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< Page ,Total 12 >
Copper-promoted late-stage glycosylsulfonylation of aryl iodide and bromide to access glycosyl aryl sulfones SCIE
期刊论文 | 2025 | ORGANIC & BIOMOLECULAR CHEMISTRY
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Abstract :

Glycosyl aryl sulfones exhibit diverse biological activities. Herein, we developed a copper-promoted coupling strategy using glycosyl sodium sulfinates and aryl iodides or bromides, enabling efficient synthesis of carbohydrate-based sulfone with broad functional group compatibility. This method offers a versatile approach for the late-stage modification of bioactive molecules.

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GB/T 7714 Wang, Linyitian , Guo, Huize , Luo, Jiaxin et al. Copper-promoted late-stage glycosylsulfonylation of aryl iodide and bromide to access glycosyl aryl sulfones [J]. | ORGANIC & BIOMOLECULAR CHEMISTRY , 2025 .
MLA Wang, Linyitian et al. "Copper-promoted late-stage glycosylsulfonylation of aryl iodide and bromide to access glycosyl aryl sulfones" . | ORGANIC & BIOMOLECULAR CHEMISTRY (2025) .
APA Wang, Linyitian , Guo, Huize , Luo, Jiaxin , Zhen, Wenxu , Wang, Shiping , Xie, Zailai et al. Copper-promoted late-stage glycosylsulfonylation of aryl iodide and bromide to access glycosyl aryl sulfones . | ORGANIC & BIOMOLECULAR CHEMISTRY , 2025 .
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Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis SCIE
期刊论文 | 2025 , 306 | CHEMICAL ENGINEERING SCIENCE
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The oxidative dehydrogenation of propane (ODHP) represents a highly promising route for the industrial-scale production of propene. Non-metallic boron nitride (BN)-based materials, known for their high propene selectivity, have emerged as next-generation ODH catalysts. However, the real active sites on surfaces remain unclear due to the absence of visual experimental evidence. In this work, we introduce a chemical titration approach to clarify the active centers of NaOH modified BN (BN-NaOH) catalysts for ODHP. The BN-NaOH catalyst demonstrates outstanding performance, achieving over 90 % olefin selectivity and a stable propane conversion of 23.2 %. Notably, the turnover frequency (TOF) for B-OH sites reaching 1.2 h- 1, which significantly surpassed that of unmodified BN catalysts (0.6 h- 1). In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analysis revealed that the formation of OH-nests on the BN-NaOH surface was primarily accountable for the enhanced reactivity. Moreover, the crucial role of these OH-nests during ODHP was further validated through selective chemical titration of B-OH groups using benzoic anhydride.

Keyword :

Active sites Active sites Boron hydroxyl group Boron hydroxyl group In situ DRIFTS In situ DRIFTS Oxidative dehydrogenation of propane Oxidative dehydrogenation of propane

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GB/T 7714 Duan, Qiwei , Hu, Zhengli , Hu, Aoxue et al. Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 306 .
MLA Duan, Qiwei et al. "Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis" . | CHEMICAL ENGINEERING SCIENCE 306 (2025) .
APA Duan, Qiwei , Hu, Zhengli , Hu, Aoxue , Huang, Shuping , Chen, Ziyi , Yu, Kaihua et al. Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis . | CHEMICAL ENGINEERING SCIENCE , 2025 , 306 .
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Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis Scopus
期刊论文 | 2025 , 306 | Chemical Engineering Science
Identification of active sites in boron nitride for propane oxidative dehydrogenation catalysis EI
期刊论文 | 2025 , 306 | Chemical Engineering Science
Crown Ether-Assisted Alkali-Metal Copper(I) Iodide Supramolecular Scintillators with Near-Unity Emission for Ultrahigh-Resolution X-Ray Imaging SCIE
期刊论文 | 2025 | ADVANCED FUNCTIONAL MATERIALS
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Abstract :

Harnessing supramolecular interactions to regulate the structure and performance of functional materials is a key challenge in materials chemistry. Herein, the study utilizes 18-crown-6 (18C6) ether-assisted alkali-metal (Na, K, Cs) copper(I) iodide supramolecular assemblies to precisely regulate the material structures. This approach facilitated the transition from 1D mono-royal crown coordination (18C6@KCuI2, CKCI) to 0D di-royal crown ((18C6)(2)@Na-2(H2O)(3)Cu4I6, CNCI) and tri-royal crown ((18C6)(3)@Cs2Cu2I4, CCCI) structures. Interestingly, the CCCI single-crystal exhibits outstanding scintillation properties, with a high relative light yield of 71 000 photons MeV-1 and an ultralow detection limit of 39.3 nGy s(-1), which can be attributed to the synergistic effects of 18C6 and copper-iodide clusters. It stabilizes the self-trapped exciton state, enhances exciton localization, and reduces non-radiative losses, thus resulting in a large Stokes shift of 193 nm and near-unity photoluminescence quantum yield of 99.4%. Additionally, 18C6 can promote crystal nucleation and growth, making it easy to prepare centimeter-scale transparent single crystals with >80% transmittance, such as CCCI single crystal can achieve an ultrahigh-resolution X-ray imaging of 26.3 lp mm(-1). It demonstrates that the structure and performance of halide scintillators can be regulated through supramolecular interactions, which provides a new approach for developing high-performance scintillator materials.

Keyword :

18-crown-6 18-crown-6 copper(I) iodide copper(I) iodide self-trapped exciton state self-trapped exciton state supramolecular scintillators supramolecular scintillators X-ray imaging X-ray imaging

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GB/T 7714 Ye, Yuanji , Di, Yiming , Zhou, Jiahao et al. Crown Ether-Assisted Alkali-Metal Copper(I) Iodide Supramolecular Scintillators with Near-Unity Emission for Ultrahigh-Resolution X-Ray Imaging [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 .
MLA Ye, Yuanji et al. "Crown Ether-Assisted Alkali-Metal Copper(I) Iodide Supramolecular Scintillators with Near-Unity Emission for Ultrahigh-Resolution X-Ray Imaging" . | ADVANCED FUNCTIONAL MATERIALS (2025) .
APA Ye, Yuanji , Di, Yiming , Zhou, Jiahao , Qiu, Qiangwen , Chen, Yuhua , Zhong, Shanyuan et al. Crown Ether-Assisted Alkali-Metal Copper(I) Iodide Supramolecular Scintillators with Near-Unity Emission for Ultrahigh-Resolution X-Ray Imaging . | ADVANCED FUNCTIONAL MATERIALS , 2025 .
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Crown Ether-Assisted Alkali-Metal Copper(I) Iodide Supramolecular Scintillators with Near-Unity Emission for Ultrahigh-Resolution X-Ray Imaging Scopus
期刊论文 | 2025 | Advanced Functional Materials
Rational design of oxygen vacancy-rich self-supporting NiCo(OH)2 electrode for efficient biomass upgrading EI
期刊论文 | 2025 , 108 , 558-566 | Journal of Energy Chemistry
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Transition metal-based electrocatalysts are a promising alternative to noble metal catalysts for electrochemical upgrading of biomass-derived 5-hydroxymethylfurfural (HMF) into high-value 2,5-furandicarboxylic acid (FDCA). However, the rational design of efficient electrocatalysts with precisely tailored structure–activity correlations remains a critical challenge. Herein, we report a hierarchically structured self-supporting electrode (Vo-NiCo(OH)2-NF) synthesized through in situ electrochemical reconstruction of NiCo-Prussian blue analogue (NiCo-PBA) precursor, in which oxygen vacancy (Vo)-rich Co-doped Ni(OH)2 nanosheet arrays are vertically aligned on nickel foam (NF), creating an interconnected conductive network. When evaluated for the HMF oxidation reaction (HMFOR), Vo-NiCo(OH)2-NF exhibits exceptional electrochemical performance, achieving near-complete HMF conversion (99%), ultrahigh FDCA Faradaic efficiency (97.5%), and remarkable product yield (96.2%) at 1.45 V, outperforming conventional Co-doped Ni(OH)2 (NiCo(OH)2-NF) and pristine Ni(OH)2 (Ni(OH)2-NF) electrodes. By combining in situ spectroscopic characterization and theoretical calculations, we elucidate that the synergistic effects of Co-doping and oxygen vacancy engineering effectively modulate the electronic structure of Ni active centers, favor the formation of high-valent Ni3+ species, and optimize HMF adsorption, thereby improving the HMFOR performance. This work provides valuable mechanistic insights for catalyst design and may inspire the development of advanced transition metal-based electrodes for efficient biomass conversion systems. © 2025 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences.

Keyword :

Coated wire electrodes Coated wire electrodes Electrolytic reduction Electrolytic reduction Nanosheets Nanosheets Reconstruction (structural) Reconstruction (structural) Structural analysis Structural analysis Structural dynamics Structural dynamics

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GB/T 7714 Xie, Diexin , Chen, Jiabin , Hou, Jingxin et al. Rational design of oxygen vacancy-rich self-supporting NiCo(OH)2 electrode for efficient biomass upgrading [J]. | Journal of Energy Chemistry , 2025 , 108 : 558-566 .
MLA Xie, Diexin et al. "Rational design of oxygen vacancy-rich self-supporting NiCo(OH)2 electrode for efficient biomass upgrading" . | Journal of Energy Chemistry 108 (2025) : 558-566 .
APA Xie, Diexin , Chen, Jiabin , Hou, Jingxin , Yang, Fangfang , Feng, Runping , Cao, Changsheng et al. Rational design of oxygen vacancy-rich self-supporting NiCo(OH)2 electrode for efficient biomass upgrading . | Journal of Energy Chemistry , 2025 , 108 , 558-566 .
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CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities SCIE
期刊论文 | 2024 , 981 | JOURNAL OF ALLOYS AND COMPOUNDS
WoS CC Cited Count: 7
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Abstract :

The development of highly efficient bifunctional electrocatalysts with excellent stability at high current densities for overall water splitting is a challenging but urgent goal. Herein, a novel kind of significantly efficient bifunctional electrocatalysts has been elaborately designed through the fabrication of Fe-doped Ni2P nanosheets decorated with CeO2 nanoparticles (Fe-Ni2P/CeO2) grown on Ni foam. It reveals the existence of electron transfer from Ni2+ to Ce4+, resulting in an increase of Ni3+, of which the strong Lewis acidity promotes the adsorption of OH- and thus facilitates the formation and conversion of oxygen-related intermediates during the water splitting process. The resulting catalyst shows outstanding electrocatalytic activities for both oxygen evolution reaction (OER) (r20 = 190 mV, r1000 = 260 mV) and hydrogen evolution reaction (HER) (r20 = 78 mV, r1000 = 292 mV). Moreover, when utilized for overall water splitting, the Fe-Ni2P/CeO2 requires very low voltages of 1.52 V and 2.88 V to achieve current densities of 20 mA cm-2 and 1000 mA cm-2, respectively, outperforming the Pt/C || RuO2 electrolyzer. Importantly, the as-designed electrolyzer exhibits exceptional durability at a high current density of 1000 mA cm-2. This work has demonstrated an effective strategy for designing non-precious metal heterojunctions with abundant electrocatalytic active sites to drive efficient overall water splitting.

Keyword :

CeO2 nanoparticles CeO2 nanoparticles Fe-dopedNi2P Fe-dopedNi2P Heterojunction Heterojunction High current densities High current densities Overall water splitting Overall water splitting

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GB/T 7714 Huang, Yuxin , Ding, Xueda , Huang, Baobing et al. CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 981 .
MLA Huang, Yuxin et al. "CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities" . | JOURNAL OF ALLOYS AND COMPOUNDS 981 (2024) .
APA Huang, Yuxin , Ding, Xueda , Huang, Baobing , Xie, Zailai . CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 981 .
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CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities Scopus
期刊论文 | 2024 , 981 | Journal of Alloys and Compounds
CeO2-decorated Fe-doped Ni2P nanosheets for efficient electrocatalytic overall water splitting at high current densities EI
期刊论文 | 2024 , 981 | Journal of Alloys and Compounds
Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube SCIE
期刊论文 | 2024 , 20 (37) | SMALL
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Borocarbonitride (BCN) catalysts, boasting multiple redox sites, have shown considerable potential in alkane oxidative dehydrogenation (ODH) to olefin molecules. However, their catalytic efficiency still lags behind that of leading commercial catalysts, primarily due to the limited reactivity of oxygen functional groups. In this study, a groundbreaking hybrid catalyst is developed, featuring BCN nanotubes (BCNNTs) encapsulated with manganese (Mn) clusters, crafted through a meticulous supramolecular self-assembly and postcalcination strategy. This novel catalyst demonstrates a remarkable enhancement in activity, achieving 30% conversion and approximate to 100% selectivity toward styrene in ethylbenzene ODH reactions. Notably, its performance surpasses both pure BCNNTs and those hosting Mn nanoparticles. Structural and kinetic analyses unveil a robust interaction between BCNNTs and the Mn component, substantially boosting the catalytic activity of BCNNTs. Furthermore, density functional theory (DFT) calculations elucidate that BCNNTs encapsulated with Mn clusters not only stabilize key intermediates (& horbar;B & horbar;O & horbar;O & horbar;B & horbar;) but also enhance the nucleophilicity of active sites through electron transfer from the Mn cluster to the BCNNTs. This electron transfer mechanism effectively lowers the energy barrier for & horbar;C & horbar;H cleavage, resulting in a 13% improvement in catalytic activity compared to pure BCNNTs. Manganese (Mn) cluster promoters enhance the catalytic activity of borocarbonitride in ethylbenzene oxidative dehydrogenation with approximate to 100% styrene selectivity, superior to these of unmodified and Mn particle-modified borocarbonitride materials, and the nature of activity improvement and reaction mechanism is revealed by combining with structural characterizations and density functional theory calculations. image

Keyword :

borocarbonitride nanotubes borocarbonitride nanotubes heterogeneous catalysis heterogeneous catalysis Mn modfication Mn modfication oxidative dehydrogenation oxidative dehydrogenation strong interaction strong interaction

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GB/T 7714 Zhang, Xuefei , Dai, Xueya , Xie, Zailai et al. Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube [J]. | SMALL , 2024 , 20 (37) .
MLA Zhang, Xuefei et al. "Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube" . | SMALL 20 . 37 (2024) .
APA Zhang, Xuefei , Dai, Xueya , Xie, Zailai , Qi, Wei . Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube . | SMALL , 2024 , 20 (37) .
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Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube EI
期刊论文 | 2024 , 20 (37) | Small
Borocarbonitride Catalyzed Ethylbenzene Oxidative Dehydrogenation: Activity Enhancement via Encapsulation of Mn Clusters inside the Tube Scopus
期刊论文 | 2024 , 20 (37) | Small
Iron carbide nanoparticles encapsulated in guanine-derived carbon for peroxymonosulfate activation SCIE
期刊论文 | 2024 , 338 | SEPARATION AND PURIFICATION TECHNOLOGY
WoS CC Cited Count: 12
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Iron and nitrogen co-doped carbon-based catalysts have garnered significant attention for their efficacy in the degradation of Rhodamine B (RhB), Tetracycline (TC) and other organic pollutants through peroxymonosulfate (PMS) activation. However, designing catalysts with both high activity and abundant active sites has proven challenging, primarily due to the limited understanding of the structure-activity relationship. Herein, we present a straightforward synthesis of iron and nitrogen co-doped carbon nanosheets (FeNC) that exhibit exceptional activity in activating PMS for degradation of RhB and TC. The FeNC material shows robust resistance to interference across a wide pH of 1.5 to 10, resistance to inorganic anions and humic acid (HA). More importantly, the Fe3C nanoparticles are uniformly anchored within the carbon layer, effectively prevent metal leaching. Unlike the traditional sulfate radical-based advanced oxidation processes, our study reveals that non -radical singlet oxygen (1O2) serves as the main reactive oxygen species (ROS) responsible for the degradation processes through quenching tests and electron paramagnetic resonance (EPR) analysis. Structural characterizations and spectroscopic study indicate that the potential active sites on FeNC, namely C--O, graphitic and pyridinic nitrogen play an important role in this degradation. Particularly noteworthy is the discovery that Fe3C species, present in the FeNC-900/PMS system, also contribute significantly to the degradation of TC. Moreover, we have proposed potential degradation pathways for RhB and TC based on the results of liquid chromatograph mass spectrometer (LC -MS) measurement. Overall, this study offers novel insights into the development of heterogeneous iron and nitrogen co-doped carbon-based catalysts for advanced oxidation processes (AOPs) via PMS activation.

Keyword :

Degradation Degradation Guanine Guanine Iron and nitrogen co-doped Iron and nitrogen co-doped Rhodamine B Rhodamine B Tetracycline Tetracycline

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GB/T 7714 Li, Shuchun , Ke, Yiling , Zhang, Xuefei et al. Iron carbide nanoparticles encapsulated in guanine-derived carbon for peroxymonosulfate activation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 338 .
MLA Li, Shuchun et al. "Iron carbide nanoparticles encapsulated in guanine-derived carbon for peroxymonosulfate activation" . | SEPARATION AND PURIFICATION TECHNOLOGY 338 (2024) .
APA Li, Shuchun , Ke, Yiling , Zhang, Xuefei , Wu, Shuchang , Xie, Zailai . Iron carbide nanoparticles encapsulated in guanine-derived carbon for peroxymonosulfate activation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 338 .
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Iron carbide nanoparticles encapsulated in guanine-derived carbon for peroxymonosulfate activation Scopus
期刊论文 | 2024 , 338 | Separation and Purification Technology
Hierarchical boroncarbonitride nanosheets as metal-free catalysts for enhanced oxidative dehydrogenation of propane SCIE
期刊论文 | 2024 , 288 | CHEMICAL ENGINEERING SCIENCE
WoS CC Cited Count: 2
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Boroncarbonitrides (BCNs) are recently developed new catalytic system for efficient oxidative dehydrogenation (ODH) of alkanes to alkenes. Herein, a series of novel hierarchical BCN materials are synthesized using asymmetric hydrogen bonds self -assembly between methylguanidine and boric acid, along with ammonia deposition. The XRD, S(T)EM, and XPS characterizations confirm the presence of ternary BCN solid solution covered by small serrated -like BCN nanosheets materials in the 2D plates. The unique hierarchical structure and developed mesoporosity of the BCN material contribute to its outstanding catalytic performance. The optimal catalyst delivers robust catalytic performance and long-term stability in the ODH of propane reaction with propylene and total olefin selectivity of 74.7% and 89.7% at a stable 20.4% propane conversion, much better than BCN sheets and h-BN catalyst. Results show that the in -situ formation of suitable amounts of amorphous BOX species within the BCN structure, along with the maintenance of the 2D skeleton at elevated temperatures, is a significant contribution in the enhanced ODH reactivity. Moreover, density functional theory calculation also demonstrates that the presence appropriate carbon content in BCN catalysts can significantly promote the ODH of propane reaction.

Keyword :

BCN catalysts BCN catalysts Hierarchical nanosheets Hierarchical nanosheets Oxidative dehydrogenation of propane Oxidative dehydrogenation of propane

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GB/T 7714 Wang, Guangming , Hu, Aoxue , Duan, Qiwei et al. Hierarchical boroncarbonitride nanosheets as metal-free catalysts for enhanced oxidative dehydrogenation of propane [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 288 .
MLA Wang, Guangming et al. "Hierarchical boroncarbonitride nanosheets as metal-free catalysts for enhanced oxidative dehydrogenation of propane" . | CHEMICAL ENGINEERING SCIENCE 288 (2024) .
APA Wang, Guangming , Hu, Aoxue , Duan, Qiwei , Cui, Longji , Chen, Ziyi , Huang, Zelong et al. Hierarchical boroncarbonitride nanosheets as metal-free catalysts for enhanced oxidative dehydrogenation of propane . | CHEMICAL ENGINEERING SCIENCE , 2024 , 288 .
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Hierarchical boroncarbonitride nanosheets as metal-free catalysts for enhanced oxidative dehydrogenation of propane Scopus
期刊论文 | 2024 , 288 | Chemical Engineering Science
N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity SCIE
期刊论文 | 2024 , 486 | CHEMICAL ENGINEERING JOURNAL
WoS CC Cited Count: 3
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Carbon materials have stimulated tremendous interest in oxidative dehydrogenation (ODH) of alkane to olefin molecules at low temperature. Unfortunately, its further development has been seriously hindered due to the unsatisfactory catalytic performance. To tackle these challenges, nitrogen and phosphorus codoped hollow carbon prisms (NPC) are designed with controllable surface functional groups through supramolecular preassembly and substitution reaction from guanine and hexachlorotriphosphazene. The resultant catalysts can achieve both high catalytic activity (63 % conversion) and styrene selectivity (90 %) in ODH of ethylbenzene, outerperforming previous reported carbon-based catalysts. Structural characterizations, kinetics measurements and theoretical results unravel that nitrogen doping can promote nucleophilicity of -C--O, thus improving the catalytic activity. The phosphorus doping not only changes reaction rate-determining step from activation of O2 in N-doped carbon to activation of -C-H bond of EB in N,P-codoped carbon, but also inhibits the formation of electrophilic oxygen species, which enhances selectivity of styrene. The current work provides a facile strategy for preparation of functional NPC catalyst and physical-chemical insights on the structure-activity relationship of NPC catalysts, paving the way for further development of the highly efficient non-metallic catalytic systems.

Keyword :

Carbon prism Carbon prism Catalytic mechanism Catalytic mechanism Guanine Guanine Heteroatom doping Heteroatom doping Oxidative dehydrogenation Oxidative dehydrogenation

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GB/T 7714 Zhang, Xuefei , Hu, Aoxue , Li, Shuchun et al. N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 486 .
MLA Zhang, Xuefei et al. "N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity" . | CHEMICAL ENGINEERING JOURNAL 486 (2024) .
APA Zhang, Xuefei , Hu, Aoxue , Li, Shuchun , Feng, Ruiping , Huang, Shuping , Xie, Zailai . N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity . | CHEMICAL ENGINEERING JOURNAL , 2024 , 486 .
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N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity Scopus
期刊论文 | 2024 , 486 | Chemical Engineering Journal
N, P codoped hollow carbon prisms for efficient oxidative dehydrogenation reaction with both enhanced activity and selectivity EI
期刊论文 | 2024 , 486 | Chemical Engineering Journal
Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation SCIE
期刊论文 | 2024 , 437 | JOURNAL OF CATALYSIS
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Abstract :

The utilization of Pt-based catalysts in the catalytic conversion of propane to propylene (PDH) remains pivotal in industrial processes. However, the scarcity of Pt and its high cost necessitates innovative strategies to enhance Pt dispersion and catalytic performance. In this study, we present an approach involving the in-situ incorporation of Zn cations into Silicalite-1 (S-1) zeolite through one-pot hydrothermal synthesis, which facilitates the anchoring of atomically dispersed Pt atoms. The synthesized 0.5Pt/Zn@S-1 catalyst exhibits the dehydrogenation performance of 25 % propane for approximately 34.2 % propane conversion and 95.1 % propylene selectivity (propylene turnover rate of 14.2 s-1 ), coupled with robust stability of up to 60 h without distinct deactivation under a WHSV of 49.1 h-1 . Comprehensive characterizations reveal the formation of atomically dispersed Pt-Zn catalytic sites. The Pt atoms are incorporated with the Zn cations and dense silanol nests. This unique configuration facilitates a synergistic effect between Pt and Zn for dehydrogenation.

Keyword :

Deactivation Deactivation Dehydrogenation Dehydrogenation Platinum Platinum Propane Propane Propylene Propylene Silanol nest Silanol nest Sintering Sintering Synergistic effect Synergistic effect Zeolite Zeolite Zinc Zinc

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GB/T 7714 Wang, Peng , Chen, Rong , Liao, Huafei et al. Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation [J]. | JOURNAL OF CATALYSIS , 2024 , 437 .
MLA Wang, Peng et al. "Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation" . | JOURNAL OF CATALYSIS 437 (2024) .
APA Wang, Peng , Chen, Rong , Liao, Huafei , Lin, Hongqiao , Xu, Yuanjie , Liu, Bo et al. Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation . | JOURNAL OF CATALYSIS , 2024 , 437 .
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Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation EI
期刊论文 | 2024 , 437 | Journal of Catalysis
Zinc cations incorporated in Silicalite-1 zeolite assist in anchoring atomically dispersed platinum catalyst for boosted and robust propane dehydrogenation Scopus
期刊论文 | 2024 , 437 | Journal of Catalysis
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