The Hydrogen Grand Challenge

Borgschulte, Andreas

doi:10.3389/fenrg.2016.00011

Cited by 56 publications

(32 citation statements)

References 65 publications

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“…In addition, the world's energy consumption is expected to be doubled by 2050, which requires the introduction of alternative energy sources to the energy grid [2]. Even though these alternative renewable sources are not competitive with fossil fuels at the moment [3], hydrogen as a secondary energy carrier has gained increasing attention in the last decade; however, significant technical and economical challenges, such as efficient production and storage need to be solved [4]. It has been reported that hydrogen can be stored either in molecular form by physisorption on the surface of carbon-based materials [5,6], or in atomic form by chemisorption in metal-based compounds [7,8].…”

Section: Introductionmentioning

confidence: 99%

Microstructural Investigation of Nanocrystalline Hydrogen-Storing Mg-Titanate Nanotube Composites Processed by High-Pressure Torsion

et al. 2020

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A high-energy ball milling and subsequent high-pressure torsion method was applied to synthesize nanocrystalline magnesium samples catalyzed by TiO2 or titanate nanotubes. The microstructure of the as-milled powders and the torqued bulk disks was characterized by X-ray diffraction. The recorded diffractograms have been evaluated by the convolutional multiple whole profile fitting algorithm, which provided microstructural parameters (average crystal size, crystallite size distribution, average dislocation density). The morphology of the nanotube-containing disks has been examined by high-resolution transmission electron microscopy. The effect of the different additives and preparation conditions on the hydrogen absorption behavior was investigated in a Sieverts’-type apparatus. It was found that the ball-milling route has a prominent effect on the dispersion and morphology of the titanate nanotubes, and the absorption capability of the Mg-based composite is highly dependent on these features.

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Section: Introductionmentioning

confidence: 99%

Microstructural Investigation of Nanocrystalline Hydrogen-Storing Mg-Titanate Nanotube Composites Processed by High-Pressure Torsion

et al. 2020

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“…Facing the 21st century energy challenge, dihydrogen production as an alternative fuel by catalytic water splitting is a central theme in the field of renewable energy storage . Platinum possesses the best performances among catalysts able to reduce protons to dihydrogen .…”

Section: Introductionmentioning

confidence: 99%

A Thiosemicarbazone–Nickel(II) Complex as Efficient Electrocatalyst for Hydrogen Evolution

Straistari

Fize

Shova³

et al. 2016

ChemCatChem

143

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We report herein the synthesis and characterization of a new mononuclear nickel complex based on a thiosemicarbazone ligand that exhibits an electrocatalytic behavior for H2 evolution in DMF using trifluoroacetic acid (TFA) as the proton source. Catalysis is observed at quite small overpotential values and a maximum turnover frequency (TOFmax) of 3080 s−1 was extrapolated for 1 m proton concentration using the foot‐of‐the wave analysis of cyclic voltammetry data. Gas analysis during controlled potential electrolysis experiments confirmed the catalytic nature of the process and production of dihydrogen with 80 % faradaic yield. Quantum chemical calculations indicate that the catalytic mechanism involves first ligand‐based reduction and protonation steps followed by metal‐centered processes.

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“…In the context of continued growth in energy demand, hydrogen can be a pertinent energy vector . Over the time, significant effort has been made in the field of renewable energy storage to design new molecular catalytic systems by focusing onto the synthesis of transition metal complexes active for electrocatalytic proton reduction .…”

Section: Introductionmentioning

confidence: 99%

Influence of the Metal Ion on the Electrocatalytic Hydrogen Production by a Thiosemicarbazone Palladium Complex

et al. 2018

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We describe the synthesis and characterization of a new mononuclear palladium complex (PdL) based on a thiosemicarbazone ligand. X-ray diffraction data collected on single crystals reveal that the complex is a neutral mononuclear entity with symmetric square-planar geometry around the metal center. The complex exhibits an electrocatalytic behavior for proton reduction in DMF solvent using trifluoroacetic acid (TFA) as a proton source. Gas analysis under controlled electrocatalytic [a] 2265 and the COST Action CM1202 Perspect-H 2 O (Supramolecular photocatalytic water splitting). The authors would like to thank Jennifer Fize and Dr. Vincent Artero for assistance in the electrocatalytic measurements and fruitful discussions.

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The Hydrogen Grand Challenge

Cited by 56 publications

References 65 publications

Microstructural Investigation of Nanocrystalline Hydrogen-Storing Mg-Titanate Nanotube Composites Processed by High-Pressure Torsion

Microstructural Investigation of Nanocrystalline Hydrogen-Storing Mg-Titanate Nanotube Composites Processed by High-Pressure Torsion

A Thiosemicarbazone–Nickel(II) Complex as Efficient Electrocatalyst for Hydrogen Evolution

Influence of the Metal Ion on the Electrocatalytic Hydrogen Production by a Thiosemicarbazone Palladium Complex

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