We report the effect of PrOx addition on the oxygen reduction reaction (ORR) mechanism of a [Ca2CoO3-δ]q[CoO2] SOFC cathode (also known as Ca3Co4O9-δ, C349) obtained by solid-state synthesis of a stoichiometric mixture of mollusk shell powder (a natural source of calcium carbonate) and cobalt ...

Boron and praseodymium doped bismuth oxide nanocomposites were prepared through polymeric precursor technique. The nanocomposites were then sintered to identify the changes in the microstructures of the nanocomposites. The microstructural properties of the nanocomposites were investigated by mea...

The applications of praseodymium oxide (Pr6O11) nanomaterials in catalysis, oxygen storage materials, and optical devices are the emergent areas that possess an urgent requirement for the toxicological evaluation of these nanomaterials to determine their impact on the ecology. In the present wor...

PrBaMn2O5+δ (PBMO) is one of the promising electrode materials for symmetrical solid oxide fuel cells, but suffers from limited electrocatalytic activity. In this work, nanosized Pr6O11 particles were introduced into PBMO backbone on both anode and cathode as synergic catalysts and to optimize ...

The effects of steel surface treatment by a novel nanofilm based on praseodymium oxide on the interfacial adhesion, corrosion protection properties and cathodic delamination rate of a polyester-melamine coating were studied by combined experimental and theoretical molecular dynamics (MD) and qua...

A praseodymium (Pr)-doped PbO2 electrode was synthesized by a co-deposition method with the help of polyethylene glycol (PEG). The morphologies and structures were characterized by X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. The electrochemical properti...

Praseodymium oxide (Pr6O11) coated peanut-like lithium nickel cobalt manganese oxide (LiNi1/3Co1/3Mn1/3O2) microspheres has been prepared by a simple dip-dry method. The structure and morphology of the as-prepared samples were characterized by X-ray diffraction and electron microscopy. The resul...

In the southern corn blight fungus, Bipolaris maydis, five polyoxin-resistance genes (Pol1 to Pol5) have been reported. Pol2 and Pol5 are pleiotropic for not only polyoxin resistance but also reddish brown colonies. Here, we used a comparative genomics approach to identify Pol2 and Pol5 at a mol...

The inhibition mechanism of quinomycin A on the multiplication of phage T2 was investigated. The antibiotic inhibited the multiplication of phage progeny without measurable interference with the synthesis of the phage DNA, RNA or protein (coat protein, tail fiber and possibly lysozyme). Phage DN...

A quinomycin antibiotic UK-63052 (designated QN) exhibits a chemical structure related to the antibiotic echinomycin which is known to bisintercalate into DNA. Common features among these antibiotics include two heterocyclic aromatic ring systems propagating from a cross-bridged cyclic octadepsi...

The Carbon [email protected] sulfide core-shell nanocomposites for different mole ratios of Carbon sphere (0:1; 0.5:1 and 1:1) have been synthesized by a facile low temperature water-bath method without any further calcination. XRD studies on the core-shell nanocomposites show that characteristi...

Rational design and synthesis of transition metal sulfide complex nanostructures are significant for achieving desired materials properties for a variety of applications. Herein, we synthesized nickel sulfide (NiS) nanostructures using laser irradiation in an aqueous solution and under the ambie...

In this work, a “Co2+ doping” new strategy is proposed to promote the high rate performance and extend the cycling life of nickel-based sulfides. The Co2+ doped Ni3S4 nanosheets are prepared at mild conditions by a scalable method of solid-state reaction. The preparation of doped sulfide inclu...

Nickel sulfide powders were synthesized through solution combustion method using a suitable combination of thiourea fuel as reducing/sulfidizing agent with glycine fuel as auxiliary reductant agent. Effects of fuel contents on the combustion behavior, phase evolution, microstructure and optical ...

The low-temperature calcination of nickel sulphide concentrates with sodium chloride and subsequent hydrometallurgical processing is a promising alternative methods. This study aims to identify the interaction products of sulphide nickel concentrate components with sodium chloride at temperature...

Here, a facile and effective approach for achieving high stable lithium rechargeable batteries with varies rates based on a three-dimensional nickel sulfide cathode is demonstrated. The nickel sulfide cathode can deliver an initial specific capacity of 1326.6 mAh g−1 at a current rate of 0.2 C. ...

Nitrogen-Doped graphene is reportedly said to be engineered in fine-tuning its electrochemical performance to suit the high energy requirements of supercapacitors. In an attempt, nickel sulfide nanoflakes are anchored on the surface of N-doped graphene under hydrothermal environment. XRD data id...

Manganese carbonate (MnCO3) nanowires and microcubes were controlled synthesized by a simple ethylene glycol (EG) mediated solution method. The volume ratios of EG and water has a decisive impact on the morphology of MnCO3 products. With a decreased water volume, MnCO3 products were transformed ...

Spinel-structured lithium manganese oxides are considered as promising cathode material, however, their widespread commercial application remains hampered by their poor surface instability. To overcome these problems, we designed and synthesized task-specific ionic liquid additives that can effe...

Ternary metal fluoride FexMn1−xF2 (x = 0.00, 0.25, 0.50, 0.75, and 1.00), which is a potential cathode material for next-generation Li-ion batteries, were synthesized via a convenient, low-temperature, bottom-up solution-phase method. The lattice dimensions deduced from X-ray diffraction suggest...