Biomimetic environmental benign synthesis of electrocatalysts with inexpensive transition metal compounds is a promising approach to achieve clean hydrogen production with high sustainability via water splitting. Herein, a mussel-inspired facile synthesis of N-carbon encapsulated molybdenum carb...

Transition metal phosphides are arguably the most promising non-precious metal-based materials for hydrogen evolution reaction (HER). Unfortunately, their high preparation temperature usually results in particle sintering. It is challenging to achieve the ultra-dispersion of transition metal pho...

Molybdenum phosphide (MoP) was firstly used as a catalyst for partial oxidation of methane (POM) and its catalytic performance for POM was compared with that for dry reforming of methane (DRM). It was found that the MoP phase was the dominant active site in POM and DRM reactions, and the activit...

The effect of crystal structural defects on superconductivity was investigated in two types of rock salt-type niobium oxynitride structures, (Nb0·87Si0.09□0.04) (N0·87O0.13) and Nb4(N,O)5. The first oxynitride had been reported to have an enhanced critical superconducting current Jc by the do...

A trimetallic sulfide cluster [Nb3(η5-C5Me5)3Cl3(μ3-Cl)(μ-S)3(μ3-S)] (2) has been synthesized from the reaction of [Nb(η5-C5Me5)Cl4] (1) with (Me3Si)2S in a 4:3 ratio by the release of SiClMe3. The trinuclear nature of complex 2 has been established by single crystal X-ray diffraction analy...

Niobium carbonitride [Nb(C,N)] nanoparticles were synthesized by a combustive mechanochemical reaction in the Mg/Nb2O5/C3H6N6 system. High-energy ball milling was used to promote a mechanically induced self-sustaining reaction (MSR). Combustion occurred after a very short milling period of 5 min...

In this paper, in order to investigate the dependence of oxidation state of metal oxides, adsorption reaction of a MgH2 on Nb2O5 ((1 0 0), (0 1 0), (0 0 1)) and NbO {1 0 0} surfaces, in which the valence states of the Nb are +5 and +2, respectively, were mainly investigated using periodic Densit...

Magnesium hydride (MgH2) is one of the most promising high-capacity hydrogen storage materials. However, limited progress has been made in storing hydrogen in Mg under ambient conditions. Here, we demonstrate for the first time that the dehydrogenated MgH2 is fully hydrogenated below 100 °C wit...

Brief measurement of X-ray spectra using a detector, consisting of an LYSO [Cerium doped Lutetium Yttrium Oxyorthosilicate, (Lu,Y)2SiO5:Ce] crystal and a μPMT (micro-photomultiplier tube) is described. X-ray photons are detected using the LYSO crystal and a 0.5-mm-diameter 3.0-mm-thick lead pin...

BackgroundThe development of new water-soluble photosensitizers for photodynamic therapy (PDT) applications is a very active research topic. Efforts have been made to obtain the far-red absorbing phthalocyanine complexes with molecular design that facilitates the uptake and selectivity for a hig...

The chemical synthesis of nickel manganite powder was performed by a complex polymerization method (CPM). The obtained fine nanoscaled powders were uniaxially pressed and sintered at different temperatures: 1000–1200 °C for 2 h, and different atmospheres: air and oxygen. The highest density wa...

In this study, a porous manganous oxide/graphene aerogel (MnO/GA) is synthesized via a facile sol-gel method used for the anode material of lithium-ion capacitor (LIC). The crystal and morphology characterizations confirm that the MnO nanocrystal grows directly on the graphene sheets of the thre...

The electrochemical behavior of chemically modified tunnel — type Ba6Mn24O48 powder and whiskers has been examined in terms of the lithium intercalation/deintercalation. A maximum overall specific capacity of 136 mAh/g was achieved for the nanostructured form of the proton-exchanged Ba6Mn24O48 ...

A systematic investigation on the structural, magnetic and magnetocaloric properties of Pr0.6Sr0.4–xAgxMnO3 (x=0.05 and 0.1) manganites was reported. Rietveld refinements of the X-ray diffraction patterns confirmed that all samples were single phase and crystallized in the orthorhombic structur...

Monovalent perovskite manganites La0.90Li0.10−xNaxMnO3 were synthesized by using the solid-state reaction method. The crystal structure analysis presented that the samples are a single-phase rhombohedral (R3¯c) structure with no detectable impurity phases. Magnetic measurement showed a cusp at ...

Penetration of lithium metal and uncontrollable growth of lithium dendrites of lithium metal batteries (LMBs) easily induce safety concerns. Herein, we propose a smart lithium-manganite/graphene-oxide/lithium (LMO/GO/Li) battery with rationally designed trilayer films as separator, in which GO f...

Multi-phase integration and structural hydration are effective material design strategies for advanced electrode materials with high capacity and fast lithiation. Herein, a novel layered-spinel lithium manganite hydrate is successfully synthesized through a one-step hydrothermal lithiation proce...

Lithium-sulfur (Li-S) batteries have become a research hotspot due to their high energy density, environment friendliness and low-cost. But commercial applications are hampered by rapid capacity fading and low sulfur content. Herein, the composite of integrating manganese oxide on graphene was p...

A new method for state of charge (SOC) assessment of Li/MnO2 primary batteries is disclosed. The method is based on thermodynamics data measurements and processing. Entropy ‘ΔS’ and enthalpy ‘ΔH’ data are collected during intermittent discharge process and tentatively linked to SOC. Using ...

Infrared emission at 1.2, 1.25, 1.67, 2.0, 2.2, 2.9, 3.9, and 4.9 μm is measured in holmium (Ho3+) doped gallium lanthanum sulphide (GLS) glass. Branching ratios, radiative quantum efficiencies, and emission cross-sections are calculated from lifetime, absorption, and emission measurements usin...