ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(18), P. 21516 - 21526
Published: Sept. 6, 2024
Language: Английский
Reaction Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 9(6), P. 1292 - 1312
Published: Jan. 1, 2024
Propane dehydrogenation (PDH) has become an important strategy to address the ever-increasing global demand for propene.
Language: Английский
Citations
8
New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(23), P. 10607 - 10615
Published: Jan. 1, 2024
Moderate Co-promoted reduction of Fe 2 O 3 to active 4 for high transformation CO (C H 8 ) C 6 through accelerating RWGS.
Language: Английский
Citations
5
Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 84, P. 102848 - 102848
Published: June 1, 2024
Extensive research efforts have been devoted to using greenhouse gas CO2 in upgrading bio-derived feedstock value-added chemicals the oxidative dehydrogenation route (CO2-ODH) with low-energy input. To realize effective deployment of CO2-ODH at an industrial scale, it is imperative advance development robust catalysts that can selectively catalyze C-H over C-C bonds, while simultaneously demonstrating thermodynamic stability coke formation or sintering. Transition metal-based exhibit significant potential for being highly selective and reactive simultaneous conversion hydrocarbons, owing their surface reducibility, well-balanced acid/base properties, dynamic oxygen storage capacity. stimulate further optimization, it's crucial discover key design principles, trends descriptors, strategies fine-tune catalyst materials. This review comprehensively examines experimental theoretical aimed pinpointing catalytic characteristics affect selectivity transition mono, bi, multimetal oxides. It covers aspects like combinations active metals supports, effects composition alloying, interfacial structures, adsorption strengths, dynamics in-situ restructuring, defect creation, morphology, electronic among others. We wrap up by suggesting approaches overcome present obstacles reactor technology, potentially bridging lab-to-industry gap this domain.
Language: Английский
Citations
5
Journal of Chemical Technology & Biotechnology, Journal Year: 2025, Volume and Issue: unknown
Published: April 20, 2025
Abstract BACKGROUND Developing highly stable and cost‐effective catalysts for CO 2 ‐mediated oxidative dehydrogenation of propane (CO ‐ODP) is critical to advancing sustainable propylene production. While ZrO ‐based supports offer promising thermal stability tunable acid–base properties, integrating transition metal oxides (TMO x ) as active sites optimize activation conversion remains underexplored. RESULTS Here, we systematically design a series non‐precious TMO /ZrO (TM = Cr, Fe, Co, Ni, Cu, Zn) via coprecipitation–gel method uncover structure–activity relationships. Among them, CrO emerges the optimal candidate, achieving notable C 3 H 8 /CO conversions 46.24%/38.27% 86.49%/27.03% 6 selectivity/yield at 600 °C. Characterization reveals that coexistence Cr 3+ /Cr 4+ species (XPS) mixed‐phase O /CrO (XRD/Raman) creates abundant oxygen vacancies enhances adsorption (TPD), while HRTEM/EDX confirms uniform dispersion on . Further optimizing Cr/Zr ratio 1:1 maximizes site exposure preventing excessive aggregation, thereby balancing redox activity structural stability. CONCLUSIONS This work elucidates how tailored interfaces leverage synergistic electronic geometric effects drive ‐ODP efficiency, offering blueprint designing high‐performance alkane valorization. © 2025 Society Chemical Industry (SCI).
Language: Английский
Citations
0
CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2024, Volume and Issue: 65, P. 40 - 69
Published: Oct. 1, 2024
Language: Английский
Citations
3
Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(34), P. 15023 - 15037
Published: July 24, 2024
Compared to energy-intensive propane direct dehydrogenation, oxidative dehydrogenation by CO2 (CO2–ODHP) significantly reduces the energy consumption of alkane process and eliminates CO2. However, CO2–ODHP faces challenges low reaction efficiency at temperatures poor product selectivity high in conventional mode. Microwave catalysis offers a new approach achieve efficient reactions lower further reduce consumption, but key is develop high-performance microwave catalysts. Cheap nontoxic ZnO-based catalysts have emerged as promising candidates, loss active components severe due reduced ZnO evaporated metal Zn during reaction. Herein, we developed suppressed site doping Y into ZnO/Silicalite-1 novel catalyst for CO2–ODHP. The 5Zn–Y/Silicalite-1 + SiC showed performance with C3H8 conversion 76% C3H6 89% under irradiation 550 °C. was only 29% reactions. Among low-cost base catalysts, its activity level one highest. can effectively gather improve utilization efficiency. achieved better (27%) than (17%). Moreover, has good stability performance, which attributed reduction 38.79% after doping. activation from 98.3 57.4 kJ/mol irradiation. more energy-efficient method compared same conversion. This highlights great potential advantages multiphase catalytic
Language: Английский
Citations
2
Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(38), P. 16269 - 16284
Published: Sept. 12, 2024
Propane dehydrogenation reaction (PDH) is an extremely attractive way to produce propylene; however, the catalysts often lead byproduct formation and suffer from deactivation. This research focuses on development of efficient Pt/Sn-based shaped by utilizing Mg-modified mesoporous silica, sepiolite (natural SiMgO
Language: Английский
Citations
2
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 159104 - 159104
Published: Dec. 1, 2024
Language: Английский
Citations
1
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(18), P. 21516 - 21526
Published: Sept. 6, 2024
Language: Английский
Citations
0