Currently, hydrogen production is based on the reforming process, leading to emission of pollutants; therefore, a substitute method imminently required. Water electrolysis an ideal alternative for large-scale production, as it does not produce any carbon-based pollutant byproducts. The green from water using intermittent sources (e.g., solar and eolic sources) would facilitate clean energy storage. However, electrocatalysts currently required are noble metals, making this potential option...

The world faces threats that the United Nations has classified into 17 categories with different objectives as solutions for each challenge are enclosed in Sustainable Development Goals (SDGs). These actions involved widespread use of science and technology pathways to ensure their implementation. In this regard, sustainability seeks research community's contribution addressing sustainable development challenges. Specifically, nanotechnology been recognized a key tool provide disruptive...

Detailed experimental and computational studies of the high selectivity for functionalization primary over secondary sp3 C−H bonds in alkanes by borane reagents catalyzed Cp*Rh complexes are reported. Prior have shown that Cp*Rh(X)(Bpin) (X = H or Bpin), generated from Cp*Rh(H)2(Bpin)2 Cp*Rh(H)2(Bpin)3, likely intermediates these catalytic reactions. To allow analysis system H/D exchange, current focused on reactions Cp*Rh(D)2(Bpin)2 through 16-electron species Cp*Rh(D)(Bpin). Density...

The high index of simultaneous incidence hypertension and hypercholesterolemia in the population many countries demands preparation more efficient drugs. Therefore, there is a significant area opportunity to provide as alternatives possible treat these illnesses. Taking advantage solubility enhancement that can be achieved when an active pharmaceutical ingredient (API) obtained stabilized its amorphous state, present work, new drug-drug co-amorphous formulations (Simvastatin SIM- Nifedipine...

Abstract Developing efficient and low‐cost electrocatalysts for the oxygen evolution reaction (OER) is crucial sustainable hydrogen production through water splitting. In this study, CoFe 2 O 4 NiFe nanoparticles as were prepared via an inexpensive method involving use of bicontinuous microemulsions nanoreactors. The crystalline structure, morphology, elemental composition characterized by XRD, Raman spectroscopy, TEM, EDS mapping. electronic structure textural properties examined using XPS...

With an interest in exploring the limits of relative cation/anion mobilities nonaqueous electrolyte solutions, we have measured diffusivities Li- and F-containing species 0.5 M solutions new lithium salt, bis(perfluoropinacolato) borate, LiBPFPB, which contains a giant anion with 24 fluorine atoms. Using pulsed field gradient spin echo method on NMR resonances temperature range 30-95°C find, for first time salt-in-molecular solvent that are higher than those anion-containing species....

The amorphous state is of particular interest in the pharmaceutical industry due to higher solubility that active ingredients show compared their respective crystalline forms. Due thermodynamic instability, drugs tend recrystallize; order avoid crystallization, it has been a common strategy add second component hinder and form thermally stable co-amorphous system, say, an binary system which retains its structure. can be small molecule excipient (such as sugar or aminoacid) drug, with...

We compare the physical properties and solution conductivities of three new lithium orthoborate salts with those well-known salt bis(trifluoromethanesulfonyl)imide (LiTFSI). The are bis(perfluoropinacolato)borate (LiBPFPB), bis(oxalato)borate, bis(malonato)borate (LiBMB). Computational models anions show that borate oxygens in anion least exposed. electronically identical but not other anions. closely approach LiTFSI surprising solvent-dependent orderings. conductivity is nearly independent...

FTIR spectroscopy in combination with ATR sampling technique is the most accessible analytical to study secondary structure of proteins both solid and aqueous solution. Although several studies have demonstrated applications ATR-FTIR conformational changes dried due dehydration, there are no reports that demonstrate application thermally induced biomolecules directly on state. In this study, four pharmaceutical interest, lysozyme, myoglobine, chymotripsin human growth hormone (hGH), were...

Flavonoids are natural products commonly found in the human diet that show antioxidant, anti-inflammatory and anti-hepatotoxic activities. These nutraceutical properties may relate to electrochemical activity of flavonoids. To increase understanding structure-electrochemical relations inductive effects OH substituents have on redox potential flavonoids, we carried out square-wave voltammetry experiments ab initio calculations eight flavonoids selected following a systematic variation number...

Starch-capped Cu₂O nanocubes were used as an active electrochemical element to directly detect glucose.

As part of a search for chemically and electrochemically stable ambient temperature molten lithium salt systems, we have investigated the properties solutions LiAlCl4 with various second components. In this paper review factors which determine conductivity report results two one satisfies stability requirements although failing to provide high conductivities are needed successful Li battery electrolyte. These ionic appear be very fragile liquids. Evidence is found mixing incompatibility...

Bicontinuous microemulsions (BCME) were used to synthesize hierarchical superstructures (HSs) of Pt-Co3O4 by reduction/precipitation. BCMEs possess water and oil nanochannels, therefore, both hydrophilic lipophilic precursors can be used. Thus, PtAq-CoAq, PtAq-CoOi, PtOi-CoAq PtOi-CoOi prepared (where Aq Oi stand for the precursor present in aqueous or oily phase, respectively). The characterization Pt-Co3O4-HS confirmed formation metallic Pt Co3O4 whose composition morphology are controlled...

We investigate the effect of lattice disorder and local correlation effects in finite periodic silicene structures caused by carbon doping using first-principles calculations. For both structures, electronic properties carbon-doped monolayers are dramatically changed controlling sites which is related to amount introduced electron-electron effects. By changing position dopants, we found that a Mott-Anderson transition achieved. Moreover, band gap determined level Finally, these ferromagnetic...

Abstract Nickel and nickel‐based nanomaterials are an attractive choice to replace noble metals as electrocatalysts in alkaline direct alcohol fuel cells (ADAFCs) owing their lower cost suitable electrocatalytic activity. Among the different synthetic methods available for production of nanostructured materials, galvanostatic electrodeposition offers a fast simple means fabricating active electrodes. Therefore, thin‐layers nickel were electrodeposited onto polycrystalline gold electrodes...

Current hydrogen production is based on the reforming process leading to emission of pollutants; therefore, a substitute method imminently required. Water electrolysis an ideal alternative for large-scale production, as it does not produce any carbon-based pollutant byproducts. Production green from water using intermittent sources (e.g., solar, eolic) would facilitate clean energy storage. However, electrocatalysts currently required are noble metals, making this potential option expensive...