José I. Martínez
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View article: Tuning Core Flexibility and Curvature in Azine-Linked Covalent Organic Frameworks for Attomolar-Level Impedimetric Sensing of Glucose
Tuning Core Flexibility and Curvature in Azine-Linked Covalent Organic Frameworks for Attomolar-Level Impedimetric Sensing of Glucose Open
Glucose serves as a key biomarker of metabolic health, requiring continuous and reliable monitoring. Nonenzymatic impedimetric sensors have emerged as a promising alternative to enzymatic glucose sensors, which dominate current clinical pr…
View article: High-yield synthesis of Fe-NC electrocatalysts using Mg2+ templating and Schiff-base porous organic polymers
High-yield synthesis of Fe-NC electrocatalysts using Mg2+ templating and Schiff-base porous organic polymers Open
The decoupled synthesis of Fe-NC single-site electrocatalysts mediated by Lewis-acids enables high active site density and utilization. However, current approaches often rely on small organic molecules and suffer from low synthesis yields …
View article: Giant Fully Fused Tetrapodal Rylenimides: Design, Synthesis and Optoelectrochemical Characterization via Alkyl Chain and Core Engineering Strategies
Giant Fully Fused Tetrapodal Rylenimides: Design, Synthesis and Optoelectrochemical Characterization via Alkyl Chain and Core Engineering Strategies Open
In this work, we report the synthesis and comprehensive characterization of a new series of fully fused three-dimensional rylenimide-based derivatives featuring extended π-conjugation through core-fusion strategies and tailored side-chain …
View article: Surface Engineered 2D‐β‐ketoenamine Covalent Organic Framework for Superior Dechlorination via Hybrid Capacitive Deionization
Surface Engineered 2D‐β‐ketoenamine Covalent Organic Framework for Superior Dechlorination via Hybrid Capacitive Deionization Open
To prevent a global water shortage crisis, we must innovate to desalinate seawater. Hybrid capacitive deionization (HCDI), an energy‐efficient desalination method, depends on electrode materials. Removing chloride ions (Cl − ), a key salin…
View article: Moiré‐Induced Enhanced Hydrogen Adsorption on Graphene
Moiré‐Induced Enhanced Hydrogen Adsorption on Graphene Open
The periodic patterning induced by moiré superstructures enables the synthesis of spatially functionalized graphene surfaces owing to changes in the local reactivity of the material. However, quantitative characterization of the effect of …
View article: High-yield synthesis of Fe-NC electrocatalysts using Mg2+ templating and Schiff-base porous organic polymers
High-yield synthesis of Fe-NC electrocatalysts using Mg2+ templating and Schiff-base porous organic polymers Open
The decoupled synthesis of Fe-NC single-site electrocatalysts, where active sites are imprinted in a porous carbon through Lewis-acid mediated pyrolysis followed by cation exchange, enables high active site density and utilization. However…
View article: Triple energy conversion cascade in a densely charged redox active covalent organic actuator
Triple energy conversion cascade in a densely charged redox active covalent organic actuator Open
View article: Influence of the substrate in the on-surface synthesis and air stability of 1D metal-organic oligomers
Influence of the substrate in the on-surface synthesis and air stability of 1D metal-organic oligomers Open
View article: Diastereomeric Configuration Drives an On-Surface Specific Rearrangement into Low Bandgap Non-Benzenoid Graphene Nanoribbons
Diastereomeric Configuration Drives an On-Surface Specific Rearrangement into Low Bandgap Non-Benzenoid Graphene Nanoribbons Open
Stereochemistry, usually associated with the three-dimensional arrangement of atoms in molecules, is crucial in processes like life functions, drug action, or molecular reactions. This three-dimensionality typically originates from sp…
View article: Cyclodehydrogenation of molecular nanographene precursors catalyzed by atomic hydrogen
Cyclodehydrogenation of molecular nanographene precursors catalyzed by atomic hydrogen Open
View article: Enhanced selective gold recovery from e-waste <i>via</i> synergistic hetero-atom controlled quasi-planar benzoxazine-based covalent organic frameworks
Enhanced selective gold recovery from e-waste <i>via</i> synergistic hetero-atom controlled quasi-planar benzoxazine-based covalent organic frameworks Open
A quasi-planar benzoxazine-core-based 2D COF with hetero-atom control achieves excellent Au uptake performance (3467 mg g −1 , >92% selectivity) in e-waste leachate amid 12 competing metal ions.
View article: Atomic Structure of the Au2sn Surface Alloy Grown from Epitaxial Snse
Atomic Structure of the Au2sn Surface Alloy Grown from Epitaxial Snse Open
View article: Influence of the Substrate in the On-surface Synthesis and Air Stability of 1D Metal-Organic Oligomers
Influence of the Substrate in the On-surface Synthesis and Air Stability of 1D Metal-Organic Oligomers Open
The development of applicable functional materials currently stands as one of the main challenges in the field of On-Surface Synthesis. In this direction, it is necessary to understand their stability in real conditions, what it is known a…
View article: Boosting Photoconductivity by Increasing the Structural Complexity of Multivariate Covalent Organic Frameworks
Boosting Photoconductivity by Increasing the Structural Complexity of Multivariate Covalent Organic Frameworks Open
The assessment of the photoconductivity of Donor‐Acceptor (D‐A) ordered bulk heterojunctions is gaining attention for the development of innovative organic semiconductors in optoelectronics. Here, the synthesis of pyrene‐based (D) Covalent…
View article: Single-metal-adatom catalysts for the synthesis of 2D carbon nitride metal-coordinated networks
Single-metal-adatom catalysts for the synthesis of 2D carbon nitride metal-coordinated networks Open
Metal-coordinated networks have been found to be excellent catalyst for environmental purposes, such as green hydrogen generation or photo-degradation of pollutants. Recently, its traditional three-dimensional structure has been extended t…
View article: MOFite: A High‐Density Lithiophilic and Scalable Metal–Organic Framework Anode for Rechargeable Lithium‐Ion Battery
MOFite: A High‐Density Lithiophilic and Scalable Metal–Organic Framework Anode for Rechargeable Lithium‐Ion Battery Open
Developing an anode material that has better performance efficiency than commercial graphite while keeping the features of economic scalability and environmental safety is highly desirable yet challenging. MOFs are a promising addition to …
View article: n-Alkanes formed by methyl-methylene addition as a source of meteoritic aliphatics
n-Alkanes formed by methyl-methylene addition as a source of meteoritic aliphatics Open
Aliphatics prevail in asteroids, comets, meteorites and other bodies in our solar system. They are also found in the interstellar and circumstellar media both in gas-phase and in dust grains. Among aliphatics, linear alkanes (n-Cn
View article: Enhanced Electrocatalysis on Copper Nanostructures: Role of the Oxidation State in Sulfite Oxidation
Enhanced Electrocatalysis on Copper Nanostructures: Role of the Oxidation State in Sulfite Oxidation Open
The influence of surface morphology and the oxidation state on the electrocatalytic activity of nanostructured electrodes is well recognized, yet disentangling their individual roles in specific reactions remains challenging. Here, we inve…
View article: Robust Amide‐Linked Fluorinated Covalent Organic Framework for Long‐Term Oxygen Reduction Reaction Electrocatalysis
Robust Amide‐Linked Fluorinated Covalent Organic Framework for Long‐Term Oxygen Reduction Reaction Electrocatalysis Open
The high energy demand of the evolving world opens the door to develop more sustainable and environmentally friendly energy sources. Oxygen reduction reaction (ORR) is a promising candidate, being the 2e − pathway of great interest for the…
View article: Turn‐On Solid‐State Fluorescent Determination of Zinc Ion by Quinoline‐Based Covalent Organic Framework
Turn‐On Solid‐State Fluorescent Determination of Zinc Ion by Quinoline‐Based Covalent Organic Framework Open
A new quinoline‐based COF (covalent organic framework), obtained by Povarov reaction, containing 2,6‐diisopropylphenyl moieties as substituents over the heterocyclic ring is described for detecting Zn 2+ in aqueous solution. The introducti…
View article: On‐Surface Synthesis of Organolanthanide Sandwich Complexes
On‐Surface Synthesis of Organolanthanide Sandwich Complexes Open
The synthesis of lanthanide‐based organometallic sandwich compounds is very appealing regarding their potential for single‐molecule magnetism. Here, it is exploited by on‐surface synthesis to design unprecedented lanthanide‐directed organo…
View article: Implantation of Gallium into Layered WS<sub>2</sub> Nanostructures is Facilitated by Hydrogenation
Implantation of Gallium into Layered WS<sub>2</sub> Nanostructures is Facilitated by Hydrogenation Open
Bombarding WS 2 multilayered nanoparticles and nanotubes with focused ion beams of Ga + ions at high doses, larger than 10 16 cm −2 , leads to drastic structural changes and melting of the material. At lower doses, when the damage is negli…
View article: Tailoring the Electron‐Deficient Central Core on Fused‐Ring Nonfullerene Acceptors: Deciphering the Relationships Between Structure, Property, and Photovoltaic Performance
Tailoring the Electron‐Deficient Central Core on Fused‐Ring Nonfullerene Acceptors: Deciphering the Relationships Between Structure, Property, and Photovoltaic Performance Open
In the field of organic solar cells, organic semiconductors with Y6‐based chemical structure and their corresponding quinoxaline‐based assemblies are settled down as promising materials in the field of OSCs. However, the chemical structure…
View article: Hydrogen-Induced Reduction Improves the Photoelectrocatalytic Performance of Titania
Hydrogen-Induced Reduction Improves the Photoelectrocatalytic Performance of Titania Open
One of the main challenges to expand the use of titanium dioxide (titania) as a photocatalyst is related to its large band gap energy and the lack of an atomic scale description of the reduction mechanisms that may tailor the photocatalyti…
View article: Cyclodehydrogenation catalyzed by atomic hydrogen
Cyclodehydrogenation catalyzed by atomic hydrogen Open
Atomically precise synthesis of nanographenes and graphene nanoribbons on semiconductors and insulators has been a formidable challenge. In particular, the metallic substrates needed to catalyze cyclodehydrogenative planarization reactions…
View article: Commissioning and initial operation of the Isotope Production Facility at the Los Alamos Neutron Science Center (LANSCE).
Commissioning and initial operation of the Isotope Production Facility at the Los Alamos Neutron Science Center (LANSCE). Open
The recently completed 100-MeV H{sup +} Isotope Production Facility (IPF) at the LANSCE will provide radioisotopes for medical research and diagnosis, for basic research and for commercial use. A change to the LANSCE accelerator facility a…
View article: Transition mechanism of the coverage-dependent polymorphism of self-assembled melamine nanostructures on Au(111)
Transition mechanism of the coverage-dependent polymorphism of self-assembled melamine nanostructures on Au(111) Open
The transition mechanism of the polymorphism of self-assembled melamine nanostructures on Au(111) is purely coverage-dependent.
View article: 2D Co‐Directed Metal–Organic Networks Featuring Strong Antiferromagnetism and Perpendicular Anisotropy
2D Co‐Directed Metal–Organic Networks Featuring Strong Antiferromagnetism and Perpendicular Anisotropy Open
Antiferromagnetic spintronics is a rapidly emerging field with the potential to revolutionize the way information is stored and processed. One of the key challenges in this field is the development of novel 2D antiferromagnetic materials. …
View article: ECOLOGY OF NON–MARINE OSTRACODA FROM LA FE RESERVOIR (EL RETIRO, ANTIOQUIA) AND THEIR POTENTIAL APPLICATION IN PALEOENVIRONMENTAL STUDIES
ECOLOGY OF NON–MARINE OSTRACODA FROM LA FE RESERVOIR (EL RETIRO, ANTIOQUIA) AND THEIR POTENTIAL APPLICATION IN PALEOENVIRONMENTAL STUDIES Open
Littoral macrophytes from La Fe Reservoir (El Retiro, Antioquia) were sampled for ostracods during June and September 2008. This allowed the identification of four genera and six species of ostracods belonging to the Cyprididae and Candoni…
View article: Nanotube‐Like Electronic States in [5,5]‐C<sub>90</sub> Fullertube Molecules.
Nanotube‐Like Electronic States in [5,5]‐C<sub>90</sub> Fullertube Molecules. Open
Fullertubes, that is, fullerenes consisting of a carbon nanotube moiety capped by hemifullerene ends, are emerging carbon nanomaterials whose properties show both fullerene and carbon nanotube (CNT) traits. Albeit it may be expected that t…