Articles tagged with Transition Metal Oxides
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Researchers developed a new atomically layered material that reduces resistivity by five orders of magnitude when oxidized, exceeding similar non-layered materials. The team discovered a synergy between oxidation and structural modification driving dramatic changes in physical properties.
Researchers at Pohang University of Science & Technology have developed a novel iron-based catalyst that more than doubles the conversion efficiency of thermochemical green hydrogen production. The new catalyst, iron-poor nickel ferrite (Fe-poor NiFe2O4), enables significantly greater oxygen capacity even at lower temperatures.
Researchers from Osaka University have developed an ultrathin vanadium dioxide film on a flexible substrate, preserving its electrical properties. This breakthrough enables adaptable electronics that can adjust to temperature, pressure, or impact in real-time.
A team of scientists leveraged machine learning to find promising compositions for sodium-ion batteries, achieving exceptional energy density. The study trained a model on a database of 100 samples to predict the optimal ratio of elements needed to balance properties like operating voltage and capacity retention.
Researchers at Worcester Polytechnic Institute have developed a material to selectively oxidize urea in water, producing hydrogen gas. The material, made of nickel and cobalt atoms with tailored electronic structures, enables the efficient conversion of urea into hydrogen through an electrochemical reaction.
Scientists have observed an anisotropic anomalous Hall effect in a spinel oxide thin film with conical magnetic anisotropy. The findings propose a physical model that explains the phenomenon without violating Onsager's reciprocal theorem.
Scientists have developed a new material that can store data even when power is off, using thermally reversible switching. This breakthrough could lead to devices with longer lifetimes and improved sustainability.
Researchers at KAUST used laser pulses to modify MXene, a promising alternative electrode material, boosting its energy capacity by four-fold. The laser treatment also reduced material's oxygen content and strengthened connections between nanodots and layers, stabilizing structure during charging and discharging.
Researchers at Tokyo Institute of Technology have discovered a new approach to improve the performance of thermoelectric materials by substituting hydrogen for oxygen. This substitution reduces thermal conductivity while maintaining high electronic conductivity, leading to improved thermoelectric conversion efficiency.
Researchers from Gwangju Institute of Science and Technology have developed a method to eliminate residual organic metal-binding ligands from transition metal oxide thin films, resulting in improved device stability and performance. The technique achieved a 20-fold enhancement in electrical conductivity and a 17.6% increase in efficiency.
A new electrode material Co3O4@NiMoO4 has been developed for flexible hybrid capacitors, exhibiting high energy density and long cycle stability. The material was grown on porous nickel foam using a two-step hydrothermal method, providing a conductive skeleton for the electrodes.
Researchers have successfully isolated and characterized rhodium(VII), the third-highest oxidation state of an element, using advanced ion trap technology. This discovery has significant implications for understanding exotic transition metal oxides and potential applications in materials science.
Researchers have demonstrated the Kondo effect in a transition metal oxide, CCRO, with a high Kondo temperature of at least 500K. The study resolves previous conflicting discussions and brings the Kondo field into the research area of transition metal oxides.
Researchers developed a new method to significantly enhance thermoelectric voltage at low temperatures by creating laminate structures with transition metal oxide and insulating layers. The 'phonon-drag effect' is responsible for the enhancement, where flowing phonons drive electrons to produce extra thermoelectric voltage.
Scientists from Tokyo Metropolitan University have developed a scalable method to create ordered porous metallic oxide thin films using a range of transition metals. The process enables the production of highly ordered nanohole arrays ideal for various industrial applications.
Scientists have discovered a new approach to tailor interface properties of metal oxide sandwiches, allowing for the control of ferromagnetism and superconductivity. The team found that the charge transfer between materials strongly depends on the rare earth element used, enabling the manipulation of interfacial phases.
Researchers at Berkeley Lab solved the structure of lithium- and manganese-rich transition metal oxides using complementary microscopy and spectroscopy techniques. The study revealed that the material is defected single-phase monoclinic, ruling out two popular theories.
Scientists at Cornell University have successfully switched a particular transition metal oxide from a metal to an insulator by making it less than a nanometer thick. This breakthrough discovery has the potential to revolutionize the development of ultra-thin electronic devices.
Chongwu Zhou's new method allows for the creation of dense arrays of ultrafine wires made of magnesium oxide coated with uniform, precisely controlled layers of TMO. The technique enables the production of nanocables with extraordinary properties, including high-temperature superconductivity and magnetic applications.