We demonstrate a facile, scalable and tunable method to produce a composite material based on graphene multilayers and Fe2O3, combining the good conductivity and 2D layered structure of the former and the lithium storage capacity of the latter. The composite was obtained directly from bulk graph...

In situ infrared reflection absorption spectroscopy yielded the first spectroscopic evidence that perchlorate anion is adsorbed on a Pt(111) electrode surface in a 0.1 M perchlorate acid solution over the potential range, 0.6 to 0.9 V vs. NHE. Both perchlorate and bisulfate anions were chemisorb...

Silicon-based nanocomposite materials have attracted noteworthy attention as a potential anode material for the lithium-ion rechargeable batteries. However, volume changes of the Si during the lithiation/delithiation result in inferior capacity retention and poor coulombic efficiency. In this wo...

We proposed a large-sized graphene preparation method by short-circuit discharge of the lithium-graphite primary battery for the first time. LiCx is obtained through lithium ions intercalation into graphite cathode in the above primary battery. Graphene was acquired by chemical reaction between ...

Much groundbreaking research in the field of lithium batteries occurred in the 1970s. Some of “the first” rechargeable lithium cells for commercial applications were fabricated by the Exxon Enterprises Battery Division in New Jersey. A small collection of 1978-era 25 mAh and 100 mAh button cel...

High-temperature thermal energy can be produced from renewable power sources such as high-temperature gas-cooled reactors and high-temperature thermal processes, without environmental pollution. Integration of thermochemical energy storage (TcES) systems within power generation systems provides ...

Carbon matrix (CM) derived from biomass is low cost and easily mass produced, showing great potential as sulfur host for lithium sulfur batteries. In this paper we report on a dihydrogen phosphate modified CM (PCM-650) prepared from luffa sponge (luffa acutangula) by phosphoric acid treatment. T...

In this study, a core-shell nanostructure Fe2O3 coated grass-like Mn3O4 supported on graphene has been designed and fabricated via a facile and convenient hydrothermal method and thermal treatment routes. The Fe2O3 coated Mn3O4 nanorods with diameter of 35–40 nm are convolved by flexible graphe...

A novel environment-friendly conversion coating for Mg–8.5Li alloy was obtained by immersing in a solution of molybdate. The concentration of ammonium molybdate and the addition of potassium permanganate were discussed in this experiment. The surface morphology of the conversion coatings was ob...

An N-doped MnO/rGO composite (N-MnO/rGO) was successfully fabricated by a one-step hydrothermal method in which histidine and potassium permanganate (KMnO4) reacted in water containing graphene oxide, and the product was then calcinated in a nitrogen (N2) atmosphere. The N-MnO/rGO presents an ex...

There is about 60,000 t of lithium mica in the German part of the deposit in the Erzgebirge mountains. Lithium can be recovered by high pressure-high temperature leaching with sulfuric acid and further hydrometallurgical processing. Another idea, developed in the EU-project FAME, was to use sulf...

In this paper, a three-dimensional hierarchical porous MnCo2O4@MnO2 network was prepared via a facile route and used as anode material for lithium-ion batteries. The prepared material possesses three-dimensional interconnect structure and abundant pore structure, which is favorable for alleviati...

The electrochemical performance of lithium ion batteries depend largely on the structural properties of electrode materials. In this work, we propose an approach to synthesize lithium-rich layered oxides (LLOs) materials using a manganese dioxide (MnO2) template strategy, which could control the...

A chrome-free conversion coating on magnesium–lithium alloy was obtained from a phosphate–permanganate solution. The morphology, the composition and the corrosion resistance of this coating were examined. The thin and non-penetrating cracked morphology with some deposits existed on the phospha...

Kinetic studies of isoprene cyclodimerization show that the accelerating effect caused by LPDE (solution of lithium perchlorate in diethyl ether) in some organic reactions cannot be ascribed to internal pressure of LPDE. The kinetic effect is essentially due to catalysis through Li+. Additional ...

The reaction at 300°C between molten lithium perchlorate and chromium(III) oxide gave lithium dichromate. When lithium perchlorate and chromium(III) oxide were in the formula weight ratio of 2:1 respectively, the chromium was oxidized completely into the hexavalent oxidation state, and only a n...

The influence of the oxides TiO2, V2O5, Co2O3, MnO2, Fe2O3, Co2O3, NiO, CuO, La2O3, CeO2, Pr6O11, Eu2O3, Gd2O3 and Tb4O7 on the thermal decomposition of lithium perchlorate trihydrate, was surveyed. Most of the oxides lowered the decomposition temperature of the anhydrous perchlorate; but their ...

Composite solid electrolytes 0.5LiClO4–0.5A with additives of nanocrystalline oxides A = α-Al2O3 γ-Al2O3, α-LiAlO2, γ-LiAlO2, were investigated by electrical measurements and 7Li MNR spectroscopy. It was found that composites containing γ-Al2O3 and γ-LiAlO2 have close conductivity paramet...

Densities and enthalpies of solution at 25 °C were measured for dilute solutions of magnesium perchlorate (MP) in some alcohols using the Anton Paar DSA 5000M vibrating tube densimeter and differential calorimetric measurements. In all studied solvents the solution of MP was highly exothermic a...

Molecular and ionic mobility in the pyroelectric solid hydrate LiClO4 · 3H2O has been studied by 1H and 7Li NMR. Spin-lattice relaxation times in the laboratory and rotating frames and dipolar relaxation times have been measured as a function of temperature for polycrystalline samples, and as a...