Institut Català d'Investigació Química (ICIQ): Envíos recientes
Mostrando ítems 61-80 de 1286
Autonomous catalysis research with human–AI–robot collaboration
Catalysis is essential to modern chemical manufacturing and environmental sustainability. Yet, traditional catalyst discovery remains slow, resource-intensive and constrained by human-centred trial-and-error workflows. The ...
EDA Complex-Driven Desaturation of Heterocyclic Carbonyl Compounds Enabled by HFIP
Recently, electron donor–acceptor (EDA) complex-mediated organic synthetic strategies have emerged as powerful tools for diverse bond-forming transformations; however, their efficiency often diminishes when ionic reactants ...
Enabling a Diversity-Oriented Catalytic Atom Looping of a Biobased Polycarbonate
Herein, it is demonstrated that biobased poly(menthene carbonate) (PMC) can be conveniently used to enable catalysis-promoted atom looping thereby creating functionalized synthons and new types of repolymerizable monomers. ...
A Guide to Recognizing Your Electrochemical Impedance Spectra: Revisions of the Randles Circuit in (Bio)sensing
Electrochemical impedance spectroscopy (EIS) is a highly versatile electrochemical technique capable of discretizing each electrochemical parameter in complex systems by employing a broad frequency spectrum. When EIS is ...
Mechanistic Insights into the Light-Driven Difunctionalization of Alkenes with a Sulfonyl-Based Reagent: A Catalyst-Free Approach
Visible-light-mediated difunctionalization of nonactivated alkenes offers a sustainable and efficient strategy for constructing diverse molecular frameworks relevant to medicinal chemistry, polymer science, and synthesis ...
Unraveling the Dichotomy Exerted by Boron Reagents in Site-Selective Functionalization of C(sp2)– and C(sp3)–OMe Bonds
Although C(sp2)– and C(sp3)–OMe bonds are arguably the simplest and most atom-economical derivatives in the alcohol series, these linkages have rarely been utilized as coupling partners in the context of metal-catalyzed ...
Exploring copper β-diketiminate complexes for heterogeneous ammonia oxidation anchored on graphitic surfaces via CH–π and π–π interactions
Ammonia is a compelling candidate for a carbon-free energy carrier, offering potential applications as both a hydrogen vector and a fuel. Unlocking these applications requires the development of efficient ammonia oxidation ...
pH-Sensitive and Self-Regenerative Honeycomb Polymer Membrane-Electrode Assembly for CO2 Reduction: Shifting Selectivity toward C2 Molecules
The electrochemical CO2 reduction reaction (CO2RR) selectivity toward C2 molecules presents several challenges, ranging from the chemical nature of catalysts to the hydrophobization of electrodes. In this study, a simple ...
On-surface synthesis of oxygen-doped analogues of higher acenes
We report the on-surface synthesis of furanoacenes on Au(111). Based on the combination of bond-resolved scanning tunneling microscopy (BR-STM), scanning tunneling spectroscopy (STS) and density functional theory (DFT) ...
Regiodivergent Deuteration of Pyridine-Based Heterocycles
Herein, we describe a regiodivergent deuteration of pyridotriazoles under mild conditions. Site-selective deuteration can be tuned, controlled, and switched by a subtle interplay of the base and solvent utilized. Given the ...
Nafion membranes for power generation from physiologic ion gradients
Creatures such as torpedo rays and electric eels showcase the exceptional ability to convert ionic gradients inside their bodies into powerful electrical discharges. In the future, artificial power units capable of reproducing ...
Polymer-based solid electrolyte interphase for stable lithium metal anodes
The uncontrolled formation of a heterogeneous solid electrolyte interphase (SEI) and the growth of dendrites prevent the use of lithium metal anodes in Li-ion batteries. Possible strategies addressing these problems involve ...
Microenvironment effects in electrochemical CO2 reduction from first-principles multiscale modelling
Electrochemical CO2 reduction is expected to become a key player in net-zero technologies, yet its industrial implementation is currently limited. Improvements based on fine-tuning microenvironments (that is, electrolyte ...
The Potential of Cations for Carbon Dioxide Electroreduction
The electrochemical reduction of carbon dioxide (mathematical equation) allows both the reduction of anthropogenic greenhouse gas emissions and the storage of intermittent renewable energy. While modeling studies have ...
Guest-Induced Conformational Switching in “One Wall” Calix[4]pyrrole Cavitands Functionalized with an Inwardly Directed Carboxylic Acid
We report the design, synthesis, and conformational analysis of two aryl-extended calix[4]pyrrole (AE-C[4]P) cavitands that feature a single methylene bridge and an opposed aromatic bridging wall with an inward-facing ...
Regiodivergent Interrupted Ni-Catalyzed Chain-Walking of Unsaturated Alcohol Side-Chains via Traceless Activating Groups
Herein, we describe a regiodivergent interrupted chain-walking of unsaturated aliphatic alcohols. The method leverages the potential of traceless groups to forge C(sp3)–C(sp3) and C(sp3)–nitrogen bonds at distal methylene ...
Insights into the intricate charge photoaccumulation in a polyoxometalate–bodipy covalent hybrid
Solar fuel generation relies on the catalysis of multielectron, multiproton reactions facilitated in nature by charge accumulation in electron relays like NADPH or hydroquinone. Here, we demonstrate the light-driven charge ...
From β-Dicarbonyl Chemistry to Dynamic Polymers
The past two decades have witnessed an explosion of the use of dynamic bonds in polymer science. The β-dicarbonyl skeleton has emerged as a most versatile platform motif that has been utilized to synthesize a plethora of ...
Flow-Active Liquid Marbles as Microreactors for Photocatalytic Micromotors
Self-propelled micromotors have shown promise for applications in environmental remediation, sensing, and biomedicine. However, assessing their performance in realistic, 3D microenvironments with dynamic boundaries and ...
