| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Portale, Giuseppe, A.
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (57/57 displayed)
- 2024Quasi-2D Lead–Tin Perovskite Memory Devices Fabricated by Blade Coatingcitations
- 2024PbI2 Passivation of Three Dimensional PbS Quantum Dot Superlattices Toward Optoelectronic Metamaterialscitations
- 2023Effect of Dynamically Arrested Domains on the Phase Behavior, Linear Viscoelasticity and Microstructure of Hyaluronic Acid - Chitosan Complex Coacervatescitations
- 2023Tuning the energy transfer in Ruddlesden-Popper perovskites phases through isopropylammonium addition - towards efficient blue emitterscitations
- 2023Nickel Boride (NixB) Nanocrystalscitations
- 2023The human factorcitations
- 2023Addition of Ammonium Thiocyanate Alters the Microstructure and Energetic Landscape of 2D/3D Perovskite Films
- 2022Film formation mechanism uncovered in 2D/3D mixed-dimensional lead halide perovskitescitations
- 2022Confined crystallization and polymorphism in iPP thin filmscitations
- 2022Two-Dimensional Triblock Peptide Assemblies for the Stabilization of Pickering Emulsions with pH Responsivenesscitations
- 2022Nanoscale Networks of Metal Oxides by Polymer Imprinting and Templating for Future Adaptable Electronicscitations
- 2022Crystallization kinetics of melt-mixed 3D hierarchical graphene/ polypropylene nanocomposites at processing-relevant cooling ratescitations
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysics
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysicscitations
- 2021Structural Transitions During Formation and Rehydration of Proton Conducting Polymeric Membranescitations
- 2021Amphipathic Side Chain of a Conjugated Polymer Optimizes Dopant Location toward Efficient N-Type Organic Thermoelectricscitations
- 2021Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopycitations
- 2021Boosting the Thermoelectric Properties of PEDOTcitations
- 2021Crystallization driven boost in fill factor and stability in additive-free organic solar cellscitations
- 2021Molecular Doping Directed by a Neutral Radicalcitations
- 2021Proton conducting ABA triblock copolymers with sulfonated poly(phenylene sulfide sulfone) midblock obtained via copper-free thiol-click chemistry daggercitations
- 2021Revisiting the Mechanism of the Meso-to-α Transition of Isotactic Polypropylene and Ethylene-Propylene Random Copolymerscitations
- 2021Scalable, Template Driven Formation of Highly Crystalline Lead-Tin Halide Perovskite Filmscitations
- 2020Rapid Self-Assembly and Sequential Infiltration Synthesis of High χ Fluorine-Containing Block Copolymerscitations
- 2020Order-disorder transition in supramolecular polymer combs/brushes with polymeric side chainscitations
- 2020Electrical Conductivity of Doped Organic Semiconductors Limited by Carrier-Carrier Interactionscitations
- 2020Systematic Investigation on the Structure-Property Relationship in Isotactic Polypropylene Films Processed via Cast Film Extrusioncitations
- 2020Unraveling the Microstructure of Layered Metal Halide Perovskite Filmscitations
- 2020N-type organic thermoelectricscitations
- 2020Highly Stable Membranes of Poly(phenylene sulfide benzimidazole) Cross-Linked with Polyhedral Oligomeric Silsesquioxanes for High-Temperature Proton Transportcitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskitescitations
- 2019Enhancing the crystallinity and perfecting the orientation of formamidinium tin iodide for highly efficient Sn-based perovskite solar cellscitations
- 2019Improved energy density and charge-discharge efficiency in solution processed highly defined ferroelectric block copolymer-based dielectric nanocompositescitations
- 2019Supramolecular Mimic for Bottlebrush Polymers in Bulkcitations
- 2019Favorable Mixing Thermodynamics in Ternary Polymer Blends for Realizing High Efficiency Plastic Solar Cellscitations
- 2019Chemical Solution Deposition of Ordered 2D Arrays of Room-Temperature Ferrimagnetic Cobalt Ferrite Nanodotscitations
- 2019A Photoaddressable Liquid Crystalline Phase Transition in Graphene Oxide Nanocompositescitations
- 2019Investigation of the Nanoscale Morphology in Industrially Relevant Clearcoats of Waterborne Polymer Colloids by Means of Variable-Angle-Grazing Incidence Small-Angle X-ray Scatteringcitations
- 2019Monitoring morphology evolution within block copolymer microparticles during dispersion polymerisation in supercritical carbon dioxidecitations
- 2018Operando SAXS/WAXS on the a-P/C as the Anode for Na-Ion Batteriescitations
- 2017Templated Sub-100-nm-Thick Double-Gyroid Structure from Si-Containing Block Copolymer Thin Filmscitations
- 2017On the Dimensional Control of 2D Hybrid Nanomaterialscitations
- 2017Sub-micrometer structure formation during spin coating revealed by time-resolved in situ laser and X-ray scatteringcitations
- 2017N-Type Organic Thermoelectricscitations
- 2016Structurally-driven Enhancement of Thermoelectric Properties within Poly(3,4-ethylenedioxythiophene) thin Filmscitations
- 2016Bundle Formation in Biomimetic Hydrogelscitations
- 2016Improving Stiffness, Strength, and Toughness of Poly(omega-pentadecalactone) Fibers through in Situ Reinforcement with a Vanillic Acid-Based Thermotropic Liquid Crystalline Polyestercitations
- 2016Tuning Ordered Pattern of Pd Species through Controlled Block Copolymer Self-Assemblycitations
- 2015About the Interactions Controlling Nafion's Viscoelastic Properties and Morphologycitations
- 2015Polymer Solar Cellscitations
- 2015In situ monitoring of laser-induced periodic surface structures formation on polymer films by grazing incidence small-angle X-ray scatteringcitations
- 2015Photoresponsive Nanoporous Smectic Liquid Crystalline Polymer Networkscitations
- 2015Unusual Melting Behavior in Flow Induced Crystallization of LLDPEcitations
- 2014Influence of metal-support interaction on the surface structure of gold nanoclusters deposited on native SiO(x)/Si substratescitations
- 2014Kinetics of the polymorphic transition in isotactic poly(1-butene) under uniaxial extension. New insights from designed mechanical historiescitations
- 2014A high pressure cell for supercritical CO2 on-line chemical reactions studied with x-ray techniquescitations
- 2007Small-angle energy-dispersive X-ray scattering using a laboratory-based diffractometer with a conventional sourcecitations
Places of action
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article
Nickel Boride (NixB) Nanocrystals
Abstract
<p>Metal borides, a class of materials intensively used in industry as superconductors, magnetic materials, or hot cathodes, remain largely unexplored at the nanoscale mainly due to the difficulty in synthesizing single-phase nanocrystals. Recent works have shown that synthetic methods at lower temperatures (<400 °C) yield amorphous polydisperse nanoparticles, while phase purity is an issue at higher temperatures. Among all the metal-rich borides, nickel borides (Ni<sub>x</sub>B) could be a potential catalyst for a broad range of applications (hydrogenations, electrochemical hydrogen, and oxygen evolution reactions) under challenging conditions (such as high pH or high temperatures). Here, we report a novel solid-state method to synthesize Ni<sub>x</sub>B nanopowders (with a diameter of approximately 45 nm) and their conversion into colloidal suspensions (inks) through treatment of the nanocrystal surface. For the solid-state synthesis, we used commercially available salts and explored the reaction between the Ni and B sources while varying the synthetic parameters under mild and solvent-free reaction conditions. We show that pure phase Ni<sub>3</sub>B and Ni<sub>2</sub>B NCs can be obtained with high yield in the pure phase using as precursors NiCl<sub>2</sub> and Ni, respectively. Through extensive mechanistic studies, we show that Ni nanoclusters (1-2 nm) are an intermediate in the boriding process, while the metal co-reactant lowers the decomposition temperature of NaBH<sub>4</sub> (used as a reducing agent and B source). Size control can instead be exerted through reaction mediators, as seen from the differential nucleation and growth of Ni (clusters) or Ni<sub>x</sub>B NCs when employing L- (amine, phosphine) and X-type (carboxylate) mediators. Applying surface engineering methods to our Ni<sub>x</sub>B NCs, we stabilized them with inorganic (NOBF<sub>4</sub>) or organic (borane tert-butyl amine, oleylamine) ligands in the appropriate solvent (DMSO, hexane). With this method, we produce stable inks for further solution processing applications. Our results provide tools for further development of catalysts based on Ni<sub>x</sub>B NCs and pave the way for synthesizing other metal boride colloidal nanostructures.</p>