A5018736655- Hydrogen Storage and Materials
- Advanced Battery Materials and Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Advancements in Battery Materials
- CO2 Reduction Techniques and Catalysts
- Hybrid Renewable Energy Systems
- Gas Sensing Nanomaterials and Sensors
- Advanced Thermoelectric Materials and Devices
- Ionic liquids properties and applications
- Superconductivity in MgB2 and Alloys
- Fuel Cells and Related Materials
- Advanced NMR Techniques and Applications
- Advanced Battery Technologies Research
- Inorganic Chemistry and Materials
- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Nuclear Materials and Properties
- Thermal Expansion and Ionic Conductivity
- Inorganic Fluorides and Related Compounds
- Boron and Carbon Nanomaterials Research
- Advancements in Semiconductor Devices and Circuit Design
- Catalysts for Methane Reforming
- MXene and MAX Phase Materials
- Advanced Chemical Sensor Technologies
- Nanomaterials for catalytic reactions
Utrecht University
2016-2025
African Institute of Science and Technology
2023-2024
Cancer Genomics Centre
2014-2020
Delft University of Technology
2013-2016
Magnesium hydride owns the largest share of publications on solid materials for hydrogen storage. The group international experts contributing to IEA Task 32 Hydrogen Based Energy Storage recently published two review papers presenting activities focused magnesium based and Mg compounds energy This article not only overviews latest both fundamental aspects Mg-based hydrides their applications, but also presents a historic overview topic outlines projected future developments. Particular...
Liquid hydrogen carriers are considered to be attractive storage options because of their ease integration into existing chemical transportation infrastructures when compared with liquid or compressed hydrogen. The development such forms part the work International Energy Agency Task 32: Hydrogen-Based Storage. Here, we report state-of-the-art for ammonia-based and organic carriers, a particular focus on challenge ensuring easily regenerable, high-density storage.
Lithium borohydride (LiBH4) is a promising material for hydrogen storage, with gravimetric content of 18.5%. However, the thermodynamics and kinetics its release uptake need to be improved before it can meet requirements mobile applications. In this study, we investigate confinement LiBH4 in ordered mesoporous SiO2 effect on sorption properties. We demonstrate that, only under pressure, melt infiltration an effective method synthesis LiBH4/SBA-15 nanocomposites. Our work clearly shows that...
The reversible hydrogen capacity of LiBH(4) was improved by a combination Ni addition, nanosizing and confinement the active phase in nanoporous carbon scaffold.
NaBH4 is an interesting hydrogen storage material for mobile applications due to its high content of 10.8 wt%. However, practical use hampered by the temperatures (above 500 °C) required release and non reversibility sorption. In this study, we show that upon heating 600 °C, bulk decomposed into Na Na2B12H12, releasing expected 8.1wt% hydrogen. Nanosizing confinement in porous carbon resulted much faster desorption kinetics. The onset was reduced from 470 °C below 250 nanocomposites....
In this work we characterize all-solid-state lithium-sulfur batteries based on nano-confined LiBH4 in mesoporous silica as solid electrolytes. The has fast ionic lithium conductivity at room temperature, 0.1 mScm−1, negligible electronic and its cationic transport number (t+ = 0.96), close to unity, demonstrates a purely conductor. electrolyte an excellent stability against metal. behavior of the is studied by cyclic voltammetry repeated charge/discharge cycles galvanostatic conditions. show...
Solid-state ion conductors are gaining increasing importance, among other conductors, to enable a transition next-generation all-solid-state Li batteries. However, few lightweight and low-cost materials show sufficiently high Li-ion conduction at room temperature be used as solid electrolytes. Here, we report the effect of adding nanosized oxides, SiO2, CaO, MgO, γ-Al2O3, TiO2, ZrO2, LiBH4 by ball-milling. In all cases, conductivity was greatly enhanced. For which has been reported before...
LiBH4 has been widely studied as a solid-state electrolyte in Li-ion batteries working at 120 °C due to the low ionic conductivity room temperature. In this work, by mixing with MgO, of improved. The optimum composition mixture is 53 v/v % showing 2.86 × 10–4 S cm–1 20 °C. formation composite does not affect electrochemical stability window, which similar that pure (about 2.2 V vs Li+/Li). incorporated TiS2/Li all-solid-state battery. A test temperature showed only five cycles already...
Abstract Intense literature and research efforts have focussed on the exploration of complex hydrides for energy storage applications over past decades. A focus was dedicated to determination their thermodynamic hydrogen properties, due high gravimetric volumetric capacities, but application has been limited because harsh working conditions reversible release uptake. The present review aims at appraising recent advances different hydride systems, coming from proficient collaborative...
Abstract The development of efficient storage systems is one the keys to success energy transition. There are many ways store energy, but among them, electrochemical particularly valuable because it can electrons produced by renewable energies with a very good efficiency. However, solutions currently available on market remain unsuitable in terms capacity, recharging kinetics, durability, and cost. Technological breakthroughs therefore expected meet growing need for storage. Within framework...
Steering the selectivity of electrocatalysts toward desired product is crucial in electrochemical reduction CO
Metal hydrides capable of transporting hydride-ions have recently attracted attention due to their potential for applications in a wide range electrochemical conversion processes that involve hydrogen. Here, we report on the synthesis and hydride-ion conductivity K2MgH4, mixed hydride-electronic conductor. K2MgH4 is synthesized via thermal, mechanochemical, combined thermal–mechanochemical methods. We show route strongly influences material's structure, hydrogen content, thus, its...
There is a great interest in the development of reliable and low‐cost hydrogen sensors for applications economy, industrial processes, space application, detection environmental pollution, biomedical applications. Here, new type optical detector that indicates presence concentration range 5 ppm to 0.1 vol% H 2 merely by reversible tunable color change reported. The device takes advantage properties Pd‐capped Y thin film upon exposure , while tuned using interference light reflected between...
The structural and dynamical properties of LiBH4 confined in porous carbon ordered silica are studied using 1H, 7Li, 11B solid-state NMR. 7Li NMR resonances (broad pore size distribution up to <60 nm) strongly broadened compared bulk LiBH4. This line broadening is dominated by anisotropic susceptibility effects induced the nanostructured host. Because lack resolution caused broadening, we (MCM-41 size: 1.9 nm). In spectra, a bulk-like resonance observed together with an additional, more...
LiBH4 is a promising material for hydrogen storage and as solid-state electrolyte Li ion batteries. Confining in porous scaffolds improves its desorption kinetics, reversibility, Li+ conductivity, but little known about the influence of chemical nature scaffold. Here, quasielastic neutron scattering calorimetric measurements were used to study support effects confined nanoporous silica carbon scaffolds. Pore radii varied from 8 Å 20 nm, with increasing confinement observed decreasing pore...
Abstract Efficient storage of hydrogen is one the biggest challenges towards a potential economy. Hydrogen in liquid carriers an attractive alternative to compression or liquefaction at low temperatures. Liquid can be stored cost-effectively and transportation distribution integrated into existing infrastructures. The development efficient part work International Energy Agency Task 40: Hydrogen-Based Storage. Here, we report state-of-the-art for ammonia closed CO 2 -cycle methanol-based...
Abstract Solid‐state electrolytes (SSEs) with high ionic conductivities are crucial for safer and high‐capacity batteries. Interface effects in nanocomposites of SSEs insulators can lead to profound increases conductivity. Understanding the composition interface is tuning conductivity composite solid electrolytes. Herein, X‐ray Raman Scattering (XRS) spectroscopy used first time unravel nature responsible enhancements complex hydride‐based (LiBH 4 , NaBH NaNH 2 ) oxides. XRS probe Li, Na, B...
The catalytic properties of Pd alloy thin films are enhanced by a sputtered PTFE coating, resulting in profound improvements hydrogen adsorption and desorption Pd-based Pd-catalyzed sensors storage materials. remarkably performance is attributed to chemical modifications the catalyst surface leading possible change binding strength intermediate species involved sorption process.
Nanoconfinement and the use of catalysts are promising strategies to enhance reversibility hydrogen storage in light metal hydrides. We combined nanoconfinement LiBH4 nanoporous carbon with addition Ni. Samples were prepared by deposition 5–6 nm Ni nanoparticles inside porous carbon, followed melt infiltration LiBH4. The has only a slight influence on desorption, but significantly enhances subsequent uptake under mild conditions. Reversible, limited, intercalation Li is observed during...
Hydrogen is a key element in the energy transition. Hydrogen-metal systems have been studied for various energy-related applications, e.g., their use reversible hydrogen storage, catalysis, sensing, and rechargeable batteries. These applications depend strongly on thermodynamics of metal-hydrogen system. Therefore, tailoring interactions crucial tuning properties metal hydrides. Here we present case large hydride destabilization by elastic strain. The addition small amounts zirconium to...
Solid-state electrolytes are crucial for the realization of safe and high capacity all-solid-state batteries. Lithium-containing complex hydrides represent a promising class solid-state electrolytes, but they exhibit low ionic conductivities at room temperature. Ion substitution nanoconfinement main strategies to overcome this challenge. Here, we report on synthesis nanoconfined anion-substituted in which two effectively combined achieve profound increase ambient We show that anion...
Complex metal hydrides have recently gained interest as solid electrolytes for all-solid-state batteries due to their light weight, easy deformability, and fast ion mobility at elevated temperatures. However, increasing low conductivity room temperature is a prerequisite application. In this review, two strategies enhance in complex hydrides, nanostructuring nanocomposite formation, are highlighted. First, the recent achievements nanostructured hydride-based conductors hydride/metal oxide...