The review discusses defect and interface engineering for e-NRR electrocatalysts, emphasizing active sites and intrinsic mechanisms. It highlights the potential strategies to develop more advanced NRR electrocatalysts, promoting the creation of more efficient catalysts for electrochemical nitrogen reduction.
A joint research team revealed the mechanism underlying the formation of the first carbon-carbon (C-C) bond during the methanol-to-olefins (MTO) process. They detected surface ethoxy species, a critical intermediate containing the initial C-C bond, and employed theoretical calculations to predict its formation.
A newly developed LDH-based composite membrane enhances AZIFB performance by improving selectivity and hydroxide ion conductivity. The study achieved an operating current density of 200 mA cm‒‒, along with high energy efficiency of 82.36%.
A team led by Prof. Peng Wu designed a structured, binder-free MWW-type titanosilicate catalyst that achieves high PO selectivity under mild reaction conditions, with a lifetime of 2400 hours and low solvent consumption.
Researchers developed Ru1/NC SAC, showcasing improved catalytic activity and selectivity in reductive amination reactions. The single-atom dispersion and coordination environment play crucial roles in determining the catalytic performance.
A bioinspired approach to C2 prenylation of indoles has been developed, enabling the regioselective synthesis of tryptophol and tryptamine derivatives. The method uses cheap tert-prenol as a precursor and Lewis acid AlCl3 as a catalyst, demonstrating high selectivity.
Researchers developed a novel solar energy-driven method to produce ethylene glycol (EG) from methanol, offering a sustainable and clean alternative. The catalyst, nitrogen-doped tantalum oxide, demonstrated high activity and stability for EG production, making it an environmentally friendly candidate for industrial applications.
Researchers designed a Cu-Pd bimetallic electrocatalyst that lowers the energy barrier of C2 product generation, resulting in a 50.3% C2 Faradaic efficiency. The catalyst exploits the benefits of both Cu (low energy barrier) and Pd (ultrafast kinetics), addressing CO2 conversion limitations.
Research team from Shaanxi Normal University investigates the effect of alkaline metal cations on electrocatalytic CO2 reduction reaction using Fe porphyrins. The results show that adding Na+ and K+ ions significantly improves catalytic activity, with K+ enhancing currents more effectively.
Researchers developed a new method to generate syngas from biopolyols using photocatalytic biomass conversion at room temperature, exhibiting high efficiency and selectivity. The catalyst featuring surface sulfate ions increased electron-proton transfer, promoting syngas production with 9-fold higher CO generation rate.
Researchers at Dalian Institute of Chemical Physics revealed oxygen production from the three-body photodissociation of water molecule. Approximately 20% of H2O photoexcitation events resulted in O atoms, which can recombine to form O2.
Dead lithium, comprising active and inactive Li components, leads to reduced cycle life in LIBs. Researchers propose design principles to minimize dead lithium formation for higher Coulombic efficiency.
Researchers stabilized electrochemical interfaces using boron Lewis acids, resulting in ultralow leak current and improved cyclic stability. The study demonstrates potential for designing high-performance boron-doped carbon materials towards energy storage applications.
A new heterogeneous coupling catalyst for OCM has been developed, achieving a C2 yield of 10.9% at low temperatures. The catalyst's surface coupling mechanism controls the formation of C2 species, increasing selectivity and yield.
Researchers designed a nanodendrite Pt-Cu alloy electrocatalyst with high-index surfaces and graded composition, achieving excellent mass and area activities for oxygen reduction reaction. The catalyst's unique morphology and composition provide a high specific surface area to improve Pt utilization and enhance ORR activity.
Researchers at Dalian Institute of Chemical Physics developed a dual-bed catalyst that achieves highly efficient and selective conversion of syngas to gasoline-range liquid hydrocarbons. The catalyst showed excellent stability, with selectivities of C5-11 and C3-11 in the hydrocarbon products reaching 80.6% and 98.2%, respectively.
Researchers have developed a new catalyst for the low-temperature hydrogenation of CO2 to methanol with high activity and selectivity. The sulfur vacancy-rich few-layered MoS2 catalyst achieves 94.3% methanol selectivity at 180°C, outperforming commercial catalysts.
Researchers have identified the metallic state of Ag nanoclusters during oxidative dispersion, revealing a transitional state at high temperatures. The study used in situ imaging methods to demonstrate the dynamic dispersion and redispersion of supported metal catalysts.
Researchers have successfully probed electronic angular momentum to a chemical reaction at the quantum state-resolved level, offering a detailed understanding of molecular crossed beam experiments and theoretical simulations. This breakthrough reveals subtle influences of electronic angular momentum on chemical product distributions.
Researchers developed a method to suppress phase segregation in large perovskite single crystals, yielding state-of-the-art devices with long carrier lifetime and high charge mobility. The resulting photodetectors exhibited high responsivity, photoconductive gain, and fast response speed, paving the way for novel imaging applications.
A research team has proposed new testing standards for particulate photocatalysts in solar fuel production, aiming to improve the efficiency and reliability of this technology. The standards will provide a reliable guide for large-scale implementation and further promote research advances in the field.
Researchers directly observed C+S2 product channel from CS2 photodissociation using Dalian Coherent Light Source. The study provided evidence for the origin of interstellar medium S2 fragments and demonstrated that they could be generated from CS2 photodissociation
Researchers at Dalian Institute of Chemical Physics successfully synthesized bio-based Methylcyclopentadiene through direct hydrodeoxygenation of 3-methylcyclopent-2-enone derived from cellulose. The process achieved a high carbon yield of 70% and opens up a new horizon for the production of valuable products.
A research team from Dalian Institute of Chemical Physics regenerates deactivated catalysts in the methanol-to-olefins (MTO) process by transforming coke to active intermediates. This approach promotes light olefin formation and recovers catalyst activity, achieving high selectivity rates.