Recent studies of microdiamonds from orogenic belts related to continental collisions induced experimentalists to explore new crystallization media possible for diamond synthesis. This has led to considerable progress in diamond-synthesis experiments under high pressures and high temperatures. Diamond was found to grow in a wide variety of systems, which drastically differ from the metal-solven...

Key constraints related to the nature of alteration and mineralization in geologically complex economically important iron oxide copper–gold (IOCG) systems remain highly speculative, especially, physicochemical characteristics hydrothermal fluids. This study was conducted on samples from Khetri Copper Belt (KCB) western India that hosts several IOCG-type deposits. The aims constrain qualitative...

In this contribution, high ortho novolac resins modified with phenylboronic acid were synthesized. The thermal stability of novolac resins cured with hexamethylenetetramine (HMTA) and chemical states of B and N via a pyrolysis process were studied. For the cured o-novolac modified with phenylboronic acid, the temperature with maximum decomposition rate increased by 43.5 ̋C, and the char yield i...

The selection of an appropriate substrate is an important initial step for many studies of electrochemically active materials. In order to help researchers with the substrate selection process, we employ a consistent experimental methodology to evaluate the electrochemical reactivity and stability of seven potential substrate materials for electrocatalyst and photoelectrode evaluation. Using cy...

Cobalt was recovered electrogeneratively by using a batch cell. In this system, a spontaneous chemical reaction occurred where cobalt is reduced at the cathode and zinc is oxidized to produce a free flow of electrical energy without any external power supply. The performances of reticulated vitreous carbon (RVC) and porous graphite (PG) as cathodes were evaluated based on the time and percentag...

Herein described is a facile preparation protocol by which amino-alcohol derivatives of graphene oxide (GO) can be conveniently synthesized in high yield and short time an ultrasound treatment ethanol-graphite-oxide suspensions amines. Linear primary amines different chain length rapidly react with graphite oxides prepared from powder flakes, leading to the formation GO derivatives. Characteriz...

Dispersed wastes containing graphite, iron, and its oxides, getting into the air accumulating in landfills, cause serious harm to human health environment. Moreover, even if issue of localization these has been solved successfully, their disposal not yet fully organized. In present study, a systematic analysis dispersed iron-graphite waste (IGW) conditions for formation at metallurgical enterpr...

Nitrogen-doped graphene oxides (GO:Nx) were synthesized by a partial reduction of graphene oxide (GO) using urea [CO(NH2)2]. Their electronic/bonding structures were investigated using X-ray absorption near-edge structure (XANES), valence-band photoemission spectroscopy (VB-PES), X-ray emission spectroscopy (XES) and resonant inelastic X-ray scattering (RIXS). During GO:Nx synthesis, different ...

The past ¿fteen years have witnessed some of the more memorable discoveries in the ninety-year-old ¿eld of superconductivity, including the high-AS oxides in 1986 [1], the alkali-doped fullerenes in 1991 [2], the charge-injected fullerenes in 2000 [3], and the binary compound MgB2 in January 2001 [4]. The discovery of superconductivity at such high temperatures (40 K) in the simple rc R-metal c...

Nickel, cobalt, and manganese oxides are easily obtainable non-noble metal catalysts for water splitting. However, the relationship between composition catalysts’ performance still needs systematic studies. Herein, guided by theoretical calculations, a low overpotential, prepared Mn-doped Co3O4 was deposited on graphite plates The 30% (Co2.1Mn0.9O4) required lowest overpotential oxygen evolutio...