Institut Català d'Investigació Química (ICIQ): Recent submissions
Now showing items 21-40 of 1240
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) ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
Customizable 3D-Printed SiC Photocatalysts for Microplastic Capture and Degradation under Flow and Static Conditions
The persistence of microplastics (MPs) in aquatic systems endangers both ecosystems and human health. Among emerging strategies, photocatalytic degradation using semiconductors is a promising approach to MP remediation. ...
Assessment of the Association Constant of the CO2@CB[6] Complex Combining 1H and 13C NMR Spectroscopic Titrations
A methodology for assessing the association constants of a molecular host binding a 13C-enriched gaseous guest, that is, 13CO2, using NMR spectroscopic titrations is described. The method relies on injecting the gaseous ...
Hybrid Molecular Photoanodes for Water Oxidation Based on Electropolymerized Cu Macrocyclic Complexes on BiVO4-WO3
The conversion of sunlight into chemical energy provides a sustainable alternative to fossil fuels that can significantly contribute to the mitigation of climate change. In this regard, water splitting with sunlight using ...
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 ...
Carbonised porous silicon as scaffold and sensor for the electrochemical detection and characterisation of bacterial biofilm growth
The use of carbonised porous silicon (C-pSi) substrates as both scaffolds and electrodes for the electrochemical detection and characterisation of bacterial biofilm growth is reported for the first time. Three types of ...
Understanding the Deactivation of an Fe Single-Atom on Nitrogen-Doped Carbon Catalysts in Oxygen Reduction Reaction
Single-atom catalysts (SACs) have gained attention as potential replacements for the platinum-group metals (PGMs) in the oxygen reduction reaction (ORR), a fundamental reaction in renewable energy technologies. Among SACs, ...
Thermometric Based-Microswimmers with Chemical and Optical Engines
The development of microswimmers with integrated sensing elements opens new avenues for advanced functionalities in microscale environments. Among these, temperature sensing is critical for applications ranging from ...
