Chinese Journal of Catalysis最新文献

{"title":"Advances in spin regulation of M-N-C single-atom catalysts and their applications in electrocatalysis","authors":"Jiayi Cui ,&nbsp;Xintao Yu ,&nbsp;Xueyao Li ,&nbsp;Jianmin Yu ,&nbsp;Lishan Peng ,&nbsp;Zidong Wei","doi":"10.1016/S1872-2067(24)60204-4","DOIUrl":"10.1016/S1872-2067(24)60204-4","url":null,"abstract":"<div><div>To enhance the efficiency of green energy harvesting and pollutant degradation, significant efforts are focused on identifying highly effective catalysts. Metal-nitrogen-carbon single-atom catalysts (M-N-C SACs) have emerged as pivotal in catalysis due to their unique geometric structures, electronic states, and catalytic capabilities. Notably, the incorporation of magnetic elements at the active centers of these single-atom catalysts has garnered attention for their role in efficient electrochemical conversions. The orientation of spin states critically influences the adsorption and formation of reactants and intermediates, making the precise control of spin alignment and magnetic moments essential for reducing energy barriers and overcoming spin-related limitations, thereby enhancing catalytic activity. Thus, understanding the catalytic role of spin and modulating spin density at M-N-C single-atom centers holds profound fundamental and technological significance. In this review, we elucidate the fundamental mechanisms governing spin states and its influence in electrocatalysis. We then discuss various strategies for adjusting the spin states of active centers in the M-N-C SACs and the associated characterization techniques. Finally, we outline challenges and future perspectives of spin regulation for high-performance catalysts. This review provides deep insights into the micro-mechanisms of catalytic phenomena and offers a roadmap for designing spin-regulated catalysts for advanced energy applications.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 17-34"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic performances of engineered and artificial heme peroxygenases","authors":"Yiping Jiang ,&nbsp;Zaw Ko Latt ,&nbsp;Zhiqi Cong","doi":"10.1016/S1872-2067(24)60206-8","DOIUrl":"10.1016/S1872-2067(24)60206-8","url":null,"abstract":"<div><div>Heme peroxygenases exhibit remarkable catalytic versatility in facilitating a wide array of oxidative reactions under mild conditions, eliminating the need for coenzymes and intricate electron transport systems. This unique character underscores their essentiality and potential as promising tools in synthetic biology. Recent advancements in enzyme engineering have significantly enhanced the catalytic performance of both natural and artificial peroxygenases. Extensive engineering efforts have been directed towards unspecific peroxygenases and fatty acid peroxygenases, aiming to expand their substrate specificities, and enhance reaction selectivities, as well as increase enzyme stability. Furthermore, innovative strategies such as dual-functional small molecule-assisted systems and H₂O₂ tunnel engineering have been harnessed to transform P450 monooxygenases into highly efficient peroxygenases, capable of catalyzing reactions with a variety of unnatural substrates. This review consolidates the latest progress in the engineered and artificial heme peroxygenases, emphasizing their catalytic performances as potent biocatalysts for sustainable organic synthesis.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 35-51"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual mediators promote charge transfer of hematite photoanode for durable photoelectrocatalytic water splitting","authors":"Yuanyuan Jiang ,&nbsp;Yan Zhang ,&nbsp;Mengmeng Liu ,&nbsp;Lulu Liu,&nbsp;Hong Chen,&nbsp;Sheng Ye","doi":"10.1016/S1872-2067(24)60200-7","DOIUrl":"10.1016/S1872-2067(24)60200-7","url":null,"abstract":"<div><div>Regulating the interfacial charge transfer is pivotal for elucidating the kinetics of engineering the interface between the light-harvesting semiconductor and the substrate/catalyst for photoelectrocatalytic water splitting. In this study, we constructed a superior Ti-doped hematite photoanode (TiFeO) by employing SnO_<em>x</em> as an electron transfer mediator, partially oxidized graphene (pGO) as a hole transfer mediator, and molecular Co cubane as a water oxidation catalyst. The Co/pGO/TiFeO/SnO_<em>x</em> integrated system achieves a photocurrent density of 2.52 mA cm^–2 at 1.23 V_RHE, which is 2.4 times higher than bare photoanode (1.04 mA cm^–2), with operational stability up to 100 h. Kinetic measurements indicate that pGO can promote charge transfer from TiFeO to the Co cubane catalyst. In contrast, SnO_<em>x</em> reduces charge recombination at the interface between TiFeO and the fluorinated tin oxide substrate. <em>In-situ</em> infrared spectroscopy shows the formation of an O–O bonded intermediate during water oxidation. This study highlights the crucial role of incorporating dual charge-transfer mediators into photoelectrodes for efficient solar energy conversion.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 75-83"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tandem design on electrocatalysts and reactors for electrochemical CO2 reduction","authors":"Mingzhi Wang,&nbsp;Wensheng Fang,&nbsp;Deyu Zhu,&nbsp;Chenfeng Xia,&nbsp;Wei Guo,&nbsp;Bao Yu Xia","doi":"10.1016/S1872-2067(24)60209-3","DOIUrl":"10.1016/S1872-2067(24)60209-3","url":null,"abstract":"<div><div>Electrochemical CO₂ reduction (ECR) driven by intermittent renewable energy sources is an emerging technology to achieve net-zero CO₂ emissions. Tandem electrochemical CO₂ reduction (T-ECR), employs tandem catalysts with synergistic or complementary functions to efficiently convert CO₂ into multi-carbon (C₂₊) products in a succession of reactions within single or sequentially coupled reactors. However, the lack of clear interpretation and systematic understanding of T-ECR mechanisms has resulted in suboptimal current outcomes. This review presents new perspectives and summarizes recent advancements in efficient T-ECR across various scales, including synergistic tandem catalysis at the microscopic scale, relay tandem catalysis at the mesoscopic scale, and tandem reactors at the macroscopic scale. We begin by outlining the principle of tandem catalysis, followed by discuss on tandem catalyst design, the electrode construction, and reactor configuration. Additionally, we address the challenges and prospects of tandem strategies, emphasizing the integration of machine learning, theoretical calculations, and advanced characterization techniques for developing industry-scale CO₂ valorization.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 1-16"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2D Phthalocyanine-based covalent organic frameworks for infrared light-mediated photocatalysis","authors":"Xiaoning Zhan,&nbsp;Yucheng Jin,&nbsp;Bin Han,&nbsp;Ziwen Zhou,&nbsp;Baotong Chen,&nbsp;Xu Ding,&nbsp;Fushun Li,&nbsp;Zhiru Suo,&nbsp;Rong Jiang,&nbsp;Dongdong Qi,&nbsp;Kang Wang,&nbsp;Jianzhuang Jiang","doi":"10.1016/S1872-2067(24)60196-8","DOIUrl":"10.1016/S1872-2067(24)60196-8","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) based photocatalysts utilizing infrared light remains unexplored due to the limitation of electronic absorption. Herein, two novel two-dimensional (2D) polyimide-linked phthalocyanine COFs, namely <em>M</em>Pc-DPA-COFs (<em>M</em> = Zn/Cu), were prepared from the imidization reaction of metal tetraanhydrides of 2,3,9,10,16,17,23,24-octacarboxyphthalocyaninato (M(TAPc)) with 9,10-diphenyl anthracene (DPA). Both COFs possess highly crystalline eclipsed AA stacking structure with neighboring layer distance of 0.33 nm on the basis of powder X-ray diffraction analysis and high-resolution transmission electron microscopy. Effective π–π interaction between phthalocyanine chromophores in neighboring layers of 2D COFs leads to significant bathochromic-shift of narrow Q band from 697 nm for M(TAPc) to the infrared light absorption range of 760–1000 nm for MPc-DPA-COFs according to solid UV-vis diffuse reflectance spectra. This endows them in particular ZnPc-DPA-COF with excellent reactive oxygen species of ^•O₂^– and ¹O₂ generation activity under infrared light radiation (<em>λ</em> &gt; 760 nm) based on the electron spin resonance spectroscopy measurement, in turn resulting in the excellent photocatalytic capacity towards oxidation of sulfides under infrared light radiation. Corresponding quenching experiments reveal the contribution of both ^•O₂^– and ¹O₂ to the oxidation of sulfides, but the former ^•O₂^– species plays a leading role in this photocatalytic process. The present result not only provides a new efficient infrared light photocatalyst but also unveils the good potentials of phthalocyanine-based COFs in photocatalysis.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 271-281"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the C–C coupling mechanism in electrochemical CO reduction at low CO coverage: Dynamic change in site preference matters","authors":"Zhe Chen ,&nbsp;Tao Wang","doi":"10.1016/S1872-2067(24)60180-4","DOIUrl":"10.1016/S1872-2067(24)60180-4","url":null,"abstract":"<div><div>A thoroughly mechanistic understanding of the electrochemical CO reduction reaction (eCORR) at the interface is significant for guiding the design of high-performance electrocatalysts. However, unintentionally ignored factors or unreasonable settings during mechanism simulations will result in false positive results between theory and experiment. Herein, we computationally identified the dynamic site preference change of CO adsorption with potentials on Cu(100), which was a previously unnoticed factor but significant to potential-dependent mechanistic studies. Combined with the different lateral interactions among adsorbates, we proposed a new C–C coupling mechanism on Cu(100), better explaining the product distribution at different potentials in experimental eCORR. At low potentials (from –0.4 to –0.6 V_RHE), the CO forms dominant adsorption on the bridge site, which couples with another attractively aggregated CO to form a C–C bond. At medium potentials (from –0.6 to –0.8 V_RHE), the hollow-bound CO becomes dominant but tends to isolate with another adsorbate due to the repulsion, thereby blocking the coupling process. At high potentials (above –0.8 V_RHE), the CHO intermediate is produced from the electroreduction of hollow-CO and favors the attraction with another bridge-CO to trigger C–C coupling, making CHO the major common intermediate for C–C bond formation and methane production. We anticipate that our computationally identified dynamic change in site preference of adsorbates with potentials will bring new opportunities for a better understanding of the potential-dependent electrochemical processes.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 193-202"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface defect engineering of ZnCoS in ZnCdS with twin crystal structure for visible-light-driven H2 production coupled with benzyl alcohol oxidation","authors":"Tan Ji Siang ,&nbsp;Peipei Zhang ,&nbsp;Binghui Chen ,&nbsp;Wee-Jun Ong","doi":"10.1016/S1872-2067(24)60197-X","DOIUrl":"10.1016/S1872-2067(24)60197-X","url":null,"abstract":"<div><div>Photoredox dual reaction of organic synthesis and H₂ evolution opens up a novel pathway for collaboratively generating clean fuels and high-quality chemicals, providing a more effective approach of solar energy conversion. Herein, a surface defect-engineered ZnCoS/ZnCdS heterostructure with zinc blende (ZB)/wurtzite (WZ) phase junctions is synthesized for photocatalytic cooperative coupling of benzaldehyde (BAD) and H₂ production. This surface defect-engineered ZnCoS/ZnCdS heterostructure elaborately integrates the mixed phase junction advantage of ZnCdS semiconductor and the cocatalytic function of ZnCoS possessing Zn (V_Zn-ZnCoS/ZnCdS) or S vacancies (V_S-ZnCoS/ZnCdS). The optimum V_S-ZnCoS/ZnCdS simultaneously exhibits a superior H₂ production rate of 14.23 mmol h⁻¹ g⁻¹ accompanied with BAD formation rate of 12.29 mmol h⁻¹ g⁻¹ under visible-light irradiation, which is approximately two-fold greater than that of pristine ZnCdS. Under simulated sunlight irradiation (AM 1.5), V_S-ZnCoS/ZnCdS achieves H₂ evolution (27.43 mmol g_cat⁻¹ h⁻¹) with 0.52% of STH efficiency, accompany with 26.31 mmol g_cat⁻¹ h⁻¹ of BAD formation rate. The underlying solar-driven mechanism is elucidated by a series of <em>in-situ</em> characterization and control experiments, which reveals the synergistic effect of interfacial ZB/WZ phase junctions in ZnCdS and S vacancies of ZnCoS on enhancement of the photoredox dual reaction. The V_S-ZnCoS/ZnCdS follows a predominant oxygen-centered radical integrating with carbon-centered radical pathways for BAD formation and a simultaneous electron-driven proton reduction for H₂ production. Interestingly, the nature of surface vacancies not only facilitates the separation of photoinduced charge carriers but also able to selectively adjust the mechanism pathway for BAD production <em>via</em> tuning the oxygen-centered radical and carbon-centered radical formation.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 84-98"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Switching electronic effects of UiO-67-Pd using fluorinated ligands for catalytic oxidative arylation of bio-based furfuryl alcohol","authors":"Dongwen Guo,&nbsp;Guohui Zeng,&nbsp;Jinxing Long,&nbsp;Biaolin Yin","doi":"10.1016/S1872-2067(24)60207-X","DOIUrl":"10.1016/S1872-2067(24)60207-X","url":null,"abstract":"<div><div>An efficient and novel approach is proposed for oxidative arylation of bio-based furfuryl alcohol (FA) to aryl furans (AFs), a versatile monomer of photoelectric materials, in the presence of UiO-67-Pd(F) with phenanthroline/ bipyridine, and poly-F substituted phenyl ligands as the mixture linkers. The results of control experiments and theoretical calculations reveal that the –F on the phenyl linkers efficiently tunes the electron-deficient nature of Pd through the Zr₆ clusters bridges, which favors the adsorption and activation of the furan ring. Furthermore, the conjugation of different nitrogen-containing ligands facilitates Pd coordination for the Heck-type insertion and subsequent electrophilic palladation, respectively. As a result, the oxidative arylation of FA derivatives is substantially enhanced because of these electronic and steric synergistic effects. Under the optimized conditions, 72.2% FA conversion and 74.8% mono aryl furan (MAF) selectivity are shown in the Heck-type insertion. Meanwhile, 85.3% of MAF is converted, affording 74.8% selectivity of final product (AFs) in the subsequent electrophilic palladation reaction. This process efficiency is remarkably higher than that with homogeneous catalysts. In addition, furan-benzene polymer obtained from the halogen-free synthesis catalyzed by UiO-67-Pd(F) show significantly better properties than that from conventional Suzuki coupling method. Therefore, the present work provides a new insight for useful AFs synthesis by oxidative arylation of bio-furan <em>via</em> rational tunning the metal center micro-environment of heterogeneous catalyst.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 230-240"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced cofactor recycling and accelerated reaction rate via liquid-liquid phase separation in dual-enzyme condensates","authors":"Jiaxu Liu ,&nbsp;Jiaxin Chen ,&nbsp;Xiaoyan Zhang ,&nbsp;Daidi Fan ,&nbsp;Yunpeng Bai","doi":"10.1016/S1872-2067(24)60172-5","DOIUrl":"10.1016/S1872-2067(24)60172-5","url":null,"abstract":"<div><div>Enzyme catalysis is a promising way to produce chiral products in a green and sustainable way. However, the high cost of cofactors and their relatively low recycling efficiency hinder the widespread application of enzyme catalysis in industry. In contrast, cofactor regeneration and recycling in cells is highly efficient, mainly due to physical effects caused by the ordered spatial organization of enzymes <em>in vivo</em>. The construction of similar catalytic systems with high cofactor recycling <em>in vitro</em> remains challenging. Here, we present a facile method to generate dual enzyme condensates <em>in vitro</em> based on intrinsically disordered region-mediated liquid-liquid phase separation. Typically, a carbonyl reductase from <em>Serratia marcescens</em> (<em>Sm</em>CR_V4) and a glucose dehydrogenase from <em>Bacillus megaterium</em> (<em>Bm</em>GDH) were co-localized in the condensates. This resulted in an up to 20-fold increase in cofactor recycling efficiency (substrate converted per cofactor per unit time), and a 3.4-fold increase in space-time yield compared to the free enzyme system. The reaction enhancement was shown to be highly correlated with the degree of condensation of the dual enzymes. Fluorescence confocal microscopy showed that the cofactor, nicotinamide adenine dinucleotide phosphate (NADPH), was enriched between neighboring enzymes during the reaction due to the proximity effect, facilitating its regeneration and recycling within the condensate. In a scaled-up synthesis, the consumption of NADPH was reduced 50-fold compared to industrial biocatalytic standards, while the condensate still maintained efficient product synthesis. Concentrating multiple enzymes in a nano- and micro-condensate to increase the reaction rate may provide a general and inexpensive method for improving cofactor-involved enzymatic reactions.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 135-148"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of selective reduction of N2O by CO over Fe-β catalysts studied by in-situ/operando spectroscopy","authors":"Yucheng Qian ,&nbsp;Shunsaku Yasumura ,&nbsp;Ningqiang Zhang ,&nbsp;Akihiko Anzai ,&nbsp;Takashi Toyao ,&nbsp;Ken-ichi Shimizu","doi":"10.1016/S1872-2067(24)60161-0","DOIUrl":"10.1016/S1872-2067(24)60161-0","url":null,"abstract":"<div><div>Selective reduction of N₂O by CO under excess O₂ was effectively catalyzed by Fe(0.9 wt%)-exchanged β zeolite (Fe0.9β) in the temperature range of 250–500 °C. Kinetic experiments showed that the apparent activation energy for N₂O reduction with CO was lower than that for the direct N₂O decomposition, and the rate of N₂O reduction with CO at 300 °C was 16 times higher than that for direct N₂O decomposition. Reaction order analyses showed that CO and N₂O were involved in the kinetically important step, while O₂ was not involved in the important step. At 300 °C, the rate of CO oxidation with 0.1% N₂O was two times higher than that of CO oxidation with 10% O₂. This quantitatively demonstrates the preferential oxidation of CO by N₂O under excess O₂ over Fe0.9β. <em>Operando/in-situ</em> diffuse reflectance ultraviolet-visible spectroscopy showed a redox-based catalytic cycle; α-Fe-O species are reduced by CO to give CO₂ and reduced Fe species, which are then re-oxidized by N₂O to regenerate the α-Fe-O species. The initial rate for the regeneration of α-Fe-O species under 0.1% N₂O was four times higher than that under 10% O₂. This result shows quantitative evidence on the higher reactivity of N₂O than O₂ for the regeneration of α-Fe-O intermediates, providing a fundamental reason why the Fe0.9β catalyst selectively promotes the CO + N₂O reaction under excess O₂ rather than the undesired side reaction of CO + O₂. The mechanistic model was verified by the results of <em>in-situ</em> Fe K-edge X-ray absorption spectroscopy.</div></div>","PeriodicalId":9832,"journal":{"name":"Chinese Journal of Catalysis","volume":"69 ","pages":"Pages 185-192"},"PeriodicalIF":15.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}