ and graphene oxide. The treated effluent was free of Cr(VI) and exhibited significantly reduced toxicity, with Cr(III) precipitating as hydroxide and adsorbing onto the TGN surface. These results underscore TGN’s potential as a highly efficient and sustainable photocatalyst for the remediation of industrial wastewater.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2915 - 2933"},"PeriodicalIF":2.1,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrocatalytic hydrogen evolution by a copper(II) complex: influence of pH and mechanistic insight via density functional theory","authors":"Soumen Rakshit,&nbsp;Jyotirmoy Mitra,&nbsp;Himangshu Mondal,&nbsp;Jaya Pal,&nbsp;Ram Chandra Maji","doi":"10.1007/s11144-026-03107-y","DOIUrl":"10.1007/s11144-026-03107-y","url":null,"abstract":"<div><p>In this study, we report the synthesis and electrocatalytic proton reduction activity of a copper(II) complex, [Cu(HL)]ClO₄, <b>1</b>, formed using a redox-active N, O-donor Schiff base ligand (H₂L). The complex was thoroughly characterized by FTIR, ¹H NMR, ESI–MS, UV–Vis, and EPR spectroscopy, confirming successful coordination to the Cu^II center. Electrochemical studies in phosphate buffer solution (PBS) at pH 2.5 revealed quasi-reversible Cu^II/Cu^I and Cu^I/Cu⁰ redox couples, along with a ligand-centered oxidation process. The electrocatalytic hydrogen evolution reaction (HER) activity of <b>1</b> was evaluated in PBS at pH 2.5, 4.6, and 7. The catalyst showed efficient proton reduction with onset overpotentials of 892 mV (pH 2.5), 678 mV (pH 4.6), and 517 mV (pH 7). Bulk electrolysis at − 1.5 V for 130 min at pH 2.5 produced 95 C of charge, equivalent to a theoretical H₂ gas generation of 2.62 × 10^–4 mol. At pH 2.5, the observed current density is 8.15 mA cm⁻² at scan rate 100 mV s⁻¹, with <i>i</i>_<i>cat</i>/<i>i</i>_<i>p</i> ratio ~57. The observed rate constant (<i>k</i>_obs) for HER was 1.93 × 10³ s⁻¹ and 5.6 × 10² s⁻¹ at pH 2.5 and 4.6, indicating that <i>k</i>_obs value is highly dependent on the availability of proton sources. Mechanistic studies revealed a pH-dependent behavior: at pH 4.6 and 7, catalysis proceeds <i>via</i> a Cu^I intermediate; at pH 2.5, Cu⁰ involvement indicates a mechanistic shift. UV–Vis, FTIR, and DFT analyses confirmed structural stability and supported the proposed catalytic pathway, demonstrating <b>1</b> as a robust and efficient HER catalyst in aqueous media.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2869 - 2889"},"PeriodicalIF":2.1,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic CaO–H₂O₂–O₃ photocatalytic system for efficient phenol degradation: mechanistic evaluation","authors":"Maryam Tareq Al-Ameri,&nbsp;Farah Talib Jasim,&nbsp;Saba Adnan Gheni,&nbsp;Faisal Okab Yousif,&nbsp;Islam Md Rizwanul Fattah,&nbsp;Nalan Türköz Karakullukçu","doi":"10.1007/s11144-026-03103-2","DOIUrl":"10.1007/s11144-026-03103-2","url":null,"abstract":"<div><p>Phenolic waste in wastewater is also crucial environmental issues because they are very toxic and very chemical resistant. In this study a photocatalytic oxidation system using calcium limestone was designed to decompose phenol in aqueous solutions with the use of H₂O₂ and O₃ under ultraviolet light. Thermal activation, followed by the characterization of structural and surface properties of the catalyst by XRD, SEM–EDX, FTIR and BET was used to determine the properties of the catalyst (CaO). To quantify the system effect on the degradation of phenol, the systematic experiment was conducted on several operating parameters (solution pH, catalyst dosage, temperature, contact time, and initial phenol concentration). The UV/CaO/H₂O₃ process showed good synergic behaviour in the generation of reactive oxygen species. Within the optimized conditions (pH = 12, CaO = 2 wt%, O₃ = 30 mg L⁻¹ O₂), the percentage phenol degradation is 87.6 in 20 min, 65 and 82 % more so than the UV/CaO/H₂O₂ and UV/CaO. The tests also demonstrate that the catalyst can be recycled very well with reaction activities being high in three consecutive cycles with activity being reduced by a low percentage of only around 3. Moreover, experiments in both tap and river water have been found to demonstrate that the photocatalytic system can be carried out under natural conditions, which is slightly inhibited by dissolved ions, which scavenged the radicals. The findings imply the UV/CaO/H₂O₃ system is a good and cost-effective advanced oxidation process to treat contaminated wastewater.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2783 - 2815"},"PeriodicalIF":2.1,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetics of UV-assisted and MnO2 photocatalyzed degradation of dinaphthophenazine","authors":"Kelvin Kimaru,&nbsp;Seth Otieno Osumba,&nbsp;Josiah Ouma Omolo,&nbsp;John Onyango Adongo","doi":"10.1007/s11144-026-03095-z","DOIUrl":"10.1007/s11144-026-03095-z","url":null,"abstract":"<div><p>In this study, a Dinaphthophenazine (DNPz.) textile dye was subjected to degradation experiments to characterize its degradation rates and highlight the photocatalytic degradation effect of manganese (IV)oxide (MnO₂) by comparing the kinetics of UV-induced degradation against MnO₂–catalyzed photodegradation. Kinetic experiments were conducted by acquiring time-dependent wavelength scan absorption spectra at intervals using double-beam UV–Vis-NIR spectroscopy and a photo-cell setup. A multicurve kinetic profile plot analysis of the three experiments: exposure of DNPz to UV irradiation [DNPz. + UV irrad.], exposure of DNPz to MnO₂ only [DNPz. + MnO₂], and the exposure of DNPz to a similar dose of MnO₂ in the presence of UV_254 nm irradiation revealed a decrease in absorbance related to the DNPz molecule over time, indicating degradation of DNPz molecules under acidic conditions, pH 5.0 and at room temperature. A comparative analysis of the pseudo-first order degradation rates shows that exposure of DNPz to MnO₂ in the presence of UV irradiation gave the most significant average rate constant, which is about 9.65 times faster than in the case of the UV-assisted photodegradation based on kinetics monitored using DNPz’s Lambda max. absorptions at 621 nm. This is due to the photocatalytic effect of MnO₂. The exposure to MnO₂ showed a marked increase in DNPz degradation rate that was about 3.31 times that of the average photodegradation rate recorded by exposure to UV_254 nm irradiation only. These results show that MnO₂ in the presence of UV_254 nm can significantly enhance the degradation of the DNPz textile dye.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2731 - 2743"},"PeriodicalIF":2.1,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic oxidation of biomass combustion emissions over K-M/MgO (M = Cu, Mn, Fe) mixed oxide catalysts","authors":"Jessica San Martín-Dávison,&nbsp;Alberto Vergara-Fernández,&nbsp;Sichem Guerrero,&nbsp;Nelson Alarcón Pulido","doi":"10.1007/s11144-026-03104-1","DOIUrl":"10.1007/s11144-026-03104-1","url":null,"abstract":"<div><p>This study investigates the catalytic performance of a series of oxide catalysts for the combustion of a model gas mixture simulating emissions from biomass combustion. Low-cost raw materials were used to prepare monometallic catalysts (1%, 3%, and 5% K/MgO) and bimetallic catalysts (1%, 3%, and 5% K/(Cu/MgO), K/(Mn/MgO), and K/(Fe/MgO)). The model gas mixture consisted of CO, CH₄, C₁₀H₈, CO₂, air, and N₂. The catalysts were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential thermal analysis (DTA), nitrogen adsorption for BET surface area determination, and CO₂ temperature-programmed desorption (CO₂-TPD). The results demonstrate that all catalysts were active for the oxidation of CH₄ and C₁₀H₈, which those containing 1% potassium exhibiting the highest activity and achieving complete conversion at temperatures below 600 °C. Among the studied materials, the 1%K(5%Mn/MgO) catalyst showed the best performance, reaching 100% conversion of CH₄ and C₁₀H₈ at approximately 400 °C and 600 °C. The enhanced catalytic performance, particularly for the Mn-containing catalysts, is attributed to improved surface basicity and metal-support interactions at low potassium loadings, while higher K contents promote carbonate formation and surface area reduction, leading to partial deactivation.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 3","pages":"1789 - 1813"},"PeriodicalIF":1.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148011811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of coal oxidation kinetics based on a general reaction rate model","authors":"Wentao Zhao,&nbsp;Jun Li,&nbsp;Wenjie Hu","doi":"10.1007/s11144-026-03101-4","DOIUrl":"10.1007/s11144-026-03101-4","url":null,"abstract":"<div><p>This paper developed a general reaction rate model (GRRM) that excludes conversion rate (<i>α</i>) from its expression to obtain the kinetic parameters and predict the reaction rates of coal oxidation. To further eliminate the dependence of the kinetic parameters on <i>α</i> when predicting reaction rates, a linear relationship between ln<i>β</i> (heating rate, <i>β</i>) and 1/<i>T</i> (temperature, <i>T</i>) was established through theoretical analysis, to predict the corresponding <i>T</i> for each <i>α</i>. Based on the thermogravimetric experiments of coal oxidation under different <i>β</i> (2, 5, 10 K min⁻¹) and oxygen volume fractions (<i>Y</i>_O2 = 21%, 12%, 3%), the activation energy (<i>E</i>_<i>α</i>) and the pre-exponential factor (<i>A</i>_{eff,<i>α</i>}) were obtained using the GRRM. Results indicated that low <i>Y</i>_O2 inhibits reactions with high activation energy, leading to a decrease in average <i>E</i>_<i>α</i> as <i>Y</i>_O2 decreases. At 3% <i>Y</i>_O2, <i>E</i>_<i>α</i> within the <i>α</i> range of 0.4–0.85 is less than the spontaneous reaction activation energy of 40 kJ mol⁻¹. Moreover, combined with the linear relationship between ln<i>β</i> and 1/<i>T</i>, GRRM effectively predicted the reaction rates at a heating rate of 15 K min⁻¹ and under different <i>Y</i>_O2. Compared with the traditional model-free methods, the proposed GRRM demonstrates better predictive performance with an average prediction error below 15%.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 4","pages":"2817 - 2831"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}