Journal of the Energy Institute, Год журнала: 2024, Номер 116, С. 101739 - 101739
Опубликована: Июль 4, 2024
Язык: Английский
Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114010 - 114010
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
3
ACS Catalysis, Год журнала: 2024, Номер 14(14), С. 10427 - 10436
Опубликована: Июнь 26, 2024
The direct oxidation of methane into ethanol with high productivity under mild conditions is a grand challenge. We report the development mixed cerium/zirconium metal–organic framework (MOF) nodes-supported mononuclear nickel(II)-hydroxyl species [Cex/Zry–UiO–Ni(OH)] as efficient heterogeneous catalysts for transformation ethanol. Ni2+ ion in Cex/Zry–UiO–Ni(OH) MOFs coordinates μ4–O–, one hydroxy group, and two neutral carboxylate oxygens, which are directly bonded to Ce4+ at metal-oxo nodes. spectroscopic control experiments theoretical calculations reveal that precise composition mixed-metal node, isolation mono Ni-hydroxyl cooperative Ni–Ce active sites confined within porous UiO-MOFs promote facile C–H activation 80 °C, leading formation •CH3 radicals subsequent C–C coupling pores produce an extraordinarily yield 6521 mmol gNi–1 >93% selectivity, outperforming most current reports. Our mechanistic investigation suggests proceeds via dual catalytic cycle, doping MOF's node proximity between ions lead reversible Ce–Ocarboxylate bond dissociation Ni–(μ2–OH)–Ce formation, key radical turnover limiting step. This work highlights importance metal-MOFs designing well-defined heterobimetallic-supported valorization light alkanes catalysis.
Язык: Английский
Процитировано
14
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(16), С. 5310 - 5318
Опубликована: Янв. 1, 2024
Mg–Au bimetallic functional sites modified In 2 O 3 nanoflowers hybrid photocatalysts with exceptional activities are successfully fabricated, attributed to the enhanced CO adsorption and activation ability optimized band gap structure.
Язык: Английский
Процитировано
8
Chemical Engineering Journal, Год журнала: 2024, Номер 489, С. 151283 - 151283
Опубликована: Апрель 15, 2024
Язык: Английский
Процитировано
6
Science Advances, Год журнала: 2024, Номер 10(36)
Опубликована: Сен. 4, 2024
Photothermal catalysis effectively increases catalytic activity by using the photothermal effect of metal nanomaterials; however, combination strong light absorption and high performance remains a challenge. Here, we demonstrate hexagonal ~5-nanometer-thick palladium antimony (chemical formula as Pd 8 Sb 3 ) nanosheets (NSs) that exhibit within full spectral localized surface plasmon resonance (LSPR) effects in visible region. Such LSPR features lead to effects, NSs aqueous dispersion enables enhanced methane (CH 4 conversion formaldehyde (HCHO) under full-spectrum irradiation at 1.7 watts per square centimeter, leading selectivity ~98.7%, productivity ~665 millimoles gram catalyst, ~700 times higher than NSs. Mechanism investigations suggest different radicals were generated on (·OH) (·O 2 − ), where displays stronger adsorption strength CH facilitates oxidation HCHO. Besides, ability therapy for breast cancer.
Язык: Английский
Процитировано
6
Environmental Research, Год журнала: 2024, Номер 252, С. 119081 - 119081
Опубликована: Май 5, 2024
Язык: Английский
Процитировано
5
Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)
Опубликована: Окт. 17, 2024
The direct conversion and efficient utilization of methane pose a critical scientific challenge. Indirect activation via reactive oxygen species (ROS) offers high probability contact with efficiency under mild conditions. However, reported product yields are suboptimal due to challenges in activating facilitating mass transfer suspension systems. We propose the use contact-electro-catalysis (CEC), employing polydopamine (PDA) as catalyst that undergoes electron ultrasound, generating ROS drives partial oxidation (POM). Corresponding experimental results indicate CH
Язык: Английский
Процитировано
4
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Фев. 27, 2025
Photooxidation of CH4 to value-added chemicals with high selectivity offers a promising pathway drive the rational utilization natural gas resources renewable energy under mild conditions. However, owing poor chemoselectivity reactive oxygen radical formation and consecutive side reactions primary products, synthesis peroxide directly from oxidation remains challenging. Here, we report single-atom ruthenium oxide-doped ZnO as highly selective photocatalyst for aerobic CH3OOH. Under optimal conditions, CH3OOH rate over Ru1Ox/ZnO reaches 321 μmol gcat–1 h–1 90.9% simulated solar irradiation. Mechanistic studies reveal that generation •OOH radicals via reduction ability prevent secondary are main advantages Ru1Ox/ZnO, accounting remarkable CH4. The Ru oxide/ZnO catalyst also exhibits alkyl hydroperoxide in photocatalytic low paraffins, which provides solution prepare single-step hydrocarbon substrates.
Язык: Английский
Процитировано
0
EcoEnergy, Год журнала: 2025, Номер unknown
Опубликована: Фев. 26, 2025
ABSTRACT Methane, recognized as a promising substitute for conventional fossil fuels due to its abundant availability, low cost, and high energy density, can be converted into value‐added products, providing sustainable energy–carbon utilization approach. However, inert molecules require significant C–H bond activation. Photocatalytic conversion offers an effective mild‐condition solution, reducing thermocatalysis demands enhancing activation efficiency selective chemical production. This review systematically arranges photocatalytic mechanisms, categorizes discusses challenges, prospects, solutions methane photocatalysis development.
Язык: Английский
Процитировано
0
Separation and Purification Technology, Год журнала: 2024, Номер 354, С. 129064 - 129064
Опубликована: Авг. 8, 2024
Язык: Английский
Процитировано
3